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HT9170B Datasheet Dtmf Receiver

Manufacturer: Holtek Semiconductor Inc

Overview: .. HT9170B/HT9170D DTMF Receiver.

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 implemented to divide tone signals into low and high group signals.

Key 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 General.

More Datasheets from Holtek Semiconductor Inc

Part Number Description
HT9170 DTMF Receiver
HT9170D DTMF Receiver
HT9011 FM IF Detector
HT9015 RF Single Chip for Cordless Phone
HT9032 Calling Line Identification Receiver
HT9200 DTMF Generators
HT9200A DTMF Generators
HT9200B DTMF Generators
HT9202A 1-Memory/2-Memory Tone/Pulse Dialer
HT9202B 1-Memory/2-Memory Tone/Pulse Dialer

HT9170B Distributor