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HT9172(18DIP-A) PDF预览

HT9172(18DIP-A)

更新时间: 2024-01-23 14:21:01
品牌 Logo 应用领域
台湾合泰/盛群 - HOLTEK LTE电信光电二极管电信集成电路
页数 文件大小 规格书
14页 128K
描述
DTMF Signaling Circuit, PDIP18,

HT9172(18DIP-A) 技术参数

是否Rohs认证:符合生命周期:Contact Manufacturer
Reach Compliance Code:unknown风险等级:5.77
Is Samacsys:NJESD-30 代码:R-PDIP-T18
端子数量:18最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP18,.3
封装形状:RECTANGULAR封装形式:IN-LINE
电源:3/5 V认证状态:Not Qualified
子类别:Telecom Signaling Circuits最大压摆率:7 mA
表面贴装:NO电信集成电路类型:DTMF SIGNALING CIRCUIT
温度等级:INDUSTRIAL端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
Base Number Matches:1

HT9172(18DIP-A) 数据手册

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HT9172  
DTMF Receiver  
Technical Document  
·
Tools Information  
·
FAQs  
·
Application Note  
Features  
·
·
·
·
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Operating voltage: 2.5V~5.5V  
Tristate data output for MCU interface  
·
Minimal external component requirements  
3.58MHz crystal or ceramic resonator oscillator  
1633Hz can be inhibited by the INH pin  
18-pin DIP/SOP packaging  
·
No external filter required  
·
Low standby current in power down mode)  
·
Excellent performance  
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.  
Block Diagram  
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Rev. 1.01  
1
February 23, 2009  

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