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1 features applications description sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 digital tv tuner ic integrated mixer/oscillator/pll and if gca vhf-l, vhf-h, uhf 3-band local oscillator rf agc detector circuit i 2 c bus protocol bidirectional data transmission high-voltage tuning voltage output four npn-type band switch drivers one auxiliary port/5-level adc crystal oscillator output programmable reference divider ratio (24/28/32/64/80/128) if gca enable/disable control selectable digital ifout and analog ifout standby mode 5-v power supply 44-pin thin shrink small-outline package (tssop) digital tvs digital catvs set-top boxes the sn761640 is a low-phase-noise synthesized tuner ic designed for digital tv tuning systems. the circuit consists of a pll synthesizer, three-band local oscillator and mixer, rf agc detector circuit, and if gain-controlled amplifier. the sn761640 is available in a small-outline package. 1 please be aware that an important notice concerning availability, standard warranty, and use in critical applications of texas instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. production data information is current as of publication date. copyright ? 2008, texas instruments incorporated products conform to specifications per the terms of the texas instruments standard warranty. production processing does not necessarily include testing of all parameters. 12 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 vlo osc b vlo osc c uhf osc b1 vhi osc b vhi osc c uhf osc c1uhf osc c2 uhf osc b2 osc gnd ifgca ctrl vcc if gca i 1 n if gca i 2 n if gca gnd if gca out2 cp vtu if gnd dif out2 aif out dif out1 if gca out1 uhf rf in1uhf rf in2 vhi rf in vlo rf in bs4rf gnd mix out2 mix out1 if in rf agc out p5/adc rf agc buf bs3 xtal out xtal2 xtal1 bs2bs1 sda scl as bus gnd dbt package (top view) 38 39 40 41 42 43 44 3736 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20
functional block diagram sn761640 sles237 ? october 2008 .............................................................................................................................................................................................. www.ti.com 2 submit documentation feedback copyright ? 2008, texas instruments incorporated product folder link(s): sn761640 ifamplifier operationalamplifier xtal oscillator 128/80/64/50/ 28/24 div phase detector charge pump i c bus 2 interface 5-level adc dif out1 rf agc buff rf agc out v tu if gndcp dif out2 uhf rf in2 vlo rf in vhi rf in uhf rf in1 rf gnd xtal1 xtal2 xtal out scl sda as bus gnd npn band-switch port vlo osc b vhi osc c osc gnd vlo osc c vhi osc b uhf osc b1uhf osc c1 uhf osc c2 uhf osc b2 mix out2mix out1 v cc if gca out1 if gca out2 if gca gnd bs4 bs3 bs2 bs1 if gca in1 if gca in2 if gca ctrl p5/adc vhf-l oscillator vhf-h oscillator uhf oscillator rf agc detect ifgca vhf-l mixer vhf-h mixer uhf mixer programmable divider if in aif out
terminal functions sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 terminal description schematic name no. aif out 13 if amplifier output (analog) figure 8 as 28 address selection input figure 1 bs1 31 band switch 1 output figure 2 bs2 32 band switch 2 output figure 2 bs3 33 band switch 3 output figure 2 bs4 44 band switch 4 output figure 2 bus gnd 27 bus ground cp 10 charge-pump output figure 3 dif out1 14 if amplifier output 1 figure 9 dif out2 15 if amplifier output 2 figure 9 if gca ctrl 16 if gca ctrl voltage inout figure 4 if gca gnd 20 if gca ground if gca in1 18 if gca input 1 figure 5 if gca in2 19 if gca input 2 figure 5 if gca out1 22 if gca output 1 figure 6 if gca out2 21 if gca output 2 figure 6 if gnd 12 if ground if in 36 if amplifier input figure 7 mixout1 37 mixer output 1 figure 10 mixout2 38 mixer output 2 figure 10 osc gnd 9 oscillator ground p5/adc 26 port-5 output/adc input figure 11 rf agc buf 34 rf agc buffer output figure 12 rf agc out 35 rf agc output figure 13 rf gnd 39 rf ground scl 29 serial clock input figure 14 sda 30 serial data input/output figure 15 uhf osc b1 5 uhf oscillator base 1 figure 16 uhf osc b2 8 uhf oscillator base 2 figure 16 uhf osc c1 6 uhf oscillator collector 1 figure 16 uhf osc c2 7 uhf oscillator collector 2 figure 16 uhf rf in1 43 uhf rf input 1 figure 17 uhf rf in2 42 uhf rf input 2 figure 17 v cc 17 supply voltage for mixer/oscillator/pll: 5 v vhi osc b 3 vhf-h oscillator base figure 18 vhi osc c 4 vhf-h oscillator collector figure 18 vhi rf in 41 vhf-h rf input figure 19 vlo osc b 1 vhf-l oscillator base figure 20 vlo osc c 2 vhf-l oscillator collector figure 20 vlo rf in 40 vhf-l rf input figure 21 vtu 11 tuning voltage amplifier output figure 3 xtal1 23 4-mhz crystal oscillator output figure 22 xtal2 24 4-mhz crystal oscillator input figure 22 xtalout 25 4-mhz crystal oscillator buffer output figure 23 copyright ? 2008, texas instruments incorporated submit documentation feedback 3 product folder link(s): sn761640
