HT9170D HT9170D

HT9170D -- DTMF Receiver

General Description

The HT9170D is Dual Tone Multi Frequency (DTMF) receivers integrated with digital decoder and bandsplit filter functions as well as power-down mode and inhibit mode operations. HT9170D Such devices use digital counting techniques to detect and decode all the 16 DTMF tone pairs into a 4-bit code output. HT9170D Highly accurate switched capacitor filters are implemented to divide tone signals into low and high group signals. HT9170D A built-in dial tone rejection circuit is provided to eliminate the need for pre-filtering.

Features

• HT9170D    Operating voltage: 2.5V~5.5V
• HT9170D    Minimal external components
• HT9170D    No external filter is required
• HT9170D    Low standby current (on power down mode)
• HT9170D    Excellent performance
• HT9170D    Tristate data output for MCU interface
• HT9170D    3.58MHz crystal or ceramic resonator
• HT9170D    1633Hz can be inhibited by the INH pin
• HT9170D    HT9170D: 18-pin DIP package
  HT9170D: 18-pin SOP package
• Data Sheet
• Revision History
• 封装信息
  18-pin DIP 封装
  18-pin SOP 封装
• 问答集
• 应用范例
• Selection Guide
• 产品型号索引     

HT9170D_中文PDF(点击下载)