Details

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BUY TDA7718B https://www.utsource.net/itm/p/12596461.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating	4.5	12	18	V
Quiescent Current	Iq	No signal, Vcc=12V	-	30	-	mA
Output Power	POM	THD = 10%, RL = 8Ω	-	7	-	W
Total Harmonic Distortion	THD	Po = 1W, RL = 8Ω	-	0.05	-	%
Signal-to-Noise Ratio	SNR	A-weighted	-	96	-	dB
Input Sensitivity	Vi	Vo = 2Vrms	-	200	-	mV
Input Impedance	Zi		-	47	-	kΩ

Instructions for TDA7718B

1. Power Supply Connection:

   • Connect the positive supply voltage (Vcc) to pin 8.
   • Connect the negative supply (GND) to pin 4.

2. Input Signal Connection:

   • Connect the input signal to pin 1 for the left channel and pin 2 for the right channel.

3. Output Configuration:

   • Connect the output from pin 6 for the left channel and pin 7 for the right channel to the speaker or load.

4. Decoupling Capacitors:

   • Place a 100nF capacitor close to the power supply pins to reduce noise and stabilize the supply voltage.

5. Speaker Protection:

   • Use appropriate inductors or filters between the output and speakers to protect against high-frequency oscillations.

6. Thermal Considerations:

   • Ensure adequate heat sinking if operating at high power levels to maintain device reliability.

7. Operating Temperature Range:

   • The device is designed to operate within a temperature range of -40°C to +85°C.

8. Protection Circuits:

   • The TDA7718B includes internal protection circuits for thermal shutdown and short-circuit protection. Ensure these features are not compromised by external circuitry.

(For reference only)