www.fairchildsemi.com rev. 2 april 2004 features 7.1mhz y and c ?ters, with cv out 14db notch at 4.5mhz for sound trap 42db stopband attenuation at 27mhz on y, c, and cv better than 1db ?tness to 4.5 mhz on y, c, and cv rf modulator output differential group delay between 400khz and 3.58mhz is typically -170ns. no external frequency select components or clocks 9ns group delay ?tness on y, c, and cv output ? c coupled inputs and outputs 0.4% differential gain on y, c and cv channels, 0.4? differential phase on y, c and cv channels 0.8% total harmonic distortion on all channels dc restore with low tilt applications cable set-top boxes satellite set-top boxes ? vd players general description the ml6416 is a dual y/c 4th-order butterworth lowpass video ?ter optimized for minimum overshoot and ?t group delay. the device also contains a summing circuit to gener- ate ?tered composite video, an audio trap and group delay compensation circuit to notch-out audio, providing an area for the addition of the fm audio carrier(s) and mimic the group delay distortion introduced at the transmitter. the group delay predistortion compensates for the nominal tv receiver if ?ter distortion. in a typical application, the y and c input signals from da cs are ac coupled into the ?ter. both channels have dc restore circuitry to clamp the dc input levels during video sync. the y and c channels use a separate feedback clamp. the clamp pulse is derived from the y channel. the outputs are ac coupled. the y, c, cv, and modulator outputs can drive 2v p-p into a 150 ? load (1v p-p 75 ? coax load). the y, c, cv, and notch channels have a gain of approximately 2 (6db) with 1v p-p input levels. block diagram cin 4th ?order filter 4 gnd 3 yin vcc 1 7 yout 8 4th ?order filter + + notch, group delay sync strip, reference, and timing rf mod 2 cout 5 cvout 6 1v gm 1v gm 2 2 2 ml6416 s-video filter with summed composite output, sound trap, and group delay compensation
ml6416 product specification 2 rev. 2 april 2004 pin con?uration pin descriptions pin # signal name description 1 yin luminance input 2 rf mod output to rf modulator driver 3 gnd ground 4 cin chrominance input 5 cout chrominance output 6c v out composite video output 7 vcc 5v supply 8y out luminance output ml6416 8-pin soic (s08) 1 2 3 4 8 7 6 5 yin rf mod gnd cin yout vcc cvout cout top view functional description introduction this product is a dual monolithic continuous time video ?ter designed for reconstructing the luminance and chrominance signals from an s-video d/a source. composite video out- put is generated by summing the y and c outputs. the chip is intended for use in applications with ac coupled input and ac coupled outputs. (see figure 1) the reconstruction ?ters approximate a 4th-order butter- w orth characteristic with an optimization toward low over- shoot and ?t group delay. y, c, and cv outputs are capable of driving 2v p-p into ac coupled 150 ? video loads, with up to 35pf of load capacitance at the output pin. all channels are clamped during sync to establish the appro- priate output voltage swing range. thus the input coupling capacitors do not behave according to the conventional rc time constant. clamping for all channels settles to less than 10mv within 5ms of a change in video input sources. in most applications the input coupling capacitors are 0.1?. the y and c input typically sinks 1? during active video, which nominally tilts a horizontal line by about 2mv at the y output. during sync, the clamp typically sources 20? to restore the dc level. the net result is that the average input current is zero. any change in the input coupling capacitor s value will inversely alter the amount of tilt per line. such a change will also linearly affect the clamp response times. this product is robust and stable under all stated load and input conditions. capacitive bypassing vcc directly to ground ensures this performance. luminance (y) i/o the luma input is driven by either a low impedance source of 1v p-p or the output of a 75 ? terminated line. the input is required to be ac coupled via a 0.1? coupling capacitor which allows for a settling time of 5ms. the luma output is capable of driving an ac coupled 150 ? load at 2v p-p , or 1v p-p into a 75 ? load. up to 35pf of load capacitance (at the output pin) can be driven without stability or slew issues. the output is ac coupled with a 220? or larger ac coupling capacitor.
