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Fax: 886-2-29174598
URL: http://www.princeton.com.tw
2W × 2 Class AB Audio Power Amplifier
PT2303
APPLICATION CIRCUIT
Rf
20k
Ri
6
8
-IN1
+IN1
220uF
CH1 IN
-OUT1
+OUT1
5
3
AMP1N
20k
VDD
1uF
BTL/SE
1k
Sense
ON
Shut
1
Down
POWER
BLOCK
OFF
VDD
VDD
4,13 VDD
10 Vref
ShutDown
AMP1P
100k
CB
1uF
CVDD
10uF
HP-IN 16
-OUT2 12
SE/BT L
2,7,15
GND
100k
HEADPHONE
11 -IN2
AMP2N
9
+IN2
1uF
220uF
Ri
1k
CH2 IN
20k
Rf
20k
+OUT2 14
AMP2P
PT2303 V1.2
- 9 -
December, 2007