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1994 data sheet bipolar analog integrated circuit m pc1830 filter-containing video chroma, synchronizing signal processing lsi compatible with ntsc/pal system description the m pc1830 is a filter-containing video chroma, synchronizing signal processing lsi compatible with the ntsc/ pal system. a decoder which converts composite video or separate y/c video signals into a brightness signal and a color difference signal and outputs the result, and a matrix which comprises independent brightness signal/color difference signal input pins are integrated on one chip. decoder output can be used to drive an a/d converter; it is appropriate for picture-in-picture screen signal processing and multimedia boards. features ? contains a trap filter, band-pass filter, delay line, and color difference output low-pass filter. peripheral parts can be drastically reduced. ? low power consumption appropriate for use with digital boards because of 5-v single power supply operation. ? dc control for user adjustment pins centralized control can be performed by a microcontroller. ? one chip compatible with both ntsc and pal systems boards common to ntsc and pal systems can be easily constructed. ? s pin input supports composite and separate y/c video signal inputs. ? demodulation ratio/demodulation angle change (matrix) demodulation ratio/demodulation angle can be selected in response to the ntsc or pal system. ? contains color difference tint control fine adjustment of the demodulation axis can be made for both the ntsc and pal systems. ordering information part number package m pc1830gt 42-pin plastic shrink sop (375 mil) the information in this document is subject to change without notice. the mark shows major revised points. document no. s11146ej4v0ds00 (4th edition) date published april 1998 n cp(k) printed in japan
m pc1830 2 1. system block diagram video capture system block diagram ntsc 3.58 pal 4.43 rgb or yuv rgb/color difference decoder pc1830 clamp pulse 8-bit a/d pc659a 8 8 8 clp 910 f h hd vd blk h lock clock generator divider composite video or y/c separate signal input digital video (rgb or yuv) signal output m m 8-bit a/d pc659a m 8-bit a/d pc659a m
m pc1830 3 2. block diagram 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 r g b mode switch sync. separate v filter h sync. detect h/v count 32 f h vco afc wave detect clamp chroma trap separate/composite switch separate/composite switch, a cc amp. subcolor control delay hd, vd, blanking pulse, killer output buffer chroma bpf contrast control lpf y, r-y, b-y output buffer r-y, b-y modulate filter f 0 adjust 3.58 mhz/4.43 mhz vcxo, pal sw apc, killer detect, ident detect rgb output buffer ntsc/pal matrix tint control amp. color control y, r-y, b-y input clamp killer detect blk hd vd y r-y b-y r-y b-y y + + + v cc + v cc color control 50/60 v cc v cc + v cc + contrast control sub color control separate/ composite switch + + 3.58/4.43 ntsc/pal v cc cvbs separate chroma rgb r-y b-y g-y r-y b-y r-y b-y killer r-y b-y b-y r-y y y v h blk v h cf sc f sc c clamp pulse
m pc1830 4 3. pin configuration (top view) 42-pin plastic shrink sop (375 mil) m pc1830gt 142 241 340 4 39 538 637 736 835 934 10 33 11 32 12 31 13 30 14 29 15 28 16 27 17 26 18 25 19 24 20 23 21 22 32 f h vco filter 32 f h vco filter 32 f h vco filter horizontal afc filter gnd (synchronous section) f v 50/60 switch power supply (synchronous section) color killer output blanking pulse output hd pulse output vd pulse output y output r-y output b-y output gnd (video section) y input power supply (video section) r-y input b-y input color control tint control ntsc/pal switch f sc switch h sync. detect filter sync. separation input contrast control subcolor control composite video signal input power supply (chroma section) separate chroma input gnd (chroma section) acc filter fo adjustment filter chroma apc filter f sc vco input (4.43 mhz) f sc vco input (3.58 mhz) f sc vco output color killer filter b output g output r output clamp pulse input
m pc1830 5 4. pin equivalent circuit diagrams pin no. pin name equivalent circuit 1 32 f h vco filter 2 3 4 horizontal afc filter 5 gnd (synchronous section) function descriptions pins for connecting a 32 f h oscillation filter. for resonator, use 500 khz ceramic resonator in both ntsc and pal modes. bias of pin 1 is supplied from pin 2 via an external resistor between pins 1 and 2. pin for connecting filter of horizon- tal afc detector. synchronous section ground. 1 v cc 2 v cc 2.2 k w 3.3 k w 2.2 k w 3 v cc 1 ma 30 k w 4 3 k w 300 w v cc
m pc1830 6 vertical frequency (f v ) switch pin. when the pin voltage is 2.2 v or less, the vertical frequency changes to 50 hz; when 2.8 v or more, to 60 hz. synchronous section power supply. color killer output pin. horizontal blanking pulse output pin. hd pulse output pin vd pulse output pin. y signal is output. dc level is approx. 2.0 v. decoder r-y and b-y color difference signal output pins. dc level is approx. 2.5 v. video section ground. 6f v 50/60 switch 7 power supply (synchronous section) 8 color killer output 9 blanking pulse output 10 hd pulse output 11 vd pulse output 12 y output 13 r-y output 14 b-y output 15 gnd (video section) pin no. pin name equivalent circuit function descriptions 6 v cc 5 k w 20 a m 8 9 10 11 40 k w 500 w 1 k w 500 w v cc 12 13 14 50 w v cc 2 ma
m pc1830 7 16 y input 17 power supply (video section) 18 r-y input 19 b-y input 20 color control 21 tint control matrix y signal input pin. this pin also serves as a clamp pin. input the signal with c coupling. dc level is approx. 2.0 v. video section power supply. matrix r-y and b-y color difference signal input pins. these pins also serve as clamp pins. input the signals with c coupling. dc level is approx. 2.5 v. output in pal mode is pseud pal. pin for color adjustment of matrix circuit. pin for tint adjustment of matrix circuit. pin no. pin name equivalent circuit function descriptions 16 v cc 5 k w 40 a 5 k w m 18 v cc 5 k w 40 a 5 k w 19 m 20 v cc 10 k w 40 k w 70 k w 21
m pc1830 8 22 clamp pulse input 23 r output 24 g output 25 b output 26 color killer filter 27 f sc vco output matrix clamp pulse input pin. clamp operation is performed at 2.8 v or more. matrix r, g, and b output pins. dc level is approx. 2.0 v. sync. signal component, added to y-input (16 pin), appears in r, g, and b output pins. filter connection pin of color killer sync detector. f sc vco oscillator output pin. connect this pin to pin 28 via a 3.58 mhz oscillation filter and to pin 29 via a 4.43 mhz oscillation filter. pin no. pin name equivalent circuit function descriptions v cc 20 a 10 k w 22 m v cc 2 ma 23 24 25 50 w 26 500 w v cc 10 k w 10 k w 27 v cc 3.3 k w 125 w 125 w 2.9 ma
m pc1830 9 28 f sc vco input (3.58 mhz) 29 f sc vco input (4.43 mhz) 30 chroma apc filter f sc vco input pins. connect a 3.58 mhz oscillation filter between pins 27 and 28 and a 4.43 mhz oscillation filter between pins 27 and 29. switch of pin 28 input and pin 29 input is suppressed in response to pin 41 (f sc switch) voltage. pin for connecting filter of chroma apc detector. pin no. pin name equivalent circuit function descriptions 28 v cc 5 k w 29 v cc v cc 5 k w 10 k w 20 k w 20 k w 10 k w 5 k w 5 k w 80 a 60/0 a 0/60 a m m m 30 v cc v cc 500 w 5 k w 50 k w
m pc1830 10 31 f o adjustment filter 32 acc filter 33 gnd (chroma section) 34 separate chroma input 35 power supply (chroma section) pin for connecting filter of f o automatic adjustment loop. pin for connecting filter of acc detector. chroma section ground. separate chroma signal input pin. this pin also serves as a separate and composite switch input pin. if the pin voltage is set to 3.7 v or more, composite input mode is entered. chroma section power supply. pin no. pin name equivalent circuit function descriptions 31 v cc 30 k w 500 w 32 v cc v cc 500 w 1 k w 5 k w 34 v cc 80 a 30 k w 5 k w m
m pc1830 11 36 composite video signal input 37 subcolor control 38 contrast control 39 sync. separation input composite video signal or separate y signal input pin. this pin also serves as a clamp pin. input the signal with c coupling. dc level is approx. 2.3 v. decoder color and contrast adjustment pins. input pin of sync. separation circuit. pin no. pin name equivalent circuit function descriptions 36 v cc 5 k w 5 k w 37 10 k w 40 k w 70 k w 38 v cc 39 5 k w v cc v cc 16 k w 100 w 167 w 5 k w 5 k w
m pc1830 12 pin for connecting filter of h sync. detector. pin for controlling f sc vco input (pins 28, 29) switch. when the pin voltage is 2.8 v or more, the mode changes to the 3.58 mhz mode; when 2.2 v or less, to the 4.43 mhz mode. pin for controlling switch of ntsc and pal modes of decoder and matrix. one of the following three combinations of decoder and matrix modes can be selected depending on the value of the pin 42 voltage v42: 1. when v42 = 0 v decoder = pal matrix = pal 2. when v42 = 2.5 v decoder = ntsc matrix = ntsc 3. when v42 = 5 v decoder = ntsc matrix = pal 40 h sync. detect filter 41 f sc switch 42 ntsc/pal switch pin no. pin name equivalent circuit function descriptions 40 v cc v cc 1 k w 10 k w 10 k w 41 v cc 20 a 5 k w m 42 v cc 5 k w 20 a 5 k w m
m pc1830 13 5. block operation 5.1 video signal processing section (1) input signal after coupling by a capacitor (0.22 m f), a 1 v p-p composite video signal is input to the composite video signal input pin (pin 36). (2) clamp circuit the clamp circuit controls the pedestal voltage level to be constant to make it a reference voltage for the post-stage signal processing. (3) chroma trap circuit eliminates the chroma signal (ntsc system: approximately 3.58 mhz, pal system: approximately 4.43 mhz) from a composite video signal and extracts a brightness signal. (4) separate/composite switching circuit operates as shown in table 5-1 according to the voltage of the separate chroma input pin (pin 34). table 5-1. operation when switching separate/composite signals separate chroma input mode brightness signal acc amp input pin (pin 34) voltage processing less than 3.7 v y/c separate input without chroma trap input from separate chroma 3.7 v or higher composite video input with chroma trap input from chroma bpf (5) delay circuit compensates for the delay between the brightness signal and chroma signal by delaying the brightness signal. (6) contrast adjustment circuit adjusts the amplitude of the brightness signal output from the y output pin (pin 12) according to the voltage of the contrast control pin (pin 38). the control characteristic is shown in figure 5-1.
m pc1830 14 figure 5-1. contrast control characteristic (a) ntsc mode (b) pal mode 5.2 chroma signal processing section (1) input signal ? composite video signal input after coupling by a capacitor (0.22 m f), a 1 v p-p composite video signal is input to the composite video signal input pin (pin 36). ? separate chroma signal input after coupling by a capacitor (1000 pf), a chroma signal whose burst signal amplitude is 150 mv p-p is input to the separate chroma input pin (pin 34). (2) chroma bpf circuit separates the chroma signal from a composite video signal. (3) separate/composite switching circuit when the potential of the separate chroma input pin (pin 34) is 3.7 v or higher (in composite mode), switches the acc amp input from the chroma input pin to the chroma bpf circuit output. processing of the brightness signal at this time is switched so that it passes through the chroma trap circuit. operation when switching separate/composite signals is shown in table 5-1. (4) acc (auto color control) amplification circuit extracts the burst signal, detects its level and smoothes the voltage of the acc filter pin (pin 32) by an external capacitor. this smoothed voltage controls color gain to keep the amplitude of the burst signal constant. 2 1 0 12345 y output voltage (v p-p ) contrast control pin voltage (v) v cc = 5 v 400 mv p-p stair step (composite) input 2 1 0 12345 y output voltage (v p-p ) contrast control pin voltage (v) v cc = 5 v 400 mv p-p stair step (composite) input
m pc1830 15 (5) subcolor control circuit according to the voltage of the subcolor control pin (pin 37), controls the amplitude of the chroma signal output from the acc amplification circuit after separating the burst signal from it, and adjusts the amplitude of the color difference signal output from the r-y output pin (pin 13) and b-y output pin (pin 14). this controls color density on the screen. the control characteristic is shown in figure 5-2. figure 5-2. subcolor control characteristic (a) ntsc mode (b) pal mode (6) chroma apc (auto phase control) circuit detects the phase difference between the burst signal extracted from the chroma signal and the signal from f sc vcxo and smoothes the chroma apc filter pin (pin 30) using a capacitor. this smoothed voltage is used to control the f sc vcxo oscillation frequency. (7) killer detection circuit detects the amplitude of the burst signal and executes a mute on the subcolor control circuit when there is no burst signal, preventing it from outputting a chroma signal to avoid color noise. in this case, the output of the color killer output pin (pin 8) is driven high. the color killer sensitivity is determined by the time constant of a resistor and capacitor connected to the color killer filter pin (pin 26). (8) ident detection circuit performs ident detection. with ident detection, if an ntsc signal (pal signal in ntsc mode) is input in pal mode, the color killer turns on and no chroma signal is output. (9) 3.58 mhz/4.43 mhz vcxo, pal sw circuit switches the f sc vco input pin between pin 28 (for 3.58 mhz) and pin 29 (for 4.43 mhz) by controlling the voltage of the f sc switching pin (pin 41) (2.8 v or higher: 3.58 mhz mode, 2.2 v or below: 4.43 mhz mode) to perform f sc oscillation at 3.58 mhz or 4.43 mhz. vcxo is controlled by the voltage of the chroma apc filter pin (pin 30) smoothed by the chroma apc circuit and its phase is synchronized with the input burst signal. the pal sw circuit inverts the phase of a signal on the r-y demodulation axis every 1h by ident detection. (10) r-y, b-y demodulation circuit performs demodulation using the chroma signal output from the acc circuit, an r-y demodulation axis signal and a b-y demodulation axis signal output from f sc vcxo, and multiplies r-y by 1.4 and b-y by 2.03. 3 2 1 0 12345 b-y output voltage (v) subcolor control pin voltage (v) color bar (composite, burst: 300 mv p-p ) input v cc = 5 v 3 2 1 0 12345 b-y output voltage (v) subcolor control pin voltage (v) color bar (composite, burst: 300 mv p-p ) input v cc = 5 v
m pc1830 16 5.3 matrix section (1) input signal ? brightness input signal after coupling by a capacitor (0.22 m f), a brightness signal which has 1 v p-p of video part is input to the y input pin (pin 16). ? color difference input signal after coupling by a capacitor (0.22 m f), 1 v p-p r-y and b-y signals are input to the r-y and b-y input pins (pins 18 and 19). (2) y, r-y and b-y input clamp circuit clamps y, r-y and b-y signals when the voltage of the clamp pulse input pin (pin 22) is 2.8 v or higher. input a clamp pulse to the clamp pulse input pin (pin 22) in synchronization with the burst section of an input signal as shown in figure 5-3. in the application circuit example, adjust the position of the clamp pulse by delay ( m pd4538b external variable resistor: 10 k w ) and the clamp pulse width by pd ( m pd4538b external variable resistor: 10 k w ). figure 5-3. 22-pin input clamp pulse waveform (3) amplification color control circuit adjusts the amplitude of a color difference signal input to the r-y input pin (pin 18) and b-y input pin (pin 19) according to the voltage of the color control pin (pin 20). this controls the color density on the screen. when using a matrix, adjust the color density mainly using this color control and fix the voltage of the subcolor control pin (pin 37) at 2 v (typ.). the control characteristic is shown in figure 5-4. video signal composite video input 22-pin input clamp pulse burst signal clamp operates at 2.8 v or higher.
