W528SXX

ADPCM VOICE SYNTHESIZER

(PowerSpeech)

Publication Release Date: Nov 2000

- 1 -

Revision A1

GENERAL DESCRIPTION

The W528xxx family are programmable speech synthesis ICs that utilize the ADPCM coding method to

generate all types of voice effects.

The W528xxx's LOAD and JUMP commands and four programmable registers provide powerful user-

programmable functions that make this chip suitable for an extremely wide range of speech IC

applications.

The W528xxx family includes 12 kinds of bodies which are the same except for the voice duration

shown below:

BODY

W528S03

W528S05

W528S08A

W528S10

W528S12

W528S15

Second

3 Sec

5 Sec

8 Sec

10 Sec

12 Sec

15 Sec

BODY

W528S20

W528S25

W528S30

W528S40

W528S50

W528S60

Second

20 Sec

25 Sec

30 Sec

40 Sec

50 Sec

60 Sec

Note: The voice durations are estimated by 6.4KHz sampling rate.

FEATURES

µS) can be set

− LD (load), JP (jump) commands

− Four registers: R0, EN, STOP, and MODE

− Conditional instructions

− Speech equation

− END instruction

− Global repeat (GR) setting

− Output frequency and LED flash type setting