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GA3216のメーカーはON Semiconductorです、この部品の機能は「Pre-configured DSP System」です。 |
部品番号 | GA3216 |
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部品説明 | Pre-configured DSP System | ||
メーカ | ON Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとGA3216ダウンロード(pdfファイル)リンクがあります。 Total 16 pages
FOUNDATION GA3216
Pre-configured DSP System
for Hearing Aids
Description
The Foundation GA3216 hybrid is a trimmer−configurable DSP
system based on a two−channel compression circuit. It can efficiently
replace traditional hearing−aid compression circuits without
compromising fundamental performance requirements.
A trimmer interface supports manual circuit configuration. It
continuously monitors trimmer positions and translates them into the
hearing−aid parameters of choice. A serial data interface provides full
programmability at the factory and in the field.
The Foundation GA3216 includes in−channel squelch to attenuate
microphone and circuit noise in quiet environments. It also includes
low−distortion compression limiting and programmable high and low
cut filters, as well as five configurable equalization filters. Unused
blocks can be powered down to save battery current, for example,
when using the device in single−channel mode.
The Foundation GA3216 Hybrid code programmed into the
GC5020 controller chip is ‘1’.
Features
• Efficient, High Fidelity 1 or 2−Channel WDRC Signal Processing
• Fully Programmable via Serial Data Interface
• High−Fidelity Audio Quality
• Four Trimmer Inputs plus Volume Control
• Flexible Trimmer/Parameter Assignments
• Optional Two−Terminal or Three−Terminal Trimmers
• Choice of Wideband or Independent 2−Channel Level Detection
• Choice of Two Strategies for AGC−I Parametric Adjustment
• 6, 12 or 24 dB/Octave Band Split Filter or Configurable as
Single−Channel Compressor
• In−Channel, Low Level Squelch Control (1:2 Expansion)
• Output Compression Limiting (AGC−O)
• Flexible Pre− and Post−Emphasis Filters
• Four Independent Memories
• Pulse−Density−Modulated Output Stage Drives Zero−Bias
2−Terminal Receivers
• High-Power Drive Capability
• Unused Blocks can be Powered Down
• thinSTAX® Packaging
• Also Available as E1 RoHS Compliant Hybrid
thinSTAX Packaging
• Hybrid Typical Dimensions:
0.190 x 0.123 x 0.060 in.
(4.82 x 3.12 x 1.52 mm)
www.onsemi.com
20 PAD
HYBRID
CASE TBD
MGND
MS2
MS
SDA
VB
PAD CONNECTION
IN T
15 16 17
1
14 18
13
19
12
11 20
2
3
4
5
6
VBP 10
9
8
7
OUT− OUT+
(Bottom View)
VREG
TR1
TR2
TR3
VC
GND1
PGND
MARKING DIAGRAM
GA3216−E1
XXXXXX
GA3216
E1
XXXXXX
= Specific Device Code
= RoHS Compliant Hybrid
= Work Order Number
ORDERING INFORMATION
See detailed ordering and shipping information on page 14 of
this data sheet.