product specification ml6416 rev. 2 april 2004 3 chrominance (c) i/o the chroma input is driven by a low impedance source of 0.7v p-p or the output of a 75 ? terminated line. the input is required to be ac coupled via a 0.1? coupling capacitor which allows for a clamp setting time of 5ms. the chroma output is capable of driving an ac coupled 150 ? load at 2v p-p , or 1v p-p into a 75 ? load. up to 35pf of load capaci- tance can be driven without stability or slew issues. a 0.1? ac coupling capacitor is recommended at the output. (this reduces the circuit cost as chroma does not contain low frequency components.) composite video (cv) output the composite video output is capable of driving 2 loads to 2v p-p . it is intended to drive a tv and a vcr. either the tv input or the vcr input can be shorted to ground and the other output will still meet speci?ations. up to 35pf of load capacitance (at the output pin) can be driven without stability or slew issues. rf modulator output the rf modulator output is capable of driving a 600 ? load to 2v p-p , but is primarily intended to drive a modulator load. t ypical applications diagram figure 1. coupled s-video, composite video line driver, sound trap, and group delay pre-distortion 1 f 0.1 f 0.1 f 0.1 f 0.1 f 220 f 220 f video cables 75 ? 75 ? 75 ? 75 ? 75 ? 75 ? 75 ? y out to channel 3 or 4 4.5mhz fm sound to tv cvout to vcr cout yin cin 5.0v + + 4th-order filter 1 4 8 2 5 3 7 6 notch and group delay protection video modulator + encoder 4th-order filter 220 f 75 ?
ml6416 product specification 4 rev. 2 april 2004 absolute maximum ratings absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device operation is not implied. operating conditions p arameter min. max. units dc supply voltage ?.3 7 v analog & digital i/o gnd ?0.3 v cc + 0.3 v output current (continuous) cv channel c and y channels 60 30 ma ma junction temperature 150 ? storage temperature range ?5 150 ? lead temperature (soldering, 10s) 260 ? thermal resistance ( ja ) 115 ?/w p arameter min. max. units temperature range 0 70 c v cc range 4.5 5.5 v electrical characteristics unless otherwise speci?d, v cc = 5.0v ?0%, all inputs ac coupled with 100nf, t a = operating temperature range symbol parameter conditions min. typ. max. units i cc supply current 60 85 ma v cc supply range 4.5 5.0 5.5 v av yc low frequency gain (y out , c out ) at 400khz 5.75 6.0 6.25 db av rfmod low frequency gain (rfmod) at 400khz 6.1 6.7 7.3 db av cv low frequency gain (cv out ) at 400khz 5.55 5.9 6.25 db c out output level (during sync) sync present on y in 1.6 2.0 2.4 v y out output level (during sync) sync present on y in 0.75 1.0 1.25 v cv out output level (during sync) sync present on y in 0.75 1.0 1.25 v rfmod output level (during sync) sync present on y in 0.65 1.0 1.35 v tclamp clamp response time (y channel) settled to within 10mv, 0.1? cap on y in and c in 59ms f 1db ?.0db bandwidth (flatness) (y out , c out , and cv out ) no peaking cap (note 1) 4.2 4.5 mhz f c ?db bandwidth (flatness) (y out , c out , and cv out ) 6.7 7.1 mhz f sb stopband rejection (y out , c out , and cv out ) f in = 27mhz -37 ?2 db v i input signal dynamic range (all channels) ac coupled 1.2 1.4 v p-p i sc output short circuit current (all channels) c out , y out , cv out , rfmod to gnd (note 2) 40 80 ma
