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MSM9802/03/05-xxx
Voice Synthesis IC with Built-in Mask ROM
This version: Sep. 1999
MSM9802/03/05-xxx
Previous version: May. 1997
GENERAL DESCRIPTION
The MSM9802/03/05 is a PCM voice synthesis IC with built-in mask ROM.
This IC has two user selectable playback algorithms, OKI Non-linear PCM and straight PCM. It
also contains a current mode 10-bit D/A converter and a low-pass filter.
External control has been made easy by the built-in edit ROM that can form sentences by linking
phrases. By using Oki's Sound Analysis and Editing Tool, ROM data such as Phrase Control
Table can be easily set, created, edited, and evaluated.
With the stand-alone mode/microcontroller interface mode switching pin, the MSM9802/03/
05 can support various applications.
FEATURES
Device
MSM9802
MSM9803
MSM9805
ROM size*
512 Kbits
1 Mbit
2 Mbits
Speech period (sec)
f
SAM
=4.0 kHz
16.0
32.4
65.1
f
SAM
=6.4 kHz
10.0
20.2
40.7
f
SAM
=8.0 kHz
8.0
16.2
32.5
f
SAM
=16.0 kHz
4.0
8.1
16.2
*
Actual voice ROM area is smaller by 11 Kbits.
• ROM custom
• 8-bit OKI nonlinear PCM method/8-bit straight PCM method
• Built-in edit ROM
• Random playback function
• Sampling frequency
: 4.0 kHz/5.3 kHz/6.4 kHz/8.0 kHz/10.6 kHz/12.8 kHz/
16.0 kHz
Note: If RC oscillation is selected, 10.6 kHz, 12.8 kHz, and
16.0 kHz cannot be selected.
• Maximum number of phrases
: 63 (Microcontroller interface mode)
56 (Stand-alone mode)
• Built-in current mode 10-bit D/A converter
• Built-in low-pass filter
• Standby function
• RC oscillation (256 kHz)/ceramic oscillation (4.096 MHz) selectable
• Package options:
18-pin plastic DIP (DIP18-P-300-2.54) (Product name: MSM9802-xxxRS/MSM9803-xxxRS/
MSM9805-xxxRS)
24-pin plastic SOP (SOP24-P-430-1.27-K) (Product name: MSM9802-xxxGS-K/MSM9803-xxxGS-K/
MSM9805-xxxGS-K)
30-pin plastic SSOP (SSOP30-P-56-0.65-K) (Product name: MSM9802-xxxGS-AK/MSM9803-xxxGS-
AK/MSM9805-xxxGS-AK)
xxx indicates code number.
Chip
Note: This data sheet explains a stand-alone mode and a microcontroller interface mode,
separately.
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