The LM4982 is a ground referenced, variable gain audio power amplifier capable of delivering 80mW of continuous average power into a 16 single-ended load with less than 1% THD+N from a 3V power supply. The I2C volume control allows +18 to -76 dB gain settings.
The LM4982 utilizes advanced charge pump technology to generate the LM4982's negative supply voltage. This eliminates the need for output-coupling capacitors typically used with single-ended loads.
IntelliSense is a new circuit technology that allows the LM4982 to detect whether a mono or stereo headphone plug has been inserted into the output jack.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components
| LM4982 | |
| Headphone Channels | Stereo |
| Volume Control | Yes |
| Supply Max (Max) (Volt) | 4 |
| Supply Min (Min) (Volt) | 1.6 |
| Ground-Centered Outputs | Yes |
| Output Power (W) | 0.047 |
| Load (Min) (ohms) | 16 |
| ISD (uA) | 0.1 |
| PSRR (dB) | 66 |