m pc1830 17 figure 5-4. color control characteristic (a) ntsc mode (b) pal mode (4) tint control circuit controls the phase of a color difference signal whose amplitude is adjusted by the color control circuit, in a range of 45 according to the voltage of the tint control pin (pin 21), and adjusts tint on the screen. table 5-2 shows the demodulation angle and demodulation ratio in each mode and figure 5-5 shows the control characteristic. table 5-2. demodulation angle and demodulation ratio when tint control pin (pin 21) voltage = 2 v (typ.) mode demodulation angle ( e r-y) demodulation ratio (r-y/b-y) ntsc 105 (typ.) 0.75 (typ.) pal 90 (typ.) 0.61 (typ.) figure 5-5. tint control characteristic (a) ntsc mode (b) pal mode 0.8 0.1 0 12345 0.2 0.3 0.4 0.5 0.6 0.7 b output voltage (v p-p ) color control pin voltage (v) v cc = 5 v 400 mv p-p stair step b-y input tint control pin voltage: 2 v 0.9 1.0 0.8 0.1 0 12345 0.2 0.3 0.4 0.5 0.6 0.7 b output voltage (v p-p ) color control pin voltage (v) v cc = 5 v 400 mv p-p stair step b-y input tint control pin voltage: 2 v 0.9 1.0 +90 _ 90 0 12345 _ 45 0 +45 b demodulation angle (deg) tint control pin voltage (v) 400 mv p-p stair step r-y, b-y input tint control pin voltage: max. v cc = 5 v +90 _ 90 0 12345 _ 45 0 +45 tint control pin voltage (v) b demodulation angle (deg) 400 mv p-p stair step r-y, b-y input tint control pin voltage: max. v cc = 5 v
m pc1830 18 (5) g-y demodulation circuit demodulates g-y using (r-y), (b-y) which is color difference signal after tint adjustment and the following expression. g-y demodulation expression: (g-y) = C0.51 (r-y) C 0.19 (b-y) (6) rgb matrix circuit adds a brightness signal: y to each of (r-y), (b-y) and g-y to create r, g, and b signals. 5.4 synchronizing signal processing section (1) input signal a composite video signal or brightness signal is input to the synchronizing separate input pin (pin 39) at 1 v p-p . (2) sync. separation circuit separates the sync. signal from a composite video signal. the slice level can be changed using an external resistor: r x (see figure 5-6, typ. = 220 w ). the operation of the m pc1830 sync. separation circuit is explained below. figure 5-6 is an equivalent circuit diagram of the m pc1830 sync. separation circuit. figure 5-6. m pc1830 sync. separate input section equivalent circuit in figure 5-6, the slice level of sync. separation is determined as follows: when a negative sync. video signal is input, charge current i sp flows from the m pc1830 to c o so that the synchronization peak (minimum potential) becomes approximately 2.5 v. the voltage of the sync. separate input pin (pin 39) becomes 2.5 v or higher during a period other than the synchronization peak (minimum potential), thus cutting off transistor tr1 (reducing the collector current of tr1). consequently, a charge in c o is discharged via r o and r x by current i x during this cut-off period. figure 5-7 illustrates this situation. approx. 2.5 v (when v cc = 5 v) v cc v cc 5 k w 16 k w 100 w 167 w 5 k w 5 k w 39 ro rx 1.8 k w co a733 ix isp v cc + tr1
m pc1830 19 figure 5-7. sync. separation waveform v s in figure 5-7 represents the slice voltage and can be expressed in the following expression if it is assumed that c o is sufficiently large, and both i x and i sp are linear. v s = 2.5 (r x /r o ) (t2/t1) [v] the m pc1830 amplifies the part lower than this slice voltage (v s ) to perform sync. separation. to determine sync. separation sensitivity, change r x to set v s . decreasing v s is advantageous for separation of the horizontal sync. part, but disadvantageous for separation of the vertical sync. part. on the contrary, increasing v s may cause a sync. failure (jitter) due to noise (spikes) of the horizontal sync. part. therefore, it is necessary to optimize the constant in accordance with a signal input. as capacitance c o , select a sufficiently large value compared with the charge/discharge current. however, an excessive value may deteriorate the excessive response characteristic, failing to catch up with drastic apl variations of the input signal. the larger r x , the larger the slice level becomes. however, with large r x if the sync. signal level drops (weak electric field signal, etc.) a video signal may be confused with a sync. signal and sliced, making synchronization unstable (abnormal). caution since the measuring circuit uses capacitor coupling for input for ease of measurement, it is susceptible to apl variations. therefore, when configuring the actual circuit, use a sync tip clamp circuit in the stage prior to inputting to the emitter follower to stabilize the synchronization peak potential and this will make the circuit more resistant to apl variations. (3) vertical filter circuit separates the vertical sync. signal from the sync. signal separated by the sync. separation circuit. (4) horizontal sync. detection circuit detects the presence of a horizontal sync. signal and changes the afc time constant. (5) afc detection circuit performs phase detection on an input sync. signal and f h and outputs the phase difference in voltage. stops phase detection for 9h of the vertical blanking period. (6) 32f h vco controls vco according to the voltage output by the afc detection circuit and generates 32f h oscillation clocks. t1 (4.7 s) t2 (58.86 s) discharge by i x charge by i sp v s m m
m pc1830 20 (7) horizontal/vertical counter circuit ? horizontal counter circuit divides a 32f h signal to generate horizontal timing signals such as hd and blk signals. ? 525/625 counter circuit performs counting at 4f h and generates a vertical timing signal. generates vd in 0.75h delay from the falling edge of a vertical sync. signal in an odd field and in 0.75h delay from the falling edge of a vertical sync. signal in an even field.
