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器件描述：Mono 1.9W / Stereo 300mW Power Amplifier Low Voltage Operation, Pop Noise Free
器件厂商：MOSA [MOSA ELECTRONICS]
厂商主页：http://www.mosanalog.com/
文件大小：747.32KB
文件页数：12
PDF阅读：MS6853MU.pdf (点击阅读器件资料)
摘要：
MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
REV 1.1 1 www.mosanalog.com
Mono 1.9W / Stereo 300mW Power Amplifier
Low Voltage Operation, Pop Noise Free
FEATURES
?Operation range: 2.7V~5.5V
?Shutdown Current 18uA at 5V
?Output power, THD+N=1%
BTL, R
L
=3?, 2.1W at 5V
BTL, R
L
=4?, 1.9W at 5V, 0.83W at 3.3V, 500mW at 2.7V
BTL, R
L
=8?, 1.2W at 5V, 0.54W at 3.3V, 350mW at 2.7V
SE, R
L
=8?, 300mW at 5V, 125mW at 3.3V, 85mW at 2.7V
SE, R
L
=32?, 90mW at 5V, 43mW at 3.3V, 25mW at 2.7V
?Headphone sense
?Unity-gain stable, pop noise free
?Space-saving MSOP10 (enhan ce thermal pad), TSSOP14
APPLICATIONS
?Desktop computer’s sound card
?Portable audio devices
?PDA’s
?Handheld games
? Communication headsets
? Cross-reference:
SSM2250, LM4853
DESCRIPTION
The MS6853 is a low distortion power amplifier that can drive a set of 1.9W of continuous average power into a mono
4? bridged-tied load (BTL) or 2 * 90mW into stereo 32? single ended (SE) loads headphone. It can automatically
switch between mono BTL and stereo SE modes utilizing a headphone sense pin. The BTL configuration eliminates
the need for external coupling capacitors on the output in most applications. The unity gain stable MS6853’s gain is set
by external gain-setting resistors.
The MS6853 has good feature for portable equipment, these features include the low voltage operation, micropower
consumption shutdown mode, enhance thermal pad and small package MSOP10, TSSOP14, make the MS6853 ideally
suited for use in portable digital audio equipments.
BLOCK DIAGRAM
SHUTDOWN
A2
-
+
L-IN
GND
V
DD
BYPASS
R-IN
BTL OUT+
R-OUT
L-OUT / BTL OUT-
HP-IN
V
DD
Mono / Stereo Mode
Switching Circuitry
A3
-
+
A1
-
+
V
DD
Click/Pop
Reduction
Bias
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