PI49FCT3802LE

The PI49FCT3802LE is a high-performance bus-oriented clock driver that acts like a hub to accurately transmit, repeat, buffer and isolate high-speed signal paths. In order to improve system design reliability and reduce engineering and development costs, this device is specially designed with a set of features to minimize system time margin problems. In the digital design, a variety of clock signals are generated, transmitted and received in serial and parallel form. The PI49FCT3802LE can transfer these incoming signals to its output pins in a number of ways, and can provide a way to buffer, isolate and eventually drive the clock signals from one point to another.

Application Field of PI49FCT3802LE

The PI49FCT3802LE clock driver is mainly used for applications where signals require buffering, transmiting and isolating. As such, it plays an important role in high speed digital systems with the following application fields:

• Computer bus
• High speed clock and data transmission
• Peripheral processor and control
• Networking applications
• Telecommunications systems
• Data acquisition and instrumentation systems
• Memory and drive controller design

The broad compatibility and flexibility of this clock driver make it a suitable for a wide variety of applications ranging from high-speed data transmission and buffering to general clock/data multiplexing. By providing a low-noise, low-skew, jitter-free clock waveform, the PI49FCT3802LE improves the performance of digital systems.

Working Principle of PI49FCT3802LE

The PI49FCT3802LE functions as a single-common buffer-driver design that can accept at most four inputs but can drive up to eight outputs. The four inputs can be temporally divided into three clock inputs and one single/differential input. The clock inputs are labeled A0, A1, and A2, and the single/differential input is labeled X. Out of the eight outputs, four outputs are labeled as Y1, Y2, Y3, and Y4, and has the same switch setting as X. The other four labeled as Y5, Y6, Y7 and Y8 are found to be connected to the clock inputs.

This clock driver acquires a clock signal from the inputs and divides it depending on the output ratios selected. The device can repeat, invert, and level shift clock signals to macrocells with different voltage levels. This can be accomplished by selecting the appropriate output ratio for the given system. The device can also be set to enable “parity” when needed. This involves the insertion of a one-clock delay through the single/differential input, which can help in detecting errors in transmitted signals.

The PI49FCT3802LE contains built-in control pins that allow the user to control a particular output. They can be used to enable or disable the clock output, as well as turn off any of the outputs. To reduce clock glitching and to minimize the impact of the output enable (OE) pin on the input propagation delay, the PI49FCT3802LE also features a glitch eliminator on the outputs.

The PI49FCT3802LE is a low-skew and low-jitter clock driver that is compatible with LVTTL, LVDS, ECL and LVPECL clock systems. Its wide operating voltage range and the power savings from its low dynamic power consumption make this device an ideal choice for high performance clock and data transmission.

In summary, the PI49FCT3802LE clock driver is used for buffering signals in high speed digital systems. It is capable of accepting up to four inputs and driving up to eight outputs. It contains a number of features, such as multiple input types, built-in control pins and a glitch eliminator, that improve its performance. It is suitable for high-speed data transmission applications, as it provides low-skew and low-jitter clock outputs and has a wide operating voltage range.