© Semiconductor Components Industries, LLC, 2015
August, 2015 − Rev. 12
1
Publication Order Number:
GA3216/D
1 Page FOUNDATION GA3216
Table 2. ELECTRICAL CHARACTERISTICS − PART 1
(Conditions: Supply Voltage VB = 1.3 V; Temperature = 25°C, 16 kHz bandwidth)
Parameter
Symbol
Conditions
Min Typ Max Units
Hybrid Current
IAMP
All functions, 24 kHz sampling rate
−
540
−
mA
All functions, 32 kHz sampling rate
−
650
−
Minimum Operating Supply Voltage
Supply Voltage Turn On Threshold
Supply Voltage Hysteresis
Low Battery Warning Voltage
VBOFF
VBON
−
−
Ramp down
Ramp up
VBON − VBOFF
Ramp down
0.95
−
0.980
V
1.065 1.10 1.160
V
− 150 − mV
1.06 1.10 1.14
V
Supply Voltage During Communication
EEPROM Burn Cycles
VBC
−
During Communication
(Note 2)
1.20
100 k
1.30
−
−V
− cycles
Low Frequency System Bandwidth
−
− − 130 − Hz
High Frequency System Bandwidth
−
32 kHz sampling frequency
24 kHz sampling frequency
− 16 − kHz
− 12 −
Total Maximum System Gain
AV VIN = −95 dBV at 3 kHz; 82 83 84 dB
squelch disabled (Note 1)
Converter Gain
Total Harmonic Distortion
THD at Maximum Input
Clock Frequency
REGULATOR
ACONV
THD
THDM
fclk
A/D + D/A gain
VIN = −40 dBV
VIN = −14 dBV, HRX − ON
−
28
−
−
1.963
29
−
−
2.048
30
1
3
2.115
dB
%
%
MHz
Regulator Voltage
Regulator Supply Rejection
VOLUME CONTROL AND TRIMMERS
VREG
PSRRREG
−
−
0.87 0.90 0.93
V
− 36 − dB
Volume Control or Trimmer
Resistance
Volume Control Range
MS AND MS2 INPUT
RVC Two−terminal Trimmer (Note 3)
−
200
−
kW
Three−terminal Trimmer (Note 3)
0.1
−
1 MW
DA − − 48 − dB
Pull Down / Up Resistance
Logic 1 Voltage
Logic 0 Voltage
INPUT
−
−
−
− − 1 − MW
−
− VREG −
V
− − 0 −V
Input Referred Noise
IRN
Bandwidth 100 Hz − 8 kHz
−
−109
−108
dBV
Input Impedance
Crosstalk
ZIN − 13.5 16 18.5 kW
−
Between microphone and
− −60 − dB
telecoil inputs
Maximum Input Level − − − −14 − dBV
Input Dynamic Range
− HRX − ON, − 95 − dB
Bandwidth 100 Hz − 8 kHz
OUTPUT
Maximum RMS Output Voltage
−
0 dBFS f = 1 kHz
− −1 − dBV
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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.
2. Sample tested.
3. Volume control is log taper, trimmers are linear taper.
www.onsemi.com
3
3Pages FOUNDATION GA3216
TYPICAL APPLICATIONS
VB
VREG2 19
VREG 1
IN
16
3k9 17
1k T
REGULATOR
A/D
MGND 15
GA3216
MS2
14
MS
13
SDA
12
PROGRAMMING
INTERFACE
EEPROM
TWIN DETECTOR
T−coil EQ
1st to 3rd
ORDER
LC
HP
24 db/oct
BAND SPLIT
FILTER
LP
COMPRESSOR
TWIN DETECTOR
SQUELCH
COMPRESSOR
TWIN DETECTOR
SQUELCH
S
TRIMMER INTERFACE
5 2 3 4 18
VC TR1 TR2 TR3 TR4
1st or 2nd
ORDER
HC
EQ1
EQ2
EQ3
Note: All resistors in ohms and all capacitors in farads, unless otherwise stated.
TONE
GENERATOR
11
EQ5
EQ4
AGC−O
TWIN DETECTOR
VC GAIN
10
PEAK
CLIPPING
D/A
HBRIDGE
8
9
7
20 6
Figure 2. Test Circuit
TYPICAL APPLICATIONS (Cont’d)
VB
MS2
OUT
LP FILTER
19
1 REGULATOR
16
A/D
17
15
GA3216
MS
To Programming box
14 13
12
PROGRAMMING
INTERFACE
EEPROM
TWIN DETECTOR
T−coil EQ
1st to 3rd
ORDER
LC
HP
24 db/oct
BAND SPLIT
FILTER
LP
COMPRESSOR
TWIN DETECTOR
SQUELCH
COMPRESSOR
TWIN DETECTOR
SQUELCH
TRIMMER INTERFACE
1st or 2nd
S ORDER
HC
EQ1
EQ2
EQ3
5 2 3 4 18
TONE
GENERATOR
11
EQ5
EQ4
AGC−O
TWIN DETECTOR
VC GAIN
10
PEAK
CLIPPING
D/A
HBRIDGE
8
9
7
20 6
VC
200k(log)
Note: All resistors in ohms and all capacitors in farads, unless otherwise stated.
Figure 3. Example of Programmable Application Circuit
www.onsemi.com
6
6 Page | |||
ページ | 合計 : 16 ページ | ||
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部品番号 | 部品説明 | メーカ |
GA3216 | Pre-configured DSP System | ON Semiconductor |
GA3219 | Pre-configured DSP System | ON Semiconductor |