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  this document contains information on a new product under development. motorola reserves the right to change or discontinue this product without notice. ? motorola, inc., 2002 data gnd xtal0 rext cfsk vcc rfout gndrf vcc enable 1 2 3 7 4 5 6 8 13 12 11 10 9 14 xtal1 dataclk mode band pin connections features ? selectable frequency bands: 315-434mhz and 868-928mhz ? ook and fsk modulation ? adjustable output power range ? fully integrated vco ? supply voltage range: 1.9-3.6v ? very low standby current: 0.1na @ t a =25 c ? low supply voltage shutdown ? data clock output for microcontroller ? extended temperature range: -40 c to 125 c ? low external component count ? typical application compliant with etsi standard ordering information device ambiant temperature range package MC33493 dtb -40 c to 125 c tssop14 technical data tango3 MC33493/d rev. 1.6, 6/2002 pll tuned uhf transmitter for data transfer applications figure 1: simplified block diagram f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
2 MC33493 technical data motorola pin function description pin function description absolute maximum ratings notes: 1 human body model, aec-q100-002 rev. c. 2 machine model, aec-q100-003 rev. e. transmitter functional description MC33493 is a pll tuned low power uhf transmitter. the different modes of operation are controlled by the microcontroller through several digital input pins. the power supply voltage ranges from 1.9v to 3.6v allowing operation with a single lithium cell. phase locked loop and local oscillator the vco is a completely integrated relaxation oscillator. the phase frequency detector (pfd) and the loop filter are fully integrated. the exact output frequency is equal to: f rfout = f xtal x [pll divider ratio]. the frequency band of operation is selected through the band pin. table 1 provides details for each frequency band selection. pin name description 1 dataclk clock output to the microcontroller 2 data data input 3 band frequency band selection 4 gnd ground 5 xtal1 reference oscillator input 6 xtal0 reference oscillator output 7 rext power amplifier output current setting input 8 cfsk fsk switch output 9 vcc power supply 10 rfout power amplifier output 11 gndrf power amplifier ground 12 vcc power supply 13 enable enable input 14 mode modulation type selection input parameter symbol value unit supply voltage v cc v gnd - 0.3 to 3.7 v voltage allowed on each pin v gnd - 0.3 to v cc + 0.3 v esd hbm voltage capability on each pin (note 1) 2000 v esd mm voltage capability on each pin (note 2) 150 v storage temperature ts -65 to +150 c junction temperature tj +150 c f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
rf output stage motorola MC33493 technical data 3 table 1: band selection and associated divider ratios an out-of-lock function is performed by monitoring the pfd output voltage. when it exceeds defined limits, the rf output stage is disabled. rf output stage the output stage is a single ended square wave switched current source. harmonics are present in the output current drive. their radiated absolute level depends on the antenna characteristics and output power. typical application demonstrates compliance to etsi standard. a resistor r ext connected to the rext pin controls the output power allowing a trade-off between radiated power and current consumption. the output voltage is internally clamped to v cc 2v be (typ. v cc 1.5v @ t a =25 c). modulation a low logic level has to be applied on pin mode to select the on off keying (ook) modulation. this modulation is performed by switching on/off the rf output stage. the logic level applied on pin data controls the output stage state: data=0 output stage off, data=1 output stage on. if a high logic level is applied on pin mode, then frequency shift keying (fsk) modulation is selected. this modulation is achieved by crystal pulling. an internal switch connected to cfsk pin enables to switch the external crystal load capacitors. figure 2 shows the possible configurations: serial and parallel. the logic level applied on pin data controls the state of this internal switch: data=0 switch off, data=1 switch on. data input is internally re-synchronized by the crystal reference signal. the corresponding jitter on the data duty cycle cannot exceed 1 reference period ( 75ns for a 13.56mhz crystal). this crystal pulling solution implies that the rf output frequency deviation equals the crystal frequency deviation multiplied by the pll divider ratio (see table 1). band input level frequency band (mhz) pll divider ratio crystal oscillator frequency (mhz) high 315 32 9.84 434 13.56 low 868 64 f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
