Holtek HT9170B / HT9170D DTMF Receiver

£0.60

Product Overview

Holtek HT9170B / HT9170D DTMF Receiver

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 implemented 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.

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 MCU 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

Parts

HT9170D-18SLF

Dual Tone Multi Frequency DTMF 18SOP, Tubes, RoHS, PB Free 2.5V-5.5V operating voltage
*** CONTACT US FOR VOLUME PRICING ***

£0.60(Ex. VAT)

8500 In stock

HT9170B-18DLF

Dual Tone Multi Frequency DTMF 18-pin DIP package, PB Free 2.5V-5.5V operating voltage
*** CONTACT US FOR VOLUME PRICING ***

£0.60(Ex. VAT)

Enquire for availability

Ask our experts

Feel free to speak to us about any of our services or what else we may be able to provide your business.

You can call us on a href="tel:01527830800">01527 830800 or message us below.

[contact-form-7 404 "Not Found"]

Secure Payments

payment-methods