v b out v reg in gnd1 sda b out b in c2 GA3204 c1 80n 81n 92n 81n 45k5 r3 r4 r6 r5 control 10k rect. v b 3k3 reg. 48k 48k 11k 13k1 12k 1 x - b - a - c 24 db / oct band split filter high frequency expander/compressor low frequency expander/compressor r agc_in r h r l r8 r7 c4 c3 92k 92k 185k 185k 460k 184k 8n5 c8 r2 gp523 7n4 c5 c6 8n slow average detector fast average detector 1m 2m 83n c14 ms gnd2 r1 64k 10 5 2 3 4 1 7 6 8 9 42k8 85k6 c7 0 14 all resistors in ohms, all capacitors in farads, unless otherwise stated. features ? dynameq ? ii flexibility ? six programmable parameters ? four memories ? 24db/oct state variable filter ? twin average detectors ? handles high input levels ? drives class d integrated receivers thinstax ? packaging hybrid typical dimensions: 0.200 x 0.115 x 0.060in. (5.08 x 2.92 x 1.52mm) preliminary data sheet multimemory programmable dynameq ? ii - GA3204 description the GA3204 programmable hybrid is composed of a dynameq ? ii wide dynamic range compression signal processor and the gp523 controller memory chip. the hybrid incorporates 24db/oct filtering. the gain and frequency response are dependent on the users environment. the twin average detector circuit is optimized for sound quality during normal listening without sacrificing comfort during sudden loud sounds. the GA3204 features six programmable parameters: independent compression ratio adjustment in the high and low frequency channels, vc adjustment, threshold adjustment, crossover frequency adjustment and mpo adjustment. four independent memories add to hybrid flexibility. the output stage is designed as a preamplifier for the class d integrated receiver. the GA3204 hybrid code programmed into gp523 is 1. block diagram document no. 522 - 17 - 03 gennum corporation p.o. box 489, stn. a, burlington, ontario, canada l7r 3y3 tel. +1 (905) 632-2996 web site: www.gennum.com e-mail: hipinfo@gennum.com revision date: june 2000 GA3204
2 522 - 17 - 03 GA3204 gennum corporation electrical characteristics absolute maximum ratings parameter value supply voltage 2vdc power dissipation 25 mw operating temperature range -10 c to 40 c storage temperature range -20 c to 70 c pad connections all conditions and parameters remain as shown in the test circuit unless otherwise specified in the conditions column. conditions: supply voltage v b = 1.3 v, frequency = 1 khz, temperature = 25 c. the programmable parameters are adjusted to the following set values unless otherwise specified. (mpo) r5 - tap 0; (th) r2 - tap 15; (fc) r1 - tap 7; (hp) r6 - tap 0; (lp) r3 - tap 0; (vc) r4 - tap 15, r7 - tap 23; r8 - tap 0. caution electrostatic sensitive devices do not open packages or handle except at a static-free workstation 1 2 3 4 5 v reg in gnd2 gnd1 ms 10 9 8 7 6 sda b in b out v b out r e t e m a r a pl o b m y ss n o i t i d n o cn i mp y tx a ms t i n u t n e r r u c d i r b y h i p m a -5 9 30 8 5a e g a t l o v m u m i n i mb v1 . 1--v n o i t r o t s i d c i n o m r a h l a t o td h tv n i z h k 1 t a v b d 0 4 - =-6 . 01% t u p n i e l b a w o l l a m u m i x a m h t i w d h td h t m v n i r , v b d 3 2 - = c v k 7 4 = w -2 0 1% e s i o n d e r r e f e r t u p n in r ir e t l i f d e t h g i e w a-3-v s m r n i a g m e t s y s l a t o ta v v n i v b d 0 9 - =4 47 40 5b d e g a t l o v r o t a l u g e rv g e r i d a o l a 0 3 =0 9 80 3 90 0 0 1v m c g a d l o h s e r h t r e w o lh t o l 5 . 8 8 -5 . 4 8 -5 . 0 8 -v b d d l o h s e r h t r e p p uh t i h 6 3 -2 3 -8 2 -v b d e g n a r n i a g n o i s s e r p m o c d a v b d 0 9 - ( n i a g n i v b d 0 3 - ( n i a g - ) n i )5 . 6 35 . 9 35 . 2 4b d n o i s s e r p m o c n i n i a g m e t s y sa 0 6 v n i v b d 0 6 - =6 29 22 3b d o i t a r n o i s s e r p m o c m u m i n i mp m c 1 : 1 v n i ; v b d 0 4 - o t v b d 0 6 - , z h k 3 = 5 1 p a t - 6 r ; 5 1 p a t - 3 r 9 . 00 . 11 . 1o i t a r o i t a r n o i s s e r p m o c m u m i x a mp m c 1 : 4 v n i ; v b d 0 4 - o t v b d 0 6 - , z h k 3 = 0 p a t - 6 r ; 0 p a t - 3 r 6 . 