gb3211/GB3221 preliminary data sheet doc.no.20475 - 4 [rev. december 2003] 1 of 7 gb3211 / GB3221 features ? high power applications highly configurable, versatile dsp platform high fidelity multi-channel agc signal processing 95db input dynamic rang e with hrx? headroom extension fully programmable via serial data interface high performance data converters ? dual, over- sampled a/ds; over-sampl ed d/a with efficient switched-mode output power amp sound design ? high-fidelity audio quality drives zero-bias 2-terminal receivers multiple communication rates up to 85.3kb/s multi-memory internal/external volume control volume control taper determined by external vc 2 memory select pads tri-state memory select operation audible memory change indicator thinstax ? packaging hybrid typical dimensions: 0.227 x 0.125 x 0.060 in (5.76 x 3.18 x 1.52 mm) description the gb3211 (GB3221) hybrid is a programmable dsp system based on a multi-channel compression circuit. this hybrid is designed for low impedance receivers. it can be used as a platform for a wide range of hearing aid applications. it also offers a seperate supply line to the a/d and h-bridge circuits. the reflowable thinstax? packaging enables easy integrat ion into bte applications. this versatile dsp hybrid is capable of multiple configurations and has a wide range of functions. the gb3211 hybrid contains the gc5051 controller chip and the GB3221 hybrid contains the gc5057 controller chip. the only difference between the gc5051 and the gc5057 is in their power on reset (por) behaviour. for a detailed description of the por behaviour of the gc5051 and gc5057 controller chips, please refer to paragon? digital reference guide , document #20143. the gb3211 and the gb322 1 hybrid code programmed into the gc5051 and the gc5057 controller chips is ?7?. this data sheet is a part of a set of documents available for this product. please refer to getting started with paragon? digital ? information note for a list of other documents. block diagram pgnd fmic mgnd vreg rmic t vc out- out+ ms sda vb interface vc a/d frontwave channel 1 channel 2 channel 3 channel 4 eeprom regulator gb3211 a/d a/d d/a hbridge 205n 60n 13n 70n 70n all resistors in ohms, all capacitors in farads unless otherwise stated. s ms2 vbp gnd 8 10 6 9 7 12 5 4 11 13 14 15 1 2 3 (GB3221) power paragon? digital four channel dsp system with f ront w ave ?
2 of 7 gb3211 / GB3221 gennum corporation 20475 - 4 absolute maximum rating pad connection operating temperature range: -10c to 40c storage temperature range: -20c to 70c absolute maximum power dissipation: 25mw maximum operating supply voltage: 1.5vdc absolute maximum supply voltage: 2vdc caution electrostatic sensitive devices do not open pack ages or handle except at a static-free workstation mgnd fmic t ms vb ms2 vbp out+ out- pgnd gnd sda vc rmic vreg 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 caution level 3 moisture sensitive devices do not open packages except under controlled conditions electrical characteristics conditions: supply voltage v b = 1.3v; temperature = 25c parameter symbol conditions min typ max units hybrid current amp see current consumption section - 700 - a minimum operating supply voltage v boff ramp down 0.94 1.0 1.05 v supply voltage turn on threshold v bon ramp up 1.06 1.10 1.16 v supply voltage hysteresis 90 100 110 mv supply voltage during communication v bc during communication 1.19 1.35 1.5 v hybrid current during communication p programming (<5 ms) - 3.7 - ma eeprom burn cycles note 2 100k - cycles low frequency system bandwidth 100 140 225 hz high frequency system bandwidth 15.2 16 16.8 khz total maximum system gain a v v in = -95 dbv @ 3khz; squelch disabled see note 1. 81 83 85 db converter gain a conv a/d + d/a gain. 27 29 31 db total harmonic distortion thd v in = -40 dbv - 0.05 1 % thd at maximum input thd m v in = -15 dbv, hrx - on - 1.5 3 % clock frequency ? clk 1.945 2.048 2.151 mhz regulator regulator voltage v reg 0.90 0.95 1.00 v regulator supply rejection psrr reg -50- db
