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LM4890,pdf datasheet (1 Watt Audio Power Amplifier)pdf
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2013-09-20 | 1积分 | 1.52MB |  0 次下载

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文档简介
标签: LM4890

LM4890

datasheet

datasheet

1

datasheet

Watt

Watt

Audio

Watt

Power

Power

Amplifier

Amplifier

The HWD2190 is an audio power amplifier primarily designedfor demanding applications in mobile phones and other portablecommunication device applications. It is capable ofdelivering 1 watt of continuous average power to an 8Ω BTLload with less than 1% distortion (THD+N) from a 5VDCpower supply.audio power amplifiers were designed specifically toprovide high quality output power with a minimal amount ofexternal components. The HWD2190 does not require outputcoupling capacitors or bootstrap capacitors, and therefore isideally suited for mobile phone and other low voltage applicationswhere minimal power consumption is a primary requirement.The HWD2190 features a low-power consumption shutdownmode, which is achieved by driving the shutdown pin withlogic low. Additionally, the HWD2190 features an internal thermalshutdown protection mechanism.The HWD2190 contains advanced pop & click circuitry whicheliminates noises which would otherwise occur duringturn-on and turn-off transitions.The HWD2190 is unity-gain stable and can be configured by external gain-setting resistors.

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