m pc1830 21 6. electrical specifications absolute maximum ratings (t a = +25 c unless otherwise specified) parameter symbol ratings unit power supply voltage v cc 7.0 v video input signal voltage v iy v cc v chroma input signal voltage v ic v cc v synchronous separation input signal voltage v is v cc v control signal voltage v icnt v cc v permissible package power dissipation p d 500 (on board, t a = +75 c) mw operating ambient temperature t a C20 to +75 c storage temperature t stg C40 to +125 c caution even if one of the parameters exceeds its absolute maximum rating even momentarily, the quality of the product may be degraded. the absolute maximum rating therefore specifies the upper or lower limit of the value at which the product can be used without physical damages. be sure not to exceed or fall below this values when using the product. recommended operating conditions parameter symbol conditions min. typ. max. unit power supply voltage v cc 4.5 5.0 5.5 v composite video input voltage v yc 1.0 v p-p separate chroma input signal v c 150 mv p-p voltage synchronous separation input v s 1.0 v p-p signal voltage control signal voltage v cont 0v cc v color difference input voltage v r-y 1.0 v p-p v b-y
m pc1830 22 electrical specifications (t a = +25 3 ?c, v cc = +5 v unless otherwise specified) video signal processing section input signal C stair step 1 (400 mv p-p ) stair step 1 (400 mv p-p ) sync. signal (300 mv p-p ) only sine wave 1 (400 mv p-p ) sync. signal (300 mv p-p ) only sync. signal ( 300 m v p-p ) only stair step 1 (400 mv p-p ) sine wave 1 (400 mv p-p ) composite f sc pal or min. typ. max. unit /separate (mhz) ntsc C C C 507090ma both 3.58/ C 10.0 12.0 14.0 db 4.43 both 3.58/ C 30 C C db 4.43 both 3.58/ C C 0 400 mv 4.43 composite 4.43 C C4 C2 0 db 3.58 C C5 C3 0 db separate 4.43 C 0 +2 +4 db 3.58 C C1 +1 +3 db both 3.58/ C 2.1 2.5 3.0 v 4.43 C 1.7 2.0 2.4 v both 3.58/ C C 0 100 mv 4.43 C C C C0.5 0.0 +0.5 db composite 3.58/ C C20 C C db 4.43 parameter power supply current video voltage gain contrast variable range video output dc voltage fluctuation when contrast is variable video frequency characteristics video input dc voltage video output dc voltage video output dc power supply voltage fluctuation video output gain power supply voltage fluctuation trap attenuation amount conditions with no input signal contrast = max. max./min. contrast ratio output dc fluctuation, contrast = max./min. 200 khz/1.8 mhz gain difference, contrast = max. 200 khz/5.5 mhz gain difference, contrast = max. dc voltage of pin 36 scan period voltage of pin 12 contrast = max. e yo change when v cc changes from 4.5 to 5.5 v contrast = max. video voltage gain change when v cc changes from 4.5 to 5.5 v, contrast = max. gain difference of 200 khz/3.58 mhz and 200 khz/4.43 mhz contrast = max. symbol i cc a v(comp) e vc d e oyc f v1 f v2 f v3 f v4 e yi e yo d e yov d a vv d d t remark for the input signal, see measuring input signal .
m pc1830 23 input signal burst 600 mv p-p burst 30 mv p-p burst 600 mv p-p burst 30 mv p-p burst 300 mv p-p burst 15 mv p-p burst 300 mv p-p burst 15 mv p-p color bar 1 color bar 1 C C color bar 1 color bar 1 color bar 1 C composite f sc pal or min. typ. max. unit /separate (mhz) ntsc composite 4.43 C C2.0 0.0 +2.0 db C C7.0 C3.0 +1.0 db 3.58 C C2.0 0.0 +2.0 db C C7.0 C3.0 +1.0 db separate 4.43 C C2.0 0.0 +2.0 db C C7.0 C3.0 +1.0 db 3.58 C C2.0 0.0 +2.0 db C C7.0 C3.0 +1.0 db composite 4.43 pal C48 C40 C32 db 3.58 ntsc C48 C40 C32 db separate 4.43 pal C48 C40 C32 db 3.58 ntsc C48 C40 C32 db C CC0C50mv p-p C C C 3.9 4.05 v C C C 0.5 0.6 v composite 4.43 C 30 45 C db composite 4.43 C 0 C 50 mv p-p composite 4.43 pal 400 600 C hz 3.58 ntsc 400 600 C hz separate 4.43 pal 400 600 C hz 3.58 ntsc 400 600 C hz C 4.43 C 1.0 1.2 1.4 hz/mv 3.58 C 1.0 1.2 1.4 hz/mv parameter a cc amplitude characteristics color killer setting point color killer color remainder color killer output, high color killer output, low subcolor control variable range subcolor control color remainder apc pull-in range vco control sensitivity conditions b-y output level fluctuation. with reference to burst 300 mv p-p . level at which killer output goes high with burst signal 300 mv p-p set to 0 db. level at which killer output goes high with burst signal 150 mv p-p set to 0 db. b-y output remaining level when killer output is high. color killer output level when color killer is on, i oh = C200 m a. color killer output level when color killer is off, i ol = +200 m a. b-y output level ratio of max./min. subcolor. b-y output remaining subcolor difference level, color = min. apc pull-in frequency range when burst chroma frequency changes. (f sc = reference) calculate from oscillation freq. when apc filter pin voltage is 2.3/2.7 v. symbol a cc1 a cc2 a cc3 a cc4 a cc5 a cc6 a cc7 a cc8 e kpc e kps e ok e ckh e ckl e cc e oc f sp b s (1/3) color bar 2 b-y output level fluctuation. with reference to burst 300 mv p-p . remark for the input signal, see measuring input signal . chroma section
m pc1830 24 parameter conditions symbol vco free-running frequency pal mode demodu- lation ratio ntsc mode demodulation ratio pal mode demodulation angle ntsc mode demodulation angle maximum color difference output color difference output remaining carrier level color difference output remaining harmonic level color difference output frequency characteristics blanking stage difference line fluctuation color difference output pin voltage color difference output pin voltage fluctuation with power supply fluctuation f s r-y b-y dp r-y b-y dn e r-y dp e r-y dn e bym e car e har f cp f cs e blk d e ory e ory e oby d e oryv d e obyv vco oscillator freq. r-y/b-y output ratio r-y demodulation angle subcolor = max. r-y, b-y output remaining carrier level output remaining harmonic level, r-y, b-y = 1 v p-p d f = 50/500 khz r-y, b-y output level ratio d f = 50 khz/1 mhz r-y, b-y output level ratio subcolor = max. r-y/b-y output blank period/scan period dc voltage difference subcolor = max. scan period dc voltage difference at every horizontal scanning period of r-y output r-y output dc voltage, with no signal b-y output dc voltage, with no signal e ory change when v cc changes from 4.5 to 5.5 v e oby change when v cc changes from 4.5 to 5.5 v C 4.43 C 400 C C hz 3.58 C 400 C C hz composite 4.43 pal 0.9 1.0 1.1 times 3.58 ntsc 0.9 1.0 1.1 times composite 4.43 pal 85 90 95 deg 3.58 ntsc 85 90 95 deg composite 4.43 C 1.3 1.6 1.9 v p-p C 3.58 ntsc 0 C 100 mv p-p C 3.58 ntsc 0 C 100 mv p-p composite 4.43 pal C5 C3 0 db 3.58 ntsc separate 4.43 pal C5 C3 0 db 3.58 ntsc C 4.43 pal C 0 20 mv C 4.43 pal C 0 20 mv C 4.43 pal 2.2 2.5 3.0 v C 4.43 pal 0 100 mv 0 100 mv composite f sc pal or min. typ. max. unit /separate (mhz) ntsc sync. signal (300 mv p-p ) only rainbow color bar (300 mv p-p ) rainbow color bar (300 mv p-p ) rainbow color bar (300 mv p-p ) C color bar 1 since wave 2 (400 mv p-p ) burst (300 mv p-p ) only burst (300 mv p-p ) only C C input signal (2/3) remark for the input signal, see measuring input signal .
