Datasheet > HT818D0(20SOP)

HT818D0(20SOP)

更新时间： 2024-11-07 23:56:47

品牌	Logo	应用领域
其他 - ETC		语音合成
页数	文件大小	规格书
14页	200K
描述
Speech Synthesizer

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中文翻译

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数据手册

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HT818D0(20SOP) 数据手册

HT818D0

22.4-Second LOG-PCM Speech

Features

Operating voltage: 3.6V~5.0V

FLAG2 options

Directly drives an external transistor

Low standby current (1mA typ. for V_DD=3V)

Minimal external components

508 words table ROM for key functions

Programmable silence length and end-pulse

width (minimal end-pulse width is 330ms at a

6kHz sampling rate)

3Hz flash

6Hz flash

Busy output

Controllable volume

12 keys

Key options

Stop key: KEY12

Random (only for KEY1)

22.4-second voice capacity (based on a 6kHz

sampling rate)

Section options

Sequential (only for KEY1)

Repeat (for all KEYs)

Key debounce time (for all KEYs): 700ms,

Retriggerable

Non-retriggerable

22ms, 45ms, 180ms (based on a 6kHz

sampling rate)

One shot (for all KEYs)

FLAG1 options

End-pulse output

3HzB flash

Level-trigger

Pull-high resistance (for all KEYs)

Dice form or 20/24-pin DIP/SOP package

6HzB flash

Voice output indication

Busy output

Applications

Leisure products

Alarm clocks

Public address system

Alert and warning system

Sound effect generators

General Description

The HT818D0 is a single chip LOG-PCM voice

synthesizer LSI with 22.4-second voice capacity

at a 6kHz sampling rate. The chip when trig-

gered drives a speaker through an external

transistor with a current switch D/A converter

output. Negligible current will be consumed in

the standby state.

The customer¢s voice sources are recorded sec-

tion by section into an internal mask ROM. The

sectional playback arrangement instructions of

each key are stored in the table ROM. The key

features are also programmable. With such a

flexible structure, the HT818D0 is excellent for

versatile voice applications.

The HT818D0 provides 12 key inputs and 2 pro-

grammable FLAG outputs. With a 3.6V~5.0V

power supply, a complete synthesized voice

playback system can be easily built with very

few external components.

March 15, 2000

12 3 4 5 6 7...14

中文翻译

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