sn761640 sles237 ? october 2008 .............................................................................................................................................................................................. www.ti.com figure 1. as figure 2. bs1, bs2, bs3, and bs4 figure 3. cp and vtu figure 4. if gca ctrl figure 5. if gca in1 and if gca in2 figure 6. if gca out1 and if gca out2 figure 7. if in figure 8. aif out 4 submit documentation feedback copyright ? 2008, texas instruments incorporated product folder link(s): sn761640 a 36 1 k w 1 k w 1 k w 2 k w 28 500 w 15 w 22 21 10 w 13 1 k w 100 k w 16 18 19 v bias 1 k w 1 k w 11 10 25 w 25 w 3344 32 31 10 w 50 k w
sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 figure 9. dif out1 and dif out2 figure 10. mixout1 and mixout2 figure 11. p5/adc figure 12. rf agc buf figure 13. rf agc out figure 14. scl figure 15. sda figure 16. uhf osc b1, uhf osc b2, uhf osc c1, and uhf osc c2 copyright ? 2008, texas instruments incorporated submit documentation feedback 5 product folder link(s): sn761640 30 1 k w 25 w 78 6 5 8 k w 8 k w 14 10 w 15 26 50 w 25 w 29 1 k w 38 37 a 34 25 w 35
sn761640 sles237 ? october 2008 .............................................................................................................................................................................................. www.ti.com figure 17. uhf rf in1 and uhf rf in2 figure 18. vhi osc b and vhi osc c figure 19. vhi rf in figure 20. vlo osc b and vlo osc c figure 21. vlo rf in figure 22. xtal1 and xtal2 figure 23. xtalout 6 submit documentation feedback copyright ? 2008, texas instruments incorporated product folder link(s): sn761640 25 50 w 3 k w 40 3 k w 41 24 23 20 w 10 w 50 k w 42 43 8 k w 8 k w 4 3 8 k w 8 k w 21
absolute maximum ratings (1) recommended operating conditions sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 over recommended operating free-air temperature range (unless otherwise noted) min max unit v cc supply voltage range (2) v cc ? 0.4 6.5 v v gnd input voltage range 1 (2) rf gnd, osc gnd ? 0.4 0.4 v vtu input voltage range 2 (2) vtu ? 0.4 35 v v in input voltage range 3 (2) other pins ? 0.4 6.5 v p d continuous total dissipation (3) t a 25 c 1438 mw t a operating free-air temperature range ? 20 85 c t stg storage temperature range ? 65 150 c t j maximum junction temperature 150 c t sc(max) maximum short-circuit time each pin to v cc or to gnd 10 s (1) stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) voltage values are with respect to the if gnd of the circuit. (3) derating factor is 11.5 mw/ c for t a 25 c. min nom max unit v cc supply voltage v cc 4.5 5 5.5 v vtu tuning supply voltage vtu 30 33 v i bs output current of band switch bs1 ? bs4, one band switch on 10 ma i p5 output current of port 5 p5/adc ? 5 ma t a operating free-air temperature ? 20 85 c xxx this integrated circuit can be damaged by esd. texas instruments recommends that all integrated circuits be handled with appropriate precautions. failure to observe proper handling and installation procedures can cause damage. if in1, mixout1, and mixout2 (pins 36 ? 38) withstand 1.5 kv, and all other pins withstand 2 kv, according to the human-body model (1.5 k ? , 100 pf). copyright ? 2008, texas instruments incorporated submit documentation feedback 7 product folder link(s): sn761640
