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The TDA7377 is a high-performance quad bridge audio amplifier IC designed for car radio and other audio applications. It delivers 45W of output power per channel, with low distortion of 0.1% THD, and features short-circuit protection, thermal shutdown, and mute and standby functions. This amplifier IC provides high-quality audio performance, reliability, and ease of use, making it an ideal choice for automotive and consumer audio systems.1. Quad Bridge Amplifier: Four independent channels with bridge-tied load (BTL) configuration.2. High Output Power: 45W per channel (4?, 1kHz, 10% THD).3. Low Distortion: 0.1% THD (1kHz, 1W, 4?).4. High Gain: 50dB (min) gain.5. Short-Circuit Protection: Protected against short circuits to GND, VCC, or output.6. Thermal Shutdown: Automatically shuts down in case of overheating.7. Low Quiescent Current: 30mA (max) in standby mode.