MT8870 DTMF Decoder Module

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₹120.00

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Overview
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MT8870 DTMF Decoder Module is a very tiny module that is based on MT8870 DTMF decoder ic. The module offers a 3.5mm audio connector to connect an audio source. The DTMF Signal in the audio source is decoded and the digital outputs on the module, indicate the key pressed. You may connect a phone to the module and the module will output the key(0-9, *, #, A, B, C, or D)pressed on the audio source. This module is suitable for modem interfaces, mobile radios, and other DTMF-related applications. Can be used to build mobile-controlled robots, home automation projects, IVR-style applications, etc This component is ideally suited to adding dual-tone multi-frequency (DTMF) decoding to your project. This detection module interprets the incoming tone and produces a coded output that can be connected to all manner of microcontrollers.DTMF is commonly found in touch-tone devices such as a phone. The tone is a combination of two separate sine waves that produce a unique signal that can be transmitted or heard. When the module receives the signal it can decode it and produce a binary output that can be used in other devices. The module shows the state of the signal through onboard LEDs.

Features:-

Working voltage: 5V
Power Consumption: 500MW(MAX)r: 500 MW (MAX)
On-board voice input interface
On-board LED, it is very convenient to check the output state.
Onboard 5 x LED indicators for easy viewing output state
Operating Temperature : -40-+85 °C
IO Drive: Current Maximum 10mA.
PCB Size: 25.4x25.4MM
This decoding module is for mobile and fixed telephone voice dialing decoding function
Designed specifically for the ARDUINO Board. Can also be used for other MCUs(AVR PIC MSP430 STM32 ARM7/9/10/11 FPGA/CPLD)
Low power consumption
Internal gain setting amplifier
Adjustable guard time
Central office quality
Onboard 3.5mm input interface
5 Channel interface
On-board MT8870 frequency decoder chip
Power-down mode