electrical characteristics total device and serial interface sn761640 sles237 ? october 2008 .............................................................................................................................................................................................. www.ti.com v cc = 4.5 v to 5.5 v, t a = ? 20 c to 85 c (unless otherwise noted) parameter test conditions min typ max unit i cc 1 supply current 1 bs[1:4] = 0100, ifgca disabled 90 120 ma i cc 2 supply current 2 bs[1:4] = 0100, ifgca enabled 115 145 ma i cc 3 bs[1:4] = 0100, ifgca enabled, supply current 3 125 155 ma i bs = 10 ma i cc-stby standby supply current bs[1:4] = 1100 9 ma v ih high-level input voltage (scl, sda) 2.3 v v il low-level input voltage (scl, sda) 1.05 v i ih high-level input current (scl, sda) 10 m a i il low-level input current (scl, sda) ? 10 m a power-on-reset supply voltage (threshold of supply v por 2.1 2.8 3.5 v voltage between reset and operation mode) i 2 c interface v ash address-select high-input voltage (as) v cc = 5 v 4.5 5 v v asm1 address-select mid-input 1 voltage (as) v cc = 5 v 2 3 v v asm2 address-select mid-input 2 voltage (as) v cc = 5 v 1 1.5 v v asl address-select low-input voltage (as) v cc = 5 v 0.5 v i ash address-select high-input current (as) 50 m a i asl address-select low-input current (as) ? 10 m a v adc adc input voltage see table 10 0 v cc v i adh adc high-level input current v adc = v cc 10 m a i adl adc low-level input current v adc = 0 v ? 10 m a v ol low-level output voltage (sda) v cc = 5 v, i ol = 3 ma 0.4 v l sdah high-level output leakage current (sda) v sda = 5.5 v 10 m a f scl clock frequency (scl) 100 400 khz t hd-dat data hold time see figure 24 0 0.9 m s t buf bus free time 1.3 m s t hd-sta start hold time 0.6 m s t low scl-low hold time 1.3 m s t high scl-high hold time 0.6 m s t su-sta start setup time 0.6 m s t su-dat data setup time 0.1 m s t r rise time (scl, sda ) 0.3 m s t f fall time (scl, sda) 0.3 m s t su-sto stop setup time 0.6 m s 8 submit documentation feedback copyright ? 2008, texas instruments incorporated product folder link(s): sn761640
pll and band switch rf agc (1) sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 v cc = 4.5 v to 5.5 v, t a = ? 20 c to 85 c (unless otherwise noted) parameter test conditions min typ max unit n divider ratio 15-bit frequency word 512 32767 f xtal crystal oscillator frequency r xtal = 25 ? to 300 ? 4 mhz z xtal crystal oscillator input impedance 1.6 2.4 k ? load = 10 pf/5.1 k ? , v cc = 5 v, v xlo xtalout output voltage 0.4 vp-p t a = 25 c v vtul tuning amplifier low-level output voltage r l = 20 k ? , vtu = 33 v 0.2 0.3 0.46 v i vtuoff tuning amplifier leakage current tuning amplifier = off, vtu = 33 v 10 m a i cp11 cp[2:0] = 011 600 i cp10 cp[2:0] = 010 350 i cp01 charge-pump current cp[2:0] = 001 140 m a i cp00 cp[2:0] = 000 70 i cp100 cp[2:0] = 100, mode = 1 900 v cp charge-pump output voltage pll locked 1.95 v i cpoff charge-pump leakage current v cp = 2 v, t a = 25 c ? 15 15 na i bs band switch driver output current (bs1 ? bs4) 10 ma v bs1 i bs = 10 ma 3 band switch driver output voltage (bs1 ? bs4) v v bs2 i bs = 10 ma, v cc = 5 v, t a = 25 c 3.5 3.7 band switch driver leakage current i bsoff v bs = 0 v 8 m a (bs1 ? bs4) i p5 band switch port sink current (p5/adc) ? 5 ma v p5on band switch port output voltage (p5/adc) i p5 = ? 2 ma, v cc = 5 v, t a = 25 c 0.6 v v cc = 5 v, t a = 25 c, measured in figure 25 reference measurement circuit at 50- ? system, if = 44 mhz, if filter characteristics: f peak = 44 mhz (unless otherwise noted) parameter test conditions min typ max unit i oagc0 atc = 0 300 na rf agc output source current i oagc1 atc = 1 9 m a i oagcsink rf agc peak sink current atc = 0 100 m a v oagch rfagcout output high voltage (max level) atc = 1 3.5 4 4.5 v v oagcl rfagcout output low voltage (min level) atc = 1 0.3 v i agcbuf rfagcbuf output current atc = 0 1.5 ma v oagcbfh rfagcbuf output high voltage (max level) atc = 1 3.5 4 4.5 v v oagcbfl rfagcbuf output low voltage (min level) atc = 1 0.3 v v agcsp00 atp[2:0] = 000 114 v agcsp01 atp[2:0] = 001 112 v agcsp02 atp[2:0] = 010 110 v agcsp03 start-point if output level atp[2:0] = 011 108 db m v v agcsp04 atp[2:0] = 100 106 v agcsp05 atp[2:0] = 101 104 v agcsp06 atp[2:0] = 110 102 (1) when aisl=1, rf agc function is not available at vhf-l band (output level is undefined). copyright ? 2008, texas instruments incorporated submit documentation feedback 9 product folder link(s): sn761640
