Details

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BUY TDA2009A https://www.utsource.net/itm/p/11535261.html

Parameter	Symbol	Min	Typical	Max	Unit
Supply Voltage	Vcc	4.5	-	18	V
Quiescent Current	Iq	-	12	-	mA
Output Power (8惟, THD 10%)	Pout	-	2 x 1.3	-	W
Total Harmonic Distortion (THD)	THD	-	0.5	-	%
Signal-to-Noise Ratio (SNR)	SNR	-	75	-	dB
Input Sensitivity (for 1W into 8惟)	Vi	-	250	-	mV
Input Impedance	Zi	-	47	-	k惟
Operating Temperature Range	Toper	-25	-	+85	掳C
Storage Temperature Range	Tstg	-65	-	+150	掳C

Instructions for Use:

1. Supply Voltage:

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

2. Quiescent Current:

   • The typical quiescent current is 12mA. This should be considered when designing the power supply circuit to ensure efficient operation.

3. Output Power:

   • The TDA2009A can deliver up to 2 x 1.3W into an 8惟 load with a total harmonic distortion of 10%. For optimal performance, use an appropriate speaker impedance.

4. Total Harmonic Distortion (THD):

   • The typical THD is 0.5%. To minimize distortion, ensure the input signal level is within the recommended range and the load impedance is correctly matched.

5. Signal-to-Noise Ratio (SNR):

   • The typical SNR is 75dB. This indicates the quality of the audio output. Higher SNR values result in better sound clarity.

6. Input Sensitivity:

   • For an output power of 1W into an 8惟 load, the typical input sensitivity is 250mV. Adjust the input signal level accordingly to achieve the desired output power.

7. Input Impedance:

   • The typical input impedance is 47k惟. This should be considered when connecting the input signal to the amplifier to avoid loading issues.

8. Operating Temperature Range:

   • The device can operate within a temperature range of -25掳C to +85掳C. Ensure the operating environment does not exceed these limits to prevent damage.

9. Storage Temperature Range:

   • The device can be stored in temperatures ranging from -65掳C to +150掳C. However, avoid prolonged exposure to extreme temperatures to maintain reliability.

10. Mounting and Layout:

    • Use a good heat sink if the amplifier will be operating at high power levels or in high ambient temperatures.
    • Keep the layout compact to minimize noise and interference.
    • Use bypass capacitors (e.g., 100nF and 10渭F) close to the power supply pins to filter out noise and ensure stable operation.

11. Protection Circuits:

    • The TDA2009A includes internal protection circuits for short-circuit, thermal overload, and overvoltage conditions. However, it is still advisable to implement external protection measures for robust design.

By following these instructions, you can ensure the TDA2009A operates reliably and efficiently in your audio application.

(For reference only)