msm9841 Oki Semiconductor, msm9841 Datasheet
msm9841
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msm9841 Summary of contents
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... Oki office or representative. 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 ...
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... RD CS D/C BUSY AOUTL output side ADC DAC LPF Volume Controller ADPCM2/ADPCM/PCM Analyzer ADPCM2/ADPCM/PCM/Non-linear PCM Synthesizer DMA I/F Timing Controller DREQL DACKL IOW IOR VCK XT XT FEDL9841-04 MSM9841 AOUTR output side DAC AGND LPF DV DD DGND ADSD DASD SIOCK TEST0 TEST1 RESET 2/9 ...
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... PIN CONFIGURATION (TOP VIEW D10 13 D11 Connection 56-pin plastic QFP FEDL9841-04 MSM9841 BUSY FUL/DREQR 36 MID 35 EMP 34 CH/DACKR RESET AOUTR 3/9 ...
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... IOR and IOW signals are accepted. When stereo playback is selected, input to DACKL a DACKL I DMA transfer acknowledge signal for left FIFO memory. Active "L" can be changed to active "H" by command input. If DMA transfer is not used, set this pin to "H" level. FEDL9841-04 Description MSM9841 4/9 ...
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... Semiconductor PIN DESCRIPTIONS Symbol Type Write pulse input pin to write external memory data to MSM9841 during DMA transfer. IOW I If DMA transfer is not used, set this pin to "H" level. Read pulse input pin to read data of MSM9841 during DMA transfer. IOR I If DMA transfer is not used, set this pin to " ...
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... MHz, whithout load =AV =2 fosc=4.096 MHz, whithout load At power down, without load Ta=–40 to +70°C DDS At power down, without load Ta=–40 to +85°C FEDL9841-04 MSM9841 Rating Unit –0.3 to +7.0 V –0 +0 –55 to +155 °C Range Unit 2.7 to 5.5 V – ...
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... Interface when DMA controler is used (16-bit bus) Memory DMA Controller MCU 2) MCU & external memory interface (16-bit bus) Memory MCU M9841 D15 to D0 DREQL DACKL IOW IOR DREQR DACKR D/C Data bus M9841 D15 to D0 DACKL IOW IOR D/C CH EMP MID FUL Data bus FEDL9841-04 MSM9841 7/9 ...
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... FEDL9841-04 Package material Epoxy resin Lead frame material 42 alloy Pin treatment Solder plating (≥5 mm) Package weight (g) 0.43 TYP. Rev. No./Last Revised 4/Nov. 28, 1996 MSM9841 (Unit : mm) 8/9 ...
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... No part of the contents contained herein may be reprinted or reproduced without our prior permission. 9. MS-DOS is a registered trademark of Microsoft Corporation. Copyright 2000 Oki Electric Industry Co., Ltd. Printed in Japan FEDL9841-04 MSM9841 9/9 ...