MSM9831 Datasheet, PDF (1/23 Pages) OKI electronic componets – VOICE SYNTHESIS LSI with on-chip 384Kbit MASK ROM

E2D0097-19-94
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MSM9831-xxx
VOICE SYNTHESIS LSI with on-chip 384Kbit MASK ROM
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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)
COMPARISON TABLE WITH MSM9802
Mask ROM Capacity
Interface
Oscillation
Max. Phrase Number
Status Signal Output
D/A Converter Current Flowing
MSM9831
384K Bit
MCU (Serial)
Ceramic/External Clock
31
None
Forced into the circuit
MSM9802
512K Bit
MCU (Parallel)/Stand-alone
Ceramic/CR
63
NAR/BUSY
Forced out of the circuit
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