product specification ml6416 rev. 2 april 2004 5 notes 1. peaking capacitor increases cv output at 4.2mhz nominally by 0.7db 2. sustained short circuit protection limited to 10 seconds 3. referenced to 400khz 4. group delay is tested down to 400khz but guaranteed by design to 200khz. 5. guaranteed by characterization cl output shunt capacitance (all channels) (note 5) all outputs 35 pf dg differential gain (note 5) y out , c out , and cv out 0.4 1 % dp differential phase (note 5) y out , c out , and cv out 0.4 1 thd output distortion (all channels) (note 5) vout = 1.8v p-p , y/c out at 3.58mhz 0.8 1.0 % xtalk crosstalk (note 5) from c in of 0.5v p-p at 3.58mhz to y out -45 -55 db from y in input of 0.4v p-p at 3.58mhz, to c out -50 -58 db psrr psrr (all channels) (note 5) 0.5v p-p (100khz) at vcc -30 -40 db snr y, c channel (note 5) ntc-7 weighting 4.2 mhz lowpass -65 -75 db cv channel (note 5) ntc-7 weighting 4.2 mhz lowpass -60 -70 db rfmod channel (note 5) ntc-7 weighting 4.2 mhz lowpass -55 -65 db tpd propagation delay (y, c, cv) (note 5) 30 70 110 ns ? tpd group delay deviation from flatness (y, c, and cv) (note 5) to 3.58mhz (ntsc) 9 ns tskew skew between y out and c out (note 5) at 1mhz 0 ns t cldcv chroma-luma delay c vout f = 3.58 mhz (referenced to 400khz) -35 0 35 ns t clgcv chroma-luma gain c vout f = 3.58 mhz (referenced to 400khz) 92 95 104 % gd mod group delay rfmod f = 3.58mhz (referenced to 400khz) -205 -170 -135 ns t cldmod chroma-luminance delay rfmod f = 3.58mhz (referenced to 400khz) -185 -150 -115 ns t clgmod chroma-luminance gain rfmod f = 3.58mhz (referenced to 400khz) 95 100 105 % dg rfmod differential gain rfmod channel 1.5 4 % dp rfmod differential phase rfmod channel 1.0 1.5 pk gain peaking (note 3) rfmod channel at 2.0mhz 0.5 0.75 db mcf modulator channel flatness (note 3) at 3.75mhz -0.5 -0.1 +0.75 db av notch attenuation (note 3) from 4.425mhz to 4.63mhz 14 db av notch attenuation (note 3) at 4.1mhz 2.5 db av notch attenuation (note 3) at 4.2mhz 5 db t pass passband group delay, rfmod (note 4) f = 200khz to f = 3mhz -50 50 ns electrical characteristics (continued) unless otherwise speci?d, v cc = 5.0v ?0%, all inputs ac coupled with 100nf, t a = operating temperature range symbol parameter conditions min. typ. max. units
ml6416 product specification 6 rev. 2 april 2004 mechanical dimensions inches (millimeters) seating plane 0.148 - 0.158 (3.76 - 4.01) pin 1 id 0.228 - 0.244 (5.79 - 6.20) 0.189 - 0.199 (4.80 - 5.06) 0.012 - 0.020 (0.30 - 0.51) 0.050 bsc (1.27 bsc) 0.015 - 0.035 (0.38 - 0.89) 0.059 - 0.069 (1.49 - 1.75) 0.004 - 0.010 (0.10 - 0.26) 0.055 - 0.061 (1.40 - 1.55) 8 0.006 - 0.010 (0.15 - 0.26) 0 - 8 1 0.017 - 0.027 (0.43 - 0.69) (4 places) package: s08 8-pin soic
ml6416 product specification life support policy fairchild? products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. a critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com ? 2004 fairchild semiconductor corporation disclaimer fairchild semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. fairchild does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others. ordering information model part number lead free package container pack quantity ml6416 ML6416CS soic-8 rail 95 ml6416 ML6416CSx soic-8 reel 2500 ml6416 ML6416CSx_nl soic-8 reel 2500 t emperature range for all parts: 0? to +70?
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