SOP8 HOLTEK DTMF Receiver Circuit Board IC HT9170B/HT9170D

HOLTEK Original HT9170B/HT9170D DTMF Receiver Circuit Board Chip SOP8

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 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.

​ATFU Holtek inventory:

ATFU Electronics LTD is a professional distributor of imported original integrated circuit chip with 7 years experience.

ATFU mainly focus on LED Driver IC, MCU chip, Flash memory chip and programmerable chip IC at the very beginning.

With the development of ATFU, also based on the value to meet client's need, ATFU expand to Diode and capacitor too these years.

As Our Founder Mr Bin said, The most important thing in bussiness is turst, and how you convince people, firstly you should be honest.

In ATFU team, all people are honest to client, we try our best to give advices, we try our best to serve each client, we try our best to be client's best support. This is how ATFU growing, grown with fast speed. 

We sincerely hope could start our business with anyone who need components chip in this world, come and contact me now for any.