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PARAGONTM DIGITAL Four Channel DSP System with FRONTWAVE (R)
GB3215/GB3225 PRELIMINARY DATA SHEET FEATURES * highly configurable, versatile DSP platform * high fidelity multi-channel AGC signal processing * 95dB input dynamic range with HRXTM 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 * SOUNDDESIGNTM high-fidelity audio quality * drives zero-bias 2-terminal receivers * multiple communication rates up to 85.3kb/s * thinSTAXTM 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 thinSTAXTM 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 thinSTAXTM 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 PARAGONTM 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 PARAGONTM 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]
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ABSOLUTE MAXIMUM RATING
Operating Temperature Range: Storage Temperature Range: Absolute Maximum Power Dissipation: Maximum Operating Supply Voltage: Absolute Maximum Supply Voltage: -10C to 40C -20C to 70C 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 = 25C
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 AMP 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 A V V mV V mA cycles
VBC P
During Communication Programming (<5 ms) Note 2
1.19 100k 100 15.2
225 16.8 85 31 1 3 2.151
Hz kHz dB dB % % MHz
AV ACONV THD THDM clk
VIN = -95 dBV @ 3kHz; squelch disabled See Note 1. A/D + D/A gain. VIN = -40 dBV VIN = -15 dBV, HRX - ON
81 27 1.945
VREG PSRRREG
0.90 -
0.95 50
1.00 -
V dB
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GENNUM CORPORATION
22735 - 3
ELECTRICAL CHARACTERISTICS
PARAMETER INPUT Input Referred Noise Input Impedance Anti-alias Filter Rejection (input referred) Maximum Input Level Input Dynamic Range Audio Sample Rate A/D Dynamic Range OUTPUT Maximum RMS Output Voltage D/A Dynamic Range Output Impedance VOLUME CONTROL Volume Control Resistance Volume Control Range MS INPUT Low State Open State High State SDA INPUT Logic 0 Voltage Logic 1 Voltage SDA OUTPUT Standby Pull Up Current Sync Pull Up Current Logic 0 Current (Pull Down) Logic 1 Current (Pull Up) Synchronization Time (Synchronization Pulse Width)
(CONTINUED) Conditions: Supply Voltage VB = 1.3V; Temperature = 25C
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
IRN ZIN
Bandwidth 100Hz - 8kHz
11.2
-108 16 80 -15 95 32 86
-106 22 33.6 -
dBV k
GB3215 / GB3225
=clk-8kHz,
VIN = -40dBV
-
dB dBV dB kHz dB
HRX - ON, Bandwidth 100Hz - 8kHz
30.4
Bandwidth 100Hz - 8kHz
-
0dBFS = 1kHz Bandwidth 100Hz - 8kHz ZOUT Note 2
-3 80 -
-1 -
1 20
dBV dB
RVC A
160 47.5
200 48
240 48.5
k dB
Lo Z Hi
0 VREG/3 2VREG/3
-
VREG/3 2VREG/3 VB
V V V
Note 2 Note 2
0 1
-
0.3 1.3
V V
1.4 450 225 225 TSYNC Baud = 0 Baud = 1 Baud = 2 Baud = 3 Baud = 4 Baud = 5 Baud = 6 Baud = 7 237 118 59 29.76 14.88 7.44 3.72 1.86
2 500 250 250 250 125 62.5 31.25 15.63 7.81 3.91 1.95
2.6 550 275 275 263 132 66 32.81 16.41 8.20 4.10 2.05
A A A A s s s s s s s s
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 GB3215 / GB3225 is available from Gennum Web Site www.gennum.com/hip/software/index.html.
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GENNUM CORPORATION
22735 - 3
200k
VB
4
REGULATOR
3
12
13 GB3215
13n
7 8 9 3k9 70nF
VC A/D
GB3215 / GB3225
INTERFACE
EEPROM
(GB3225)
205n
A/D CHANNEL 1
OUT
FRONTWAVE CHANNEL 2
S
D/A HBRIDGE
14
LP FILTER
1
70n 6 3k9 1k
A/D CHANNEL 3
11 60n 10 5 2 All resistors in ohms, all capacitors in farads unless otherwise stated.
CHANNEL 4
Figure 1: Test Circuit
VC 200k
VB MS
4 205n 7 6 8 70n
A/D REGULATOR
3
INTERFACE EEPROM
11
12 GA3214 (GA3224)
13n
VC A/D
CHANNEL 1
S
D/A HBRIDGE
13 1 Knowles or Microtronic zero-bias receiver
CHANNEL 2
10 60n
A/D
9 5 2 All resistors in ohms, all capacitors in farads unless otherwise stated. Knowles or Microtronic microphones
Figure 2: Typical Application Circuit
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GENNUM CORPORATION
22735 - 3
T-coil SW(N.O.)
GB3215 / GB3225
Mic + Zero Biased Receiver
VC +
22735 - 3
CS44
Figure 3: Assembly Diagram
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GENNUM CORPORATION
-
PACKAGE DIMENSIONS
PAD LOCATION
0.227 (5.76)
PAD NO. 1 2 3 4 5 6 7
0.065 MAX (1.65)
PAD POSITION X Y 0 3 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 0.076 0.076 1.638 1.638 1.638 1.638 1.638 1.715
PAD DIMENSION Xdim 23.0 24.0 23.0 23.0 23.0 23.0 23.0 23.0 23.0 23.0 23.0 23.0 24.0 23.0 0.584 0.584 0.584 0.584 0.584 0.584 0.584 0.584 0.584 0.584 0.610 0.584 0.584 0.584 Ydim 40.5
0.125 (3.18)
GB3215
0 -31.5 -63.0 -94.0 -125.0 -156.0 -187.0 -187.0 -156.0 -125.0 -94.0 -63.0 -31.5 0 0 -0.800 -1.600 -2.388 -3.175 -3.962 -4.750 -4.750 -3.962 -3.175 -2.388 -1.600 -0.800 0
GB3215 / GB3225
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 46.5
8 9 10
8
9
10
11
12
13
14
11 12 13
0.0317 (0.806)
7
6
5
4
3
2
1
14 1 2 3 4 5 6 7 8 9 10 11 12 13 14
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 This Hybrid is designed for either point-to-point manual soldering or for reflow according to Gennum's reflow process (Information Note 521-45).
DOCUMENT IDENTIFICATION
PRELIMINARY DATA SHEET The product is in a preproduction phase and specifications are subject to change without notice.
REVISION NOTES: GB3225 hybrid code changed. For latest product information, visit www.gennum.com
GENNUM CORPORATION
MAILING ADDRESS: P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 Tel. +1 (905) 632-2996 Fax. +1 (905) 632-5946 SHIPPING ADDRESS: 970 Fraser Drive, Burlington, Ontario, Canada L7L 5P5
GENNUM JAPAN CORPORATION Shinjuku Green Tower Building 27F, 6-14-1, Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023 Japan Tel. +81 (03) 3349-5501, Fax. +81 (03) 3349-5505
Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. (c) Copyright February 2002 Gennum Corporation. All rights reserved. Printed in Canada.
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22735 - 3
mm
1.181
MIL

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