Details

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BUY TEA1522 https://www.utsource.net/itm/p/12608336.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Operating	4.5	-	5.5	V
Standby Current	ISB	VCC = 5V, no load	-	10	-	渭A
Operating Current	IOC	VCC = 5V, typical	-	300	-	渭A
Maximum Load Current	ILOAD	Per channel	-	100	200	mA
Shutdown Mode Current	ISD	VCC = 5V	-	0.1	-	渭A
Output Voltage Swing	VOS	No load	0.2	-	0.8	V
Power Supply Rejection	PSRR	100Hz	-	60	-	dB
Channel Separation	CS	1kHz	-	50	-	dB
Signal-to-Noise Ratio	SNR	A-weighted	-	70	-	dB
Total Harmonic Distortion	THD	1kHz, full power	-	0.1	-	%

Instructions for TEA1522

1. Power Supply Connection:

   • Connect the VCC pin to a stable 5V power supply.
   • Ensure the power supply can provide sufficient current to support the maximum load current requirements.

2. Grounding:

   • Connect all ground (GND) pins directly to the system ground to ensure proper operation and noise immunity.

3. Output Configuration:

   • Connect speakers or loads to the output channels ensuring that the load impedance is within the recommended range for optimal performance.

4. Shutdown Control:

   • Apply a logic high signal to the shutdown pin to place the device in low-power shutdown mode. Use a logic low signal to enable normal operation.

5. Input Signal:

   • Connect audio input signals to the appropriate input pins. Ensure the input signal level does not exceed the maximum ratings to avoid distortion.

6. Decoupling Capacitors:

   • Place decoupling capacitors close to the VCC and GND pins to minimize noise and improve stability. Typically, a 0.1渭F ceramic capacitor is recommended.

7. Thermal Considerations:

   • Ensure adequate heat dissipation if operating at higher currents or in environments with elevated temperatures. Consider using heatsinks or thermal pads as necessary.

8. Layout Recommendations:

   • Follow good PCB layout practices, keeping signal paths short and direct, especially for power and ground connections. Avoid routing sensitive analog signals near noisy digital lines.

(For reference only)