Datasheet > HT9170B_02

HT9170B_02

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		/
页数	文件大小	规格书
13页	187K
描述
DTMF Receiver

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中文翻译

获取价格

数据手册

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HT9170B_02 数据手册

HT9170B/HT9170D

DTMF Receiver

Features

Operating voltage: 2.5V~5.5V

Minimal external components

No external filter is required

Tristate data output for MCU interface

3.58MHz crystal or ceramic resonator

1633Hz can be inhibited by the INH pin

Low standby current (on power down mode)

Excellent performance

HT9170B: 18-pin DIP package

HT9170D: 18-pin SOP package

General Description

The HT9170B/D are Dual Tone Multi Frequency (DTMF)

receivers integrated with digital decoder and bandsplit

filter functions as well as power-down mode and inhibit

mode operations. Such devices use digital counting

techniques to detect and decode all the 16 DTMF tone

pairs into a 4-bit code output.

Highly accurate switched capacitor filters are imple-

mented to divide tone signals into low and high group

signals. A built-in dial tone rejection circuit is provided to

eliminate the need for pre-filtering.

Selection Table

Function

Operating

Voltage

OSC

Frequency

Tristate

Data Output

Power

Down

1633Hz

Inhibit

DVB

Package

Part No.

HT9170B

HT9170D

2.5V~5.5V

3.58MHz

18 DIP

18 SOP

Block Diagram

Rev. 1.10

September 24, 2002

12 3 4 5 6 7...13

中文翻译

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