PARAGON™ DIGITAL Four Channel DSP System with FRONTWAVE ® GB3215/GB3225 PRELIMINARY DATA SHEET DESCRIPTION • highly configurable, versatile DSP platform The GB3215 (GB3225) hybrid is a programmable DSP system based on a multi-channel compression circuit. It can be used as a platform for a wide range of hearing aid applications. Its extensive programmability and compact size make it ideal for sophisticated CIC applications. The reflowable thinSTAX™ packaging enables easy integration into BTE applications. This very versatile DSP hybrid is capable of multiple configurations and has a wide range of functions. • high fidelity multi-channel AGC signal processing • 95dB input dynamic range with HRX™ Headroom Extension • fully programmable via serial data interface • high performance data converters - dual, oversampled A/Ds; over-sampled D/A with efficient switched-mode output power amp • SOUNDDESIGN™ high-fidelity audio quality The GB3215 hybrid contains the GC5051 controller chip and the GA3225 hybrid contains the GC5057 controller chip. The only difference between the GC5051 and the GC5057 is in their Power On Reset (POR) behaviour. • drives zero-bias 2-terminal receivers • multiple communication rates up to 85.3kb/s • thinSTAX™ packaging - CIC size • multi-memory For a detailed description of the POR behaviour of the GC5051 and GC5057 controller chips, please refer to PARAGON™ DIGITAL Reference Guide, Document #20143. • internal/external volume control • volume control taper determined by external VC • tri-state memory select operation • audible memory change indicator The GB3215 and the GB3225 hybrid code programmed into the GC5051 and the GC5057 controller chips is “9”. thinSTAX™ PACKAGING 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. Hybrid typical dimensions: 0.227 x 0.125 x 0.060 in (5.76 x 3.18 x 1.52 mm) 205n RREG 7 FREG 8 FMIC 9 REGULATOR 13n VC SDA MS VB 4 3 12 13 VC A/D INTERFACE A/D CHANNEL 1 FRONTWAVE CHANNEL 2 EEPROM GB3215 (GB3225) 70n S D/A HBRIDGE 14 OUT+ 1 OUT- 70n RMIC 6 T 11 A/D CHANNEL 3 60n FGND 10 RGND CHANNEL 4 5 2 All resistors in ohms, all capacitors in farads unless otherwise stated. PGND BLOCK DIAGRAM Doc.No. 22735 - 3 [Rev. December 2003] 1 of 6 GB3215 / GB3225 FEATURES ABSOLUTE MAXIMUM RATING PAD CONNECTION Operating Temperature Range: -10°C to 40°C Storage Temperature Range: -20°C to 70°C Absolute Maximum Power Dissipation: FREG FMIC FGND T MS VB OUT+ 8 9 10 11 12 13 14 7 6 5 4 3 2 1 RREG RMIC RGND VC SDA PGND OUT- 25mW GB3215 / GB3225 Maximum Operating Supply Voltage: 1.5VDC Absolute Maximum Supply Voltage: 2VDC CAUTION CAUTION ELECTROSTATIC SENSITIVE DEVICES LEVEL 3 MOISTURE SENSITIVE DEVICES DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION DO NOT OPEN PACKAGES EXCEPT UNDER CONTROLLED CONDITIONS ELECTRICAL CHARACTERISTICS Conditions: Supply Voltage VB = 1.3V; Temperature = 25°C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Hybrid Current ΙAMP See current consumption section - 700 - µA Minimum Operating Supply Voltage VBOFF Ramp down 0.94 1.0 1.05 V Supply Voltage turn on threshold VBON Ramp up 1.06 1.10 1.16 V 90 100 110 mV Supply Voltage Hysteresis Supply Voltage during Communication VBC During Communication 1.19 1.35 1.5 V Hybrid Current during Communication ΙP Programming (<5 ms) - 3.7 - mA EEPROM Burn Cycles Note 2 Low Frequency System Bandwidth High Frequency System Bandwidth Total Maximum System Gain AV VIN = -95 dBV @ 3kHz; squelch disabled 100k - 100 140 225 cycles Hz 15.2 16 16.8 kHz 81 83 85 dB See Note 1. 