30 . 43 . 4o i t a r e m i t r o t c e t e d e g a r e v a t s a f t n a t s n o c t t s a f -8- s m e m i t r o t c e t e d e g a r e v a w o l s t n a t s n o c t w o l s -0 8 1-s m r e t l i f y c n e u q e r f r e v o s s o r c m u m i x a m? _ cx a m - 1 r0 p a t39 . 3- z h k y c n e u q e r f r e v o s s o r c l a n i m o n? _ cm o n r1 7 p a t -5 . 19 . 13 . 2z h k y c n e u q e r f r e v o s s o r c m u m i n i m? _ cn i m - 1 r5 1 p a t-9 . 04 . 1z h k e t a r f f o l l o r r e t l i f -4 2- t c o / b d b d n a a e g a t s ) b ( n i a g p o o l n e p oa l ob _ -2 5- b d ) a ( e c n a d e p m i t u p n ir n i 86 . 0 12 1k w e g a t s t u p t u o n i a g e g a t sa c v n i v b d 0 9 - =791 1b d l e v e l t u p t u o m u m i x a mo p mv n i r , v b d 5 2 - = t x e c v k 1 2 2 =0 2 -8 1 -6 1 -v b d e g n a r o p m d o p m r5 r , 0 p a t o t 5 1 p a t - t x e c v k 1 2 2 =6 . 1 16 . 3 16 . 5 1b d e c n a t s i s e r t u p t u or t u o -4 2-k w
3 522 - 17 - 03 GA3204 gennum corporation fig. 1 test circuit 50k 2 2 3k9 r vc v b 116k c2 GA3204 c1 80n 81n 92n 81n r3 r4 r6 r5 control 10k rect. v b 3k3 reg. 48k 48k 11k 13k1 12k 1 x - b - a - c 24 db / oct band split filter high frequency expander/compressor low frequency expander/compressor r agc_in r h r l r8 r7 c4 c3 8n5 c8 r2 gp523 7n4 c5 c6 8n slow average detector fast average detector 1m 2m 83n c14 r1 10 5 2 3 4 1 7 6 8 9 42k8 85k6 c7 0 14 45k5 92k 92k 185k 185k 460k 184k 64k all resistors in ohms, all capacitors in farads unless otherwise stated. fig. 2 typical application circuit v b r vc 100k w log v b any knowles or microtronic microphone any knowles class d integrated receiver 2 2 c2 GA3204 c1 80n 81n 92n 81n r3 r4 r6 r5 control 10k rect. v b 3k3 reg. 48k 48k 11k 13k1 12k 1 x - b - a - c 24 db / oct band split filter high frequency expander/compressor low frequency expander / compressor r agc_in r h r l r8 r7 c4 c3 8n5 c8 r2 gp523 7n4 c5 c6 8n slow average detector fast average detector 1m 2m 83n c14 r1 10 5 2 3 4 1 7 6 8 9 42k8 85k6 c7 0 14 45k5 92k 92k 185k 185k 460k 184k 64k all resistors in ohms, all capacitors in farads, unless otherwise stated.
4 522 - 17 - 03 GA3204 gennum corporation 2 2 v b = 1.3v 50k to programmer pink noise generator v in = -80dbv c2 GA3204 c1 80n 81n 92n 81n r3 r4 r6 r5 control 10k rect. v b 3k3 reg. 48k 48k 11k 13k1 12k 1 x - b - a - c 24 db / oct band split filter high frequency expander/compressor low frequency expander/compressor r agc _in r h r l r8 r7 c4 c3 8n5 c8 r2 gp523 7n4 c5 c6 8n slow average detector fast average detector 1m 2m 83n c14 r1 10 5 2 3 4 1 7 6 8 9 42k8 85k6 c7 0 14 3k9 45k5 92k 92k 185k 185k 460k 184k 64k all resistors in ohms, all capacitors in farads, unless otherwise stated. fig. 3 characterization circuit (used to generate typical curves) fig. 4 typical assembly diagram ms gnd1 gnd2 in v reg 5 4 3 2 1 out v b b out b in sda 6 7 8 9 10 battery + microphone + receiver 2 2 + - to programmer table of defaults r1 - tap 7 r5 - tap 0 r2 - tap 15 r6 - tap 0 r3 - tap 0 r7 - tap 7 r4 - tap 13 r8 - tap 0
5 522 - 17 - 03 GA3204 gennum corporation -90 -80 -70 -60 -50 -40 -30 -20 -100 -90 -80 -70 -60 -50 -40 -30 -20 input level (dbv) output level (dbv) fig. 7 i/o transfer function for different compression ratios (low frequency channel) r3 - tap 0 r3 - tap 15 ?= 1 khz r1 - tap 0 0 4 8 12 16 20 24 28 32 36 40 44 48 50 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 gain (db) r6 resistor taps (tap 0 - 0k w , tap 15 - 185k w ) fig. 6 high frequency gain (compression ratio adjustment) v in = -80dbv -90 -80 -70 -60 -50 -40 -30 -20 -100 -90 -80 -70 -60 -50 -40 -30 -20 input level (dbv) output level (dbv) fig. 5 i/o transfer function for different compression ratios (high frequency channel) r6 - tap 0 r6 - tap 15 ?= 4 khz r1 - tap 15 0 4 8 12 16 20 24 28 32 36 40 44 48 50 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 gain (db) r3 resistor taps (tap 0 - 0k w , tap 15 - 185k w ) fig. 8 low frequency gain (compression ratio adjustment) v in = -80dbv typical performance curves 100 1k 10k 0 10 20 30 40 50 gain (db) frequency (hz) fig. 10 frequency response for different crossover frequency steps 20 20k r1 - tap 15 r1 - tap 0 v in = -80dbv r6 - tap 0 0 10 20 30 40 50 100 1k 10k gain (db) fig. 9 frequency response for different crossover frequency steps frequency (hz) 20 20k v in = -80dbv r3 - tap 0 r1 - tap 0 r1 - tap 15