4 MC33493 technical data motorola microcontroller interface figure 2: crystal pulling configurations microcontroller interface four digital input pins (enable, data, band and mode) enable the circuit to be controlled by a microcontroller. it is recommended to configure the band frequency and the modulation type before enabling the circuit. one digital output (dataclk) provides to the microcontroller a reference frequency for data clocking. this frequency is equal to the crystal oscillator frequency divided by 64 (see table 2). table 2: dataclk frequency vs crystal oscillator frequency state machine figure 3 details the state machine. crystal oscillator frequency (mhz) dataclk frequency (khz) 9.84 154 13.56 212 f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
state machine motorola MC33493 technical data 5 figure 3: state machine state 1: the circuit is in standby mode and draws only a leakage current from the power supply. state 2: in this state, the pll is out of the lock-in range. therefore the rf output stage is switched off preventing rf transmission. data clock is available on pin dataclk. each time the device is enabled, the state machine passes through this state. state 3: in this state, the pll is within the lock-in range. if t 6 MC33493 technical data motorola power management figure 4: signals waveforms and timings definition power management when the battery voltage falls below the shutdown voltage threshold (v sdwn ) the whole circuit is switched off. it has to be noted that after this shutdown, the circuit is latched until a low level is applied on pin enable (see state 4 of the state machine). data clock at start-up data clock timing is valid after the data clock settling time. as clock is switched off asynchronously, the last period duration cannot be guaranteed. enable dataclk data state 1 state 2 state 3 t dataclk_settling > t pll_lock_in t pll_lock_in mode=0 (ook) mode=1 (fsk) state 1 f carrier f carrier f high f low f high f low  : pll locked f high  rfout f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
electrical characteristics motorola MC33493 technical data 7 electrical characteristics unless otherwise specified, voltage range v cc =[v shutdown ;3.6v], temperature range t a =[-40c;+125c], r ext =12k ? +/-5%, rf output frequency f carrier =433.92mhz, reference frequency f reference =13.560mhz, output load r l =50 ? +/-1% (figure 9). values refer to the circuit shown in the recommended application schematics: figure 12 (14) for ook (fsk) modulation. typical values reflect average measurement at v cc =3v, t a =25 c. parameter test conditions, comments limits unit min. typ. max. 1 general parameters 1.1 supply current in standby mode t a 25c -0.15na 1.2 t a =60c - 7 30 na 1.3 t a =85c - 40 100 na 1.4 t a =125c - 800 1700 na 1.7 supply current in transmission mode 315 & 434 bands, ook and fsk modulation, continuous wave, t a =25c -11.613.5ma 1.5 315 & 434 bands, data=0, -40c t a 125c -4.46.0ma 1.6 868mhz band, data=0, -40c t a 125c -4.66.2ma 1.8 315 & 434 bands, ook and fsk modulation, continuous wave, -40c t a 125c -11.614.9ma 1.9 868mhz band, ook and fsk modulation, continuous wave, -40c t a 125c -11.815.1ma 1.10 supply voltage - 3 3.6 v 1.11 shutdown voltage threshold t a =-40c -2.042.11v 1.12 t a =-20c - 1.99 2.06 v 1.13 t a =25c - 1.86 1.95 v 1.14 t a =60c - 1.76 1.84 v 1.15 t a =85c - 1.68 1.78 v 1.16 t a =125c - 1.56 1.67 v f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
