Datasheet Details
| Part number | LM4831 |
|---|---|
| Manufacturer | National Semiconductor (now Texas Instruments) |
| File Size | 576.00 KB |
| Description | Multimedia Computer Audio-Chip |
| Datasheet |
 LM4831 Datasheet
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General Description
The LM4831 is a monolithic integrated circuit that provides a stereo three input mixer, two stereo input analog multiplexer, a stereo line out and a dual 1W bridged audio power amplifier.
In addition, a low noise microphone preamp is included on-chip.
Key Features
- an externally controlled, low-power consumption shutdown mode, as well as both headphone and docking station modes. To temporarily override the shutdown mode and allow audio signals to be amplified, the LM4831 provides four “beep” pins. Key Specifications n THD+N at 1W into 8Ω n Microphone Input Referred Noise n Supply Current - Bridged Mode n Shutdown Current 0.6% (typ) 10µV (typ) 16mA (typ) 2µA (typ) Features Stereo 1W audio power amplifier “Click and pop” suppression circuitry Stereo three.