PT2253A 查看數據表（PDF） - Princeton Technology
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PT2253A Datasheet PDF : 20 Pages
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Electronic Volume Controller IC
APPLICATION CIRCUIT 4
SINGLE POWER SUPPLY
0.15µF
51K
3
2
8
+1
-
4
LM358
110K
Input
(Left Channel)
68pF
Output
(Left Channel)
Vcc
Vcc
10µF
C1 +
10µF
C3 +
10K
10K
+
100µF
Vss
Vcc
L-OUT1 R-OUT1
L-IN1
R-IN1
A-GND A-GND
L-IN2
R-IN2
L-OUT2 R-OUT2
/INH
U/D
DCO
OSC
PT2253A
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2253A
Vcc (6 ~ 12V)
0.15µF
0.1µF
51K
5
6
8
+7
-
4
LM358
110K
10µF
C2
68pF
Input
(Right Channel)
10µF
C4
Output
(Right Channel)
Vcc +4.7µF
100K
Up Key
33K
IN4148
12
1
IN4148
2
2
2
+
1µF
2
2
Note:
Since the buffer amp between Att-1 and Att-2 is already 10dB voltage gain, higher input level may
cause OP amp’s output clipping. To avoid unwanted distortion, the input signal level applied at IN-1
should not be over 1Vrms.
PT2253A V2.8
- 15 -
December, 2005
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