27 29 31 dB Total Harmonic Distortion THD VIN = -40 dBV - 0.05 1 % THD at Maximum Input THDM VIN = -15 dBV, HRX - ON - 1.5 3 % ƒclk 1.945 2.048 2.151 MHz VREG 0.90 0.95 1.00 V PSRRREG - 50 - dB Converter Gain Clock Frequency ACONV A/D + D/A gain. REGULATOR Regulator Voltage Regulator Supply Rejection 2 of 6 GENNUM CORPORATION 22735 - 3 ELECTRICAL CHARACTERISTICS (CONTINUED) Conditions: Supply Voltage VB = 1.3V; Temperature = 25°C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS - -108 -106 dBV 11.2 16 22 kΩ - 80 - dB - -15 - dBV - 95 - dB INPUT Input Referred Noise IRN Input Impedance ZIN ƒ=ƒclk-8kHz, VIN = -40dBV (input referred) Maximum Input Level Input Dynamic Range HRX - ON, Bandwidth 100Hz - 8kHz Audio Sample Rate A/D Dynamic Range 30.4 32 33.6 kHz Bandwidth 100Hz - 8kHz - 86 - dB 0dBFS ƒ = 1kHz -3 -1 1 dBV Bandwidth 100Hz - 8kHz 80 - - dB - - 20 Ω OUTPUT Maximum RMS Output Voltage D/A Dynamic Range Output Impedance ZOUT Note 2 VOLUME CONTROL Volume Control Resistance RVC 160 200 240 kΩ Volume Control Range ∆A 47.5 48 48.5 dB Low State Lo 0 - VREG/3 V Open State Z VREG/3 - 2VREG/3 V High State Hi 2VREG/3 - VB V MS INPUT SDA INPUT Logic 0 Voltage Note 2 0 - 0.3 V Logic 1 Voltage Note 2 1 - 1.3 V Standby Pull Up Current 1.4 2 2.6 µA Sync Pull Up Current 450 500 550 µA Logic 0 Current (Pull Down) 225 250 275 µA SDA OUTPUT Logic 1 Current (Pull Up) Synchronization Time TSYNC (Synchronization Pulse Width) 225 250 275 µA Baud = 0 237 250 263 µs Baud = 1 118 125 132 µs Baud = 2 59 62.5 66 µs Baud = 3 29.76 31.25 32.81 µs Baud = 4 14.88 15.63 16.41 µs Baud = 5 7.44 7.81 8.20 µs Baud = 6 3.72 3.91 4.10 µs Baud = 7 1.86 1.95 2.05 µs 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. SUPPORT SOFTWARE All support software for the GB3215 / GB3225 is available from Gennum Web Site www.gennum.com/hip/software/index.html. 3 of 6 GENNUM CORPORATION 22735 - 3 GB3215 / GB3225 Anti-alias Filter Rejection Bandwidth 100Hz - 8kHz VB 200k 4 8 VC A/D 13 GB3215 INTERFACE EEPROM (GB3225) 205n 9 3k9 13n 12 GB3215 / GB3225 REGULATOR 7 3 A/D CHANNEL 1 FRONTWAVE CHANNEL 2 70nF OUT D/A HBRIDGE S 14 LP FILTER 1 70n 6 CHANNEL 3 A/D 3k9 1k 11 60n CHANNEL 4 10 5 2 All resistors in ohms, all capacitors in farads unless otherwise stated. Figure 1: Test Circuit VC 200k VB MS 4 REGULATOR 7 11 3 13n 205n VC A/D INTERFACE 12 GA3214 (GA3224) EEPROM 6 8 A/D CHANNEL 1 70n S D/A HBRIDGE CHANNEL 2 10 13 1 Knowles or Microtronic zero-bias receiver A/D 60n 9 5 2 All resistors in ohms, all capacitors in farads unless otherwise stated. Knowles or Microtronic microphones Figure 2: Typical Application Circuit 4 of 6 GENNUM CORPORATION 22735 - 3 T-coil SW(N.O.) GB3215 / GB3225 Mic + Zero Biased Receiver VC + CS44 Figure 3: Assembly Diagram 5 of 6 GENNUM CORPORATION 22735 - 3 PAD LOCATION 0.065 MAX (1.65) 8 7 9 6 10 5 11 4 12 3 13 2 14 1 0.0317 (0.806) 0.020 (0.508) 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). PAD DIMENSION X Y Xdim Ydim 1 0 0 23.0 40.5 2 -31.5 3 24.0 46.5 3 -63.0 3 23.0 46.5 4 -94.0 3 23.0 46.5 5 -125.0 3 23.0 46.5 6 -156.0 3 23.0 46.5 7 -187.0 3 23.0 46.5 8 -187.0 64.5 23.0 46.5 9 -156.0 64.5 23.0 46.5 10 -125.0 64.5 23.0 46.5 11 -94.0 64.5 23.0 46.5 12 -63.0 64.5 23.0 46.5 13 -31.5 64.5 24.0 46.5 14 0 67.5 23.0 40.5 1 0 0 0.584 1.029 2 -0.800 0.076 0.584 1.181 3 -1.600 0.076 0.584 1.181 4 -2.388 0.076 0.584 1.181 5 -3.175 0.076 0.584 1.181 6 -3.962 0.076 0.584 1.181 7 -4.750 0.076 0.584 1.181 8 -4.750 0.076 0.584 1.181 9 -3.962 1.638 0.584 1.181 10 -3.175 1.638 0.584 1.181 11 -2.388 1.638 0.610 1.181 12 -1.600 1.638 0.584 1.181 13 -0.800 1.638 0.584 1.181 14 0 1.715 0.584 1.029 REVISION NOTES: GB3225 hybrid code changed. For latest product information, visit www.gennum.com DOCUMENT IDENTIFICATION PRELIMINARY DATA SHEET The product is in a preproduction phase and specifications are subject to change without notice. GENNUM CORPORATION GENNUM JAPAN CORPORATION MAILING ADDRESS: P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 Tel. +1 (905) 632-2996 Fax. +1 (905) 632-5946 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 SHIPPING ADDRESS: 970 Fraser Drive, Burlington, Ontario, Canada L7L 5P5 Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. © Copyright February 2002 Gennum Corporation. All rights reserved. Printed in Canada. 6 of 6 22735 - 3 GB3215 / GB3225 GB3215 0.125 (3.18) PAD POSITION MIL PAD NO. 0.227 (5.76) mm PACKAGE DIMENSIONS