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 Okis 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

? 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

? 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-xxxGSAK/MSM9805-xxxGS-AK)

xxx indicates code number.