GC5057

PARAGON™ DIGITAL Four Channel DSP System with FRONTWAVE ® GB3215/GB3225 PRELIMINARY DATA SHEET FEATURES • highly configurable, versatile DSP platform • 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 • 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™ PACKAGING Hybrid typical dimensions: 0.227 x 0.125 x 0.060 in (5.76 x 3.18 x 1.52 mm) DESCRIPTION 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. 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. 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 GB3215 and the GB3225 hybrid code programmed into the GC5051 and the GC5057 controller chips is “9”. 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. GB3215 / GB3225 VC 4 205n RREG FREG FMIC 7 8 9 70n A/D REGULATOR SDA 3 MS 12 VB 13 GB3215 (GB3225) 13n VC A/D INTERFACE EEPROM CHANNEL 1 FRONTWAVE CHANNEL 2 S D/A HBRIDGE 14 OUT+ 1 OUT- 70n RMIC T 6 A/D CHANNEL 3 11 60n CHANNEL 4 FGND 10 RGND 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 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 FREG FMIC FGND T MS VB OUT+ 8 9 10 11 12 13 14 GB3215 / GB3225 1.5VDC 2VDC 7 6 5 4 3 2 1 RREG RMIC RGND 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 Converter Gain Total Harmonic Distortion THD at Maximum Input Clock Frequency REGULATOR Regulator Voltage Regulator Supply Rejection 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 29 0.05 1.5 2.048 MAX 1.05 1.16 110 1.5 - UNITS µA V V mV V mA cycles VBC ΙP During Communication Programming (