Details

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BUY TDA2822G https://www.utsource.net/itm/p/11623545.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc		1.8	5	9	V
Quiescent Current	Iq	VS = 5V, no load		4		mA
Output Power	POM	RL=8Ω, THD=10%		0.45		W
Total Harmonic Distortion	THD	Po = 0.45W, RL=8Ω		10		%
Signal-to-Noise Ratio	SNR	VS = 5V		72		dB
Input Sensitivity	Vin	Po = 0.45W, RL=8Ω		200		mV
Operating Temperature	Toper		-40		85	°C

Instructions for TDA2822G

1. Power Supply Connection:

   • Connect the supply voltage (Vcc) between pin 6 and pin 4. Ensure the voltage range is within 1.8V to 9V.

2. Grounding:

   • Pin 4 serves as the ground connection and should be connected to the system ground.

3. Input Connections:

   • Connect the audio input signals to pins 2 and 5. These are the inputs for the two channels of the amplifier.

4. Output Connections:

   • Connect the speaker loads to pins 1 and 3. Ensure that the speakers have an impedance suitable for the amplifier's output power rating.

5. Decoupling Capacitors:

   • Place a decoupling capacitor close to the power supply pins to stabilize the power supply and reduce noise. A typical value is 10μF.

6. Operating Temperature:

   • Ensure that the operating environment temperature remains within -40°C to 85°C to maintain reliable operation.

7. Protection Circuits:

   • Implement appropriate protection circuits like diodes or fuses on the power supply lines to protect against transient voltages and reverse polarity.

8. Layout Considerations:

   • Keep signal paths short and direct to minimize interference and ensure optimal performance.
   • Use ground planes to improve grounding and reduce noise pickup.

9. Testing:

   • After assembly, test the device under typical operating conditions to verify correct functionality and performance parameters.

(For reference only)