GENERAL DESCRIPTION

MSM9831 is a PCM-based Voice Synthesis LSI (Playback only) with on-chip 384Kbit Mask ROM, D/A Converter and Low-Pass Filter.

Serial input interface for an external MCU makes MSM9831 a better choice for size-critical applications with less wiring pin-count in small foot-print packaging.

FEATURES

• 8-bit OKI Non-Linear PCM Algorithm

• Sampling Frequency (Selectable on each phrase)

4.0/5.3/6.4/8.0/10.6/12.8/16.0 kHz

• On-chip Mask ROM Capacity : 384 Kbits

• Maximum Playback Time Length

12.0 sec. at fsam = 4.0 kHz

6.0 sec. at fsam = 8.0 kHz

3.0 sec. at fsam = 16.0 kHz

• Clock Oscillation

3.5 to 4.5 MHz (Ceramic Oscillation)

3.5 to 17 MHz (External Clock)

• User definable Phrase Control Table function

• Maximum number of Phrases : 31 phrases

• 10-bit current-output-type D/A Converter

• A built-in LPF

• Power Supply Voltage : +2.0 to +5.5 V (External Clock)

+2.5 to +5.5V (Ceramic Oscillation)

• Package:

8-Pin SOP Package (SOP8-P-250-1.27-K) (Product name: MSM9831-xxx MA)