The recommended operating voltage range for NJM386BD is 4.5V to 12V, although it can operate up to 15V with reduced performance.
To ensure stability, use a bypass capacitor (typically 10uF to 100uF) between the supply pin and ground, and keep the input and output impedance low. Also, avoid using long wires or traces that can cause oscillations.
The maximum power dissipation of NJM386BD is 1.4W, so ensure that the device is properly heat-sinked and the ambient temperature is within the recommended range.
Yes, NJM386BD can be used as a headphone amplifier, but it's essential to consider the output power and impedance matching to ensure proper performance and prevent damage to the headphones.
To reduce noise and hum, use a well-regulated power supply, keep the circuit layout clean and compact, and use shielding or guard rings around the input and output stages. Also, consider adding noise-reducing components like ferrite beads or chokes.
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