DS90CR484AVJD/NOPB

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The DS90CR484AVJD/NOPB, or “CR484” for short, is a type of Interface - Serializers and Deserializers (or SERDES) chip. It’s a simple yet powerful device that can be used for a variety of applications. In this article, we’ll take a closer look at how the CR484 works and how it can be used.

Application Field

The CR484 is a highly flexible, low-cost, high-speed serializer-deserializer that supports up to four lanes of interface. It’s designed for use in embedded systems and is used to transfer data between devices with different physical interfaces. The major applications include automotive infotainment systems, data storage, dot-matrix displays, and industrial control systems.

The chip is ideal for automotive applications due to its ability to support up to 10 bits per lane, which is more than enough to cover the data rates of 1080p HD video. It also has an integrated 100-MHz clock generator and reference line to enable clock-synchronous data transfers. The device also has an integrated line speed control function for providing flexible control over the channel speed.

Working Principle

The CR484 uses a technique called differential signaling, which involves transmitting the data between two points using a differential voltage between the two wires. The device takes an input signal and converts it into a differential signal that can be sent over long distances with minimal signal degradation. The differential voltage is sent in parallel with the data that is being sent, and each data line within the CR484 is associated with its own differential voltage. This allows for precise transmission of the data bits over long distances.

When the data arrives at the other end, the receiving device needs to convert the differential voltage back into the original input signal. This is done with a special circuit called the Equalizer, which can detect the differential voltage and convert it into the original input signal. The Equalizer recreates the original signal from the differential voltage, and then the device is able to act on the newly acquired information.

The CR484 is a versatile component that can be used for a variety of applications. It’s capable of handling data speeds of up to 10 bits per lane and has a low power consumption, making it ideal for applications where power efficiency is a priority. It also has robust electrostatic discharge (ESD) and current-limit protection, which helps to ensure that data is reliably transmitted without any errors.

In summary, the DS90CR484AVJD/NOPB is a low-cost, high-speed serializer-deserializer that supports up to four lanes of interface. It’s designed for use in embedded systems and is used to transfer data between devices with different physical interfaces. It has an integrated 100-MHz clock generator and reference line to enable clock-synchronous data transfers, and its differential signaling technique allows for the transmission of data with minimal signal degradation. The device also has a low power consumption, robust ESD protection, and current-limit protection, making it ideal for applications in the automotive industry and other embedded systems.

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