Please according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.
DC Power Supply Voltage:4.5V-5.5V
Operating Temperature:-40- 85 C
IO Drive:Sink Current (Low level drive) 20mA,source current(High level drive) 270uA
16 Channel selectable high and low level output.
8 kinds of Mode selection
PCB Size:50 x 20 mm
This decoding module is for fixed telephone voice dialing decoding function , has 16 channels, 8 kinds of selectable output function, and leads to STD signal to use as a microcontroller interrupt signal, very convenient to embed all kinds for fixed telephoneremote remote control, remote control decoding key value. 12 channels outputs decode fixed telephone keys (0-9, * ).Another 4 channels output(ABCD) can use ‘DTMF Dial’ Software control.
5 x 16 Channel DTMF Decoder Module
5 x Male to Male Audio Cable (3.5mm jack )
5pcs 16 Channel DTMF MT8870 Audio Decoder Board Phone Voice Decoding Controller for Smart Home Automation
Shipping:Standard Shipping about 10-25 business days