MSM9841
Description
The MSM9841 is a mono/stereo record and playback LSI with a built-in 1K bit FIFO for easy interface with external systems or non-semiconductor memory.
Key Features
- 16/8-bit bus interface support
- Supports four pression algorithms for record and playback: 4, 5, 6, 7, 8-bit ADPCM2; 4-bit ADPCM; 8; 16-bit PCM; and 8-bit Nonlinear PCM
- Sampling frequency: 4.0 kHz, 6.4 kHz, 8.0 kHz, 12.8 kHz, 16.0 kHz, 32.0 kHz
- (fosc=4.096 MHz)
- Sampling frequency: 22.05 kHz
- (fosc=5.6448 MHz)
- For the built-in ADC, set the sampling frequency at 16 kHz or less
- DMA interface support
- Volume control (8 steps: 0 dB to –21 dB)
- Built-in 14-bit A/D converter
