MSM6588L

E2D0025-39-23 ¡ Semiconductor ¡ Semiconductor MSM6588/6588L ADPCM Solid-State Recorder (for Serial Registers) This version: Feb. 1999 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 like a tape recorder. The MSM6588/6588L has a stand-alone mode and a microcontroller interface mode. In standalone mode, record or playback can be selected via a pin and it is possible to control the MSM6588 at a simple drive timing. In microcontroller interface mode, record/playback can be controlled by commands from the microcontroller, the MSM6588/6588L is much more flexible in microcontroller mode than in stand-alone mode. 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 (MSM6389C) 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 directl...