ETC GA3214

PARAGON ™ DIGITAL
Two Channel DSP System
GA3214 PRELIMINARY DATA SHEET
DESCRIPTION
• highly configurable, versatile DSP platform
The GA3214 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. It’s
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.
• 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
• drives zero-bias 2-terminal receivers
• multiple communication rates up to 85.3kb/s
The GA3214 hybrid code programmed into the GC5051
controller chip is “8”.
• thinSTAX™ packaging - CIC size
• multi-memory
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.
• 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)
7
REG
6
MIC
8
SDA
MS
VB
4
3
11
12
13n
205n
REG
VC
REGULATOR
VC
A/D
INTERFACE
GA3214
EEPROM
A/D
CHANNEL 1
70n
Σ
D/A
HBRIDGE
13 OUT+
1
OUT-
CHANNEL 2
A/D
T 10
60n
GND
9
GND
5
2
All resistors in ohms, all capacitors in farads unless otherwise stated.
PGND
BLOCK DIAGRAM
Doc.No.22736 - 1 [Rev. September 2002]
1
GA3214
FEATURES
ABSOLUTE MAXIMUM RATING
PAD CONNECTION
Operating Temperature Range
-10°C to 40°C
Storage Temperature Range
-20°C to 70°C
Absolute Maximum Power Dissipation
MIC
GND
T
MS
VB
7
8
9
10
11
12
13
6
5
4
3
2
1
REG
GND
VC
SDA
PGND
OUT-
OUT+
25mW
Maximum Operating Supply Voltage
GA3214
REG
1.5VDC
Absolute Maximum Supply Voltage
2VDC
ELECTRICAL CHARACTERISTICS
Conditions: Supply Voltage VB = 1.3V; Temperature = 25°C
PARAMETER
Hybrid Current
SYMBOL
CONDITIONS
ΙAMP
See current consumption section
MIN
TYP
MAX
UNITS
-
700
-
µA
Minimum Operating Supply
Voltage
VBOFF
Ramp down
0.94
1.0
1.05
V
Supply Voltage turn on threshold
VBON
Ramp up
1.06
1.10
1.16
V
90
100
110
mV
Supply Voltage Hysteresis
Supply Voltage during
Communication
VBC
During Communication
1.19
1.35
1.5
V
Hybrid Current during
Communication
ΙP
Programming (<5 ms)
-
3.7
-
mA
EEPROM Burn Cycles
100k
-
-
cycles
Low Frequency System
Bandwidth
-
125
-
Hz
High Frequency System
Bandwidth
-
16
-
kHz
VIN = -95 dBV @ 3kHz; squelch
disabled
See Note 1.
-
83
-
dB
A/D + D/A gain.
-
29
-
dB
-
-
1
%
Total Maximum System Gain
Converter Gain
Note 2
AV
ACONV
Total Harmonic Distortion
THD
VIN = -40 dBV
THD at Maximum Input
THDM
VIN = -15 dBV, HRX - ON
Clock Frequency
-
-
3
%
ƒclk
1.945
2.048
2.151
MHz
VREG
0.90
0.95
1.00
V
PSRRREG
-
50
-
dB
REGULATOR
Regulator Voltage
Regulator Supply Rejection
INPUT
Input Referred Noise
IRN
Input Impedance
ZIN
Anti-alias Filter Rejection
(input referred)
Bandwidth 100Hz - 8kHz
-
-
-106
dBV
-
16
-
kΩ
-
80
-
dB
-
-15
-
dBV
HRX - ON, Bandwidth 100Hz 8kHz
-
95
-
dB
-
32
-
kHz
Bandwidth 100Hz - 8kHz
-
86
-
dB
ƒ=ƒclk-8kHz,
VIN = -40dBV
Maximum Input Level
Input Dynamic Range
Audio Sample Rate
A/D Dynamic Range
2
22736 - 1
ELECTRICAL CHARACTERISTICS
(Continued)
Conditions: Supply Voltage VB = 1.3V; Temperature = 25°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
0dBFS ƒ = 1kHZ
-
-1
-
dBV
Bandwidth 100Hz - 8kHz
-
80
-
dB
Note 2
-
-
20
Ω
OUTPUT
Maximum RMS Output Voltage
D/A Dynamic Range
ZOUT
GA3214
Output Impedance
VOLUME CONTROL
Volume Control Resistance
RVC
-
200
-
kΩ
Volume Control Range
∆A
47.5
48.13
48.5
dB
Lo
0
-
VREG/3
V
MS INPUT
Low State
Open State
Z
VREG/3
-
2VREG/3
V
High State
Hi
2VREG/3
-
VB
V
SDA INPUT
Logic 0 Voltage
Note 2
0
-
0.3
V
Logic 1 Voltage
Note 2
1
-
1.3
V
Standby Pull Up Current
1.4
2
2.6
µA
Sync Pull Up Current
450
500
550
µA
Logic 0 Current (Pull Down)
225
250
275
µA
225
250
275
µA
237
118
59
250
125
62.5
263
132
66
µs
µs
µs
SDA OUTPUT
Logic 1 Current (Pull Up)
Synchronization Time
(Synchronization Pulse Width)
Baud = 0
Baud = 1
Baud = 2
TSYNC
NOTE 1: Total System Gain consists of: Wideband System Gain + High and Low Independent Channel Gains + Converter Gain
Total System Gain is calibrated during Cal/Config process.
