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KBA2338 - 3W F ilterless C lass-D Audio Power Amplifier

General Description

The kB2338A is a high efficiency, 3W mono class-D audio power amplifier.

A low noise, filterless PWM architecture eliminates the output filter, reducing external component count, system cost, and simplifying design.

Key Features

  • z z Unique Modulation Scheme Reduces EMI Emissions Efficiency at 3.6V With an 8-ȍ Speaker: í 88% at 400 mW í 80% at 100 mW Low 2.38-mA Quiescent Current and 0.5-µA Shutdown Current 2.5V to 6.0V Wide Supply Voltage Optimized PWM Output Stage Eliminates LC Output Filter Improved PSRR (í72 dB) Eliminates Need for a Voltage Regulator Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor Improved CMRR Eliminates Two Input Coupling Capacitors Internally Generated 250-kHz S.

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Datasheet Details

Part number KBA2338
Manufacturer Kingbor Technology
File Size 288.44 KB
Description 3W F ilterless C lass-D Audio Power Amplifier
Datasheet download datasheet KBA2338 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Kingbor Technology Co.,Ltd TEL:(86)0755-26508846 FAX:(86)0755-26509052 KBA2338 www.DataSheet4U.com 3 W F ilte rle ss C la ss-D Audio P owe r Am plifie r General Description The kB2338A is a high efficiency, 3W mono class-D audio power amplifier. A low noise, filterless PWM architecture eliminates the output filter, reducing external component count, system cost, and simplifying design. Operating in a single 5V supply, kB2338A is capable of driving 4ȍ speaker load at a continuous average output of 3W/10% THD+N or 2W/1% THD+N. The kB2338A has high efficiency with speaker load compared to a typical class AB amplifier. With a 3.6V supply driving an 8ȍ speaker , the efficiency for a 400mW power level is 88%.