2 x 25 Watt 6 Ohm Class D Audio Amplifier Board - TDA7492
Brief Introduction:
This amplifier is a state-of-the-art dual channel Class-D audio amplifier which integrates ST’s TDA7492 as the driver. This amplifier is capable of delivering dual-channel amplification with each channel up to 25W. High quality and high performance components are used making this amplifier high-quality amplifier. Powered by 14V to 19V supply, it can be used in many applications like Background Music Systems. It also features thermal protection. In addition, on-board heat sink ensures excellent heat dissipation.
Features:
- Size: 4.8 ” x 3.6 ”
- Standby and mute function
- Supply voltage: DC 14V to 19V
- Gain adjustable
- Over/under voltage protection
- Over current protection
- Over temperature protection
Applications:
- Desktop amplifier
- Personal computers
- Microphone preamplifier
- Home DIY
- Vending machines, Lifts,Interactive kiosks
- Home theater receiver
- Car audio
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To improving the connection and measurement efficiency and saving the cost on installations, Sure Electronics provides a L-type aluminium bracket for audio amplifier boards. The aluminium bracket supports vertical and horizontal installtion ways to satisfy different installation requirements. With 4 M3 screw lock standoffs and 2 M3 pre-drilled mounting holes, audio amplifier boards could be installed on the bracket easily.
Specification:
Following table lists all typical data of the Amp board. For full specification, please refer to the
data sheet of ST’s TDA7492 chip.
TA = 25 °C, fIN = 1 kHz sine wave, RL= 8Ω, VCC = 25V. (Unless otherwise stated)
Parameter | Conditions | Min | Typ | Max |
Supply Voltage (V) | AA-AB32165 | 14 | 16 | 19 |
Quiescent Current (mA) | FAN ON,STBY Disable | - | 90 | - |
FAN ON,STBY Enable | - | 50 | - |
FAN OFF,STBY Disable | - | 40 | |
FAN OFF,STBY Enable | | 10 | |
Input Sensitivity (mV) | 21.6dB | - | 257 | - |
27.6dB | 258 |
31.1dB | 258 |
33.6dB | 258 |
Input Impedance (Kohm) | - | 48 | 60 | - |
Gain (dB) | GAIN0 = L, GAIN1 = L | 20.6 | 21.6 | 22.6 |
GAIN0 = L, GAIN1 = H | 26.6 | 27.6 | 28.6 |
GAIN0 = H, GAIN1 = L | 30.1 | 31.1 | 32.1 |
GAIN0 = H, GAIN1 = H | 32.6 | 33.6 | 34.6 |
Output Power (W rms) | RL= 6Ω, THD = 10%, VCC = 25V | - | 25 | - |
Efficiency (%) | Both channels output rating power. | - | >90 | - |
Minimum Load (ohm) | - | - | 6 | - |
Frequency Response (dB) | ±3dB | 20 | - | 22k |
Operating Temperature (℃) | - | 0 | 20 | 50 |
Package content:
2 x 25 Watt 6 Ohm Class D Audio Amplifier Board x 1