Details

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BUY TDA8855H https://www.utsource.net/itm/p/12594841.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating	10		36	V
Standby Current	Isb	Vcc = 12V, no load		1		mA
Quiescent Current	Iq	Vcc = 12V, no signal		50		mA
Output Power (Per Channel)	Pout	Vcc = 12V, THD = 10%		45		W
Signal-to-Noise Ratio	SNR	A-weighted		98		dB
Total Harmonic Distortion	THD	Vcc = 12V, 1kHz, Po = 1W		0.05		%
Input Sensitivity	Vin	Vcc = 12V, Po = 1W		250		mV
Input Impedance	Zin	Line input		47		k惟

Instructions for TDA8855H:

1. Power Supply Connection:

   • Connect the power supply to the Vcc and GND pins. Ensure the voltage is within the specified range of 10V to 36V.

2. Standby Mode:

   • To put the device in standby mode, apply a logic low to the STBY pin. This reduces the current consumption significantly.

3. Signal Input:

   • Connect your audio source to the input pins. The typical input sensitivity is 250mV for an output power of 1W.

4. Output Configuration:

   • Connect the speaker or load to the output terminals. Ensure the impedance of the load matches the design specifications for optimal performance.

5. Heat Dissipation:

   • Since the device can operate at high power levels, ensure adequate heat dissipation by using a suitable heatsink.

6. Protection Circuits:

   • The device includes built-in protection against short circuits, thermal overload, and overvoltage. However, it is advisable to add external protection as necessary.

7. PCB Layout Considerations:

   • For best performance, keep the power supply lines short and use bypass capacitors close to the power pins. Follow good PCB layout practices to minimize noise and interference.

8. Initialization and Testing:

   • After installation, test the amplifier with a known good signal to verify correct operation. Adjust input levels and check for proper output power and sound quality.

(For reference only)