mixer, oscillator, if amplifier (dif out) sn761640 sles237 ? october 2008 .............................................................................................................................................................................................. www.ti.com v cc = 5 v, t a = 25 c, measured in figure 25 reference measurement circuit at 50- ? system, if = 44 mhz, if filter characteristics: f peak = 44 mhz (unless otherwise noted) parameter test conditions typ unit g c1d f in = 57 mhz (1) 35 conversion gain (mixer-if amplifier), vhf-low db g c3d f in = 171 mhz (1) 35 g c4d f in = 177 mhz (1) 35 conversion gain (mixer-if amplifier), vhf-high db g c6d f in = 467 mhz (1) 35 g c7d f in = 473 mhz (1) 35 conversion gain (mixer-if amplifier), uhf db g c9d f in = 864 mhz (1) 35 nf 1d f in = 57 mhz 9 noise figure, vhf-low db nf 3d f in = 171 mhz 9 nf 4d f in = 177 mhz 9 noise figure, vhf-high db nf 6d f in = 467 mhz 10 nf 7d f in = 473 mhz 10 noise figure, uhf db nf 9d f in = 864 mhz 12 cm 1d f in = 57 mhz (2) 79 input voltage causing 1% cross-modulation distortion, db m v vhf-low cm 3d f in = 171 mhz (2) 79 cm 4d f in = 177 mhz (2) 79 input voltage causing 1% cross-modulation distortion, db m v vhf-high cm 6d f in = 467 mhz (2) 79 cm 7d f in = 473 mhz (2) 77 input voltage causing 1% cross-modulation distortion, uhf db m v cm 9d f in = 864 mhz (2) 77 v ifo1d f in = 57 mhz 117 if output voltage, vhf-low db m v v ifo3d f in = 171 mhz 117 v ifo4d f in = 177 mhz 117 if output voltage, vhf-high db m v v ifo6d f in = 467 mhz 117 v ifo7d f in = 473 mhz 117 if output voltage, uhf db m v v ifo9d f in = 864 mhz 117 plvl1d f in = 57 mhz (3) ? 90 phase noise, vhf-low dbc/hz plvl3d f in = 171 mhz (4) ? 85 plvl4d f in = 177 mhz (3) ? 85 phase noise, vhf-high dbc/hz plvl6d f in = 467 mhz (4) ? 77 plvl7d f in = 473 mhz (3) ? 80 phase noise, uhf dbc/hz plvl9d f in = 864 mhz (4) ? 77 (1) if = 44 mhz, rf input level = 70 db m v, differential output (2) f undes = f des 6 mhz, pin = 70 db m v, am 1 khz, 30%, des/cm = s/i = 46 db (3) offset = 1 khz, cp current = 350 m a, reference divider = 64 (4) offset = 1 khz, cp current = 900 m a, reference divider = 64 10 submit documentation feedback copyright ? 2008, texas instruments incorporated product folder link(s): sn761640
mixer, oscillator, if amplifier (aif out) sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 v cc = 5 v, t a = 25 c, measured in figure 25 reference measurement circuit at 50- ? system, if = 45.75 mhz, if filter characteristics: f peak = 44 mhz (unless otherwise noted) parameter test conditions typ unit g c1a f in = 55.25 mhz (1) 29 conversion gain (mixer-if amplifier), vhf-low db g c3a f in = 169.25 mhz (1) 29 g c4a f in = 175.25 mhz (1) 29 conversion gain (mixer-if amplifier), vhf-high db g c6a f in = 465.25 mhz (1) 29 g c7a f in = 471.25 mhz (1) 29 conversion gain (mixer-if amplifier), uhf db g c9a f in = 862.25 mhz (1) 29 nf 1a f in = 55.25 mhz 9 noise figure, vhf-low db nf 3a f in = 169.25 mhz 9 nf 4a f in = 175.25 mhz 9 noise figure, vhf-high db nf 6a f in = 465.25 mhz 10 nf 7a f in = 471.25 mhz 10 noise figure, uhf db nf 9a f in = 862.25 mhz 12 cm 1a f in = 55.25 mhz (2) 79 input voltage causing 1% cross-modulation distortion, db m v vhf-low cm 3a f in = 169.25 mhz (2) 79 cm 4a f in = 175.25 mhz (2) 79 input voltage causing 1% cross-modulation distortion, db m v vhf-high cm 6a f in = 465.25 mhz (2) 79 cm 7a f in = 471.25 mhz (2) 79 input voltage causing 1% cross-modulation distortion, uhf db m v cm 9a f in = 862.25 mhz (2) 77 v ifo1a f in = 55.25 mhz 117 if output voltage, vhf-low db m v v ifo3a f in = 169.25 mhz 117 v ifo4a f in = 175.25 mhz 117 if output voltage, vhf-high db m v v ifo6a f in = 465.25 mhz 117 v ifo7a f in = 471.25 mhz 117 if output voltage, uhf db m v v ifo9a f in = 862.25 mhz 117 plvl1a f in = 55.25 mhz (3) ? 95 phase noise, vhf-low dbc/hz plvl3a f in = 169.25 mhz (3) ? 95 plvl4a f in = 175.25 mhz (3) ? 90 phase noise, vhf-high dbc/hz plvl6a f in = 465.25 mhz (3) ? 90 plvl7a f in = 471.25 mhz (3) ? 85 phase noise, uhf dbc/hz plvl9a f in = 862.25 mhz (3) ? 90 (1) if = 44 mhz, rf input level = 70 db m v, differential output (2) f undes = f des 6 mhz, pin = 70 db m v, am 1 khz, 30%, des/cm = s/i = 46 db (3) offset = 10 khz, cp current = 70 m a, reference divider = 128 copyright ? 2008, texas instruments incorporated submit documentation feedback 11 product folder link(s): sn761640
