MS6890_1 Datasheet, PDF (1/10 Pages) MOSA ELECTRONICS – Mono 1.1W Power Amplifier Low Voltage Operation

MOSA
MS6890
Mono 1.1W Power Amplifier with Shutdown
Mono 1.1W Power Amplifier
Low Voltage Operation
FEATURES
‧Operation range: 2.5V ~ 6.5V
‧Shutdown Current 0.1uA at 5V
‧PSRR at 217Hz, 60dB at 5V
‧Output power, THD+N=1%
R_L=8Ω, 1.1W at 5V, 0.4W at 3.3V, 200mW at 2.5V
‧Unity-gain stable
‧Space-saving SOP8, MSOP8 and enhance thermal pad
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 8Ω
bridged-tied load (BTL). Operation with 2.5V supply, it can drive 200mw into a mono 8Ω. 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 ⁴
+IN ³
-
A1
+
BP ²
SHDN ¹
V_DD ⁶
GND ⁷
Bias
control
- 5 _Vo1
-
A2
+
+ 8 _Vo2
REV 4
1/10
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