HT9170 datasheet(1/12 Pages) HOLTEK

부품명	HT9170

상세설명	DTMF Receiver

PDF	12 Pages

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제조업체	HOLTEK [Holtek Semiconductor Inc]

홈페이지	http://www.holtek.com

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HT9170

DTMF Receiver

Selection Table

Function Operating

Voltage

OSC

Frequency

Tristate

Data Output

Power

Down

1633Hz

Inhibit DV DVB Package

Part No.

HT9170B 2.5V~5.5V

3.58MHz

ÖÖ

Ö

¾

18 DIP

HT9170D 2.5V~5.5V

3.58MHz

ÖÖ

Ö

¾

18 SOP

1

December 20, 1999

Features

·

Operating voltage: 2.5V~5.5V

·

Minimal external components

·

No external filter is required

·

Low standby current (on power down mode)

·

Excellent performance

·

Tristate data output for mC interface

·

3.58MHz crystal or ceramic resonator

·

1633Hz can be inhibited by the INH pin

·

HT9170B: 18-pin DIP package

HT9170D: 18-pin SOP package

General Description

The HT9170 series are Dual Tone Multi Fre-

quency (DTMF) receivers integrated with digi-

tal decoder and bandsplit filter functions. The

HT9170B and HT9170D types supply

power-down mode and inhibit mode operations.

All types of the HT9170 series use digital count-

ing techniques to detect and decode all the 16

DTMF tone pairs into a 4-bit code output.

Highly accurate switched capacitor filters are

employed to divide tone (DTMF) signals into

low and high group signals. A built-in dial tone

rejection circuit is provided to eliminate the

need for pre-filtering.

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HT9170 데이터시트(PDF) 1 Page - Holtek Semiconductor Inc

HT9170 데이터시트(HTML) 1 Page - Holtek Semiconductor Inc

유사한 부품 번호 - HT9170

유사한 설명 - HT9170

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