if gain controlled amplifier sn761640 sles237 ? october 2008 .............................................................................................................................................................................................. www.ti.com v cc = 5 v, t a = 25 c, measured in figure 25 reference measurement circuit at 50- ? system, if = 44 mhz (unless otherwise noted) parameter test conditions min typ max unit i ifgca input current (if gca ctrl) v ifgca = 3 v 30 60 m a v ifgcamax maximum gain control voltage gain maximum 3 v cc v v ifgcamin minimum gain control voltage gain minimum 0 0.2 v g ifgcamax maximum gain v ifgca = 3 v 65 db g ifgcamin minimum gain v ifgca = 0 v ? 1 db gcr ifgca gain control range v ifgca = 0 v to 3 v 66 db single-ended output, v ifgcaout output voltage 2.1 vp-p v ifgca = 3 v nf ifgca noise figure v ifgca = 3 v 8.5 db f ifgcain1 = 43 mhz, f ifgcaiin2 = 44 mhz, im3 ifgca third order intermodulation distortion ? 50 dbc v ifgcaout = ? 2 dbm, v ifgca = 3 v iip 3ifgca input intercept point v ifgca = 0 v 11 dbm r ifgcain input resistance (if gca in1, if gca in2) 1 k ? r ifgcaout output resistance (if gca out1, if gca out2) 25 ? 12 submit documentation feedback copyright ? 2008, texas instruments incorporated product folder link(s): sn761640
functional description i 2 c bus mode i 2 c write mode (r/ w = 0) sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 table 1. write data format msb lsb address byte (adb) 1 1 0 0 0 ma1 ma0 r/ w = 0 a (1) divider byte 1 (db1) 0 n14 n13 n12 n11 n10 n9 n8 a (1) divider byte 2 (db2) n7 n6 n5 n4 n3 n2 n1 n0 a (1) control byte 1 (cb1) 1 0 atp2 atp1 atp0 rs2 rs1 rs0 a (1) band switch byte (bb) cp1 cp0 aisl p5 bs4 bs3 bs2 bs1 a (1) control byte 2 (cb2) 1 1 atc mode t3/disgca t2/ifda t1/cp2 t0/xlo a (1) (1) a : acknowledge table 2. write data symbol description symbol description default ma[1:0] address-set bits (see table 3 ) n[14:0] programmable counter set bits n14 = n13 = n12 = ... = n0 = 0 n = n14 2 14 + n13 2 13 + ... + n1 2 + n0 atp[2:0] rf agc start-point control bits (see table 4 ) atp[2:0] = 000 rs[2:0] reference divider ratio-selection bits (see table 5 ) rs[2:0] = 000 cp[1:0] charge-pump current-set bit (see table 6 ) cp[1:0] = 00 aisl rf agc detector input selection bit aisl = 0 aisl = 0: if amplifier aisl = 1: mixer output p5 port output/adc input control bit p5 = 0 p5 = 0: adc input p5 = 1: tr = on bs[4:1] band switch control bits bsn = 0 bsn = 0: tr = off bsn = 1: tr = on band selection by bs[1:2] bs1 bs2 1 0 vhf-lo 0 1 vhf-hi 0 0 uhf 1 1 standby mode/stop mop function (xtalout is available in standby mode) atc rf agc current-set bit atc = 0 atc = 0: current = 300 na atc = 1: current = 9 m a mode mode = 0 : ifgca enabled, difout1, 2 selected mode = 0 t3/disgca t3/disgca, t2/ifda, t1/cp2, t0/xlo are test bits and xtalout control bit (see t[3:0] = 0000 t2/ifda table 7 ) t1/cp2 mode = 1 t0/xlo t3/disgca = 0 : if gca enabled t3/disgca = 1 : if gca disabled t2/ifda = 0 : difout1, 2 selected t2/ifda = 1 : aifout selected t1/cp2 : lcp control bit, see table 6 t0/xlo = 0 : xtalout enabled t0/xlo = 1 : xtalout disabled copyright ? 2008, texas instruments incorporated submit documentation feedback 13 product folder link(s): sn761640
sn761640 sles237 ? october 2008 .............................................................................................................................................................................................. www.ti.com table 3. address selection ma1 ma0 voltage applied on as input 0 0 0 v to 0.1 v cc (low) 0 1 open, or 0.2 v cc to 0.3 v cc (mid2) 1 0 0.4 v cc to 0.6 v cc (mid1) 1 1 0.9 v cc to v cc (high) table 4. rf agc start point (1) atp2 atp1 atp0 ifout level (db m v) 0 0 0 114 0 0 1 112 0 1 0 110 0 1 1 108 1 0 0 106 1 0 1 104 1 1 0 102 1 1 1 disabled (1) when aisl=1, rf agc function is not available at vhf-l band (output level is undefined). table 5. reference divider ratio rs2 rs1 rs0 reference divider ratio 0 0 0 24 0 0 1 28 0 1 0 32 0 1 1 64 1 0 0 128 1 x 1 80 table 6. charge-pump current charge pump current mode cp2 cp1 cp0 ( m a) x 0 0 0 70 x 0 0 1 140 x 0 1 0 350 x 0 1 1 600 1 1 0 0 900 14 submit documentation feedback copyright ? 2008, texas instruments incorporated product folder link(s): sn761640
