Details

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BUY LM386MX-1/NOPB https://www.utsource.net/itm/p/11216635.html
IC AMP CLASS AB MONO 325MW 8SOIC

Parameter	Symbol	Min	Typ	Max	Unit
Supply Voltage	Vcc	4	-	12	V
Power Consumption	ICC	-	4	-	mA
Input Resistance	Rin	50	-	-	kΩ
Voltage Gain	AV	20	200	200	(1)
Slew Rate	SR	-	0.5	-	V/μs
Output Swing	Vout	0.2	-	Vcc-0.2	V
THD+N at 1kHz, 1V out	THD+N	-	0.2	-	%
Operating Temperature	Toper	-40	-	85	°C
Storage Temperature	Tstg	-65	-	150	°C

Instructions for Use

1. Power Supply:

   • The LM386MX-1/NOPB operates with a supply voltage range of 4V to 12V. Ensure that the power supply is stable and within this range to avoid damage or improper operation.

2. Input Connection:

   • Connect the audio input signal to the input pins (pin 2 and pin 3). Pin 2 is the inverting input, and pin 3 is the non-inverting input. For single-ended inputs, connect the signal to pin 3 and ground pin 2.

3. Gain Adjustment:

   • The gain can be adjusted by connecting a capacitor between pins 1 and 8. For a gain of 20, leave pins 1 and 8 unconnected. For higher gains, use a capacitor as follows:
     • 10 μF for a gain of 200.
     • 22 μF for a gain of 400.

4. Output Connection:

   • The output is taken from pin 5. Connect a coupling capacitor (typically 10 μF) between pin 5 and the load to block any DC component.

5. Grounding:

   • Ensure proper grounding of all components to minimize noise and interference. Connect the ground pins (pin 4) to the system ground.

6. Thermal Considerations:

   • The operating temperature range is -40°C to 85°C. For extended temperature ranges, ensure adequate heat dissipation if the device is expected to operate near the maximum temperature.

7. Storage:

   • Store the device in a dry environment with temperatures ranging from -65°C to 150°C to prevent damage.

8. PCB Layout:

   • Keep the power supply lines short and use decoupling capacitors (0.1 μF and 10 μF) close to the power pins to filter out noise and ensure stable operation.

9. Testing:

   • Before finalizing the design, test the circuit under various conditions to ensure it meets the required performance specifications. Monitor the output for distortion and adjust the gain and input levels as necessary.

By following these instructions, you can ensure optimal performance and reliability of the LM386MX-1/NOPB in your audio amplifier applications.

(For reference only)