3 of 7 gb3211 / GB3221 gennum corporation 20475 - 4 input input referred noise irn bandwidth 100hz - 8khz - -108 -106 dbv input impedance z in 11.2 16 22 k ? anti-alias filter rejection (input referred) ?=? clk -8khz, v in = -40dbv - 80 - db maximum input level --15- dbv input dynamic range hrx - on, bandwidth 100hz - 8khz - 95 - db audio sample rate 30.4 32 33.6 khz a/d dynamic range bandwidth 100hz - 8khz - 86 - db output maximum rms output voltage 0dbfs ? = 1khz -3 -1 1 dbv d/a dynamic range bandwidth 100hz - 8khz 80 - - db output impedance z out note 2 - - 20 ? volume control volume control resistance r vc 160 200 240 k ? volume control range ? a 47.5 48 48.5 db ms input low state lo 0 - v reg /3 v open state z v reg /3 - 2v reg /3 v high state hi 2v reg /3 - v b v ms2 input pull down resistance -1-m ? logic 1 voltage v reg -v b v rising edge threshold 0.50.690.9 v falling edge threshold 0.25 0.45 0.5 v hysteresis 0.10.240.4 v electrical characteristics (continued) conditions: supply voltage v b = 1.3v; temperature = 25c parameter symbol conditions min typ max units
4 of 7 gb3211 / GB3221 gennum corporation 20475 - 4 support software all support software for the gb3211 / GB3221 is available from gennum web site: www.gennum.com/hip/so ftware/index.html . sda input logic 0 voltage note 2 0 - 0.3 v logic 1 voltage note 2 1 - 1.3 v sda output standby pull up current 1.4 2 2.6 a sync pull up current 450 500 550 a logic 0 current (pull down) 225 250 275 a logic 1 current (pull up) 225 250 275 a synchronization time (synchronization pulse width) t sync baud = 0 baud = 1 baud = 2 baud = 3 baud = 4 baud = 5 baud = 6 baud = 7 237 118 59 29.76 14.88 7.44 3.72 1.86 250 125 62.5 31.25 15.63 7.81 3.91 1.95 263 132 66 32.81 16.41 8.20 4.10 2.05 s s s s s s s s note 1: total system gain consists of: wideband system gain + high and low independent channel gains + converter gain total system gain is calibrated during cal/config process. note 2: sample tested. electrical characteristics (continued) conditions: supply voltage v b = 1.3v; temperature = 25c parameter symbol conditions min typ max units
5 of 7 gb3211 / GB3221 gennum corporation 20475 - 4 figure 1: test circuit figure 2: sample application circuit interface vc a/d frontwave channel 1 channel 2 channel 3 channel 4 eeprom regulator gb3211 a/d a/d d/a hbridge 205n 60n 13n 70n 70n s 8 10 6 9 7 12 5 4 11 13 14 15 1 2 3 3k9 3k9 1k lp filter out v b 200k (GB3221) all resistors in ohms, all capacitors in farads unless otherwise stated. v b vc ms 200k(log) 22 interface vc a/d frontwave channel 1 channel 2 channel 3 channel 4 eeprom regulator gb3211 a/d a/d d/a hbridge 205n 60n 13n 70n 70n s ms2 47 12 11 13 14 15 1 2 3 5 8 10 6 9 7 4 knowles or microtronic microphones knowles or microtronic zero-bias receiver (GB3221) all resistors in ohms, all capacitors in farads unless otherwise stated.
6 of 7 gb3211 / GB3221 gennum corporation 20475 - 4 figure 3: assembly diagram zero biased receiver t-coil front mic + + rear mic + - cs44 ms2 switch vc ms switch (n.o.)
7 of 7 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 shinjuku green tower building 27f, 6-14-1, nishi shinjuku, shinjuku-ku, tokyo, 160-0023 japan tel. +81 (03) 3349-5501, fax. +81 (03) 3349-5505 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 october 2001 gennum corporation. all rights reserved . printed in canada. document identification preliminary 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. revision notes: GB3221 hybrid code changed. for latest product information, visit www.gennum.com gennum corporation 20475 - 4 gb3211 / GB3221 package dimensions pad locations dimension units are in inches. dimensions in parentheses are in millimetres, converted from inches and include minor rounding errors. 1.0000 inches = 25.400mm dimension tolerances: 0.003 (0.08) unless otherwise stated. work order number: xxxxxx this hybrid is designed for either point-to-point manual soldering or for reflow according to gennum's reflow process (information note 521-45). gb3211 0.227 (5.76) 0.125 (3.18) 0.065 max (1.65) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0.022 (0.559) 0.0175 (0.445) pa d no. p a d p o s i t i o n p a d d i m e n s i o n x y xdim ydim 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 -31 -63 -95 -127 -159 -191 -191 -159 -127 -95 -63 -30 2 0 0 -1.5 -0.25 -0.25 -1.5 2.75 5.5 75.5 78.25 82.5 81.25 81.25 85.5 82.5 39 20 22 22 22 22 22 22 22 22 22 22 22 26 16 20 29 26 28.5 28.5 26 34.5 40 40 34.5 26 28.5 28.5 24.5 26 29 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 -0.787 -1.600 -2.413 -3.226 -4.039 -4.851 -4.851 -4.039 -3.226 -2.413 -1.600 0.762 0.051 0 0 -0.038 -0.006 -0.006 -0.038 0.070 0.140 1.918 1.988 2.0965 2.0638 2.0638 2.172 2.096 0.991 0.508 0.559 0.559 0.559 0.559 0.559 0.559 0.559 0.559 0.559 0.559 0.559 0.660 0.406 0.508 0.737 0.660 0.724 0.724 0.660 0.876 1.016 1.016 0.876 0.660 0.724 0.724 0.622 0.660 0.737 mil mm
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