Details

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BUY TDA7350 https://www.utsource.net/itm/p/192810.html
22W BRIDGE-STEREO AMPLIFIER FOR CAR RADIO

Parameter	Symbol	Min	Typ	Max	Unit
Supply Voltage	Vcc	4.5	12	16	V
Quiescent Current	Iq	-	15	-	mA
Output Power (BTL, 8Ω)	Pout	-	1.2	-	W
Total Harmonic Distortion	THD	-	0.5	-	%
Signal-to-Noise Ratio	SNR	-	90	-	dB
Input Sensitivity	Vin	200	500	1000	mV
Input Impedance	Zin	-	47	-	kΩ
Operating Temperature Range	Topr	-40	-	85	°C
Storage Temperature Range	Tstg	-40	-	125	°C

Instructions for Using TDA7350

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the range of 4.5V to 16V.
   • Use a stable power source to avoid voltage fluctuations that can affect performance.

2. Quiescent Current:

   • The quiescent current is typically 15mA. This value should be considered when designing the power supply circuit to ensure adequate power handling.

3. Output Configuration:

   • The TDA7350 can be configured in BTL (Bridge-Tied Load) mode for higher output power.
   • Connect the load (speaker) between the two output terminals in BTL mode.

4. Thermal Management:

   • Ensure proper heat dissipation by mounting the TDA7350 on a heatsink if operating at high power levels or in high ambient temperatures.
   • The operating temperature range is from -40°C to 85°C, and the storage temperature range is from -40°C to 125°C.

5. Input Signal:

   • The input sensitivity is typically 500mV, but it can range from 200mV to 1000mV.
   • The input impedance is 47kΩ, making it suitable for most audio sources.

6. Signal Quality:

   • The total harmonic distortion (THD) is typically 0.5%, ensuring good sound quality.
   • The signal-to-noise ratio (SNR) is 90dB, providing a clear and clean audio output.

7. Protection Circuits:

   • The TDA7350 includes built-in protection circuits for thermal overload and short-circuit conditions.
   • These protections will automatically shut down the device if it detects an issue, helping to prevent damage.

8. Layout Considerations:

   • Keep the power supply and ground connections as short as possible to minimize noise and improve stability.
   • Use decoupling capacitors close to the power pins to filter out any high-frequency noise.

9. Testing:

   • Before finalizing the design, test the amplifier with various input signals and loads to ensure it meets the required performance specifications.
   • Monitor the temperature and current draw during testing to ensure the device operates within safe limits.

(For reference only)