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參數(shù)資料
| 型號(hào)： | HT9200A |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | DTMF Generators |
| 中文描述： | 雙音多頻發(fā)電機(jī) |
| 文件頁(yè)數(shù)： | 5/8頁(yè) |
| 文件大?。?/td> | 282K |
| 代理商： | HT9200A |
Table 1: Digits vs. input data vs. tone output frequency (serial mode)
Digit
D4
D3
D2
D1
D0
Tone Output F requency (Hz)
1
2
3
4
5
6
7
8
9
0
#
A
B
C
D
—
—
—
—
—
—
—
—
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
1
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
1
1
1
1
1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
1
1
0
0
1
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
1
697
+
1209
697
+
1336
697
+
1477
770
+
1209
770
+
1336
770
+
1477
852
+
1209
852
+
1336
852
+
1477
941
+
1336
941
+
1209
941
+
1477
697
1633
770
+
1633
852
+
1633
941
+
1633
697
770
852
941
1209
1336
1477
1633
—
DTMF OFF
*Notes: The codes not listed in Table 1 are not used D4 is MSB
Functional Description
The HT9200A/B are DTMF generators for
μ
C
interfaces. They are controlled by a
μ
C in the
serial mode or the parallel mode (for the
HT9200B only).
Serial mode (HT9200A/B)
The HT9200A/B employ a data input, a 5-bit
code, and a synchronous clock to transmit a
DTMF signal. Every digit of a phone number to
be transmitted is selected by a series of inputs
which consist of 5-bit data. Of the 5 bits, the
D0(L SB) is the first received bit. T he
HT9200A/B will latch data on the falling edge of
the clock (CLK pin). The relationship between
the digital codes and the tone output frequency
is shown in Table 1. As for the control timing
diagram, refer to Figure 1.
HT9200A/B
5
21st Aug ’98
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT9200B | DTMF Generators |
| HT9202A | 1-Memory/2-Memory Tone/Pulse Dialer |
| HT9202B | 1-Memory/2-Memory Tone/Pulse Dialer |
| HT9202C | 1-Memory/2-Memory Tone/Pulse Dialer |
| HT9202D | 1-Memory/2-Memory Tone/Pulse Dialer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT9200A(8SOIC) | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Tone Telephone Dialer |
| HT9200A_04 | 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:DTMF Generators |
| HT9200A-8DIP | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Tone Telephone Dialer |
| HT9200A-8SOP | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Telecommunication IC |
| HT9200A-8SOPLF | 制造商:Holtek Semiconductor Inc 功能描述:IC DTMF GENERATOR SMD SOP8 制造商:HOLTEK 功能描述:IC, DTMF GENERATOR, SMD, SOP8 制造商:Holtek Semiconductor Inc 功能描述:IC, DTMF GENERATOR, SOP-8; IC Function:DTMF Generator; Brief Features:Low Standby Current, Low Total Harmonic Distortion, 3.58MHz Crystal or Ceramic Resonator; Supply Voltage Min:2.5V; Supply Voltage Max:5.5V; No. of Pins:8 ;RoHS Compliant: Yes |
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