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GS3020 PDF даташит

Спецификация GS3020 изготовлена ​​​​«Gennum Corporation» и имеет функцию, называемую «Dynamic Equalizer».

Детали детали

Номер произв GS3020
Описание Dynamic Equalizer
Производители Gennum Corporation
логотип Gennum Corporation логотип 

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GS3020 Даташит, Описание, Даташиты
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DynamEQ® I
Dynamic Equalizer
FEATURES
• handles high input levels (up to 100 mVRMS)
cleanly
• low THD and IMD distortion
• unique twin average detectors
• dual channel signal processing
• adjustable AGC threshold levels
• highpass filter with adjustable corner frequency
• 2:1 compression of high frequencies
• no external capacitors or resistors required
• 30% smaller by volume than DynamEQ® I GS3011
STANDARD PACKAGING
• Hybrid Typical Dimensions
0.250 in x 0.115 in x 0.115 in
(6.35 mm x 2.92 mm x 2.92 mm)
VB
5
C7
2µ2
GS3020 - DATA SHEET
DESCRIPTION
The DynamEQ® I hybrid is a dynamically adaptive loudness
growth equalizer. Its gain and frequency response is
dependent on the user's environment, and is designed for
level dependant frequency response providing treble
increase at low levels (TILL). The unique twin averaging
detector circuit dramatically reduces pumping effects and
is optimized for mild to moderate hearing loss.
DynamEQ® I has two signal paths for dual channelprocessing
incorporating 4 amplifying stages ( A, B, C, D ) and the
AGC processing circuit.
Stage A is a highpass channel with 2:1 compression,
Stage B is a wideband unity gain buffer. The sum of the two
paths gives a high frequency boost to low level signals,
which gradually compresses to a flat response at high
input levels. Stage C is used for volume control adjustment,
while stage D is a class A power amplifier with receiver
bias current adjustment.
C6
0µ1
VREG 10
C1
2µ2
REGULATOR
100k
SLOW
AVERAGE
DETECTOR
100k
FAST
AVERAGE
DETECTOR
RTH 1
R1
CURRENT
REFERENCE
2:1
COMPRESSION
CONTROL
RECTIFIER
68k
VB
CHP 11
IN 9
C2
3n9
12k
-A
-C
MGND 8
GND 4
C3
0µ1
R2
-B
50k
50k 50k
50k
C5
C4 0µ1
0µ1
All resistors in ohms, all capacitors in farads unless otherwise stated.
Patent Pending.
FUNCTIONAL BLOCK DIAGRAM
7
CIN
24k
D
3
OUT
121 RE
1k 515
GS3020
6
COUT
Revision Date: May 1998
Document No. 521 - 05 - 04
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996
Web Site: www.gennum.com E-mail: [email protected]









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GS3020 Даташит, Описание, Даташиты
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ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
VALUE / UNITS
3 VDC
25 mW
-10° C to 40° C
-20° C to 70° C
CAUTION
CLASS 1 ESD SENSITIVITY
RTH 1
RE 2
PAD CONNECTION
11 CHP
OUT 3 4
5 6 7 8 9 10 VREG
GND VB COUT CIN MGND IN
ELECTRICAL CHARACTERISTICS
Conditions: Input Level VIN = -97 dBV, Frequency = 5 kHz, Temperature = 25°C, Supply Voltage VB = 1.3 V
PARAMETER
SYMBOL
CONDITIONS
MIN TYP
Hybrid Current
Minimum Voltage
Total Harmonic Distortion
Input Referred Noise
IAMP
VB
THD
IRN
VIN = 0VRMS
RVC= 15k; VIN= -40dBV at1kHz
NFB 0.2 to 10kHz at 12dB/oct
90
1.1
-
-
190
-
0.1
2.5
Total System Gain
AGC
AV
52.5
55.5
Compression Ratio
Threshold
COMP
VIN= -60dBV & -80dBV, RVC= 15k
1.74:1
-
1.95:1
-94
Compression Gain Range
High Pass Corner Frequency
System Gain in Compression
OUTPUT STAGE
ARANGE
ƒHPC
A80
RVC= 15k; Note 1
CHP - Not Connected
VIN = -80dBV
26 28
- 3.4
45 47
Minimum Transducer Current
Maximum Current Sink
Output Impedance
RE Voltage
REGULATOR
ITR
ISINK
ZOUT
VRE
RE - Not Connected
130 160
36
20 24
52 56
Regulator Voltage
VREG
0.89
All parameters and switches remain as shown in the Test Circuit unless otherwise stated in CONDITIONS column
VPX actual voltage measured on the pin at given condition (X is pin number)
0.95
Notes:
1. ARANGE = VP3 [VIN = -97dBV] - VP3 [VIN = -20 dBV] + 77dBV
MAX
300
-
1
-
58.5
UNITS
µA
V
%
µVRMS
dB
2.11:1
-
-
-
49
Ratio
dBV
dB
kHz
dB
190 µA
- mA
28 k
60 mV
0.99
V
521 - 05 - 04
2









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GS3020 Даташит, Описание, Даташиты
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1.3V
5
C7
2µ2
C6
0µ1
CHP
0µ1
3k9
VIN
10
C1
2µ2
1
11
C2
9
3n9
REGULATOR
100k
SLOW
AVERAGE
DETECTOR
100k
FAST
AVERAGE
DETECTOR
R1
CURRENT
REFERENCE
2:1
COMPRESSION
CONTROL
RECTIFIER
68k
12k
-A
-C
VB
24k
D
C3
0µ1
8
4
R2
-B
50k
50k 50k
50k
C5
C4 0µ1
0µ1
All resistors in ohms, all capacitors in farads unless otherwise stated.
1k 515
76
RVC
100K
GS3020
3
121
Fig.1 Production Test Circuit
1.3V
1.3V
1k
RE
100
5
C7
2µ2
C6
0µ1
EK3024
or
MODEL 39
10
C1
2µ2
1
11
C2
9
3n9
REGULATOR
100k
SLOW
AVERAGE
DETECTOR
100k
FAST
AVERAGE
DETECTOR
R1
CURRENT
REFERENCE
2:1
COMPRESSION
CONTROL
RECTIFIER
68k
12k
-A
-C
VB
24k
D
8
MGND
4
C3
0µ1
R2
-B
50k
50k 50k
50k
C5
C4 0µ1
0µ1
All resistors in ohms, all capacitors in farads unless otherwise stated.
Microphones and receivers shown above are for illustrative purposes only.
Manufacturers can design with other appropriate transducers.
1k 515
GS3020
76
RVC
100k
1.3V
ED1913
or
MODEL 2313
3
121
RE
100
Fig. 2 Example of Hearing Instrument Application
3 521 - 05 - 04










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