v b out v reg in gnd sda b out b in 0 1 0 2 c1 GM3036 c2 c4 c3 0 1 0 1 0 1 0 2 10n r2 49k5 r3 r4 r6 r5 pgi 1 slow average detector fast average detector control 10k rectifier v b 3k3 regulator 48k 48k 11k 1m 2m 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 r lo r hi 4:1 1:1 c sad mpo r th b out b in r fc f out a out rec out c fad v bat v reg in gnd 2 3 4 5 6 7 8 r1 r7 c5 c6 c7 69k5 100k 200k 200k 500k 200k data sheet GM3036 programmable dynameq ? ii hybrid features ? dynameq ? ii flexibility ? six programmable parameters ? 24 db/oct state variable filter ? twin average detectors ? handles high input levels ? drives class d integrated receivers standard packaging hybrid typical dimensions: 0.209 in x 0.125 in x 0.100 in (5.31 mm x 3.18 mm x 2.54 mm) description the GM3036 programmable hybrid is composed of a dynameq ? ii wide dynamic range compression signal processor and the gp522 controller memory chip. the hybrid incorporates 24 db/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 GM3036 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. the output stage is designed as a preamplifier for the class d integrated receiver. block diagram all resistors in ohms, all capacitors in farads unless otherwise stated. * patent pending revision date: september 2000 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 document no. 521 - 74 - 05 GM3036
2 521 - 74 - 05 GM3036 sda v b out b out b in gnd v reg 1 2 3 4 5 6 7 8 in caution electrostatic sensitive devices do not open packages or handle except at a static-free workstation electrical characteristics absolute maximum ratings parameter value supply voltage 1.4vdc power dissipation 25mw operating temperature range -10 c to 40 c storage temperature range -20 c to 70 c pad connection parameter symbol conditions min typ max units hybrid current i amp - 395 580 m a minimum voltage vb 1.1 - - v total harmonic distortion thd v in = -40dbv at 1khz - 0.6 1.0 % thd with maximum allowable input thd m v in = -23dbv, rvc = 47k w -210% input referred noise irn aweighted filter - 3.0 - m v rms total system gain a v v in = -90dbv 45 48 51 db regulator voltage v reg i load = 30 m a 890 930 1000 mv agc lower threshold th lo -88.5 -84.5 -80.5 dbv upper threshold th hi -36 -32 -28 dbv compression gain range d a gain(-90dbv in ) -gain(-30dbv in ) 37.5 40.5 43.5 db system gain in compression a 60 v in =-60dbv 26 29 32 db min. compression ratio cmp 1 :1 v in =3khz, -60dbv to -40dbv, r3 - tap 15; r6 - tap 15 0.9 1.0 1.1 ratio max. comp. ratio cmp 4 :1 v in =3khz, -60dbv to -40dbv, r3 - tap 0; r6 - tap 0 3.6 4.0 4.3 ratio fast average detector time constant t fast -10-ms slow average detector time constant t slow -200-ms filter maximum crossover frequency ? c_max r1 - tap 15 3.0 3.9 - khz nominal crossover frequency ? c_nom r1 - tap 8 1.5 1.9 2.3 khz minimum crossover frequency ? c_min r1 - tap 0 - 0.9 1.4 khz filter rolloff rate - 24 - db/oct 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 - tap15; (th) r2 - tap 0; (fc) r1 - tap 8; (hp) r6 - tap 0; (lp) r3 - tap 0; (vc) r4 - tap 0, r7 - tap 0.
3 521 - 74 - 05 GM3036 fig. 1 test circuit parameter symbol conditions min typ max units stage a and b --- open loop gain (b) a ol_b -52-db input impedance (a) r in 8 10.6 12 k w output stage stage gain a c v in =-30dbv 7 9 11 db max output level mpo v in =-25dbv, r vcext =221k -20 -18 -16 dbv mpo range d mpo r5 - tap 15 to tap 0, r vcext =221k 11.6 13.6 15.6 db output resistance r out -24-k w electrical characteristics continued conditions: supply voltage v b = 1.3v, frequency = 1khz, temperature = 25 c the programmable parameters are adjusted to the following set values unless otherwise specified. (mpo) r5 - tap 15; (th) r2 - tap 0; (fc) r1 - tap 8; (hp) r6 - tap 0; (lp) r3 - tap 0; (vc) r4 - tap 0, r7 - tap 0. all conditions and parameters remain as shown in the test circuit unless otherwise specified in the conditions column. 7 50k 0 1 0 2 c1 GM3036 c2 c4 c3 0 1 0 1 0 1 0 2 2 2 10n r2 49k5 r3 r4 r6 r5 pgi 1 slow average detector fast average detector control 10k rectifier v b 3k3 regulator 48k 48k 11k 1m 2m 13k1 12k 3k9 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 r lo r hi 4:1 1:1 c sad mpo r th b out b in r fc r vc f out a out rec out c fad v bat v b v reg in gnd 2 3 4 5 6 7 8 r1 r7 c5 c6 c7 69k5 100k 200k 200k 500k 200k 116k all resistors in ohms, all capacitors in microfarads, unless otherwise stated.
