MOSA
Mono 1.1W Power Amplifier
Low Voltage Operation
FEATURES
•Operation
range: 2.5V~5.5V
•Shutdown
Current 0.1uA at 5V
•PSRR
at 217Hz, 60dB at 5V
•Output
power, THD+N=1%
R
L
=8 , 1.1W at 5V, 0.4W at 3.3V, 200mW at 2.5V
•Unity-gain
stable
•Space-saving
SOP8, MSOP8 and enhance thermal pad
MS6890
Mono 1.1W Power Amplifier with Shutdown
APPLICATIONS
•Portable
electronic devices
•PDAs
•Communication
headsets
•Cross-reference:
LM4890, LM4893, TS4890
TPA751, MAX9716
DESCRIPTION
The MS6890 is a low distortion power amplifier that can drive 1.1W of continuous average power into a mono 8
bridged-tied load (BTL). Operation with 2.5V supply, it can drive 200mw into a mono 8 . The BTL configuration
eliminates the need for external coupling capacitors on the output in most applications. The MS6890 is unity-gain
stable and can be configured by external gain-setting resistors.
The MS6890 has good feature for portable equipment, these features include the low voltage operation, micropower
consumption shutdown mode, enhance thermal pad and small package SOP8, MSOP8, make the MS6890 ideally
suited for use in portable electronic equipments.
BLOCK DIAGRAM
-IN
+IN
4
3
-
+
A1
-
5
Vo1
-
BP
SHDN
V
DD
GND
2
1
6
7
+
Bias
control
A2
+
8
Vo2
REV 1.0
1
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MOSA [ MOSA ELECTRONICS ]
