NJM2268D

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The NJM2268D is a linear amplifier designed for video applications, often used to amplify or attenuate video or sync signals in pro-audio and broadcast equipment. It has a very stable gain and offset response for use in high-performance applications.

The NJM2268D consists of two differential amplifiers with a gain adjustment potentiometer connected to a summing amplifier. The differential amplifiers are designed to offer a high common mode rejection ratio (CMRR) of 82 dB typ. This means that the output signal will not be affected by the common mode voltage even when the input common mode voltage is high. The CMRR is also very stable with temperature, making it ideal for use in high-temperature environments.

The NJM2268D also includes a sync amplifier which is used to detect sync signal pulses (in NTSC or PAL formats). It provides an output signal that is proportional to the timing and amplitude of the sync signal pulses. The sync amplifier is very reliable in detecting very small and weak sync signals, making it ideal for use in challenging signal detection applications.

The differential amplifiers in the NJM2268D operate from a single-ended input and will amplify the signal by a fixed gain of +18 dB. The gain can be adjusted from 0dB to +18dB in 0.1dB increments.The NJM2268D also has an adjustable voltage offset control that allows for precision offset tuning. It also features a low-noise differential gain/phase (DGA) architecture which minimizes the distortion of the signal and reduces the noise level of the system.

The NJM2268D is ideal for use in pro-audio applications, video signal processing, video editing, broadcast video systems and any applications that require high-performance video signal amplification and signal detection. Its high CMRR and low noise make it especially suitable for use in professional equipment.

In summary, the NJM2268D is an excellent choice for video applications that require high quality signal amplification and detection. It is designed for a wide range of applications, from professional broadcasting and editing to consumer electronics and video signal processing.

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