m pc1830 25 conditions symbol composite f sc pal or min. typ. max. unit /separate (mhz) ntsc input signal dc voltage of pin 34 calculate from input when eic ? eic + 2 v voltage of pin 34 at which separate/ composite mode is changed C C C separate C C 1.2 1.5 1.8 v separate C C 26 35 44 k w C 3.58 ntsc 3.1 3.4 3.7 v (3/3) parameter separate chroma input pin voltage separate chroma input resistance separate/composite change threshold voltage e ic r ic e icth remark for the input signal, see measuring input signal .
m pc1830 26 conditions symbol sync. separation input dc voltage h sync. pull-in range horizontal vco control sensitivity horizontal vco free-running freq. horizontal vco free-running freq. fluctuation with power supply voltage fluctuation hd pulse output, high hd pulse output, low hd pulse output width blanking pulse output, high blanking pulse output, low blanking pulse output, width vertical free-running frequency (in 50-hz mode) C C C 2.25 2.55 2.85 v CCC 400 C C hz C C C 1.2 1.5 1.9 hz/mv C C C C200 0 +200 hz CCC 0 50 hz C C C 3.9 4.05 C v C C C C 0.5 0.6 v C C C 3.9 4.4 4.9 m s C C C 3.9 4.05 C v C C C C 0.5 0.6 v C C C 9.9 10.4 10.9 m s C CCCf h /368 C hz C CCCf h /352 C hz C CCCf h /272 C hz C CCCf h /288 C hz composite f sc pal or min. typ. max. unit /separate (mhz) ntsc C sync. signal (300 mv p-p ) only _ C C sync. signal (300 mv p-p ) only sync. signal (300 mv p-p ) only sync. signal (300 mv p-p ) only sync. signal (300 mv p-p ) only sync. signal (300 mv p-p ) only sync. signal (300 mv p-p ) only sync. separate input of 3.5 v sync. separate input of C1 ma input signal (1/2) sync. separation input dc voltage at no signal frequencies at which horizontal afc can be pulled, h sync width = 4.8 m s calculated from hd output frequency change when horizontal afc filter pin voltage changes from 2.9 to 3.4 v, with no signal difference for 15.680 khz of hd output frequency, with no signal change of f h when v cc changes from 4.5 to 5.5 v i oh = C200 m a i ol = +200 m a when hd pulse rising, falling is 2.5 v i oh = C200 m a i ol = +200 m a when blanking pulse rising, falling is 2.5 v h sync. detect filter pin voltage = 0 v h sync. detect filter pin voltage = 5 v h sync. detect filter pin voltage = 0 v h sync. detect filter pin voltage = 5 v e is f hp b h f h d f hv e hdh e hdl t whd e blh e bll t wbl f v1 f v2 f v3 f v4 synchronous section parameter remark for the input signal, see measuring input signal .
m pc1830 27 (2/2) vertical free-running frequency (in 60-hz mode) vd pulse output, high vd pulse output, low even field vd pulse output width odd field vd pulse output width f v5 f v6 f v7 f v8 e vdh e vdl t wvde t wvdo h sync. detect filter pin voltage = 0 v h sync. detect filter pin voltage = 5 v h sync. detect filter pin voltage = 0 v h sync. detect filter pin voltage = 5 v i oh = C200 m a i ol = +200 m a sync. separate input of 3.5 v sync. separate input of C1 ma sync. signal of 300 mv p-p sync. signal of 300 mv p-p C CCCf h /296 C hz C CCCf h /288 C hz C CCCf h /232 C hz C CCCf h /240 C hz C C C 3.9 4.05 C v C C C C 0.5 0.6 v C CCC5.5Ch C CCC6.0Ch conditions symbol composite f sc pal or min. typ. max. unit /separate (mhz) ntsc input signal parameter remark for the input signal, see measuring input signal .
m pc1830 28 mode control section ntsc/pal mode switch threshold voltage ntsc/pal mode switch input pin current subcarrier frequency switch threshold voltage subcarrier frequency switch input pin current vertical frequency switch threshold voltage vertical frequency switch input pin current e pn1 e pn2 i ipn e sc i isc e fv i ifv voltage of pin 42 at which both decoder and matrix changes to ntsc or pal mode simultaneously. voltage of pin 42 at which only matrix changes to ntsc or pal mode and decoder remains in ntsc mode. input current of pin 42. voltage of pin 41 at which f sc 3.58/4.43 mode is changed. input current of pin 41. voltage of pin 6 at which f v 50/60 mode is changed. input current of pin 6. C C C C C C C C C C 1.37 1.67 1.97 v C C C 3.03 3.33 3.63 v C C C C0.5 +0.2 +2.0 m a C C C 2.2 2.5 2.8 v C C C C2.0 C0.2 +0.5 m a C C C 2.2 2.5 2.8 v C C C C2.0 C0.2 +0.5 m a ntsc/pal mode setting sw setting of pin 42 voltage of pin 42 decoder mode matrix mode mode 1 lower than e pn1 pal pal mode 2 between e pn1 and e pn2 ntsc ntsc mode 3 higher than e pn2 ntsc pal vertical frequency (f v ) switching voltage of pin 6 vertical frequency fv lower than e fv 50 hz higher than e fv 60 hz subcarrier frequency (f sc ) switching voltage of pin 41 subcarrier frequency f sc lower than e sc 4.43 mhz higher than e sc 3.58 mhz conditions symbol composite f sc pal or min. typ. max. unit /separate (mhz) ntsc input signal parameter
m pc1830 29 a y d a yrgb d a yv f y a b e cm e ocm d a bv f b e tmax. e tmin. y:stair step 2 (1 v p-p ) y:stair step 2 (1 v p-p ) y:stair step 2 (1 v p-p ) sine wave 4 (1 v p-p ) b-y: stair step 1 (400 mv p-p ) b-y: stair step 1 (400 mv p-p ) b-y: stair step 1 (400 mv p-p ) b-y: stair step 1 (400 mv p-p ) b-y: sine wave 3 (400 mv p-p ) stair step 1 (400 mv p-p ) original color output y voltage gain y voltage gain rgb output mutual difference y voltage gain fluctuation with power supply voltage fluctuation y frequency characteristics b output color difference voltage gain color control variable range color control color remainder color difference voltage gain fluctuation with power supply voltage fluctuation color difference freq. characteristics tint control variable range b output voltage gain. mutual difference of r, g, and b output voltage gains. difference between b output voltage gain and a y under the same conditions as a y except that v cc = 4.5 v, 5.5 v. 200 khz/6 mhz b output gain difference. b output voltage gain. tint control voltage 2.0 v, color = max. difference between b output gain and a b . tint control voltage 2.0 v, color = min. b output remaining color difference level. tint control voltage 2.0 v, color = min. difference between each b output voltage gain and a b under the same condition as a b except that v cc is changed from 4.5 