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參數(shù)資料
| 型號： | HT818D0 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | 22.4-Second LOG-PCM Speech |
| 中文描述： | 22.4第二次登錄的PCM語音 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 202K |
| 代理商： | HT818D0 |
HT818D0
22.4-Second LOG-PCM Speech
1
March 15, 2000
Features
Operating voltage: 3.6V~5.0V
Directly drives an external transistor
Low standby current (1 A 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 330 s at a
6kHz sampling rate)
22.4-second voice capacity (based on a 6kHz
sampling rate)
Section options
Retriggerable
Non-retriggerable
FLAG1 options
End-pulse output
3HzB flash
6HzB flash
Voice output indication
Busy output
FLAG2 options
3Hz flash
6Hz flash
Busy output
Controllable volume
12 keys
Key options
Stop key: KEY12
Random (only for KEY1)
Sequential (only for KEY1)
Repeat (for all KEYs)
Key debounce time (for all KEYs): 700 s,
22ms, 45ms, 180ms (based on a 6kHz
sampling rate)
One shot (for all KEYs)
Level-trigger
Pull-high resistance (for all KEYs)
Dice form or 20/24-pin DIP/SOP package
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 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.
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.
Applications
Leisure products
Alarm clocks
Public address system
Alert and warning system
Sound effect generators
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT819D0(16DIP) | Speech Synthesizer |
| HT819D0(16SOP) | Speech Synthesizer |
| HT819D0 | FC/ACP F.O. SINGLE MODE IN-LINE ATTENUATOR 5 DB |
| HT81R30(18DIP) | Speech Synthesizer |
| HT82-99627 | VDSL Coupling Transformers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT818D0(20DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Speech Synthesizer |
| HT818D0(20SOP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Speech Synthesizer |
| HT818D0(24DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Speech Synthesizer |
| HT818D0(24SOP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Speech Synthesizer |
| HT81-99628 | 制造商:BITECH 制造商全稱:Bi technologies 功能描述:HDSL, HDSL2 Coupling Transformers |
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