DTMF MT8870 Audio Decoder Module

DTMF (Dual Tone Multi-Frequency) is a telecommunications signaling method that uses a combination of two sinusoidal frequencies to generate a dial tone.

The MT8870 module is a DTMF receiver that decodes the key pressed on a telephone keypad using a band-split filter. A band-split filter, as the name implies, splits the consolidated frequencies to identify them. The MT8870 module then converts the DTMF signal into 4-bit digital representing all 16 possible combinations on a standard telephone keypad.

Specifications:

Operating Voltage: 5V
Interface type: Digital
On-board MT8870 frequency decoder chip
On-board audio input interface
On-board LED lights for output state indication
PCB Size: 26.5 x 24.5 mm

Library: None

Packing List:

DTMF decoder module x1

Reviews

There are no reviews yet.

Be the first to review “DTMF MT8870 Voice Decoding Module”

Shipping Details

Please pay more attention to your order address which MUST MATCH your shipping address. (If you’re from Russia, Please leave your full name. It is very important)
Items will be shipped within 3 business days after payment.
Please check items when delivered, if damaged, please kindly accept it and contact us immediately. We will make a confirmation and resend you a new one.

Shipping By	Shipping Cost	Estimated Delivery Time	Tracking Information
Thembay Express	Free Shipping	12-20 days	Not available
LEX	$20.00 - $50.00	04-12 days	Available
Lorem Ex	$26.00 - $70.00	03-17 days	Available