8 MC33493 technical data motorola electrical characteristics 2 rf parameters 2.1 r ext value 12 - 21 k ? 2.2 output power 315 & 434mhz bands, with 50 ? matching network -5-dbm 2.3 868mhz band, with 50 ? matching network -1-dbm 2.4 315 & 434mhz bands, -40c t a 125c -3 0 3 dbm 2.8 868mhz band, -40c t a 125c -7 -3 0 dbm 2.12 current & output power variation vs. r ext value 315 & 434mhz bands, with 50 ? matching network - -0.35 -0.25 - db/k ? ma/ k ? 2.13 harmonic 2 level 315 & 434mhz bands, with 50 ? matching network --34-dbc 2.14 868mhz band, with 50 ? matching network --49-dbc 2.15 315 & 434mhz bands - -23 -17 dbc 2.16 868mhz band - -38 -27 dbc 2.17 harmonic 3 level 315 & 434mhz bands, with 50 ? matching network --32-dbc 2.18 868mhz band, with 50 ? matching network --57-dbc 2.19 315 & 434mhz bands - -21 -15 dbc 2.20 868mhz band - -48 -39 dbc 2.21 spurious level @ f carrier f dataclk 315 & 434mhz bands - -36 -24 dbc 2.22 868mhz band - -29 -17 dbc 2.23 spurious level @ f carrier f reference 315 mhz band - -37 -30 dbc 2.24 434mhz band - -44 -34 dbc 2.25 868mhz band - -37 -27 dbc 2.41 spurious level @ f carrier /2 315mhz band - -62 -53 dbc 2.26 434mhz band - -80 -60 dbc 2.27 868mhz band - -45 -39 dbc electrical characteristics unless otherwise specified, voltage range v cc =[v shutdown ;3.6v], temperature range t a =[-40c;+125c], r ext =12k ? +/-5%, rf output frequency f carrier =433.92mhz, reference frequency f reference =13.560mhz, output load r l =50 ? +/-1% (figure 9). values refer to the circuit shown in the recommended application schematics: figure 12 (14) for ook (fsk) modulation. typical values reflect average measurement at v cc =3v, t a =25 c. parameter test conditions, comments limits unit min. typ. max. f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
electrical characteristics motorola MC33493 technical data 9 2.30 phase noise 315 & 434mhz bands, 175khz from f carrier --75-68 dbc/ hz 2.31 868mhz band, 175khz from f carrier --73-66 dbc/ hz 2.32 pll lock-in time, t pll_lock_in f carrier within 30khz from the final value, crystal series resistor=150 ? - 400 1600 s 2.33 xtal1 input capacitance - 1 - pf 2.34 crystal resistance ook modulation - 20 200 ? 2.44 fsk modulation 20 50 2.35 ook modulation depth 75 90 - dbc 2.36 fsk modulation carrier frequency to ta l d e vi a t i o n 315 & 434mhz bands, see note 1 - - 100 khz 2.37 868mhz band, see note 1 - - 200 khz 2.38 cfsk output resistance mode=0, data=x mode=1, data=0 50 70 - k ? 2.39 mode=1, data=1 - 90 300 ? 2.43 cfsk output capacitance - 1 - pf 2.40 data rate manchester coding - - 10 kbit/s 2.41 data to rf delay difference between falling and rising edges, t delay_difference mode=0, see note 2 3.5 5.25 7.5 s 2.42 mode=1, see note 2 -200 - 200 ns note 1: this parameter is depending on crystal characteristics, load capacitor values (see table 6) and pcb track capacitance. note 2: delay difference definition electrical characteristics unless otherwise specified, voltage range v cc =[v shutdown ;3.6v], temperature range t a =[-40c;+125c], r ext =12k ? +/-5%, rf output frequency f carrier =433.92mhz, reference frequency f reference =13.560mhz, output load r l =50 ? +/-1% (figure 9). values refer to the circuit shown in the recommended application schematics: figure 12 (14) for ook (fsk) modulation. typical values reflect average measurement at v cc =3v, t a =25 c. parameter test conditions, comments limits unit min. typ. max. input data demodulated data t delay_rise t delay_fall from 50% of data edge to corresponding t delay_difference =t delay_fall -t delay_rise demodulated signal envelope edge: f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
10 MC33493 technical data motorola rf output spectrum rf output spectrum following are spectrums of transmitter carrier, measured in conduction mode. three different spans have been used. the 5mhz span spectrum (figure ) shows phase noise response close to the rf carrier, and the noise suppression within the pll loop bandwidth. the 50mhz span spectrum (figure 6) shows both phase noise and reference spurious. finally figure 7 shows second and third harmonics of carrier. all these spectrums are measured in ook modulation, at data=1. figure 8 shows spectrum in case of fsk modulation, with 45khz deviation, at 4kbit/s data rate. 3 microcontroller interfaces 3.1 input low voltage pins band, mode, enable, data 0- 0.3 x v cc v 3.2 input high voltage 0.7 x v cc - v cc v 3.3 input hysteresis voltage - - 120 mv 3.4 input current pins band, mode, data = 1 - - 100 na 3.5 enable pull down resistor - 180 - k ? 