NOTE 2: Sample tested.
SUPPORT SOFTWARE
All support software for the GA3214 is available from Gennum
Web Site www.gennum.com/hip/software/paragon_sw.html
VB
200k
VC
SDA
4
205n
REG
7
REG
6
MIC
8
3k9
MS
3
VB
11
13n
REGULATOR
VC
A/D
INTERFACE
GA3214
EEPROM
A/D
CHANNEL 1
70n
Σ
T
12
D/A
HBRIDGE
13
OUT+
OUT
LP FILTER
1
OUT-
CHANNEL 2
10
1k
A/D
60n
GND
9
GND
5
2
All resistors in ohms, all capacitors in farads unless otherwise stated.
PGND
Fig. 1 Test Circuit
3
GENNUM CORPORATION
22736 - 1
VB
200k
VC
SDA
4
GA3214
REG
MIC
VB
11
13n
205n
REG
MS
3
REGULATOR
7
VC
A/D
INTERFACE
12
GA3214
EEPROM
6
8
A/D
CHANNEL 1
70n
D/A
HBRIDGE
Σ
13
1
T
CHANNEL 2
10
OUT-
Knowles or Microtronic
zero-bias receiver
A/D
60n
GND
OUT+
9
5
GND
2
All resistors in ohms, all capacitors in farads unless otherwise stated.
Knowles or Microtronic microphones
PGND
Fig. 2 Typical Application Circuit
T-coil
SW(N.O.)
Mic
+
Rec
VC
Fig. 3 Assembly Diagram
4
22736 - 1
+
CS44
PACKAGE DIMENSIONS
PAD LOCATION
X
GA3214
0.125
(3.18)
0.065 MAX
(1.65)
7
6
8
9
10
5
4
11 12 13
3
2
1
0.0317
(0.806)
0.020
(0.508)
Dimension units are in inches.
Dimensions in parentheses are in millimetres, converted from inches and include
minor rounding errors.
1.0000 inches = 25.400mm
Dimension tolerances: ±0.003 (±0.08) unless otherwise stated.
Work order number: XXXXXX
Minimum Pad Size: 0.023 x 0.041 (0.58 x 1.03)
This Hybrid is designed for either point-to-point manual soldering or for reflow according
to Gennum's reflow process (Information Note 521-45).
0
-31.5
-63.0
-94.0
-125.0
-187.0
-187.0
-156.0
-125.0
-94.0
-63.0
-31.5
0
0
-0.800
-1.600
-2.388
-3.175
-4.750
-4.750
-3.962
-3.175
-2.388
-1.600
-0.800
0
Y
0
3
3
3
3
3
64.5
64.5
64.5
64.5
64.5
64.5
67.5
0
0.076
0.076
0.076
0.076
0.076
1.638
1.638
1.638
1.638
1.638
1.638
1.715
Xdim
Ydim
23.0
24.0
23.0
23.0
23.0
23.0
23.0
23.0
23.0
23.0
23.0
24.0
23.0
0.584
0.610
0.584
0.584
0.584
0.584
0.584
0.584
0.584
0.584
0.584
0.610
0.584
40.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
40.5
1.029
1.181
1.181
1.181
1.181
1.181
1.181
1.181
1.181
1.181
1.181
1.181
1.029
GA3214
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
PAD DIMENSION
MIL
PAD POSITION
mm
PAD
NO.
0.227
(5.76)
CAUTION
ELECTROSTATIC
SENSITIVE DEVICES
DO NOT OPEN PACKAGES OR HANDLE
EXCEPT AT A STATIC-FREE WORKSTATION
DOCUMENT IDENTIFICATION
REVISION NOTES:
PRELIMINARY DATA SHEET
The product is in a preproduction phase and specifications
are subject to change without notice.
Tri-state memory select switch. Pad location table changed.
For latest product information, visit www.gennum.com
GENNUM CORPORATION
GENNUM JAPAN CORPORATION
MAILING ADDRESS:
P.O. Box 489, Stn A, Burlington Ontario, Canada L7R 3Y3
Tel. +1 (905) 632-2996 fax: +1 (905) 632-2814
C-101, Miyamae Village, 2-10-42 Miyamae, Suginami-ku, Tokyo 168-0081, Japan
Tel. +81 (3) 3334-7700 Fax: +81 (3) 3247-8839
SHIPPING ADDRESS:
970 Fraser Drive, Burlington, Ontario, Canada L7L 5P5
Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement.
© Copyright February 2002 Gennum Corporation. All rights reserved. Printed in Canada.
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22736 - 1