Name: DTMF MT8870 Voice Decoding Module
SKU: 8987
Price: 1500.00 KES
Availability: InStock

DTMF MT8870 Voice Decoding Module

KSh 1,500.00

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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

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