E2D0025-27-42
¡ Semiconductor
¡ Semiconductor
MSM6588/6588L
ADPCM Solid-State Recorder (for Serial Registers)
This version: Jan. 1998
MSM6588/6588L
Previous version: May. 1997
GENERAL DESCRIPTION
The MSM6588/6588L is a "solid-state recorder" IC developed using the ADPCM method. By
externally connecting a microphone, a speaker, a speaker amplifier and a serial register or other
Memory device to store ADPCM data, it can record and playback voice data similar to a tape
recorder.
The MSM6588/6588L has a stand-alone mode and a microcontroller interface mode. In stand-
alone mode, record/playback can be selected from a pin and it is possible to control the MSM6588
by a simple drive timing. In microcontroller interface mode, record/playback can be controlled
by commands from the microcontroller in microcontroller mode, the MSM6588/6588L is much
more flexible than in stand-alone operation. In addition, recording and playback with fixed
message are easily implemented by connecting a serial voice ROM.
The MSM6588 and the MSM6588L support 5 V and 3 V operation respectively.
FEATURES
• 12bit A/D converter
• 12bit D/A converter
• Microphone amplifier
• Low-pass filter (LPF)
Filter characteristics –40 dB/oct
• Serial registers
MSM6588
Up to four 1Mbit serial registers (MSM6685) can be driven directly
One 512Kbit serial register (MSM6587) can be driven directly
One 256Kbit serial register (MSM6586) can be driven directly
MSM6588L
Up to four 1Mbit serial registers (MSM63V89C) can be driven directly
• Serial Voice ROMs
1Mbit serial voice ROM (MSM6595A-xxx)
2Mbit serial voice ROM (MSM6596A-xxx)
3Mbit serial voice ROM (MSM6597A-xxx)
• Maximum recording time
262 seconds (when using 3-bit ADPCM, 5.3 kHz sampling)
• Voice triggered starting
• Pause function
• Master clock frequency: 4.096 MHz to 8.192 MHz
• Power supply voltage
MSM6588: Single 5 V Power supply
MSM6588L: Single 3 V Power supply
• Package options:
44-pin plastic QFP (QFP44-P-910-0.80-2K)(Product name: MSM6588GS-2K)
44-pin plastic QFP (QFP44-P-910-0.80-2K)(Product name: MSM6588LGS-2K)
44-pin plastic TQFP (TQFP44-P-1010-0.80-K)(Product name: MSM6588LTS-K)
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