SN761681DBT

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Linear - Video Processing is an essential field of electronic engineering. A great variety of electronic devices and components are used to handle or process video signal or image information. SN761681DBT is a chip based on the Advanced Technology Video Amplifier 2 (ATV 2) architecture, which can deliver high-quality video performance with low power consumption. This makes the SN761681DBT suitable for applications such as color monitors orConsumer Electronics that require low-power operation.

The SN761681DBT includes a combination of several blocks and circuits, namely the pre-amplifier, the programmable gain amplifier (PGA), the auto mapping circuit, the switched capacitor filter (SCF), the gamma correction circuit, the prescaling circuit, the output driver, and the video test output. Each of these blocks performs a specific task to improve the video signal quality.

The pre-amplifier provides improved video signal gain while keeping the noise low. The PGA is a programmable gain amplifier, which can control the gain of the video signal according to certain criteria. The auto mapping circuit allows the output video gain to be programmed based on the input signal level. The SCF is used to reduce ringing and artifacts in the video signal, achieve flat frequency response, and reduce the total harmonic distortion.

The gamma correction circuit ensures that the output video signal has the correct brightness and contrast. The prescaling circuit is used to reduce the output video signal to the desired size. The output driver is responsible for converting the digital signal into analogue. Finally, the video test output allows for easy design testing.

In summary, the SN761681DBT is a low-power chip that can be used for color monitors, consumer electronic devices, and other video processing applications. It is designed to improve the video signal quality by employing a combination of a pre-amplifier, a programmable gain amplifier, an auto-mapping circuit, a switched capacitor filter, a gamma correction circuit, a prescaling circuit, an output driver, and a video test output.

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