4 521 - 74 - 05 GM3036 fig. 3 characterization circuit (used to generate typical curves) fig. 2 typical application circuit v b r vc 100k log v b any knowles or microtronic microphone any knowles class d integrated receiver out 0 1 0 2 c1 GM3036 c2 c4 c3 0 1 0 1 0 1 0 2 10n r2 49k5 r3 r4 r6 r5 pgi 1 slow average detector fast average detector control 10k rectifier v b 3k3 regulator 48k 48k 11k 1m 2m 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 r lo r hi 4:1 1:1 c sad mpo r th b out b in r fc f out a out rec out c fad v bat v reg in gnd 2 3 4 5 7 8 r1 r7 c5 c6 c7 69k5 100k 200k 200k 500k 200k 6 2 2 all resistors in ohms, all capacitors in microfarads, unless otherwise stated. 2 2 v b = 1.3v 50k to programmer pink noise generator v in = -80dbv 0 1 0 2 c1 GM3036 c2 c4 c3 0 1 0 1 0 1 0 2 10n r2 49k5 r3 r4 r6 r5 pgi slow average detector fast average detector control 10k rectifier v b 3k3 regulator 48k 48k 11k 1m 2m 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 r lo r hi 4:1 1:1 c sad mpo r th b out b in r fc f out a out rec out c fad v bat v reg in gnd 2 3 4 5 6 7 8 r1 r7 c5 c6 c7 69k5 100k 200k 200k 500k 200k 1 all resistors in ohms, all capacitors in microfarads, unless otherwise stated. table of defaults r1 - tap 8 r2 - tap 0 r3 - tap 0 r4 - tap 2 r5 - tap 15 r6 - tap 0 r7 - tap 23
5 521 - 74 - 05 GM3036 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 - 200k w ) 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) r3 - tap 0 r3 - tap 15 ?= 1 khz r1 - tap 15 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 - 200k w ) v in = -80dbv 50 48 44 40 36 32 28 24 20 16 12 8 4 0 fig. 4 typical assembly diagram fig. 5 i/o transfer function for different compression ratios (high frequency channel) fig. 6 high frequency gain (compression ratio adjustment) fig. 7 i/o transfer function for different compression ratios (low frequency channel) fig. 8 low frequency gain (compression ratio adjustment) -90 -80 -70 -60 -50 -40 -30 -20 -100 -90 -80 -70 -60 -50 -40 -30 -20 output level (dbv) input level (dbv) r6 - tap 0 r6 - tap 15 ?= 4 khz r1 - tap 0 typical performance curves sda v b out b out b in c2 c1 c3 c4 c5 c7 c6 in gnd v reg 1 2 3 4 5 6 7 8 + microphone + receiver battery + - back view of microtronic socket 2 2
6 521 - 74 - 05 GM3036 fig. 9 frequency response for different crossover frequency steps 0 10 20 30 40 50 100 1k 10k gain (db) frequency (hz) 20 20k v in = -80dbv r3 - tap 0 r1 - tap 15 r1 - tap 0 fig. 10 frequency response for different crossover frequency steps 100 1k 10k 0 10 20 30 40 50 gain (db) frequency (hz) 20 20k r1 - tap 0 r1 - tap 15 v in = -80dbv r6 - tap 0 fig. 12 crossover frequency adjustment 0 10 20 30 40 50 100 1k 10k 20 20k gain (db) frequency (hz) v in = -80dbv r6 - tap 0 r1 - tap 2 r3 - tap 0 r1 - tap 2 fig. 11 crossover frequency representation crossover frequency (hz) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 500 10k 1k r1 resistor taps (tap 0 - 69.5k , tap 15 - 0k ) v in = -80dbv fig. 13 i/o transfer function for different thresholds fig. 14 threshold adjustment -70 -60 -50 -40 -30 -20 -100 -90 -80 -70 -60 -50 -40 output level (dbv) input level (dbv) r2-tap 15 ?1khz r2-tap 0 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 - 49.5k , tap 15 - 0k ) output threshold level (dbv)
7 521 - 74 - 05 GM3036 0.01 0.1 1 10 -80 -70 -60 -50 -40 -30 -20 imd (%) input level (dbv) ?= 4 khz ? = 200 hz r4 - tap 7 r7 - tap 23 0.1 1 10 0.1k 1.0k 10k thd & noise (%) frequency (hz) v in = -40dbv r4 - tap 7 r7 - tap 23 fig. 15 i/o transfer function for different mpo steps -50 -40 -30 -20 -10 -50 -40 -30 -20 output level (dbv) input level (dbv) r5 - tap 15 r5 - tap 0 fig. 16 mpo adjustment -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 - 100k w , tap 15 - 0k w ) fig. 17 thd and noise vs frequency fig. 18 thd and noise vs input level 0.1 1 10 -80 -70 -60 -50 -40 -30 -20 thd & noise (%) input level (dbv) ?= 1 khz r4 - tap 7 r7 - tap 23 fig. 19 intermodulation distortion (ccif) vs frequency 0.1 1 10 10k 100k imd (%) frequency (hz) 3k v in = -40dbv ? = 200 hz r4 - tap 7 r7 - tap 23 fig. 20 intermodulation distortion (ccif) vs input level
8 521 - 74 - 05 GM3036 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 1997 gennum corporation. all rights reserved. printed in canada. revision notes: correction to lower threshold minimum value. 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. pad sizes 0.024 x 0.022 (0.61 x 0.56). xxxxxx - work order number. this hybrid is designed for point-to-point manual soldering. fig. 21 frequency response for different r4 values 10 20 30 40 50 60 100 1k 10k 20k 20 gain (db) frequency (hz) r4 = 100 k r4 = 200 k r4 = 49 k r4 = 22 k r4 = 10 k package dimensions document identification: data sheet the product is in production. gennum reserves the right to make changes at any time to improve reliability, function or design, in order to provide the best product possible. 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 sda v b out b out b in c2 c1 c3 c4 c5 c7 c6 in gnd v reg GM3036 xxxxxx 1 2 3 4 5 6 7 8 0.102 max (2.59) 0.125 (3.18) 0.209 (5.31)
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