鈩?/div>
DIGITAL
Two Channel DSP System
GA3214/GA3224 PRELIMINARY DATA SHEET
FEATURES
鈥?highly configurable, versatile DSP platform
鈥?high quality two-channel AGC signal processing
鈥?fully programmable via serial data interface
鈥?high performance data converters - dual, over-
sampled A/Ds; over-sampled D/A with efficient
switched-mode output power amp
鈥?SOUNDDESIGN鈩?high-fidelity audio quality
鈥?drives zero-bias 2-terminal receivers
鈥?multiple communication rates up to 85.3kb/s
鈥?thinSTAX鈩?packaging - CIC size
鈥?multi-memory
鈥?internal/external volume control
鈥?volume control taper determined by external VC
鈥?tri-state memory select operation
鈥?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)
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鈩?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鈩?DIGITAL Reference Guide,
Document
#20143.
The GA3214 and the GA3224 hybrid code programmed
into the GC5051 and the GC5057 controller chips is 鈥?鈥?
This data sheet is a part of a set of documents available for
this product. Please refer to 鈥淕etting
Started with
PARAGON鈩?DIGITAL鈥?/span>
information note for a list of other
documents.
GA3214 / GA3224
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]
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