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The maximum power supply voltage for the TDA7294V is 40V, but it's recommended to operate it between 12V to 36V for optimal performance.
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To prevent overheating, ensure good heat sinking, use a heat sink with a thermal resistance of 2°C/W or less, and keep the ambient temperature below 40°C. You can also use thermal shutdown protection circuits.
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The minimum load impedance for the TDA7294V is 2 ohms, and the maximum is 8 ohms. Operating outside this range may affect the amplifier's performance and stability.
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Yes, the TDA7294V can be used as a bridge amplifier. However, you'll need to use two devices, one for each channel, and ensure proper phasing and synchronization to avoid destructive interference.
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To reduce noise and hum, use a well-regulated power supply, add decoupling capacitors, and ensure good grounding and shielding. You can also use noise filters and hum eliminators in the signal path.