1/6 tda7332 september 2004 1features high performance, stable 57khz filter high selectivity flat group delay high performance limiter very few external components 4.332mhz clock oscillator (8.664mhz optional) 2description the tda7332 is an rds filter, realized in switched capacitor technique. the 4 biquad stage architecture is working with 4.332mhz clock. optionally a 8.664mhz xtal can be used. the filter has a center frequency of 57khz and a bandwidth of 3khz. input 2nd order antialiasing fil- ter and output smoothing filter are provided. rds filter block diagram rev. 2 fi gure 1 . p ac k age table 1. order codes part number package tda7332d so14 TDA7332D013TR tape & reel tda7332die1 chip on wafer so14 obsolete product(s) - obsolete product(s)
tda7332 2/6 figure 2. absolute maximum ratings table 2. thermal data figure 3. pin connection (top view) figure 4. bonding pad locations (top view) table 3. electrical characteristcs (v cc = 5v, t amb = 25c; f osc = 4.332mhz; v in = 20mv rms unless symbol parameter value unit v s supply voltage 7 v t op operating temperature range -40 to 85 c t stg storage temperature -40 to 150 c symbol parameter value unit r th j-case thermal resistance junction-case 200 c obsolete product(s) - obsolete product(s)
3/6 tda7332 otherwise specified) crystal type = euro quartz note (1): the phase non linearity is defined as: dph = | -2 ff2 + ff1 + ff3 | where ffx is the input-output phase difference at the frequency fx (x = 1,2,3) table 4. note (2): the 3th harmonic (57khz) at the output (pin12) must be less than -40db in respect to the input signal plus gain. symbol parameter test condition min. typ. max. unit supply section v cc supply voltage 4.5 5 5.5 v i s supply current 6 9 14 ma filter f c center frequency 56.5 57 57.5 khz bw 3db bandwidth 2.5 3 3.5 khz g gain f = 57khz 18 20 22 db a attenuation ? f = 4khz 18 22 db f = 38khz; v i = 500mvrms 50 80 db f = 67khz; v i = 250mvrms 35 50 db ? ph phase non linearity a (see note1) 0.5 5 deg b (see note1) 1 7.5 deg c (see note1) 2 10 deg r i input impedance 100 160 200 k ? s/n signal to noise ratio v i = 3mvrms 30 40 db v i input signal f = 19khz; t3 < ?40db (see note2) 1 vrms f = 57khz (rds + ari) 50 mvrms r l load impedance pin 12 100 k ? limiter ra resistance pin 8-12 15 21 28 k ? v ol comp. output low i o = +0.5ma 1v v oh comp. output high i o = ?0.5ma 4 v duty cycle v i = 1mvrms 50 % oscillator f osc oscillator frequency f sel = open 4.332 mhz f sel = closed to ground 8.664 mhz output amplitude 4.5 v pp v cll clock input level low 1 v v olh clock input level high 4 v measure f1 (khz) f2 (khz) f3 (khz) ? ph max a 56.5 57 57.5 <5 b565758<7.5 c 55.5 57 58.5 <10 obsolete product(s) - obsolete product(s)
tda7332 4/6 figure 5. so14 mechanical data & package dimensions outline and mechanical data dim. mm inch min. typ. max. min. typ. max. a 1.35 1.75 0.053 0.069 a1 0.10 0.30 0.004 0.012 a2 1.10 1.65 0.043 0.065 b 0.33 0.51 0.013 0.020 c 0.19 0.25 0.007 0.01 d (1) 8.55 8.75 0.337 0.344 e 3.80 4.0 0.150 0.157 e 1.27 0.050 h 5.8 6.20 0.228 0.244 h 0.25 0.50 0.01 0.02 l 0.40 1.27 0.016 0.050 k 0? (min.), 8? (max.) ddd 0.10 0.004 (1) ?d? dimension does not include mold flash, protusions or gate burrs. mold flash, protusions or gate burrs shall not exceed 0.15mm per side. so14 0016019 d obsolete product(s) - obsolete product(s)
5/6 tda7332 table 5. revision history date revision description of changes september 2003 1 first issue september 2004 2 deleted dip 14 package and part number tda7332. aligned the graphic style to be compliant with the new ?corporate technical pubblications design guide? obsolete product(s) - obsolete product(s)
information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the co nsequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publicati on are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics prod ucts are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectro nics. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners ? 2004 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com 6/6 tda7332 obsolete product(s) - obsolete product(s)
|