to 5.5 v b output gain difference when freq. changes from 200 khz to 6 mhz. tint control voltage 2.0 v, color = max. see note . color = max. C C C C2.0 0.0 +2.0 db C C C C1.0 0.0 +1.0 db C C C C0.5 0.0 +0.5 db C C C 0 C3 C5 db C C C 4.0 6.0 8.0 db CCC3545Cdb C CC0550mv p-p C C C C0.5 0.0 +0.5 db C C C 0 C3 C5 db C C pal/ +35 C C deg ntsc C C C35 deg conditions symbol composite f sc pal or min. typ. max. unit /separate (mhz) ntsc input signal parameter note b demodulation angle f b is obtained from b output signal voltages using the following expressions: b demodulation angle f b = tan C1 b 1 b 2 where, b 1 : b output signal voltage when signal is input only to r-y b 2 : b output signal voltage when signal is input only to b-y, e tmax . and e tmin . are obtained from the f b values using the following expressions: e tmax . = f b(4) C f b(2) , e tmin . = f b(2) C f b(10) where, f b(0) , f b(2) , f b(4) : f b values when tint control voltage is 0, 2, 4 v, respectively. remark for the input signal, see measuring input signal . matrix section (1/2)
m pc1830 30 (2/2) C C pal 0.50 0.56 0.62 times 0.31 0.35 0.39 times 85 90 95 deg 228 237 246 deg ntsc 0.69 0.75 0.83 times 0.22 0.25 0.28 times 100 105 110 deg 238 247 256 deg C C C 2.1 2.5 2.9 v C C C 2.1 2.5 2.9 v C C C 2.1 2.5 2.9 v C C C 1.6 2.0 2.4 v C C C 1.6 2.0 2.4 v C C C 1.6 2.0 2.4 v C C C 300 mv C CCC0 300 mv C CCC0 300 mv C CCC0 300 mv C CCC0 300 mv C C C 1.6 2.0 2.4 v stair step 1 (400 mv p-p ) C C C C C C C C C C C C tint control = 2 v, color = max. see note1 . note 2 maximum value of difference voltages between e ro , e go , and e bo maximum value of e ro , e go , e bo fluctuation color control = max./min. tint control = 2.0 v maximum value of e ro , e go , e bo fluctuation tint control = max./typ./min. color control = max. color control = max./min. tint control = 2.0 v tint control = max./typ./min. color control = max. r-y b-y p g-y b-y p e r-y mp e g-y mp r-y b-y mn g-y b-y mn e r-y mn e g-y mn e clp e ryi e byi e ro e go e bo d e x-y d e rgbc d e rgbt d e yic d e yit e yi conditions symbol composite f sc pal or min. typ. max. unit /separate (mhz) ntsc input signal parameter pal mode demodulation ratio pal mode demodulation angle ntsc mode demodulation ratio ntsc mode demodulation angle clamp pulse input threshold voltage r-y input pin voltage b-y input pin voltage r output pin voltage g output pin voltage b output pin voltage dc difference voltage between r, g, b outputs rgb output dc fluctuation in color control mode rgb output dc fluctuation in tint control mode y input dc fluctuation in color control mode y input dc fluctuation in tint control mode y input pin voltage notes 1. from r, g and b output voltages r1, g1 and b1 when signal is input only to r-y and r, g, and b output voltages r2, g2 and b2 when signal is input only to b-y, r, g, b demodulation ratio and demodulation angles are obtained by the following expressions: 2. clamp pulse input voltage which gets 80 m a or more at y input pin voltage = v cc . remark for the input signal, see measuring input signal . ? ? ? r C y = r 1 2 + r 2 2 g C y = g 1 2 + g 2 2 b C y b 1 2 + b 2 2 ,b C y b 1 2 + b 2 2 e r C y = Ctan C1 r 2 C tan C1 b 1 + 90 r 1 b 2 e g C y = Ctan C1 g 1 C 3g 2 Cta nC1 b 1 + 240 3g 1 + g 2 b 2 ?
m pc1830 31 measuring input signal ? stair step 1 400 mv p-p 21 v p-p ? sine wave 1 400 mv p-p 2 400 mv p-p ? sync. signal (300 mv p-p ) only 3 400 mv p-p 4 1 v p-p 400 mv p-p 300 mv p-p 300 mv p-p 300 mv p-p 1 v p-p 400 mv p-p 1 v p-p 400 mv p-p 400 mv p-p sine wave mono tone sine wave mono tone sine wave mono tone sine wave mono tone
m pc1830 32 ? color bar 1 2 variable burst or chroma signal amplitude ? rainbow color bar (300 mv p-p ) ? burst (300 mv p-p ) only 1 v p-p 300 mv p-p 1 v p-p rainbow chroma signal 300 mv p-p variable burst or chroma signal amplitude
m pc1830 33 timing chart (horizontal period) composite video input h sync. output (hd) blanking output (blk) burst signal 4 s 10 s m m 1 s m
m pc1830 34 timing chart (vertical period/standard signal input) remark h represents horizontal scanning period. odd field even field composite video input h sync. output (hd) blanking output (blk) v sync. output (vd) composite video input h sync. output (hd) blanking output (blk) v sync. output (vd) 0.75h 0.75h 1.25h 5.5h 6h
m pc1830 35 7. application circuit example example 1 vcc 0.22 f c945 470 f 68 w bnc b-out vcc 0.22 f c945 68 w bnc g-out + + vcc 0.22 f c945 68 w bnc r-out + 16 15 14 13 12 11 10 9 12345678 pd4538b delay 10 k w pd 10 k w 5.1 k w 22 f 0.1 f 470 pf 0.22 f 15 pf 15 pf 4.43 mhz 3.58 mhz 470 w 2.4 k w 910 k w note 1 + 0.1 f 15 k w 0.01 f 680 k w 4.7 f + 1 f vcc 22 f 0.1 f 1000 pf c945 v cc v cc + 2.2 f 0.1 f + 1 f 43 k w subcolor control contrast control 1 k w 220 pf v cc 1.8 k w a733 150 w 75 w 10 k w 22 k w 0.01 f c945 1 k w v cc 75 w 18 k w 27 k w c945 1 k w v cc bnc sep-c-in 100 f + v cc 20 k w 20 k w mode 1 mode 3 mode 2 4.43 mhz 3.58 mhz v cc v cc 50 hz 60 hz fv v cc comp sep-sw sep + 2.2 k w 390 pf 330 w 4700 pf 4.3 k w 2.2 f 2.7 k w 500 khz + v cc 22 f 0.1 f killer detect blk hd vd + v cc 0.22 f 0.22 f 0.22 f 0.1 f 0.1 f 0.1 f 20 k w color control tint control 20 k w 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 mode switch sync. separate v filter h sync. detect h/v count 32 f h vco afc wave detect clamp chroma trap separate/composite switch separate/composite switch, a cc amp. subcolor control delay hd, vd, blanking pulse, killer output buffer chroma bpf contrast control lpf y, r-y, b-y output buffer r-y, b-y modulate filter f 0 adjust 3.58 mhz/4.43 mhz vcxo, pal sw apc, killer detect, ident detect rgb output buffer ntsc/pal matrix tint contro l amp. color control y, r-y, b-y input clamp v cc 180 pf 22 f note 2 fsc 75 w 20 k w 0.22 f + vcc 180 k w 220 w bnc y-in 820 w 470 f 470 f 10 k w 20 k w m m m m m m m m m 5.1 k w m m m m m m m m 270 pf m m m m m m m m m m m m m m m notes 1. crystal resonator for load of 16 pf. 4.433 619 mhz (pal) : daishinku corp. (type: hc-49/u) 3.579 545 mhz (ntsc) : toyo communication equipment co., ltd. (type: tqc203a-8r) 2. csb500f23: murata mfg. co.,ltd. + f sc r bg r-y b-y g-y b-y r-y b-y r-y y b-y r-y y y c f sc c r-y b-y killer v h blk h v 0.1 f m
