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E2D0097-19-94

隆 Semiconductor

MSM9831-xxx

隆 Semiconductor

VOICE SYNTHESIS LSI with on-chip 384Kbit MASK ROM

This version: Sep. 1999

MSM9831-xxx

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

鈥?8-bit OKI Non-Linear PCM Algorithm

鈥?Sampling Frequency (Selectable on each phrase)

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

鈥?On-chip Mask ROM Capacity

: 384 Kbits

鈥?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

鈥?Clock Oscillation

3.5 to 4.5 MHz (Ceramic Oscillation)

3.5 to 17 MHz (External Clock)

鈥?User definable Phrase Control Table function

鈥?Maximum number of Phrases

: 31 phrases

鈥?10-bit current-output-type D/A Converter

鈥?A built-in LPF

鈥?Power Supply Voltage

: +2.0 to +5.5 V (External Clock)

+2.5 to +5.5V (Ceramic Oscillation)

鈥?Package:

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

COMPARISON TABLE WITH MSM9802

MSM9831

Mask ROM Capacity

Interface

Oscillation

Max. Phrase Number

Status Signal Output

D/A Converter Current Flowing

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

1/22

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