GA3214 Datasheet, PDF (1/6 Pages) Gennum Corporation – PARAGON-TM DIGITAL Two Channel DSP System

FEATURES
• highly configurable, versatile DSP platform
• high quality two-channel AGC signal processing
• fully programmable via serial data interface
• high performance data converters - dual, over-
sampled 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 PACKAGING
Hybrid typical dimensions:
0.227 x 0.125 x 0.060 in
(5.76 x 3.18 x 1.52 mm)
PARAGON^™ DIGITAL
Two Channel DSP System
GA3214/GA3224 PRELIMINARY DATA SHEET
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.
REG 7
REG ₆
205n
13n
REGULATOR
MIC 8
A/D
70n
T 10
A/D
60n
VC
SDA
MS
4
3
11
VC
A/D
INTERFACE EEPROM
VB
12
GA3214
(GA3224)
CHANNEL 1
CHANNEL 2
13 OUT+
S
D/A
HBRIDGE
1 OUT-
GND 9
GND ⁵
All resistors in ohms, all capacitors in farads unless otherwise stated.
BLOCK DIAGRAM
2
PGND
Doc.No. 22736 - 3 [Rev. December 2003]
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