- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370715 > HT818D0(20DIP) Speech Synthesizer PDF資料下載
參數(shù)資料
| 型號： | HT818D0(20DIP) |
| 英文描述： | Speech Synthesizer |
| 中文描述： | 語音合成器 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 202K |
| 代理商： | HT818D0(20DIP) |
HT818D0
8
March 15, 2000
Key features
Key priority
When two or more keys are triggered simulta-
neously, the output voice is determined by the
key priority as shown below:
KEY1>KEY2>......KEY11>KEY12
Key debounce time
There are four kinds of key-in debounce time
that can be selected by mask option, namely
700 s, 22ms, 45ms and 180ms. The key
debounce time varies with the value of system
frequency.
Pull-high resistance
Four kinds of key input pin pull-high resis-
tance can be selected by mask option,
namely, 20k , 50k , 100k
The resistance may vary with VDD, tem-
peratures and the chip itself due to process
variations.
and 200k .
Trigger mode
All of the 12 keys can be optioned as one-shot
trigger mode, level hold mode or level-trigger
mode.
One shot
When one of the 12 keys (KEY1~KEY12) is
pressed momentarily or held down, the
group corresponding to that key will play
once.
Level trigger
When one of the 12 keys is pressed and held
down, the corresponding group will keep
playing. Once the pressed key is released,
the group will not stop till the included sec-
tions are all completed.
Level hold
When one of the 12 keys is pressed and held
down, the group corresponding to that held
key will play until the pressed key is re-
leased, then the group will immediately
stop regardless of the rest.
FLAG
When voices are playing, both FLAG1 and
FLAG2 pins are activated to output one of the
following signals through code option.
FLAG1 can be optioned as one of the following
signal outputs:
None, 3HzB flash, Busy, 6HzB flash, Voice indica-
tor, or End-pulse output
FLAG2, on the other hand, can be set as one of
the following signal outputs:
None, 3Hz flash, 6Hz flash, or Busy output
3Hz/3HzB flash
When voices are playing, the FLAG1 as well
as FLAG2 pin outputs a 3Hz signal to drive
an LED. The signal is active low, 25% duty.
Once the voice output is terminated, the
FLAG1 and FLAG2 pins become floating out-
puts. When the FLAG1 and the FLAG2 pins
are optioned as 3HzB and 3Hz outputs, they
will be alternately output at a 3Hz rate.
/ &
/ &
/ &
&
: & ) ( !
/ &
/ &
/ &
&
/ &
/ &
&
Powered by ICminer.com Electronic-Library Service CopyRight 2003
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT818D0(20SOP) | Speech Synthesizer |
| HT818D0(24DIP) | Speech Synthesizer |
| HT818D0(24SOP) | Speech Synthesizer |
| HT818D0 | 22.4-Second LOG-PCM Speech |
| HT819D0(16DIP) | Speech Synthesizer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT81-99628 | 制造商:BITECH 制造商全稱:Bi technologies 功能描述:HDSL, HDSL2 Coupling Transformers |
| HT8199628S | 制造商:BITECH 制造商全稱:Bi technologies 功能描述:HDSL, HDSL2 Coupling Transformers |
| HT81-99647 | 制造商:BITECH 制造商全稱:Bi technologies 功能描述:HDSL, HDSL2 Coupling Transformers |
| HT81-99648 | 制造商:BITECH 制造商全稱:Bi technologies 功能描述:HDSL, HDSL2 Coupling Transformers |
| HT81-99649 | 制造商:BITECH 制造商全稱:Bi technologies 功能描述:HDSL, HDSL2 Coupling Transformers |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。