Where is the volume control for this module?

Please contact us for more information.

" ....Digital Amplifier Board" - means input signal to be digital, not analog?

No, "Digital Amplifier Board" refers to the internal digital signal processing; the input signal can still be analog for this amplifier board.

Do you have any connection diagram? I see 3pin audio input point and 3 sets of 2pin output sockets on other side of the board, if this board is 2 channel output, then what is the 3rd connection is for?

It has the following connections: 1) 3-pin Audio Input: This is for stereo audio input with Left (L), Right (R), and Ground (GND) connections. 2) 3 Sets of 2-pin Output Sockets: 2 Sets are for the Left and Right speaker outputs (L+, L- and R+, R-) and 1 Set is often a power supply connection for the board (VCC+ and GND). The third 2-pin connection is for the power input, not a third audio channel.

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TDA7492 50*2 100W HighPower Digital Amplifier Board

Name: TDA7492 50*2 100W HighPower Digital Amplifier Board
Brand: Elecvora
SKU: 815877
Price: 1494 INR
Availability: InStock

26+ bought in past month

AI Summary

Audio Amplifier Module for everyday users

The TDA7492 50*2 100W HighPower Digital Amplifier Board is a value-for-money audio amplifier module designed for everyday users. It features Output Power (W): 50 and Operating Voltage (VDC): 10 to 26.

₹1,494

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Total: ₹1,494

Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.

Estimated delivery: 25 Aug – 8 Sept

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Quick Specs

Output Power (W): 50

Operating Voltage (VDC): 10 to 26

No. of Channels: 2

Model No. / Name: TDA7492

Working Mode: Class D (PWM modulation type)

Length (mm): 72

Ideal For

Electronics projectsArduino / Raspberry Pi buildsPrototyping

SKU: robu-815877Category: Audio Amplifier Module

About This Product

The TDA7492 50*2 100W HighPower Digital Amplifier Board is a value-for-money audio amplifier module designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

Output Power (W): 50
Operating Voltage (VDC): 10 to 26 — works with standard household power
No. of Channels: 2
Model No. / Name: TDA7492
Working Mode: Class D (PWM modulation type)
Length (mm): 72
Width (mm): 58
Weight (g): 58

Why Buy from Elecvora?

Elecvora sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

This low-cost FX-Audio amplifier module is based on a TDA7492 amplifier chip allowing it to deliver a power of 2x50W under 8Ω, and this has high efficiency due to its Class D architecture. The module can also be used in BTL (bridge) mode for the power of 1x100W under 4Ω. The amplifier chip is combined with a heat sink to ensure proper heat dissipation. On the connector site, there is a PH 2.0mm 3 pins connector at the input and screw terminals at the output for the left and right channels.

Note:

*When the speaker impedance is 4 ohms, the operating voltage must be less than 18V. *When the speaker impedance is 6 ohms, the operating voltage can not exceed 24V. *When the speaker impedance is 8 ohms, the working voltage can not exceed 26V. The power not to reverse the polarity.

Features:

Class D amplifier produces 2 x 50 watt @ 8 ohms
Can be wired R+ to L+ for mono mode
8" stereo wiring harness included
Short-circuit and over-temperature protection
Supply Voltage 10-26 V DC

Package Includes:

1 x TDA7492 50*2 100W HighPower Digital Amplifier Board

1 x 8" Stereo Wiring Cable

Setup Guide

Identify the pins

Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.

Wire to your microcontroller

Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.

Install libraries

In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.

Upload example sketch

Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.

Calibrate if needed

Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.

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