LM4667 Datasheet - National Semiconductor

LM4667, Filterless High Efficiency 1.3W Switching Audio Amplifier

LM4667 Filterless High Efficiency 1.3W Switching Audio Amplifier September 2004 LM4667 Filterless High Efficiency 1.3W Switching Audio Amplifier Gen.
The LM4667 is a fully integrated single-supply high efficiency switching audio amplifier.

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Datasheet Details

Part number:

LM4667

Manufacturer:

National Semiconductor

File Size:

757.12 KB

Description:

Filterless High Efficiency 1.3W Switching Audio Amplifier

Features

* an innovative modulator that eliminates the LC output filter used with typical switching amplifiers. Eliminating the output filter reduces parts count, simplifies circuit design, and reduces board area. The LM4667 processes analog inputs with a delta-sigma modulation technique that lowers output noi

Applications

* n Mobile phones n PDAs n Portable electronic devices Typical Application 200405G5 FIGURE 1. Typical Audio Amplifier Application Circuit Boomer ® is a registered trademark of National Semiconductor Corporation. © 2004 National Semiconductor Corporation DS200405 www. national. com LM4667 Connec

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LM4667 Filterless High Efficiency 1.3W Switching Audio Amplifier National Semiconductor

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