Details

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BUY TDA4605-3 https://www.utsource.net/itm/p/12610299.html

Parameter	Description	Min	Typ	Max	Unit
VCC	Supply Voltage	2.7	-	5.5	V
IQ	Quiescent Current (per channel)	-	1.8	-	mA
POUT	Output Power (VCC = 5V, RL = 8惟)	-	3.2	-	W
THD+N	Total Harmonic Distortion + Noise (VCC = 5V, RL = 8惟, f = 1kHz)	-	0.05	-	%
PSRR	Power Supply Rejection Ratio (f = 100Hz)	-	80	-	dB
SNR	Signal-to-Noise Ratio (A-weighted)	-	105	-	dB
GBW	Gain Bandwidth Product	-	1.2	-	MHz
SR	Slew Rate	-	3.5	-	V/渭s
VO	Output Voltage Swing (VCC = 5V, RL = 8惟)	-	4.5	-	V
TA	Operating Temperature Range	-40	-	85	掳C

Instructions for TDA4605-3

1. Supply Voltage:

   • Ensure the supply voltage (V_CC) is within the range of 2.7V to 5.5V.
   • Use a stable power supply to avoid voltage fluctuations that can affect performance.

2. Quiescent Current:

   • The quiescent current per channel is typically 1.8mA. This should be considered when designing the power supply to ensure it can handle the total current draw.

3. Output Power:

   • The typical output power is 3.2W when V_CC is 5V and the load resistance (RL) is 8惟. Adjust the load impedance as needed for your application.

4. Total Harmonic Distortion + Noise:

   • At 1kHz and with a 5V supply, the THD+N is typically 0.05%. This indicates good audio quality and minimal distortion.

5. Power Supply Rejection Ratio:

   • The PSRR at 100Hz is 80dB, which means the amplifier can effectively reject power supply noise.

6. Signal-to-Noise Ratio:

   • The SNR is 105dB (A-weighted), indicating a high level of signal purity and low noise.

7. Gain Bandwidth Product:

   • The GBW is 1.2MHz, which is suitable for most audio applications.

8. Slew Rate:

   • The slew rate is 3.5V/渭s, ensuring that the amplifier can handle fast transients without distortion.

9. Output Voltage Swing:

   • The output voltage swing is 4.5V when V_CC is 5V and the load resistance is 8惟. This provides a wide dynamic range.

10. Operating Temperature:

    • The operating temperature range is from -40掳C to 85掳C. Ensure the device is used within this range to avoid thermal damage.

11. PCB Layout:

    • Use a ground plane to minimize noise and improve thermal dissipation.
    • Keep the input and output traces short to reduce parasitic capacitance and inductance.
    • Place decoupling capacitors close to the power pins to filter out high-frequency noise.

12. Protection:

    • The TDA4605-3 includes built-in protection against short circuits, thermal overload, and overvoltage. However, it is still important to design the circuit to prevent these conditions from occurring.

13. Application:

    • The TDA4605-3 is suitable for a variety of audio applications, including portable audio devices, home theater systems, and car audio.

(For reference only)