Datasheet Details
| Part number | LM4920 |
|---|---|
| Manufacturer | National Semiconductor (now Texas Instruments) |
| File Size | 1.23 MB |
| Description | Stereo Headphone Amplifier |
| Datasheet |
 LM4920 Datasheet
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General Description
The LM4920 is a ground referenced, fixed-gain audio power amplifier capable of delivering 80mW of continuous average power into a 16Ω single-ended load with less than 1% THD+N from a 3V power supply.
Key Features
- a new circuit technology that utilizes a charge pump to generate a negative reference voltage. This allows the outputs to be biased about ground, thereby eliminating output-coupling capacitors typically used with normal single-ended loads. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4920 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobi.