UTC 3541
CLASS AB STEREO HEADPHONE DRIVER
WITH MUTE
DESCRIPTION
The UTC
3541
is a class AB stereo headphone
driver with Mute feature.
CMOS IC
SOP-8
FEATURES
* Built-in Mute Function
* No Switch ON/OFF pops
* Short-circuit protection
* Low Power Consumption
* Large Output Voltage Swing
* High Signal-to-Noise Ratio
DIP-8
*Pb-free plating product number: 3541L
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
PIN NAME
OUT 1
Mute
IN 1
V
SS
IN 2
BIAS
OUT 2
V
DD
I/O
O
I
I
I
I
O
DESCRIPTION
Output pin for Channel A
Mute control input, high for normal operation
Input pin for Channel A
Power ground
Input pin for Channel B
Right channel bias input pin
Output pin for Channel B
Power supply input
BLOCK DIAGRAM
V
DD
8
OUT 2
7
BIAS
6
BIAS
B
0dB
MUTE
A
+
0dB
+
IN 2
5
1
OUT 1
2
Mute
3
IN 1
4
V
SS
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R502-035,A
www.unisonic.com.tw