MT9171ANR1

The MT9171ANR1 is a dual-tone multi-frequency (DTMF) receiver IC designed for receiving and decoding DTMF signals from telecommunication systems. It provides a compact and efficient solution for integrating DTMF decoding capabilities into various communication devices.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• VCC: Positive Power Supply
• VSS: Ground
• IN+: Non-inverting input pin
• IN-: Inverting input pin
• STBY: Standby mode control
• Q1-Q4: Data output pins
• GS: Gain select
• PD: Power-down control
• E: Output enable
• EXTAL/RT: External clock input/roller tone input
• EXTOUT: External clock output
• NC: No Connection

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the MT9171ANR1 IC for a visual representation.

Key Features

• Dual-Tone Multi-Frequency Receiver: Capable of receiving and decoding DTMF signals for various telecommunication applications.
• Wide Operating Voltage Range: Operates from a single +2.7V to +5.5V supply, making it compatible with different voltage systems.
• Data Output: Provides four data output pins for accessing the decoded DTMF signals.
• Standby and Power-Down Modes: Includes standby and power-down control features for power-saving applications.
• External Clock Input: Ability to receive external clock input for precise timing control.
• Compact Package: Available in a space-saving 16-pin SOIC package.

Note: For detailed technical specifications, please refer to the MT9171ANR1 datasheet.

Application

• Telecommunication Systems: Ideal for integrating DTMF signal receiving and decoding in telecommunication devices such as phones, PBX systems, and voice response systems.
• Remote Control: Suitable for remote control applications that utilize DTMF signals for command input.
• Automated Systems: Used in automated systems and interactive voice response (IVR) applications to decode DTMF signals from users.

Functionality

The MT9171ANR1 is a dual-tone multi-frequency (DTMF) receiver IC capable of receiving and decoding DTMF signals from telecommunication systems. It offers a reliable and compact solution for DTMF signal integration and processing.

Usage Guide

• Power Supply: Connect VCC (Pin 1) to the supply voltage (2.7V to 5.5V).
• Data Output: Access the decoded DTMF signals from the Q1-Q4 pins.
• Control Modes: Utilize the STBY, PD, and E pins for standby, power-down, and output enable control, respectively.

Frequently Asked Questions

Q: Can the MT9171ANR1 decode DTMF signals from any telecommunication system?
A: The MT9171ANR1 is designed to decode standard DTMF signals and is compatible with most telecommunication systems utilizing DTMF tones.

Q: What is the maximum supply voltage for the MT9171ANR1?
A: The MT9171ANR1 can operate with a maximum supply voltage of 5.5V.