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URL: http://www.princeton.com.tw
2W × 2 Class AB Audio Power Amplifier
PT2303
PIN CONFIGURATION
Shutdown
GND
+OUT 1
VDD
-OUT1
-IN 1
GND
+I N 1
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
HP-IN
GND
+OUT 2
VDD
-OUT2
-IN 2
Vref
+I N 2
Shutdown
GND
+OUT 1
VDD
-OUT1
-IN 1
GND
+I N 1
NC
NC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
P T 2303
15
14
13
12
11
HP-IN
GND
+OUT 2
VDD
-OUT2
-IN 2
Vref
+I N 2
NC
NC
P T 2303
PIN DESCRIPTION
Pin Name
Shutdown
GND
+OUT1
VDD
-OUT1
-IN1
GND
+IN1
+IN2
Vref
-IN2
-OUT2
VDD
+OUT2
GND
HP-IN
NC
I/O
I
-
O
-
O
I
-
I
I
I
I
O
-
O
-
I
-
Description
Shutdown pin。Entire IC into the shutdown mode
when this pin connected to the Vcc.
Ground
Channel 1 output (+)
Supply voltage input
Channel 1 output (-)
Channel 1 input (-)
Ground
Channel 1 input (+)
Channel 2 input (+)
Bias reference bypassing
Channel 2 input (-)
Channel 2 output (-)
Supply voltage input
Channel 2 output (+)
Ground
Output mode select, connected to the VDD for SE
mode or GND for BTL mode
No Connect
Pin No.
16 Pins
20 Pins
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
-
1
2
3
4
5
6
7
8
13
14
15
16
17
18
19
20
9 ~ 12
PT2303 V1.2
-3-
December, 2007
PTC [ PRINCETON TECHNOLOGY CORP ]
