TDA7492P 50W Wireless Digital Audio Receiver Amplifier Board
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020

TDA7492P 50W Wireless Digital Audio Receiver Amplifier Board

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  • Product SKU: KG637
₹ 1,311.45 ₹ 2,098.95
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This is a TDA7492p based is Class-D audio amplifier. This module has integrated a Bluetooth module, all the used components in the amplifying process, output connectors and control buttons. All you need to do is supply 12V to 36A to it, connect an 8-ohm 50W speaker to each output and connect a Bluetooth device to it and enjoy and control your favorite music wirelessly.

In the layout above you can see that the board has 5 control buttons. You can also use those to change the track or control the volume. There is a DIP 2 switches button. Combining the up/down position of each switch you can obtain 4 different filters for the output. In the layout above you can see each combination and the applied gain in each case.

This Amplifier has Audio stereo input and connectivity to all versions of the Bluetooth connection, using CSR8635 Bluetooth chip with Bluetooth V4.0. Output Impedance of module is 8 ohms per channel. TDA7492 digital amplifier chip, designed to optimize the circuit layout, the sound quality is very good, big power DIP switches can be adjusted directly after the amp gain more respect and better promote greater damping horn.

Technical Details

  • Operating Voltage : 8 ~ 24VDC
  • Speaker Output Power : 25W+25W at THD 10% 8Ω @ 20Vdc.
  • Bluetooth : CSR8635 Audio Bluetooth V4.0.
  • Input Power Jack : 5 mm DC jack
  • Compatible Speaker Impedance : 8Ω.
  • Headphone Output : 32Ω. Stereo 3.5mm Jack
  • Fixed gain settings : 21.6dB, 27.6dB, 31.1dB and 33.6dB.


  • 25 W + 25 W continuous output power at THD = 10% with VCC= 20 V and RL= 8 Ω
  • Wide-range single-supply operation (8 – 26 V)
  • High efficiency (η = 90%)
  • Four selectable, fixed gain settings of nominally 21.6 dB, 27.6 dB, 31.1 dB and 33.6 dB
  • Differential inputs minimize common-mode noise
  • Standby and mute features
  • Short-circuit protection
  • Thermal overload protection
  • Externally synchronizable

Physical Attributes

  • L x W x H (mm): 82 x 50 x 12
  • Weight (gm) : 37

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Package Includes

  • 1 x TDA7492P 50W Wireless Digital Audio Receiver Amplifier Board

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