Details

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BUY TDA7233 https://www.utsource.net/itm/p/11713936.html
IC AMP AUDIO 1.9W MONO AB 8DIP

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc		4.5	6	18	V
Quiescent Current	Iq	No load	-	10	20	mA
Output Power	Po	8Ω, THD = 1%	1.5	2.5	3.5	W
Total Harmonic Distortion	THD	1kHz, 1W, 8Ω	-	0.1	0.5	%
Signal-to-Noise Ratio	SNR	A-weighted	90	95	100	dB
Input Sensitivity	Vi	For 1W output, 8Ω	200	300	400	mV
Input Impedance	Zi		10	20	30	kΩ
Operating Temperature	Toper		-40	25	85	°C
Storage Temperature	Tstg		-65	-	150	°C

Instructions for Use:

1. Supply Voltage:

   • Ensure the supply voltage is within the range of 4.5V to 18V.
   • Use a stable power supply to avoid voltage fluctuations that can affect performance.

2. Quiescent Current:

   • The quiescent current should be monitored to ensure it remains within the typical range of 10mA to 20mA under no-load conditions.

3. Output Power:

   • The TDA7233 can deliver up to 3.5W of power into an 8Ω load with a total harmonic distortion (THD) of 1% at 1kHz.

4. Total Harmonic Distortion:

   • Keep the THD below 0.5% for optimal audio quality. At 1kHz and 1W output into an 8Ω load, the typical THD is 0.1%.

5. Signal-to-Noise Ratio:

   • The SNR should be maintained above 90dB for good audio clarity. A higher SNR results in less background noise.

6. Input Sensitivity:

   • Set the input sensitivity to around 300mV for a 1W output into an 8Ω load to achieve the best performance.

7. Input Impedance:

   • The input impedance is typically around 20kΩ, which allows for compatibility with various audio sources.

8. Operating Temperature:

   • Ensure the operating temperature is within the range of -40°C to 85°C to prevent thermal damage and maintain reliability.

9. Storage Temperature:

   • Store the TDA7233 in an environment where the temperature ranges from -65°C to 150°C to avoid physical damage.

10. Mounting and Layout:

    • Use a proper PCB layout with adequate heat sinking to manage heat dissipation.
    • Place decoupling capacitors close to the power pins to reduce noise and improve stability.

11. Protection Circuits:

    • The TDA7233 includes built-in protection circuits for short-circuit, over-temperature, and over-voltage conditions. Ensure these features are not bypassed or disabled.

12. Testing and Troubleshooting:

    • Test the amplifier with a known good signal source and load to verify its performance.
    • If issues arise, check the power supply, connections, and component values for any discrepancies.

(For reference only)