example i 2 c data write sequences i 2 c read mode (r/ w = 1) sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 table 7. test bits/xtalout control (1) xtalout mode t3/disgca t2/ifda t1/cp2 t0/xlo device operation 4-mhz output 0 0 0 0 0 normal operation enabled 0 0 0 0 1 normal operation disabled 1 x x x 0 normal operation enabled 1 x x x 1 normal operation disabled 0 x 1 x x test mode not available 0 1 x x x test mode not available (1) rfagc and xtalout are not available in test mode. telegram examples: start-adb-db1-db2-cb1-bb-cb2-stop start-adb-db1-db2-stop start-adb-cb1-bb-cb2-stop start-adb-cb1-bb-stop start-adb-cb2-stop abbreviations: adb: address byte bb: band switch byte cb1: control byte 1 cb2: control byte 2 db1: divider byte 1 db2: divider byte 2 start: start condition stop: stop condition table 8. read data format msb lsb address byte (adb) 1 1 0 0 0 ma1 ma0 r/ w = 1 a (1) status byte (sb) por fl 1 1 x a2 a1 a0 ? (1) a : acknowledge table 9. read data symbol description symbol description default ma[1:0] address set bits (see table 3 ) por power-on-reset flag por = 1 por set: power on por reset: end-of-data transmission procedure fl in-lock flag pll locked (fl = 1), unlocked (fl = 0) a[2:0] digital data of adc (see table 10 ) bit p5 must be set to 0. copyright ? 2008, texas instruments incorporated submit documentation feedback 15 product folder link(s): sn761640
sn761640 sles237 ? october 2008 .............................................................................................................................................................................................. www.ti.com table 10. adc level (1) a2 a1 a0 voltage applied on adc input 1 0 0 0.6 v cc to v cc 0 1 1 0.45 v cc to 0.6 v cc 0 1 0 0.3 v cc to 0.45 v cc 0 0 1 0.15 v cc to 0.3 v cc 0 0 0 0 v to 0.15 v cc (1) accuracy is 0.03 v cc . figure 24. i 2 c timing chart 16 submit documentation feedback copyright ? 2008, texas instruments incorporated product folder link(s): sn761640 t hd -dat sda scl t buf t su -sta t hd -sta t su -dat t su -sto t low t r t high t f
application information sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 a. to prevent abnormal oscillation, connect c16, which does not affect a pll. b. this application information is advisory and performance-check is required at actual application circuits. ti assumes no responsibility for the consequences of use of this circuit, such as an infringement of intellectual property rights or other rights, including patents, of third parties. figure 25. reference measurement circuit copyright ? 2008, texas instruments incorporated submit documentation feedback 17 product folder link(s): sn761640 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 26 27 28 29 30 44 43 42 41 40 39 38 37 36 35 34 33 32 31 vlo osc b vlo osc c vhi osc c osc gnd vhi osc b uhf osc b1 uhf osc c1uhf osc c2 uhf osc b2 if gnd vtu vcc if gca ctrl cp mix out1 mix out2 if gca in1 bus gnd scl sda rf agc out rf agc buf bs1 bs2 vhi rf in rf gnd bs4 bs3 aif out dif out1 uhf rf in2 uhf rf in1 vlo rf in if in if gca in2 if gca gnd vcc xtal out scl sda as bs1 bs2 bs3 rf agc out bs4 vlo rf in vhi rf in uhf rf in1 c12 c5 r3 c6c7 c8 r4 l3 l4 vc3 c14 c13 r8 r9 r10 c16 aif out c20 c21 r15 c30 c61 c18 r12 vtu c19 r11 c17 c59c60 x1 c58 r47 c57 r36 c37 r37 c40 c39 r38 c42 c47 l6 l5 c49r42 c51 c52 r48r49 r50 c62c63 20 21 22 25 24 23 xtal out xtal2 xtal1 if gca out2if gca out1 as c64 c28 c26 c32 if gca out1 if gca ctrl if gca in1 c56 r28 r31 c34 p5/adc p5/adc r23 r1 c1c2 c9 c10 vc1 l1 r5 c15 c3 c4 vc2 c11 l2 r7 r6 r2 vc4 dif out c23 dif out2 rf agc buf r21 r17 r19 r46 r24 r25 r30 r34 l11 l10 c65 (see note a)
sn761640 sles237 ? october 2008 .............................................................................................................................................................................................. www.ti.com component values for measurement circuit parts name value parts name value c1 (vlo osc b) 1 pf l1 (vlo osc) 3.0 mm, 7t, wire 0.32 mm c2 (vlo osc c) 2 pf l2 (vhi osc) 2.0 mm, 3t, wire 0.4 mm c3 (vhi osc b) 7 pf l3 (uhf osc) 1.8 mm, 3t, wire 0.4 mm c4 (vhi osc c) 5 pf l4 (uhf osc) 1.8 mm, 3t, wire 0.4 mm c5 (uhf oscb1) 1.5 pf l5 (mix out) 680 nh (lk1608r68k-t) c6 (uhf oscc1) 1 pf l6 (mix out) 680 nh (lk1608r68k-t) c7 (uhf oscc2) 1 pf l10 (mix out) short c8 (uhf oscb2) 1.5 pf l11 (mix out) short c9 (vlo osc) open r1(vlo osc b) 0 c10(vlo osc) 43 pf r2 (vhi osc b) 4.7 ? c11 (vhi osc) 51 pf r3 (uhf osc b1) 4.7 ? c12 (vhi osc) 0.5 pf r4 (uhf osc b2) 0 c13 (uhf osc) 10 pf r5 (vlo osc) 3.3 k ? c14 (uhf osc) 100 pf r6 (vhi osc) 3.3 k ? c15 (vtu) 2.2 nf/50 v r7 (vhi osc) 3.3 k ? c16 (cp) 150 pf/50 v r8 (uhf osc) 1 k ? c17 (vtu) 2.2 nf/50 v r9 (uhf osc) 2.2 k c18(cp) 0.01 u/50 v r10 (vtu) 3 k ? c19(cp) 22 pf/50 v r11 (vtu) 20 k ? c20 (aif out) 2.2 nf r12 (cp) 47 k ? c21 (dif out1) 