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參數(shù)資料
| 型號(hào)： | GK504 |
| 英文描述： | GK504 - Low Current Preamplifier with Telecoil Preamp and Output Limiting |
| 中文描述： | GK504 -低電流前置放大器，Telecoil前置功放，輸出限制 |
| 文件頁數(shù)： | 5/6頁 |
| 文件大?。?/td> | 102K |
| 代理商： | GK504 |
5
520 - 47 - 05
A
=1.3 V
DC
V
B
5
R
P1
6
R
MPO
=0
10
1
10k
3
R
MIC
2
1
μ
0
4
100k
R
VC
9
C
B
100k
R
GT
R
P2
7
8
0
μ
22
0
μ
1
0
μ
1
CS
+
BUFFER
AC SOURCE
50
R
MIC
3k92
AC
VOLTMETER
R
L
50k
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
20
-90 -86 -82 -78 -74 -70
INPUT (dBV)
10
9
8
7
6
5
4
3
2
1
0
200
2K 20K
FREQUENCY (Hz)
Fig. 8 Frequency Response for Various C
IN
Values
C
IN
= 0.22
μ
C
IN
= 0.033
μ
C
IN
= 0.1
μ
C
IN
= 0.047
μ
Fig. 9 Distortion vs Input Level (R
GT
= R
VC
= 100k)
R
T
All resistors in ohms, all capacitors in
μ
F, unless otherwise stated.
This circuit as shown was used to generate the following graphs unless
otherwise stated.
Fig. 5 Characterization Circuit
O
Fig. 7 MPO for Various R
MPO
Values
R
VC
= 100k
R
VC
= 33k
R
VC
= 10k
R
VC
= 3.3k
-140 -120 -100 -80 -60 -40 -20
INPUT (dBV)
Fig. 6 I/O for Various R
VC
Values
-5
-15
-25
-35
-45
-55
-65
-75
-85
O
-10
-14
-18
-22
-26
-30
-34
-38
-100 -80 -60 -40 -20
INPUT (dBV)
R
MPO
= 10k
R
MPO
= 3.3k
R
MPO
= 0
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