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參數(shù)資料
| 型號： | HT9020B |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | Call Progress Tone Detector |
| 中文描述： | 呼叫進展音探測器 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大小： | 120K |
| 代理商： | HT9020B |
HT9020B
Call Progress Tone Detector
Block Diagram
Pin Assignment
Rev. 1.20
1
March 31, 2003
Features
Operating voltage: 2.5V~5.5V
Low power consumption
Low cost 32768Hz crystal
CPT Band: 305~640Hz detection
Good performance:
8 ~ 39 dBm at V
DD
=2.5V
0 ~ 27 dBm at V
DD
=5V
8-pin DIP package
General Description
The HT9020B call progress tone detector is a telecom
peripheral for Auto-dialing system use.
Switched capacitors technology is implemented into the
chip to get good performance characteristics of band
pass filter in the range of 305 to 640Hz call progress
tone which is dual tone multi-frequency signal.
When it detected CPT signal then it generates relative
envelopes for external microcontroller decision to finish
different kinds of CPT signal detection such as dial tone,
busy tone, ring-back tone and reorder tone.
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相關PDF資料 |
PDF描述 |
|---|---|
| HT9020 | Call Progress Tone Decoder & ABR Controller |
| HT9020A | Call Progress Tone Decoder & ABR Controller |
| HT9032 | Calling Line Identification Receiver |
| HT9033 | CAS Tone Detector |
| HT9170 | DTMF Receiver |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HT9030 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Calling line identification receiver |
| HT9031(18DIP-A) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Caller Number ID Circuit |
| HT9031(18DIP-B) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Caller Number ID Circuit |
| HT9031(20DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Caller Number ID Circuit |
| HT9031(24DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Caller Number ID Circuit |
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