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Details, datasheet, quote on part number:LM4681
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| Part: | LM4681 |
| Category: | Multimedia => Audio => Amplifiers |
| Description: | 10 Watt Stereo CLASS D Audio Power Amplifier with Stereo Headphone Amplifier and I2C/SPI Volume Control
The LM4681 is a fully integrated single supply, CLASS D audio power amplifier solution. The LM4681 utilizes a proprietary balanced pulse-width modulation technique that lowers output noise and THD and improves PSRR when compared to conventional pulse width modulators.
The LM4681 also features a stereo headphone amplifier that delivers 80mW into a 32 headset with less than 0.5% THD.
The LM4681's I2C/SPI (selectable) volume control has a +30dB to -48dB range when speakers are driven and a range of +13dB to -65dB when headphones are connected. All amplifiers are protected by thermal shutdown. Additionally, the high efficiency power amplifiers have output current limit.
With a 8 load, the IC's efficiency for a 6W power level is 85%. The IC features click and pop reduction circuitry that minimizes audible popping during device turn-on and turn-off. The LM4681 is available in a 48-lead LLP package, ideal for portable and desktop computer applications. |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LM4681 datasheet File size : 1007 kB |
| Request For quote: | Find where to buy LM4681
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