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參數(shù)資料
| 型號： | GB570 |
| 英文描述： | GB570 - DynamEQ? II WDRC IC |
| 中文描述： | GB570 - DynamEQ？二WDRC集成電路 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大小： | 118K |
| 代理商： | GB570 |
4
521 - 99 - 00
R
MPO
=0
0
μ
1
50k
0
μ
22
R
VC
=100k
R
c
=22k
0
μ
1
RHI1=200k
RHI2=0
RLO2=0
0
μ
22
7
R
TH
=
∞
RLO1=200k
V
B
=1.3V
3.9k
Pink Noise
Generator
or
1kHz for I/O
2
μ
2
10n
0
μ
2
SLOW
AVERAGE
DETECTOR
FAST
AVERAGE
DETECTOR
CONTROL
10k
RECTIFIER
RAGC_IN
V
B
50k
REGULATOR
GB570
GC570
48k
48k
8k4
1M
1M
14k
12k
1
X
- B
- A
- C
12 dB / Oct
(24 dB / Oct)
BAND SPLIT
FILTER
High Frequency
Expander / Compressor
Low Frequency
Expander / Compressor
R
H
R
L
1
2
5
4
3
6
8
9
12
11
10
13
14
15
16
19
18
17
20
85k6
42k8
Fig. 3 Minimum Component Hearing Instrument Application
All resistors in ohms, all capacitors
in microfarads, unless otherwise stated
Fig. 4 Characterization Circuit (Used to generate typical curves)
All resistors in ohms, all capacitors
in microfarads, unless otherwise stated
0
μ
1
0
μ
22
7
10n
0
μ
22
RVC
100k Log
Any Knowles
or
Microtronics
microphone
Any
Knowles
Class D
receiver
VB
VB
SLOW
AVERAGE
DETECTOR
FAST
AVERAGE
DETECTOR
CONTROL
10k
RECTIFIER
RAGC_IN
V
B
50k
REGULATOR
GB570
GC570
48k
48k
8k4
1M
1M
14k
12k
1
X
- B
- A
- C
12 dB / Oct
(24 dB / Oct)
BAND SPLIT
FILTER
High Frequency
Expander / Compressor
Low Frequency
Expander / Compressor
R
H
R
L
0
μ
1
0
μ
2
1
2
5
4
3
6
8
9
12
11
10
13
14
15
16
19
18
17
20
85k6
42k8
0
μ
1
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