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參數資料
| 型號： | HT9172 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | DTMF Receiver |
| 中文描述： | 雙音多頻接收器 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 124K |
| 代理商： | HT9172 |
HT9172
DTMF Receiver
Block Diagram
Rev. 1.00
1
March 30, 2006
Features
Operating voltage: 2.5V~5.5V
Minimal external component requirements
No external filter required
Low standby current in power down mode)
Excellent performance
Tristate data output for MCU interface
3.58MHz crystal or ceramic resonator oscillator
1633Hz can be inhibited by the INH pin
18-pin DIP/SOP packaging
General Description
The HT9172 is a Dual Tone Multi Frequency (DTMF) re-
ceiver device which includes an integrated digital de-
coder and band split filter functions as well as
power-down and inhibit mode operations. The device
uses digital counting techniques to detect and decode
the full range of 16 DTMF tone pairs into a 4-bit code
output. Highly accurate switched capacitor filters are uti-
lised to divide the DTMF dual tone frequencies into low
and high group signals. An integrated dial tone rejection
circuit is provided to eliminate the need for pre-filtering.
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Technical Document
Tools Information
FAQs
Application Note
相關PDF資料 |
PDF描述 |
|---|---|
| HT9200 | DTMF Generators |
| HT9200A | DTMF Generators |
| HT9200B | DTMF Generators |
| HT9202A | 1-Memory/2-Memory Tone/Pulse Dialer |
| HT9202B | 1-Memory/2-Memory Tone/Pulse Dialer |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HT9200 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:DTMF Generators |
| HT92000526-5 | 制造商:Rennsteig 功能描述:PACK CON III FEM |
| HT9200A | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:DTMF Generators |
| HT9200A(8SOIC) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone Telephone Dialer |
| HT9200A_04 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:DTMF Generators |
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