The LM4855 is an audio power amplifier system capable of delivering 1.1W (typ) of continuous average power into a mono 8 bridged-tied load (BTL) with 1% THD+N and 115mW (typ) per channel of continuous average power into stereo 32 BTL loads with 0.5% THD+N, using a 5V power supply.
The LM4855 features a 32 step digital volume control and eight distinct output modes. The digital volume control and output modes are programmed through a three-wire SPI serial control interface, that allows flexibility in routing and mixing audio channels.
The LM4855 is designed for cellular phone, PDA, and other portable handheld applications. It delivers high quality output power from a surface-mount package and requires only six external components
| LM4855 | |
| Speaker Channels | Mono |
| Speaker Output Power/Ch (W) | 1.1 |
| Speaker PSRR (dB) | 57 |
| Headphone Output Power/Ch (mW) | 115 |
| Headphone PSRR (dB) | 63 |
| Audio Mode Control | SPI |
| Supply Voltage (Min) (V) | 2.6 |
| Supply Voltage (Max) (V) | 5 |
