GA3214

PARAGON™ DIGITAL Two Channel DSP System GA3214/GA3224 PRELIMINARY DATA SHEET FEATURES • highly configurable, versatile DSP platform • high quality two-channel AGC signal processing • 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 • drives zero-bias 2-terminal receivers • multiple communication rates up to 85.3kb/s • thinSTAX™ packaging - CIC size • multi-memory • internal/external volume control • volume control taper determined by external VC • tri-state memory select operation • audible memory change indicator thinSTAX TM DESCRIPTION The GA3214 (GA3224) hybrid is a programmable DSP system based on a two-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 use in BTE applications. This very versatile DSP hybrid is capable of multiple configurations and has a wide range of functions. The GA3214 hybrid contains the GC5051 controller chip and the GA3224 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 GA3214 and the GA3224 hybrid code programmed into the GC5051 and the GC5057 controller chips is “8”. 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. GA3214 / GA3224 PACKAGING Hybrid typical dimensions: 0.227 x 0.125 x 0.060 in (5.76 x 3.18 x 1.52 mm) VC 4 205n REG 7 REG 6 MIC 8 70n A/D REGULATOR SDA 3 MS 11 VB 12 GA3214 (GA3224) 13n VC A/D INTERFACE EEPROM CHANNEL 1 S D/A HBRIDGE 13 OUT+ 1 OUT- CHANNEL 2 T 10 60n A/D GND 9 GND 5 2 All resistors in ohms, all capacitors in farads unless otherwise stated. PGND BLOCK DIAGRAM Doc.No. 22736 - 3 [Rev. December 2003] 1 of 6 ABSOLUTE MAXIMUM RATING Operating Temperature Range Storage Temperature Range Absolute Maximum Power Dissipation Maximum Operating Supply Voltage Absolute Maximum Supply Voltage -10°C to 40°C -20°C to 70°C 25mW PAD CONNECTION REG MIC GND T MS VB OUT+ 7 8 9 10 11 12 13 GA3214 / GA3224 1.5VDC 2VDC 6 5 4 3 2 1 REG GND VC SDA PGND OUT- CAUTION ELECTROSTATIC SENSITIVE DEVICES DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION CAUTION LEVEL 3 MOISTURE SENSITIVE DEVICES DO NOT OPEN PACKAGES EXCEPT UNDER CONTROLLED CONDITIONS ELECTRICAL CHARACTERISTICS Conditions: Supply Voltage VB = 1.3V; Temperature = 25°C PARAMETER Hybrid Current Minimum Operating Supply Voltage Supply Voltage turn on threshold Supply Voltage Hysteresis Supply Voltage during Communication Hybrid Current during Communication EEPROM Burn Cycles Low Frequency System Bandwidth High Frequency System Bandwidth Total Maximum System Gain SYMBOL ΙAMP VBOFF VBON CONDITIONS See current consumption section Ramp down Ramp up MIN 0.94 1.06 90 TYP 700 1.0 1.10 100 1.35 3.7 140 16 83 MAX 1.05 1.16 110 1.5 225 16.8 85 UNITS µA V V mV V mA cycles Hz kHz dB VBC ΙP During Communication Programming (