Audio Amplifier Board kit

12V Best Mini Audio amplifier board for two-way audio voice communication wireless video audio link

Function:

The main function of the audio power amplifier board is to amplify the output and input voice signals with the wireless IP ethernet transmission and volume adjustment function

This is an Audio power amplifier board. Our wireless video and audio data link TX900, has an Audio interface, which can realize two-way voice intercom, but its voice is very small and needs to be amplified by a voice power amplifier board. , the received voice is amplified through the amplifying board to enhance the sound, which can be passed to the microphone and speaker of the intercom headset.

Board size: 45*30mm

Fixing hole: 3.2mm

Interface Description

power interface	Pin1	Pin2
Molex436500200	VCC	GND

Connection Instructions: Connect to Power

VCC: Positive terminal of power interface, input: 6.5-18V

GND: Negative terminal of power interface

voice input interface	Pin1	Pin2	Pin3	Pin4
Molex0022057045	MIC	GND	GND	Audio_out

Connection instructions: Connect to Wireless IP Ethernet Video Audio Data Transmission’s Audio Interface

MIC: microphone input

GND: power ground

Audio_out: Voice output interface

Volume adjustment interface	Pin1	Pin2	Pin3	Pin4	Pin5
Molex0022057055	RL	V0	RH	SW1	SW2

Connection Instructions: Connect to Volume Adjustment Knob Switch

RL: Knob resistor fixed end

V0: Knob resistor tap end; internally connected to RH.

RH: The other end of the knob resistor is fixed; it is internally connected to V0.

SW1: one end of the knob switch

SW2: The other end of the rotary switch

voice output	Pin1	Pin2	Pin3	Pin4	Pin5	Pin6
Molex0022057065	PPT-	PTT+	MIC	GND	SPK-	SPK+

Connection instructions: Connect to the hand microphone

PTT-: Negative terminal of a button, internally connected to ground.

PTT+: Button positive end

MIC: voice microphone input

GND: power ground

SPK-: speaker positive end

SPK+: speaker negative terminal

This 12V Best mini audio amplifier board can provide an efficient and noise-free technical guarantee for your two-way voice communication.