3.6 dataclk output low voltage c load = 2pf 0- 0.25 x v cc v 3.7 dataclk output high voltage 0.75 x v cc - v cc v 3.8 dataclk rising time c load = 2pf, measured from 20% to 80% of the voltage swing - 250 500 ns 3.9 dataclk falling time - 150 400 ns 3.10 dataclk settling time, t dataclk_settling 45% < duty cycle f dataclk < 55% - 800 2000 s electrical characteristics unless otherwise specified, voltage range v cc =[v shutdown ;3.6v], temperature range t a =[-40c;+125c], r ext =12k ? +/-5%, rf output frequency f carrier =433.92mhz, reference frequency f reference =13.560mhz, output load r l =50 ? +/-1% (figure 9). values refer to the circuit shown in the recommended application schematics: figure 12 (14) for ook (fsk) modulation. typical values reflect average measurement at v cc =3v, t a =25 c. parameter test conditions, comments limits unit min. typ. max. f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
rf output spectrum motorola MC33493 technical data 11 figure 5: rf spectrum at 434mhz frequency band displayed with a 5mhz span figure 6: rf spectrum at 434mhz frequency band displayed with a 50mhz span resolution bandwidth: 30khz resolution bandwidth: 100khz f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
12 MC33493 technical data motorola rf output spectrum figure 7: rf spectrum at 434mhz frequency band displayed with a 1.5ghz span figure 8: rf spectrum at 434mhz band for a 70khz fsk deviation at 4.8kbit/s f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
output power measurement motorola MC33493 technical data 13 output power measurement the rf output levels given in the electrical characteristics section are measured with a 50 ? load directly connected to the pin rfout as shown below in figure 9. this wideband coupling method gives results independent of the application. figure 9: output power measurement configurations the configuration shown in figure 10-a provides a better efficiency in terms of output power and harmonics rejection. schematic on figure 10-b gives the equivalent circuit of the pin rfout and the dc bias impeder as well as the matching network components for 434mhz frequency band. figure 10: output model and matching network for 434mhz band figure 11 gives the output power versus the r ext resistor value with 50 ? load and with matching network. rfout rf output r l =50 ? 100pf impeder: tdk mmz1608y102cta00 vcc rfout rf output r l =50 ? impeder: tdk mmz1608y102cta00 vcc matching network c 0 r 0 r l l 1 1.5pf 250 ? 3k ? 50 ? matching 330pf c 3 39nh rfout pin load impeder (a) (b) network r i f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
14 MC33493 technical data motorola complete application schemati c and pcb for ook modulation figure 11: output power at 434mhz band vs r ext value the 50 ? matching network used for the 868mhz band is similar to the 434mhz, except components values: in figure 10b, l1 is changed to 8.2nh and c3 to 470pf. the typical gain of this 868mhz matching network is 4db compared to unmatched configuration. complete application schematic and pcb for ook modulation figure 12 gives a complete application schematic using a motorola mc68hc908rk2 microcontroller. ook modulation is selected, f carrier = 433.92mhz. c 2 to c 5 capacitors can be removed if switches debounce is done by software. figure 12: application sch ematic for ook modulati on, 434mhz frequency band note that for 868mhz band application, the input pin band must be wired to ground. see component description output power measurement in typical conditions (434mhz - vcc=3v - 25c) output power when matched (dbm) -0.35db/k ? ? ? ? # -0.35ma/k ? ? ? ? output power on 50 ? ? ? ? load (dbm) -6 -4 -2 0 2 4 6 8 6 9 12 15 18 21 24 rext (k ? ? ? ? ) rfout level (dbm) rext specified range vbat vbat vbat vbat sw1 sw2 sw2a sw1a c6 8.2pf c3 2.2nf c2 2.2nf c5 2.2nf c4 2.2nf c7 22nf r1 750 y1 13.56mhz led1 c9 2.2pf c8 100pf r2 12k b1 1 2 u2 mc68hc908rk2 pta0 1 ptb0/mclk 2 ptb1 3 ptb2/tch0 4 ptb4/tch1 5 ptb5 6 ptb3/tclk 7 osc1 8 osc2 9 vss 10 vdd 11 irq1 12 rst 13 pta7 14 pta6/kbd6 15 pta5/kbd5 16 pta4/kbd4 17 pta3/kbd3 18 pta2/kbd2 19 pta1/kbd1 20 c10 100nf u1 MC33493 dataclk 1 data 2 band 3 gnd 4 xtal1 5 xtal0 6 rext 7 cfsk 8 vcc 9 rfout 10 gndrf 11 vcc 12 enable 13 mode 14 f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
