The LM48820 is a ground referenced, fixed-gain audio power amplifier capable of delivering 95mW of continuous average power into a 16Ω single-ended load, with less than 1% THD+N from a 3V power supply.
The LM48820 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 number of external components. The LM48820 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other portable applications
| LM48820 | |
| Headphone Channels | Stereo |
| Special Features | Fixed Gain |
| Supply Max (Max) (Volt) | 4.2 |
| Supply Min (Min) (Volt) | 1.6 |
| THD (%) | 0.007 |
| Ground-Centered Outputs | Yes |
| Output Power (W) | 0.095 |
| Load (Min) (ohms) | 16 |
| ISD (uA) | 0.05 |
| PSRR (dB) | 80 |