2.2 nf r15 (dif out1) 200 ? c23 (dif out2) 2.2 nf r17 (dif out2) 200 ? c26 (if gca in1) 2.2 nf r19 (dif out2) 50 ? c28 (if gca in2) 2.2 nf r21 (dif out1) 0 c30 (vcc) 0.1 uf r23 (p5/adc) open c32 (if gca out1) 2.2 nf r24 (if gca in1) (50 ? ) c34 (if gca out2) 2.2 nf r25 (if gca in2) 0 c37 (uhf rf in1) 2.2 nf r28 (if gca out1) 200 ? c39 (uhf rfin2) 2.2 nf r30 (if gca out1) 50 ? c40 (vhi rf in) 2.2 nf r31 (if gca out2) 200 ? c42 (vlo rf in) 2.2 nf r34 (if gca out2) 0 c47 (mix out) 6 pf r36 (uhf rf in1) (50 ? ) c49 (mix out) 2.2 nf r37 (vhi rf in) (50 ? ) c51 (rf agc out) 0.15 uf r38 (vlo rf in) (50 ? ) c52 (rf agc buf) open r42 (mix out) 0 c56 (ifgca ctrl) 0.1 m f r46 (ifgca ctrl) 0 c57 (xtal out) 0.01 uf r47 (xtal out) 5.1 k ? c58 (xtal out) 10 pf r48 (sda) 330 ? c59(xtal) 27 pf r49 (scl) 330 ? c60 (xtal) 27 pf r50 (as) open c61 (vcc) 2.2 nf vc1 (vlo osc) ma2s374 c62 (sda) open vc2 (vhi osc) ma2s374 c63 (scl) open vc3 (uhf osc) ma2s372 c64 (as) open vc4 (vhi osc) ma2s372 c65 (as) 22 pf x1 4-mhz crystal 18 submit documentation feedback copyright ? 2008, texas instruments incorporated product folder link(s): sn761640
application information (continued) test circuits sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 figure 26. vhf-conversion gain-measurement circuit (at difout) figure 27. vhf-conversion gain measurement circuit (at aifout) figure 28. uhf-conversion gain-measurement circuit (at difout) figure 29. uhf-conversion gain measurement circuit (at aifout) copyright ? 2008, texas instruments incorporated submit documentation feedback 19 product folder link(s): sn761640 sg spectrum analyzer 50 w dut 50 w 250 w 200 k w 50 w v in v out uhf rf in1 v diff out dif out1dif out2 uhf rf in2 gv = 20log(v diff/v ) = 20log(v /v ) + 6 + 14 out in out in sg spectrum analyzer 50 w dut 50 w 50 w v in v out uhfrf in1 aifout uhfrf in2 gv = 20log(v /v ) out in sg spectrum analyzer 50 w dut 50 w 250 w 200 w 50 w v in v out vlo rf in1(vhi rf in) v diff out dif out1dif out2 gv = 20log(v diff/v ) = 20log(v /v ) + 6 + 14 out in out in sg spectrum analyzer 50 w dut 50 w 50 w v in v out vlo rf in1(vhi rf in) aifout gv = 20log(v /v ) out in
sn761640 sles237 ? october 2008 .............................................................................................................................................................................................. www.ti.com figure 30. if gca gain measurement circuit figure 31. noise-figure measurement circuit figure 32. 1% cross-modulation distortion measurement circuit 20 submit documentation feedback copyright ? 2008, texas instruments incorporated product folder link(s): sn761640 noise source dut nf meter modulation analyzer dut mix pad f : p = 70 db v des m f 6 mhz am 30%, 1 khz des signal generator signal generator sg spectrum analyzer 50 w dut 50 w 250 w 200 w 50 w v in v out ifgcain1 v diff out ifgcaout1 ifgcaout2 gv = 20log(v diff/v ) = 20log(v /v ) + 6 + 14 out in out in ifgcain2 ifgcactral dc power source
typical characteristics band switch driver output voltage (bs1 ? bs4) s-parameter sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 figure 33. band switch driver output voltage figure 34. vlo rfin, vhi rfin copyright ? 2008, texas instruments incorporated submit documentation feedback 21 product folder link(s): sn761640 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 2 4 6 8 10 12 14 16 18 20 band switch current C ma band switch output voltage C v v = 5.5 v cc v = 5.0 v cc v = 4.5 v cc bs output current vs output voltage 40mhz 500mhz 40 z mh 500 z mh
sn761640 sles237 ? october 2008 .............................................................................................................................................................................................. www.ti.com typical characteristics (continued) figure 35. uhf rfin figure 36. difout 22 submit documentation feedback copyright ? 2008, texas instruments incorporated product folder link(s): sn761640 500mhz 60 z mh 30 z mh 40mhz 500mhz 350 z mh 900 z mh
sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 typical characteristics (continued) figure 37. aifout figure 38. if gca in copyright ? 2008, texas instruments incorporated submit documentation feedback 23 product folder link(s): sn761640 500mhz 60 z mh 30 z mh 40mhz 500mhz 20 z mh 70 z mh
