TDA7491HV: Top Choice in United States (USA) Utsource Holding Company Limited

Description

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Operating	12		48	V
Quiescent Current	IQ	VCC = 12V, No Load		50		mA
Output Power	POM	VCC = 12V, RL = 4Ω, THD = 10%		36		W
Frequency Response	fR	VCC = 12V, RL = 4Ω	20		20k	Hz
Signal-to-Noise Ratio	SNR	A-weighted, VCC = 12V		95		dB
Total Harmonic Distortion	THD	VCC = 12V, RL = 4Ω, PO = 1W		0.07		%
Channel Separation	CS	VCC = 12V, f = 1kHz		60		dB
Input Sensitivity	VIN	VCC = 12V, PO = 1W		250		mV

Power Supply Connection:
- Connect the positive terminal of the power supply to the VCC pin and the negative terminal to the GND pin. Ensure the supply voltage is within the operating range (12V to 48V).
Input Connections:
- Connect your audio signal source to the input pins (IN+ and IN-). The typical input sensitivity is around 250mV for 1W output power.
Output Connections:
- Connect the speaker or load to the output pins. Ensure the load resistance (RL) matches the design specifications for optimal performance.
Grounding:
- Properly ground all components to avoid noise and ensure stable operation. Ground connections should be short and direct.
Thermal Management:
- Ensure adequate heat dissipation as the device can get hot under high-power conditions. Use a heatsink if necessary.
Protection Circuits:
- The device includes built-in protection circuits such as thermal shutdown and short-circuit protection. These features help protect the IC from damage due to abnormal operating conditions.
Testing:
- Before full-scale use, test the setup with lower power levels to ensure everything is functioning correctly. Gradually increase the power level while monitoring temperature and sound quality.
Troubleshooting:
- If you encounter issues like distortion or no sound, check connections, supply voltage, and ensure the input signal is within the required range.

(For reference only)