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PDF GS3011 Data sheet ( Hoja de datos )
| Número de pieza | GS3011 | |
| Descripción | DynamEQ I Dynamic Equalizer | |
| Fabricantes | Gennum | |
| Logotipo |  |
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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
STANDARD PACKAGING
• Hybrid typical dimensions
0.260 in x 0.150 in x 0.120 in
(6.6 mm x 3.81 mm x 3.05 mm)
DynamEQ® I
Dynamic Equalizer
GS3011 - HYB 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 channel
processing 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.
VB GND
85
VREG 3
RTH 9
C1
2µ2
R1
68k
C7
2µ2 R7
C6
0µ1 R6
100k
100K
7 15 1 14 16
8
REGULATOR
SLOW
AVERAGE
DETECTOR
FAST
AVERAGE
DETECTOR
0.92V
17
CURRENT
REFERENCE
2:1
COMPRESSION
CONTROL
RECTIFIER
2
GC514
VB
CHP 4
AIN 2
C3
0µ1
C2
3n9
R2
50k
MGND 1
3
12
12k
-A
-B
13
R3
50k
All resistors in ohms, all capacitors in farads unless otherwise stated.
Patent Pending.
-C
6 11
C5
9
0µ1
R5 50k
R4
50k
C4
0µ1
7
VC1
24k
5
+-
-D +
4
340
10
6
VC2
GS3011
10
DOUT
11 RE
FUNCTIONAL BLOCK DIAGRAM
Revision Date: May 1998
Document No. 520 - 66 - 07
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]
1 page  
50
VIN = -96dBV
40
VIN= -90dBV
VIN = -70dBV
30
VIN = -50dBV
20 VIN = -30dBV
VIN = -20dBV
10
0
20 100
1k
FREQUENCY (Hz)
10k 20k
Fig. 5 Frequency Response for Different Input Levels
50
VIN = -50dBV
40
30
20
RVC=100 kΩ
RVC=47 kΩ
RVC=22 kΩ
RVC=15 kΩ
10
0
20
100
1k
FREQUENCY (Hz)
10k 20k
Fig. 7 Frequency Response for Different RVC Values
0
-10
5kHz
-20
2kHz
-30 1kHz
-40 RTH = ∞
-50
-60
-70
-80
-100
RTH = 0
-90 -80 -70
5kHz
2kHz
1kHz
-60 -50 - 40 -30 -20
INPUT LEVEL (dBV)
Fig. 6 I/O Transfer Function for Different Test
Frequencies. Shown for Min/Max RTH Resistors Values
50
VIN=-96dBV
40
No Capacitance
30 CHP=68 nF
CHP=33nF
CHP=10nF
20 CHP=0.1µF
10 VIN=-20dBV
0
20 100
1k
FREQUENCY (Hz)
10k 20k
Fig. 8 Corner Frequency vs CHP Capacitor Value
0
-10
ƒ = 1kHz
-20
-30
-40
RTH = 0Ω
-50
22kΩ
-60 47kΩ
100kΩ
-70 RTH = ∞
-80
-100 -90 -80 -70
-60 -50 - 40 -30 -20
INPUT LEVEL (dBV)
Fig. 9 I/O Transfer Function for Different RTH Resistors
50
RTH = ∞
= 100kΩ
40 = 47kΩ
= 22kΩ
30 = 0
20
10
VIN=-96dBV
0
20 100 1k 10k 20k
FREQUENCY (Hz)
Fig. 10 Frequency Characteristics for Different
RTH Values
5 520 - 66 - 07
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet GS3011.PDF ] | |
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