MSM9888L Overview
The MSM 9888L is a recording and playback IC that is controlled by the micro-controller in serial mode, presses voice with the Oki ADPCM system with high tone quality, and directly stores voice data inthe serial voice flash momory. This IC can operate in a range of 2.7 to 3.6 V and contains a mask ROM. Since the package is small and backup is not needed, this recording and playback IC is suitable for the voice...
MSM9888L Key Features
- Voice analyzing and synthesizing system : 4-bit OKI ADPCM system-8-bit OKI non-linear PCM system (for ROM playback only)
- Built-in 12-bit A/D-D/A converter
- Built-in LPF : Attenuation rate -40 dB/oct
- Sampling frequency (for 4.096 MHz of source oscillation frequency) : 2.0 kHz, 2.7 kHz, 3.2kHz, 4.0 kHz, 5.3 kHz, 6.4 kHz
- External memory for variable message : 1Mb, 2Mb, 4Mb, 8Mb, serial voice flash memory
- Recording time (When the 1Mb serial voice flash is used) : Approximately 32 seconds (Fsam=8.0 kHz) : Approximately 40 se
- Built-in 512Kb mask ROM for fixed message
- Playback time for fixed message : Approximately 15 seconds (Fsam=8.0 kHz) : Approximately 20 seconds (Fsam=6.4 kHz) : Ap
- Number of pharase Variable message : 63 phrases Fixed message : 255 phrases
- Any data can be written to and read from a part in the voice flash memory