m pc1830 36 example 2 (for ntsc limited use) vcc 0.22 f c945 470 f 68 w bnc b-out vcc 0.22 f c945 68 w bnc g-out + + vcc 0.22 f c945 68 w bnc r-out + 16 15 14 13 12 11 10 9 12345678 pd4538b delay 10 k w pd 10 k w 5.1 k w 22 f 0.1 f 470 pf 0.22 f 15 pf 3.58 mhz nc 2.4 k w 910 k w note 1 + 0.1 f 15 k w 0.01 f 680 k w 4.7 f + 1 f vcc 22 f 0.1 f 1000 pf c945 v cc v cc + 2.2 f 0.1 f + 1 f 43 k w subcolor control contrast control 1 k w 220 pf v cc 1.8 k w a733 150 w 75 w 10 k w 22 k w 0.01 f c945 1 k w v cc 75 w 18 k w 27 k w c945 1 k w v cc bnc sep-c-in 100 f + v cc 20 k w 20 k w v cc v cc comp sep-sw sep + 2.2 k w 390 pf 330 w 4700 pf 4.3 k w 2.2 f 2.7 k w 500 khz + v cc 22 f 0.1 f killer detect blk hd vd + v cc 0.22 f 0.22 f 0.22 f 0.1 f 0.1 f 0.1 f 20 k w color control tint control 20 k w 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 mode switch sync. separate v filter h sync. detect h/v count 32 f h vco afc wave detect clamp chroma trap separate/composite switch separate/composite switch, a cc amp. subcolor control delay hd, vd, blanking pulse, killer output buffer chroma bpf contrast control lpf y, r-y, b-y output buffer r-y, b-y modulate filter f 0 adjust 3.58 mhz/4.43 mhz vcxo, pal sw apc, killer detect, ident detect rgb output buffer ntsc/pal matrix tint contro l amp. color control y, r-y, b-y input clamp v cc 180 pf 22 f note 2 75 w 20 k w 0.22 f + vcc 180 k w 220 w bnc y-in 470 f 470 f 10 k w 20 k w m m m m m m m m m 5.1 k w m m m m m m m m 270 pf m m m m m m m m m m m m m m m notes 1. crystal resonator for load of 16 pf. 3.579 545 mhz (ntsc) : toyo communication equipment co., ltd. (type: tqc203a-8r) 2. csb500f23: murata mfg. co.,ltd. + f sc f sc c r-y b-y killer r-y b-y y y v h blk v h c r bg r-y b-y g-y r-y b-y r-y b-y y 0.1 f m
m pc1830 37 example 3 (for pal limited use) vcc 0.22 f c945 470 f 68 w bnc b-out vcc 0.22 f c945 68 w bnc g-out + + vcc 0.22 f c945 68 w bnc r-out + 16 15 14 13 12 11 10 9 12345678 pd4538b delay 10 k w pd 10 k w 5.1 k w 22 f 0.1 f 470 pf 0.22 f 15 pf 4.43 mhz 470 w nc 910 k w note 1 + 0.1 f 15 k w 0.01 f 680 k w 4.7 f + 1 f vcc 22 f 0.1 f 1000 pf c945 v cc v cc + 2.2 f 0.1 f + 1 f 43 k w subcolor control contrast control 1 k w 220 pf v cc 1.8 k w a733 150 w 75 w 10 k w 22 k w 0.01 f c945 1 k w v cc 75 w 18 k w 27 k w c945 1 k w v cc bnc sep-c-in 100 f + v cc comp sep-sw sep + 2.2 k w 390 pf 330 w 4700 pf 4.3 k w 2.2 f 2.7 k w 500 khz + v cc 22 f 0.1 f killer detect blk hd vd + v cc 0.22 f 0.22 f 0.22 f 0.1 f 0.1 f 0.1 f 20 k w color control tint control 20 k w 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 mode switch sync. separate v filter h sync. detect h/v count 32 f h vco afc wave detect clamp chroma trap separate/composite switch separate/composite switch, a cc amp. subcolor control delay hd, vd, blanking pulse, killer output buffer chroma bpf contrast control lpf y, r-y, b-y output buffer r-y, b-y modulate filter f 0 adjust 3.58 mhz/4.43 mhz vcxo, pal sw apc, killer detect, ident detect rgb output buffer ntsc/pal matrix tint contro l amp. color control y, r-y, b-y input clamp v cc 180 pf 22 f note 2 75 w 20 k w 0.22 f + vcc 180 k w 220 w bnc y-in 820 w 470 f 470 f 10 k w 20 k w m m m m m m m m m 5.1 k w m m m m m m m m 270 pf m m m m m m m m m m m m m m m notes 1. crystal resonator for load of 16 pf. 4.433 619 mhz (pal) : daishinku corp. (type: hc-49/u) 2. csb500f23: murata mfg. co.,ltd. + y r-y b-y r-y b-y killer f sc c f sc r-y b-y g-y r-y b-y r-y b-y r b g v h blk y y h v c 0.1 f m
m pc1830 38 example 4 (when rgb matrix section not used) 0.22 f 15 pf 15 pf 4.43 mhz 3.58 mhz 470 w 2.4 k w 910 k w note 1 + 0.1 f 15 k w 0.01 f 680 k w 4.7 f + 1 f vcc 22 f 0.1 f 1000 pf c945 v cc v cc + 2.2 f 0.1 f + 1 f 43 k w subcolor control contrast control 1 k w 220 pf v cc 1.8 k w a733 150 w 75 w 10 k w 22 k w 0.01 f c945 1 k w v cc 75 w 18 k w 27 k w c945 1 k w v cc bnc sep-c-in 100 f + v cc 20 k w 20 k w mode 1 mode 3 mode 2 4.43 mhz 3.58 mhz v cc v cc 50 hz 60 hz fv v cc comp sep-sw sep + 2.2 k w 390 pf 330 w 4700 pf 4.3 k w 2.2 f 2.7 k w 500 khz + v cc 22 f 0.1 f killer detect blk hd vd + v cc 0.1 f 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 mode switch sync. separate v filter h sync. detect h/v count 32 f h vco afc wave detect clamp chroma trap separate/composite switch separate/composite switch, a cc amp. subcolor control delay hd, vd, blanking pulse, killer output buffer chroma bpf contrast control lpf y, r-y, b-y output buffer r-y, b-y modulate filter f 0 adjust 3.58 mhz/4.43 mhz vcxo, pal sw apc, killer detect, ident detect rgb output buffer ntsc/pal matrix tint contro l amp. color control y, r-y, b-y input clamp 22 f note 2 fsc 75 w 20 k w 0.22 f + vcc 180 k w 220 w bnc y-in 820 w 10 k w 20 k w m m m 270 pf m m m m m m m m m m m m m m m notes 1. crystal resonator for load of 16 pf. 4.433 619 mhz (pal) : daishinku corp. (type: hc-49/u) 3.579 545 mhz (ntsc) : toyo communication equipment co., ltd. (type: tqc203a-8r) 2. csb500f23: murata mfg. co.,ltd. nc y r-y b-y rbg r-y b-y g-y r-y b-y r-y b-y y f sc f sc c r-y b-y killer y v h blk h v c r-y y b-y 0.1 f m
m pc1830 39 8. operating precautions 8.1 m pc1830 external components (1) resistors use e24 series resistors (approximately 5% precision) of 1/4 w or higher. (2) capacitors ? ceramic capacitors of 1000 pf or below capacitors used for the time constant circuit. basically use e12 series (10% precision) ones with the center value = 0 in nominal temperature characteristic. ? ceramic capacitors of 1000 pf or higher equivalent to capacitors for non-critical time constant circuits and for clamp, and bypass capacitors between power supply and gnd. use e12 series (10% precision) ones. use a type whose capacitance is not extremely affected by temperature variations (ie. with an excellent temperature characteristic). ? electrolytic capacitors use e6 series (20% precision) ones. use ones whose capacitance is not extremely affected by temperature variations (ie. with an excellent temperature characteristic). (3) crystal resonators use crystal resonators of 16 pf load type as shown below. ? for pal : 4.433 619 mhz (model name: hc-49/u, manufactured by kinseki, ltd.) ? for ntsc : 3.579 545 mhz (model name: tqc203a-8r (hc-49/u-10 type), manufactured by toyo communication equipment co., ltd.) note that use of crystal resonators other than the above may deteriorate electrical characteristics. (4) ceramic resonators use ceramic resonators as shown below. ? csb500 f23 (manufactured by murata mfg. co., ltd.) note that use of ceramic resonators other than the above may deteriorate mainly electrical characteristics of the sync. section.
