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參數(shù)資料
| 型號： | HT817D0(20SOP) |
| 英文描述： | Speech Synthesizer |
| 中文描述： | 語音合成器 |
| 文件頁數(shù)： | 5/15頁 |
| 文件大小： | 207K |
| 代理商： | HT817D0(20SOP) |
Electrical Characteristics
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
V
DD
Operating Voltage
3.6
5.0
V
I
DD
Operating Current
3V
No load
200
400
A
I
STB
Standby Current
3V
1
3
A
I
O
Max. AUD Output Current
3V
V
OH
=0.6V
1.5
2
mA
I
OL
FLAG Sink Current
3V
V
OL
=0.3V
1.5
3.0
mA
V
IH
H Input Voltage
0.8V
DD
V
DD
V
V
IL
L Input Voltage
0
0.2V
DD
V
f
OSC
Oscillating Frequency
3V
R
OSC
=530k
76
96
116
kHz
HT817D0
5
March 15, 2000
Functional Description
The HT817D0 is a mask ROM type voice synthe-
sizer with 16.8-second voice capacity. A group of
pre-recorded voice sections is played upon receipt
of key trigger input signals. Two FLAG signals
are output while playing voices.
The 16.8-second voice capacity can be divided
into sections of arbitrary length. Notice that the
silence length and end-pulse width are not in-
cluded in the memory.
By using Holtek s programming tools, the con-
tents and arrangement of sections, as well as
key features and FLAG output are all program-
mable before device fabrication.
The IC provides 12 key inputs (KEY1~KEY12).
Of the 12 keys, KEY1 can be optioned as a di-
rect, sequential or random trigger key. KEY12
can be selected as a stop or direct key. As for the
remaining 10 keys (KEY2~KEY11), they are
used as direct keys exclusively.
Play function block diagram
System oscillator
The HT817D0 has a built-in RC oscillator
which requires only one external resistor for
normal applications. The oscillator frequency
is typically 96kHz for an external resistor of
530k . The required oscillator frequency may
vary with different sampling rates in the pro-
cess of voice programming. As a result, the
value of the oscillator resistor may be differ-
ent for different items.
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相關PDF資料 |
PDF描述 |
|---|---|
| HT817D0(24DIP) | Speech Synthesizer |
| HT817D0(24SOP) | Speech Synthesizer |
| HT817D0 | 16.8-Second LOG-PCM Speech |
| HT818D0(20DIP) | Speech Synthesizer |
| HT818D0(20SOP) | Speech Synthesizer |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HT818D0 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:22.4-Second LOG-PCM Speech |
| 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 |
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