NJM2149D

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NJM2149D is a type of audio linear amplifier widely used for audio and other related applications. The device is capable of providing high current drive, low noise, and precise voltage control. This device is suitable for use in professional audio apparatus, domestic audio and video systems, portable radios, power amplifiers and other electronic equipment.

The NJM2149D has a power amplification stage and a voltage driving stage, which are designed to amplify audio signals and convert them into precise output voltages. The device is equipped with two level shifters and two class-AB power amps, which are designed to provide stable and low-distortion audio outputs. The device also has a current-generation circuit, which generates bias current proportional to the input signal level.

The NJM2149D is a dual-bias voltage driver, with an operating voltage of 25V. It has a quiescent current of 8mA with an operating temperature range from -40℃ to + 85℃. The power supply pins of the device provide ± 15V. The device has a high open-loop gain and a wide dynamic range of over 50dB. The composite gain is adjustable to a maximum of 69dB.

In order to provide the best performance and stability, the NJM2149D has a high-precision temperature compensation circuitry. The device is also equipped with a soft-start circuit, which prevents large inrush currents during startup. Furthermore, the device has an impedance matching circuit, which allows the NJM2149D to drive a wide range of input signals.

The NJM2149D can be used for various audio applications such as pre-amplifiers, headphone amplifiers, power amplifiers, equalizers, and high-end audio effects. It is capable of driving low impedance loads and can be used for a wide variety of applications. The high current drive makes the NJM2149D ideal for powering higher-power audio equipment. The device can also be used for signal line and electric drums as well as guitar amplifiers.

The NJM2149D also has low noise and low distortion levels. It is designed to drive low and high impedance loads, providing a clean signal with no cross-over distortion. The device is also designed to provide linear current control, which eliminates non-linear distortion caused by mismatched loads. Furthermore, the NJM2149D provides excellent linearity over the entire frequency range.

In conclusion, the NJM2149D is an excellent choice for audio and other related applications that require a high fidelity signal output. The device is capable of providing both high current drive and low noise and distortion levels. It is equipped with several features such as precision temperature compensation, soft-start, current-generation, and impedance matching, making it ideal for a wide variety of applications. The NJM2149D is suitable for use in professional audio apparatus, domestic audio and video systems, portable radios, power amplifiers, and other electronic equipment.

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