complete application schematic and pcb for fsk modulation motorola MC33493 technical data 15 on following tables 3 and 4. table 3: external components description for ook note 3: c6 value equals recommended crystal load capacitance reduced by the pcb stray capacitances. examples of crystal reference are given below (see characteristics on table 4) for different application bands: - at 315mhz band (f reference = 9.84375mhz, -40c < t a < 85c): ndk ln-g102-950, - at 434/868mhz bands (f reference = 13.56mhz, -40c < t a < 125c): ndk nx8045gb/csj s1-40125-8050-12 and ndk nx1255ga. table 4: typical crystal characteristics (smd package) figure 13 shows a two buttons keyfob board. size is 30 x 45 millimeters. figure 13: two buttons keyfob board layout complete application schematic and pcb for fsk modulation figure 14 gives a complete application schematic using a motorola mc68hc908rk2 microcontroller. fsk modulation is selected, f carrier = 433.92mhz. c 1 capacitor can be removed if switch debounce is done by software. component function value unit y1 crystal, see table 4 315mhz band: 9.84 mhz 434mhz band: 13.56 mhz 868mhz band: 13.56 mhz r2 rf output level setting resistor (r ext ) 12 k ? c6 crystal load capacitor 8.2, see note 3 pf c7 power supply decoupling capacitors 22 nf c8 100 pf parameter ndk ln-g102-950 (for 315mhz) ndk nx8045gb/csj s1-40125-8050-12 (for 434mhz & 868mhz) ndk nx1255ga (for 434mhz & 868mhz) unit load capacitance 12 12 12 pf motional capacitance 3.33 4.4 10.5 ff static capacitance 1.05 1.5 2.46 pf loss resistance 28 18.5 10 ? f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
16 MC33493 technical data motorola complete application schematic and pcb for fsk modulation figure 14: . application schematic for fsk modulation, se rial configuration, 434mhz frequency band note that for 868mhz band application, the input pin band must be wired to ground. see component description on table 5. table 5: external components description for fsk figure 15 gives the corresponding pcb layout. component function value unit y1 crystal 315mhz band: 9.84, see table 4 mhz 434mhz band: 13.56, see table 4 mhz 868mhz band: 13.56, see table 4 mhz r1 rf output level setting resistor (r ext ) 12 k ? c3 crystal load capacitor see table 6 pf c4 pf c2 power supply decoupling capacitor 22 nf c6 100 pf f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
recommendations for fsk modulation motorola MC33493 technical data 17 figure 15: application pcb layout for fsk modulati on, serial configuration, 434mhz frequency band table 6 gives the measured fsk deviations respective to c3 and c4 capacitor values for three deviations. crystal reference is ndk nx8045gb/csj s1-40125-8050-12. table 6 : crystal pulling capacitor values versus carrier frequency total deviation -1- another crystal reference, ndk nx1255ga (see table 4), enables to reach higher deviation as mentioned on table 7. these results are due to the higher crystal motional capacitor. table 7 : crystal pulling capacitor values versus carrier frequency total deviation -2- recommendations for fsk modulation fsk deviation is function of total load capacitance presented to the crystal. this load capacitance is constituted by various contributors: - the crystal characteristic, especially its static capacitance, - the external load capacitors (c3, c4 as defined in figure 14 and table 6), - the device internal capacitance of pins xtal0, xtal1, cfsk, - the pcb track capacitance. the schematic given in figure 16 shows a typical fsk application using serial capacitor configuration, where device pads and pcb track capacitances are mentioned. device pad capacitance is defined by the package capacitance and by the internal circuitry. typical capacitance values for these pads are given in table 8. some realistic assumptions and measurements have been made concerning track parasitic capacitances for a 0.8mm fr4 double side application pcb. they are given in table 8 and the corresponding pcb layout is shown in figure 15. to achieve large deviations, this total load capacitance need to be lowered. for a given crystal, the pcb must be very carefully laid out in order to reduce as much as possible the capacitance of the tracks wired to xtal0, carrier frequency (mhz) carrier frequency total deviation (khz) c3 capacitor (pf) c4 capacitor (pf) recommended r_off value (k ? ) 434 45 4.7 6.8 10 70 2.2 10 - 100 1 15 22 868 90 4.7 6.8 10 140 2.2 10 - 200 1 15 22 carrier frequency (mhz) carrier frequency total deviation (khz) c3 capacitor value (pf) c4 capacitor value (pf) recommended r_off value (k ? ) 434 150 1 27 - 868 300 1 27 - f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
