Oki Electric Industry MSM9842
The MSM9842 is a mono/stereo playback LSI with a built-in 1K bit FIFO for easy interface with external systems or non-semiconductor memory. It utilizes multiple playback modes, including the new ADPCM2 algorithm, which allows for even higher quality sound reproduction. The playback function of the MSM9842 is controlled by an MCU via 8/16-bit bus interface.| Part No. | MSM9842 |
|---|---|
| Datasheet | MSM9842 Download |
| Manufacturer | Oki Electric Industry |
| Description | Playback LSI with Built-in FIFO |
| Buy | Stock & Price |
GENERAL DESCRIPTION
FEATURES
● 16/8-bit bus interface support● FIFO capacity: User-definable (256/512/1024 bits) (buffering time of 32 ms when using 8 kHz sampling frequency, 4-bit ADPCM2/ADPCM, and in monaural playback)
● Supports four compression algorithms for 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, 44.1 kHz (fosc=5.6448 MHz)
● DMA interface support
● Volume control (8 steps: 0 dB to –21 dB)
● Built-in 14-bit D/A converter
● Built-in low pass filter (LPF)
● Power supply voltage: 2.7 V to 5.5 V
● Package: 56-pin plastic QFP (QFP56-P-910-0.65-2K) (Product name: MSM9842GA) 1/9 FEDL9842-02 ¡ Semiconductor MSM9842 BLOCK DIAGRAM AOUTL AOUTR LPF DAC DAC LPF AVDD AGND DVDD DGND Volume Controller EMP MID FUL/DREQR CH/DACKR FIFO External DAC I/F DASD SOCK ADPCM2/ADPCM/PCM/Non-linear PCM Synthesizer D15 to D0 WR RD CS D...
