The LM48824 is a Class G, ground-referenced stereo headphone amplifier designed for portable devices. The LM48824 features National’s ground-referenced architecture, which eliminates the large DC blocking capacitors required by traditional headphone amplifiers, saving board space and minimizing system cost.
The LM48824 takes advantage of National’s patent-pending Class G architecture offering power savings compared to a traditional Class AB headphone amplifier. Additionally, output noise is improved by common-mode sensing that corrects for any differences between the amplifier ground and the potential at the headphone return terminal, minimizing noise created by any ground mismatches
| LM48824 | |
| Headphone Channels | Stereo |
| Volume Control | Yes |
| Supply Max (Max) (Volt) | 5.5 |
| Supply Min (Min) (Volt) | 2.4 |
| THD (%) | 0.02 |
| Ground-Centered Outputs | Yes |
| Class-G | Yes |
| Output Power (W) | 0.037 |
| Load (Min) (ohms) | 16 |
| ISD (uA) | 2.5 |
| PSRR (dB) | 100 |
