Details

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BUY TA7900S https://www.utsource.net/itm/p/12612350.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating	12	-	35	V
Quiescent Current	Iq	No Signal	-	15	-	mA
Output Power	Po	8惟 Load, THD 10%	-	20	-	W
Frequency Response		1W, 8惟 Load	20	-	20k	Hz
Signal-to-Noise Ratio	SNR	A-weighted	-	70	-	dB
Total Harmonic Distortion	THD	1kHz, 1W, 8惟 Load	-	0.5	-	%
Input Sensitivity	Vin	1kHz, 1W, 8惟 Load	200	-	600	mV
Input Impedance	Rin		-	47	-	k惟
Protection		Overcurrent, Thermal	-	-	-	-

Instructions for Using TA7900S

1. Power Supply:

   • Connect the positive terminal of the power supply to the Vcc pin.
   • Connect the negative terminal of the power supply to the GND pin.
   • Ensure the supply voltage is within the range of 12V to 35V.

2. Input Connection:

   • Connect the audio input signal to the IN+ and IN- pins.
   • The input impedance is 47k惟, so ensure the source impedance is compatible.

3. Output Connection:

   • Connect the speaker to the OUT+ and OUT- pins.
   • Use an 8惟 speaker for optimal performance.

4. Protection:

   • The IC has built-in overcurrent and thermal protection.
   • In case of overheating or excessive current draw, the IC will automatically shut down to prevent damage.

5. Quiescent Current:

   • The quiescent current is approximately 15mA when there is no signal input.

6. Frequency Response:

   • The frequency response is flat from 20Hz to 20kHz at 1W output with an 8惟 load.

7. Signal-to-Noise Ratio:

   • The signal-to-noise ratio is typically 70dB (A-weighted).

8. Total Harmonic Distortion:

   • The total harmonic distortion is less than 0.5% at 1kHz with 1W output and an 8惟 load.

9. Input Sensitivity:

   • The input sensitivity is between 200mV and 600mV for 1W output at 1kHz with an 8惟 load.

10. Mounting and Heat Dissipation:

    • Ensure proper heat dissipation by mounting the IC on a heatsink if continuous high power operation is required.
    • Follow the recommended PCB layout and thermal management guidelines to ensure reliable operation.

(For reference only)