RT9104 RICHTEK [Richtek Technology Corporation], RT9104 Datasheet - Page 3

• Manufacturer Part Number: RT9104
• Description: 3W Stereo Class-D Audio Power Amplifier with DC Volume Control
• Manufacturer: RICHTEK [Richtek Technology Corporation]

Functional Pin Description
Function Block Diagram
DS9104-01 April 2011
SOP-16/DIP-16
5, 7, 10, 12
4, 13
11
14
15
16
1
2
3
6
8
9
Pin No.
VOLUME_IN
17 (Exposed Pad)
WQFN-16L 3x3
BYPASS
3, 10, 5, 8,
SHDN
AVDD
GND
INR
INL
2, 11
15
16
12
13
14
1
4
7
9
6
INR
BYPASS
ROUT+
PVDD
GND
ROUT−
AVDD
LOUT−
LOUT+
VOLUME_IN Volume Control Pin. DC in for controlling volume.
INL
SHDN
Bypass
Bypass
Pin Name
Bypass
Bypass
Volume
Control
Circuit
DC
-
+
-
+
-
+
-
+
Right Channel Audio Signal Input.
Common Mode Voltage Output.
Positive Right Channel BTL Output.
Power Supply.
Ground. The exposed pad must be soldered to a large PCB
and connected to GND for maximum power dissipation.
Negative Right Channel BTL Output.
Shutdown Pin, Enable when SHDN = ’1’,
Disable when SHDN = ’0’ .
Analog Reference Input Voltage. Connect to a regulator
output voltage as better.
Negative Left Channel BTL Output.
Positive Left Channel BTL Output.
Left Channel Audio Signal Input.
Over Temperature
/Over Current
Protection
Generator
Generator
PWM
PWM
Pin Function
Output
Output
Power
Power
Stage
Depop
Circuit
Stage
PVDD
LOUT+
LOUT-
PGND
PVDD
ROUT+
ROUT-
PGND
RT9104
www.richtek.com
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