Product Name: DTMF Generator Voice Encoder Dual Tones Transmitter Board Keyboard control Module for MT8870 CE004 CE005 CE023 AD22B04 AD22A08
Packing list:
1 PCS DTMF Generators Module;
1 PCS 50cm Male to Male audio cable ( 3.5mm jack );
Description:
Operating Voltage : 5-24VDC
Working current : 6-8MA
Power interface : 2.1mm x 5.5mm Female Male DC Power socket
Audio interface : 2x 3.5mm audio jack socket
MCU input interface : 7x 2.54MM pin header,GND 5V D3 D2 D1 D0 STD
Size : 63*40*13mm
Weight : 16g
The AE11A04 DTMF tone generators are designed
for Dialing keyboard AND MCU interfaces. They can be instructed by a
MCU(OR Dialing keyboard ) to generate 16 dual tones from the Audio 1/2 . 16 dual tones is ''1234567890#*ABCD''
For more information
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