6 522 - 17 - 03 GA3204 gennum corporation -50 -40 -30 -20 -10 -50 -40 -30 -20 output level (dbv) input level (dbv) fig. 15 i/o transfer function for different mpo steps r5 - tap 0 r5 - tap 15 -40 -38 -36 -34 -32 -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 output level (dbv) r5 resistor taps (tap 0 - 7.3k w , tap 15 - 92k w ) fig. 16 mpo adjustment 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 500 10k 1k crossover frequency (hz) r1 resistor taps (tap 0 - 0k w , tap 15 - 64k w ) fig. 12 crossover frequency adjustment v in = -80dbv 0 10 20 30 40 50 100 1k 10k 20 20k gain (db) frequency (hz) fig. 11 crossover frequency representation v in = -80dbv r6 - tap 0 r1 - tap 13 r3 - tap 0 r1 - tap 13 -70 -60 -50 -40 -30 -20 -100 -90 -80 -70 -60 -50 -40 output level (dbv) input level (dbv) fig. 13 i/o transfer function for different thresholds r2-tap 0 ?1khz r2-tap 15 r6-tap 0 r3-tap 0 -90 -86 -82 -78 -74 -70 -66 -62 -58 -54 -50 -46 -42 -40 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 r2 resistor taps (tap 0 - 0k w , tap 15 - 45.5k w ) fig. 14 threshold adjustment output threshold level (dbv)
7 522 - 17 - 03 GA3204 gennum corporation 0.1 1 10 0.1k 10k thd & noise (%) frequency (hz) fig. 17 thd and noise vs frequency 1.0k v in = -40dbv r4 - tap 13 r7 - tap 7 0.1 1 10 -80 -70 -60 -50 -40 -30 -20 thd & noise (%) input level (dbv) fig 18 thd and noise vs input level ?= 1 khz r4 - tap 13 r7 - tap 7 0.1 1 10 10k 100k imd (%) frequency (hz) fig. 19 intermodulation distortion (ccif) vs frequency 3k v in = -40dbv ? = 200hz r4 - tap 13 r7 - tap 7 0.01 0.1 1 10 -80 -70 -60 -50 -40 -30 -20 imd (%) input level (dbv) fig. 20 intermodulation distortion (ccif) vs input level ?= 4khz ? = 200hz r4 - tap 13 r7 - tap 7 10 20 30 40 50 60 100 1k 10k 20k 20 gain (db) frequency (hz) fig. 21 frequency response for different feedback resistor values r = 100k w r = 200k w r = 50k w r = 25k w r = 10k w
0.200 (5.08) 0.115 (2.92) 0.065 max (1.65) sda bin bout vb out 1 2 3 4 5 vreg in gnd2 gnd1 ms 10 9 8 7 6 GA3204 xxxxxx document identification: preliminary data sheet the product is in a preproduction phase and specifications are subject to change without notice. gennum corporation assumes no responsibility for the use of any circuits described herein and makes no representations that the y are free from patent infringement. ? copyright april 1999 gennum corporation. all rights reserved. printed in canada. gennum corporation mailing address: p.o. box 489, stn. a, burlington, ontario, canada l7r 3y3 tel. +1 (905) 632-2996 fax +1 (905) 632-2814 shipping address: 970 fraser drive, burlington, ontario, canada l7l 5p5 gennum japan corporation c-101, miyamae village, 2-10-42 miyamae, suginami-ku, tokyo 168-0081, japan tel. +81 (3) 3334-7700 fax: +81 (3) 3247-8839 package dimensions dimensions are in inches. dimensions in parenthesis are in millimetres converted from inches and include minor rounding errors. 1.0000 inches = 25.400 mm. dimension tolerances 0.003 ( 0.08) unless otherwise stated. minimum pad sizes 0.0285 x 0.0400 (0.724 x 1.016). xxxxxx - work order number. this hybrid is designed for either point-to-point manual soldering or it can be reflowed according to gennums recommended reflow process (information note 521-45). revision notes: changes to conditions and tap values in the electrical characteristics table. for latest product information, visit www.gennum.com 522 - 17 - 03 8 GA3204
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