The MT8870 module is a low power device DTMF decoder chip. It is a complete DTMF receiver integrating both the band-split filter and digital decoding functions. This module is suitable for modem interfaces, mobile radios and other DTMF related applications.
Voice Decoding MT8870 DTMF Module
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
Out of stock
the use of solid state relays, output with a resistive fuse 240V 2A. Size: 55 * 33 * 25 (L * W * H) input power: 5V DC (160MA) the input control signal voltage: (0-1.5V state low level relay ON) (2.5-5V state high level relay OFF) blue KF301 terminal access control line more convenient
Specifications: Supply voltage: DC 3.8-7.0V Operating Current: <65mA Peak current: <95mA Fingerprint image time: <1.0 seconds Window area: 14.5*19.4 mm Signature File: 256 bytes Template files: 512 bytes Storage capacity: 1000 False Accept Rate (FAR): <0.001% (security level 3) False Reject Rate (FRR): <1.0% (security level 3) Search time: <1.0 seconds (1: 500 average) PC interface: UART (TTL logic level)
Module stereo output, built-in Bluetooth antenna structure is simple, the power supply voltage is 3.7V~5V version selection, active speakers increase Bluetooth connection function. 7PIN output interface is spacing 2.54 through hole, 7PIN output interface is: + power, ground, left channel, right channel, mute, LED status indicator, reserved port.