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參數(shù)資料
| 型號(hào)： | MSM9841 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Recording and Playback LSI with Built-in FIFO |
| 中文描述： | 錄制和播放芯片與內(nèi)置的FIFO |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大?。?/td> | 127K |
| 代理商： | MSM9841 |
1/9
Semiconductor
MSM9841
FEDL9841-04
GENERAL 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. It utilizes multiple record and
playback modes, including the new ADPCM2 algorithm, which allows for even higher quality
sound reproduction. The record and playback functions of the MSM9841 is controlled by an
MCU via 8/16-bit bus interface.
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 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*, 44.1 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
Built-in 14-bit D/A converter
Built-in low pass filter (LPF) : (input side: analog LPF)
: (output side: digital LPF)
Power supply voltage: 2.7 V to 5.5 V
Package:
56-pin plastic QFP (QFP56-P-910-0.65-2K) (Product name: MSM9841GS-2K)
*note 32 kHz, 22.05 kHz and 44.1 kHz are available only for playback.
Recording and Playback LSI with Built-in FIFO
This document contains minimum specifications. For full specifications, please contact your
nearest Oki office or representative.
This version: Jul. 2000
Previous version: Jun. 1999
FEDL9841-04
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| MSM9841G3-2K | 制造商:ROHM Semiconductor 功能描述: |
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| MSM9841GS-2K | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Recording and Playback LSI with Built-in FIFO |
| MSM9842 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Playback LSI with Built-in FIFO |
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