Specifications
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
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.
1. 5V 2-Channel Relay interface board, and each one needs 15-20mA Driver Current, optocoupler isolation.
2. Equiped with high-current relay, AC250V 10A ; DC30V 10A
3. Standard interface that can be controlled directly by microcontroller
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
Range of Receiving Frequency - 1575.42MHz
Band Width(MHz) - 10MHZ
Gain (Zenith)(dBi typ) - 0dB
Gain(10°elevation) -5dB
Polarization - Right-Handed Circular
Impedance(O) - 50%O
WIDE SUPPLY RANGE: 2.0V to 5.5V
LOW CURRENT CONSUMPTION: Continuous Mode: Only 150A Single-Shot Mode: Auto Shut-Down
PROGRAMMABLE DATA RATE: 8SPS to 860SPS
1 single module can drive the an 8 * 8 dot matrix common cathode
2 the module Operating voltage: 5 v
The Module 3 dimensions: length 3.2 cm X 3.2 cm wide X 1.3 cm high
4 holes with four screws, the diameter of 3 mm
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.
