Datasheet > W52920

W52920

更新时间： 2024-11-22 23:41:35

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
6页	95K
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W52920 数据手册

W529XX

ADPCM VOICE SYNTHESIZER

(PowerSpeech II)

GENERAL DESCRIPTION

The W529XX family comprises 4-bit ADPCM and 8-bit PCM voice synthesizers that provide basic

PowerSpeech instructions and a number of more powerful commands, which include basic ALU

operations, data move, branch, and random number generation.

The W529XX family includes the W52904, W52905, W52906, W52910, W52915, and W52920. The

playback duration time of each of these products is shown below:

BODY

W52902

W52904

W52905

W52906

W52910

W52915

W52920

DURATION

6 sec.

12 sec.

20 sec.

30 sec.

40 sec.

60 sec.

80 sec.

Note: All playback lengths are estimated for typical applications.

FEATURES

• Powerful programmable speech synthesizer

• Wide operating voltage range: 2.4 to 5.5 volts

• Both 4-bit ADPCM and 8-bit PCM synthesis methods can be used

• Provides 4 trigger pins with separate control of falling/rising edge

• Two trigger input debounce times (160 to 320 µS or 20 to 40 mS) can be set

• 8 multiplexed pins can be set as SCAN, FTEST, LED, STOP, or INPUT

• Supports ALU operations, including

− Branch decisions

− Logic operations

− Binary addition/subtraction

− Data move

− Bit operand

• Provides eight general purpose registers: R0 to R7

• Provides four special registers: EN, MODEn (n: 1, 2), OUTPUT, and ACC

• Maximum 32 matrix keys can be defined by H/W or S/W

• Provides random number generation by H/W

• Section control provided for each GO instruction

− Variable frequency: 4.8/6/8/12 KHz

− LED: ON/OFF

• Three LED flash types provided: 3 Hz, circular, and random

• System clock uses 1.5 MHz frequency

• Total of 256 label entries available for programming

Publication Release Date: April 1997

Revision A3

- 1 -

12 3 4 5 6

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