18 MC33493 technical data motorola recommendations for fsk modulation xtal1, cfsk pins. recommendation : a r_off resistor can be added in parallel with the fsk switch to optimize the transient response of demodulated signal. table 6 gives the optimized r_off values for two deviations. note that there is no footprint for r_off resistor on the layout figure 15. when used, this component can be soldered on top of c3. figure 16: schematic detailing the crystal load capacitance contributors table 8: pads and tracks parasitic values capacitance value unit c_pad_xtal0 1 pf c_pad_xtal1 1 pf c_pad_cfsk 1 pf c_track_xtal0 1.5 pf c_track_xtal1 1.5 pf c_track_cfsk 1.5 pf f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
case outline dimensions motorola MC33493 technical data 19 case outline dimensions case 948g-01 issue o dim min max min max inches millimeters a 4.90 5.10 0.193 0.200 b 4.30 4.50 0.169 0.177 c --- 1.20 --- 0.047 d 0.05 0.15 0.002 0.006 f 0.50 0.75 0.020 0.030 g 0.65 bsc 0.026 bsc h 0.50 0.60 0.020 0.024 j 0.09 0.20 0.004 0.008 j1 0.09 0.16 0.004 0.006 k 0.19 0.30 0.007 0.012 k1 0.19 0.25 0.007 0.010 l 6.40 bsc 0.252 bsc m 0 8 0 8 notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. 3. dimension a does not include mold flash, protrusions or gate burrs. mold flash or gate burrs shall not exceed 0.15 (0.006) per side. 4. dimension b does not include interlead flash or protrusion. interlead flash or protrusion shall not exceed 0.25 (0.010) per side. 5. dimension k does not include dambar protrusion. allowable dambar protrusion shall be 0.08 (0.003) total in excess of the k dimension at maximum material condition. 6. terminal numbers are shown for reference only. 7. dimension a and b are to be s u 0.15 (0.006) t 2x l/2 s u m 0.10 (0.004) v s t l -u- seating plane 0.10 (0.004) -t- section n-n detail e j j1 k k1 detail e f m -w- 0.25 (0.010) 8 14 7 1 pin 1 ident. h g a d c b s u 0.15 (0.006) t -v- 14x ref k n n f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
how to reach us: usa/europe/locations not listed: motorola literature distribution; p.o. box 5405, denver, colorado 80217 1-303-675-2140 or 1-800-441-2447 japan: motorola japan ltd.; sps, technical information center, 3-20- 1, minami-azabu minato-ku, tokyo 106-8573 japan 81-3-3440-3569 asia/pacific: motorola semiconductors h.k. ltd.; silicon harbour centre, 2 dai king street, tai po industrial estate, tai po, n.t., hong kong 852-26668334 technical information center: 1-800-521-6274 home page: http://www.motorola.com/semiconductors information in this document is provided solely to enable system and software implementers to use motorola products. there are no express or implied copyright licenses granted hereunder to design or fabricate any integr ated circuits or integrated circuits based on the information in this document. motorola reserves the right to make changes without further notice to any products herein. motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does mo torola assume any liability arising out of the application or use of any product or circ uit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. ?typical? parameters which may be provided in motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by customer?s technical experts. motorola does not convey any license under its patent rights nor the rights of others. motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the motorola product could create a situation where personal injury or death may occur. should buyer purchase or use motorola products for any such unintended or unauthorized application, buyer shall i ndemnify and hold motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that motorola was negligent re garding the design or manufacture of the part. motorola and the stylized m logo are registered in the u.s. patent and trademark office. all other product or service names are the prop erty of their respective owners. motorola, inc. is an equal opportunity/affirmative action employer. ? motorola, inc. 2002 MC33493/d f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .


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