m pc1830 40 8.2 m pc1830 pattern wiring (1) gnd line solid grounding should be applied to three gnds: synchronous section gnd (pin 5), video section gnd (pin 15) and chroma section gnd (pin 33). they should not be connected to other digital gnds except the one point of origin. use thick connection (thick through hole) for each gnd pin of the ic. when an emitter follower circuit, amplifier, etc. is connected to the color difference output stage or rgb output stage, separate the solid ground of the output stage from that of the ic output stage. (2) power supply line the three analog power supplies, synchronous section power supply (pin 7), video section power supply (pin 17) and chroma section power supply (pin 35) should be independent of each other and unified at the supply source. ensure that there is no unnecessary routing. separate the digital section power supply from the analog section power supply and connect them only at one point. (3) signal line in order to avoid signal cross talk, ensure that the color difference signal line (pins 12, 13, and 14) and rgb signal line (pins 23, 24, and 25) are not placed close to or in parallel with the digital signal line or hd (pin 10), vd (pin 11) and blk (pin 9) lines, or cross those lines. (4) placement of peripheral components of each pin place components which are connected with pins 1, 2, 5, 7, 15, 16, 17, 18, 19, 23, 24, 25, 28, 29, 33, 34, and 35 close to the ic. when the placed components are connected to the power supply line or other lines, route low-impedance lines and make sure that the thickest possible lines are used for connection with the ic pins.
m pc1830 41 9. package drawing 42 pin plastic shrink sop (375 mil) 121 a 42 22 detail of lead end c m m n b d e f g i j h k l 3 +7 3 s42gt-80-375b-1 item millimeters inches a b c d f g h i j k l 18.16 max. 0.8 (t.p.) 2.9 max. 2.5 0.2 10.3 0.3 1.13 max. 0.715 max. 0.005 0.003 0.115 max. 0.406 0.281 0.044 max. note m n 0.10 0.8 0.2 1.6 0.2 7.15 0.2 0.004 0.031 +0.009 ?.008 each lead centerline is located within 0.10 mm (0.004 inch) of its true position (t.p.) at maximum material condition. 0.063 0.008 0.098 0.031 (t.p.) 0.15 0.006 0.10 0.004 0.014 0.35 0.125 0.075 +0.004 ?.002 +0.009 ?.008 +0.10 ?.05 +0.004 ?.003 e +0.012 ?.013 +0.009 ?.008 +0.10 ?.05
m pc1830 42 10. recommended soldering conditions when soldering this product, it is highly recommended to observe the conditions as shown below. if other soldering processes are used, or if the soldering is performed under different conditions, please make sure to consult with our sales offices. for more details, refer to our document semiconductor device mounting technology manual (c10535e) . surface mount device m pc1830gt: 42-pin plastic shrink sop (375 mil) process conditions symbol infrared ray reflow peak temperature: 235 c or below (package surface temperature), ir35-00-2 reflow time: 30 seconds or less (at 210 c or higher), maximum number of reflow processes: 2 times. vapor phase soldering peak temperature: 215 c or below (package surface temperature), vp15-00-2 reflow time: 40 seconds or less (at 200 c or higher), maximum number of reflow processes: 2 times. partial heating method pin temperature: 300 c or below, heat time: 3 seconds or less (per each side of the device). caution apply only one kind of soldering condition to a device, except for partial heating method, or the device will be damaged by heat stress.
m pc1830 43 [memo]
m pc1830 no part of this document may be copied or reproduced in any form or by any means without the prior written consent of nec corporation. nec corporation assumes no responsibility for any errors which may appear in this document. nec corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. no license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of nec corporation or others. while nec corporation has been making continuous effort to enhance the reliability of its semiconductor devices, the possibility of defects cannot be eliminated entirely. to minimize risks of damage or injury to persons or property arising from a defect in an nec semiconductor device, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features. nec devices are classified into the following three quality grades: "standard", "special", and "specific". the specific quality grade applies only to devices developed based on a customer designated "quality assurance program" for a specific application. the recommended applications of a device depend on its quality grade, as indicated below. customers must check the quality grade of each device before using it in a particular application. standard: computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots special: transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) specific: aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. the quality grade of nec devices is "standard" unless otherwise specified in nec's data sheets or data books. if customers intend to use nec devices for applications other than those specified for standard quality grade, they should contact an nec sales representative in advance. anti-radioactive design is not implemented in this product. m4 96.5 the application circuits and their parameters are for reference only and are not intended for use in actual design-ins. [memo]

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