DS100BR210SQ/NOPB

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Signal Buffers, Repeaters, Splitters, are types of interface typically used to increase the length of a bus and to isolate the bus from clutter and interference. A closer look at the DS100BR210SQ/NOPB reveals that this interface can provide all of this as well as additional features, thanks to its sophisticated capabilities. To understand what this device can do, we should first take a look at its application field and working principle.

Application Field

The DS100BR210SQ/NOPB is an interface used to bridge signal data between two digital systems that operate with different global clock domains. This device can split and synchronously buffer a clock and data signal from the same source. It checks for boundary crossing between the two parts and generates an auto-reset signal for synchronization. In addition, the device can also serve as a signal retiming interface for single-ended and differential applications.

In terms of the environment this device is suitable for, the DS100BR210SQ/NOPB has an operating temperature range between 0 and 70 °C and supply voltage range between 2.3V to 3.3V, making it perfect for industrial applications. Furthermore, it’s ESD protection can handle up to 2000V, which reduces the risk of shocks or malfunctions in busy environments.

Working Principle

The DS100BR210SQ/NOPB is composed of two different sections; the frontend synchronizer (FES) and the regular differential output buffer (RDB). The FES section is responsible for checking the correctness of the input signal and performs synchronous buffering. It accepts the input clock and data signals, then checks the rising and falling edges in order to detect a zero-delay crossing. This is done by comparing the frequency, phase and edge positions of the clock and its associated data signals, then decides to assert or deassert a zero-delay crossing.

The output of the FES section is connected to the RDB section, which takes the inputs from the synchronizing buffer, determines the combination of output drivers and controls the driver enables. Depending on the ack signal it receives from the FES, the RDB starts to process the combination of input drivers andn their enables, then runs the predetermined output logic functions. The data output drivers are managed by the buffers’ logic to ensure that the data is correct and stable at the outputs.

The DS100BR210SQ/NOPB also has an adaptive eveling circuit that allows the device to provide a low-skew output signal. This circuit monitors the bus signals at both clock and data edges and adjusts the drive timing accordingly in order to reduce the delay further. This ensures minimal signal transmission errors and jitter upon output. The ESD protection of this device also helps with the stability and accuracy of the output.

The DS100BR210SQ/NOPB interface is a very useful tool for connecting two digital systems with different clock domains. It has wide application range despite its small size, and efficient operation and robust ESD protection layer make it suitable for even the busiest environments.

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