NJM2135D

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NJM2135D is a high-fidelity audio amplifier produced by New Japan Radio. It is a linear type amplifier that works using voltage amplifying technology and a NPN silicon transistor as an active element. In terms of its application field, NJM2135D is suitable for both audio-video equipment and other consumer appliances.

In regards to its working principle, NJM2135D has two parts - the input (impedance) part and the output (amplification) part. The input part consists of an inverter and an NPN transistor which receives a signal and amplifies it. This amplified signal is then sent to the output part. Here a magnetic amplifier is used to boost the signal level further and an output transformer helps to improve the device\'s gain by converting the voltage from low to high.

NJM2135D also features a built-in high-cut filter and low-cut filter which can adjust the bass and treble levels respectively to best suit specific applications. Additionally, the device comes with an input attenuator which helps to reduce the amount of distortion and noise.

NJM2135D offers an excellent fidelity and distortion ratio. The amplification range is wide (2 dB to greater than 70 dB) and the distortion level is low within the frequency range of 20 Hz to 20 kHz. Its extensive voltage range (3.3V to 28V) and current range (2A quiescent, 3A peak) enable it to work in a variety of applications.

NJM2135D also comes with a few protection features to ensure the safety of the users and their equipment. These protections include short-circuit protection, heat sink protection, overvoltage protection and thermal protection.

Overall, NJM2135D is an ideal choice for those looking for a linear audio amplifier to enhance the sound quality of their audio-video equipment, or other consumer appliances. It has a wide input-output range, excellent distortion and fidelity and is equipped with plenty of protecting features as well.

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