GB3221

Power PARAGON™ DIGITAL Four Channel DSP System with FRONTWAVE ® GB3211/GB3221 PRELIMINARY DATA SHEET FEATURES • high power applications • 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 • 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) VB 12 205n VREG 7 REGULATOR DESCRIPTION GB3211 / GB3221 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 integration 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 GB3221 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. VC 5 VC A/D SDA 4 MS 11 MS2 13 VBP 14 GB3211 (GB3221) 13n INTERFACE EEPROM FMIC 9 70n A/D CHANNEL 1 FRONTWAVE CHANNEL 2 S D/A HBRIDGE 15 OUT+ 1 OUT- 70n RMIC T 6 A/D CHANNEL 3 10 60n CHANNEL 4 MGND 8 3 All resistors in ohms, all capacitors in farads unless otherwise stated. GND 2 PGND BLOCK DIAGRAM Doc.No.20475 - 4 [Rev. December 2003] 1 of 7 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 1.5VDC 2VDC PAD CONNECTION MGND 8 FMIC 9 T 10 MS 11 VB 12 MS2 13 14 VBP GB3211 / GB3221 15 OUT+ 7 VREG 6 RMIC 5 VC 4 SDA 3 GND 2 PGND 1 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 - UNITS µA V V mV V mA cycles VBC ΙP During Communication Programming (