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EUA4890

Eutech Microelectronics
Part Number EUA4890
Manufacturer Eutech Microelectronics
Description 1 Watt Audio Power Amplifier
Published Jul 18, 2014
Detailed Description EUA4890 1 Watt Audio Power Amplifier DESCRIPTION The EUA4890 is an audio power amplifier designed for portable communic...
Datasheet PDF File EUA4890 PDF File

EUA4890
EUA4890


Overview
EUA4890 1 Watt Audio Power Amplifier DESCRIPTION The EUA4890 is an audio power amplifier designed for portable communication device applications such as mobile phone applications.
The EUA4890 is capable of delivering 1.
0W of continuous average power to an 8Ω BTL and with less than 1% distortion (THD+N) from a 5.
0V power supply, and 350mW to a 8Ω BTL load from a 3V power supply.
The EUA4890 provides high quality audio while requiring few external components and minimal power consumption.
It features a low-power shutdown mode, which is achieved by driving the SHUTDOWN pin with logic low.
The EUA4890 contains circuitry to prevent from ”pop and click” noise that would otherwise occur during turn-on and turn-off transitions.
For maximum flexibility, the EUA4890 provides an externally controlled gain (with resistors), as well as an externally controlled turn-on and turn-off times (with the bypass capacitor).
The EUA4890 is available in a MSOP-8 , 3mm×3mm DFN package.
FEATURES z z z z z z z z z z 2.
5-5.
5V operation 65dB PSRR at 217Hz, VDD=5V 0.
1µA ultra low current shutdown mode Improved pop & click circuitry No output coupling capacitors, snubber networks or bootstrap capacitors required Thermal shutdown protection Unity-gain stable External gain configuration capability BTL output can drive capacitive loads RoHS compliant and 100% lead(Pb)-free APPLICATIONS z z z Mobile Phones PDAs Portable electronic devices VÛm w`R •yÑb € Block Diagram ech.
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DS4890 Ver 1.
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2006 1 N ~§Nãt ÿ mñW3^ VÛmw`R• yÑb€g –PQlSø Tel: 0755-8398 3377 / 135 9011 2223 http://www.
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Audio Amplifier with Single –Ended Input VÛ mw `R • yÑ b€ w w w .
g o f o t e c h .
c o m Figure3.
Audio Amplifier with Differential Input DS4890 Ver 1.
7 Dec.
2006 2 N~§NãtÿmñW3^VÛmw`R•yÑb€g–PQlSø Tel: 0755-8398 3377 / 135 9011 2223 http://www.
gofotech.
com EUA4890 Pin Configurations Package Type ...



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