NJM2584M

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NJM2584M is a general purpose video process IC which is widely used in video surveillance, antenna switchs, tracking system and other industrial field. It enables high performance video processing with low power consumption.

The NJM2584M is an advanced signal processing IC with both analog and digital functions. It has a linear power amplifier, signal detection and signal conditioning logic, a microphone preamplifier, and a digital signal processor. The signal conditioning is used to adapt the signal level between the analog signal and the signal processor, while the microphone preamplifier amplifies stereo signals from sources such as microphones or other audio sources to the level needed for signal processing.

Its applications include video surveillance systems, antenna switches for passenger vehicles, tracking and other industrial applications. Video surveillance systems used NJM2584M for noise filtering, contrast enhancement and brightness improvement. The noise filtering eliminates noise from the video signal. Contrast enhancement boosts image details and reduces dark areas. Brightness improvement allows for better visibility of the video signal.

NJM2584M also has a video signal procssing block which contains two main circuits, the analogue video signal processing loops (AVSPL) and the digital video signal processing loops (DVSPL). AVSPL is basically a linear amplifier section which is used to increase signal level without digital signal processing. DVSPL is a digital signal processing circuit which enables digital signal processing of the analogue video signal. It includes a number of functional blocks such as ADC, DAC, PLL, linear power amplifier and chroma keying.

The NJM2584M has an adjustable gain, allowing it to be used for various signals. Its adjustable gain helps to maximize the signal-to-noise ratio of the signal, making it suitable for use in noisy environments. The gain can be adjusted by changing the resistance value at the specified pins. It also has a built-in temperature compensator which helps to maintain a stable operating temperature range. On the other side, the IC also contains micro\'s and channel control circuitry with 8 channels. The channels can be used to connect the video sources and to control the video signal.

NJM2584M working principle is based on the amplification and filtering of the video signal. The signal is filtered through the primary signal through the passband and providing the output to the subsequent stages. This signal processing helps to reduce the noise and also to improve the picture contrast. The signal is then amplified and converted to an analogue form which is then transmitted to a digital form which is ready to be displayed.

In conclusion, NJM2584M is an advanced signal processing IC which offers both analog and digital functions. It is used in many industrial fields such as video surveillance, antenna switchs, tracking and other industrial applications. It has adjustable gain, temperature compensator and built-in micro\'s and channel control circuitry which enables signal processing with low power consumption. In addition, its working principle is based on signal amplification and filtering which produces better video signals with greater signal-to-noise ratio.

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