sn761640 sles237 ? october 2008 .............................................................................................................................................................................................. www.ti.com typical characteristics (continued) figure 39. if gcaout figure 40. if gca gain vs control voltage 1 24 submit documentation feedback copyright ? 2008, texas instruments incorporated product folder link(s): sn761640 40mhz 500mhz 20 z mh 70 z mh C 10 0 10 20 30 40 50 60 70 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 if gca ctrl voltage (v) gain (db) v = 4.5 v cc v = 5.5 v cc v = 5.0 v cc
sn761640 www.ti.com .............................................................................................................................................................................................. sles237 ? october 2008 typical characteristics (continued) figure 41. if gca gain vs control voltage 2 copyright ? 2008, texas instruments incorporated submit documentation feedback 25 product folder link(s): sn761640 -10 0 10 20 30 40 50 60 70 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 if gca ctrl voltage (v) gain (db) 85 c 25 c C20 c
packaging information orderable device status (1) package type package drawing pins package qty eco plan (2) lead/ball finish msl peak temp (3) SN761640DBTR active tssop dbt 44 2000 green (rohs & no sb/br) cu nipdau level-2-260c-1 year (1) the marketing status values are defined as follows: active: product device recommended for new designs. lifebuy: ti has announced that the device will be discontinued, and a lifetime-buy period is in effect. nrnd: not recommended for new designs. device is in production to support existing customers, but ti does not recommend using this part in a new design. preview: device has been announced but is not in production. samples may or may not be available. obsolete: ti has discontinued the production of the device. (2) eco plan - the planned eco-friendly classification: pb-free (rohs), pb-free (rohs exempt), or green (rohs & no sb/br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. tbd: the pb-free/green conversion plan has not been defined. pb-free (rohs): ti's terms "lead-free" or "pb-free" mean semiconductor products that are compatible with the current rohs requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. where designed to be soldered at high temperatures, ti pb-free products are suitable for use in specified lead-free processes. pb-free (rohs exempt): this component has a rohs exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. the component is otherwise considered pb-free (rohs compatible) as defined above. green (rohs & no sb/br): ti defines "green" to mean pb-free (rohs compatible), and free of bromine (br) and antimony (sb) based flame retardants (br or sb do not exceed 0.1% by weight in homogeneous material) (3) msl, peak temp. -- the moisture sensitivity level rating according to the jedec industry standard classifications, and peak solder temperature. important information and disclaimer: the information provided on this page represents ti's knowledge and belief as of the date that it is provided. ti bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. efforts are underway to better integrate information from third parties. ti has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. ti and ti suppliers consider certain information to be proprietary, and thus cas numbers and other limited information may not be available for release. in no event shall ti's liability arising out of such information exceed the total purchase price of the ti part(s) at issue in this document sold by ti to customer on an annual basis. package option addendum www.ti.com 23-oct-2008 addendum-page 1
tape and reel information *all dimensions are nominal device package type package drawing pins spq reel diameter (mm) reel width w1 (mm) a0 (mm) b0 (mm) k0 (mm) p1 (mm) w (mm) pin1 quadrant SN761640DBTR tssop dbt 44 2000 330.0 24.4 6.8 11.7 1.6 12.0 24.0 q1 SN761640DBTR tssop dbt 44 2000 330.0 24.4 6.8 11.7 1.6 12.0 24.0 q1 package materials information www.ti.com 20-oct-2010 pack materials-page 1
*all dimensions are nominal device package type package drawing pins spq length (mm) width (mm) height (mm) SN761640DBTR tssop dbt 44 2000 346.0 346.0 41.0 SN761640DBTR tssop dbt 44 2000 346.0 346.0 41.0 package materials information www.ti.com 20-oct-2010 pack materials-page 2

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