49FCT3805EPYGI

The 49FCT3805EPYGI is an integrated circuit (IC) designed by Fairchild Semiconductor and is a high-performance differential bus transceiver. It is part of their clock/timing/signal distribution product portfolio and is categorized as a clock buffer and driver. It is designed to transmit signals between data and address buses and is used in applications requiring very fast, high-skew capability. The IC is characterized by its low-power consumption and its capability to support a wide variety of logic types.

The 49FCT3805EPYGI is available in various packages, most commonly the 48-pin QFP package. It is capable of transmitting data up to 1000MHz and operates off of a 5V supply.

Applicatons

The 49FCT3805EPYGI is best suited for applications where very low-power and high-speed bus data is required. Typical applications include Ethernet/IP communication systems, data storage systems, automotive audio systems and other high-end systems requiring very fast data transfer.

Working Principle

The 49FCT3805EPYGI driver operates in two distinct modes: normal and low-power mode. In normal mode, the IC’s output is controlled by a logical combination (AND/NAND) of a two-level input. In low-power mode, the IC’s output is driven by a single-level input.

The 49FCT3805EPYGI is capable of transmitting data up to 1000MHz and operates off of five volt power supplies. It is capable of driving up to 16 differential pairs and allowing up to 25-pin capacitive load. The IC also has an internal weak pull-up resistor and several programmable device features.

The IC’s differential lines are designed to reduce noise and reduce ground bounce. This is done through the use of two low capacitance ESD diodes on each line, one for the transmission of data and the other for the reception of data. This combination helps reduce EMI radiation and radio frequency interference.

Conclusion

The 49FCT3805EPYGI clock buffer/driver is a high-performance, low-power IC designed by Fairchild Semiconductor. It is best suited for applications where very low-power and high-speed data transfer requirements are needed and is capable of supporting a wide variety of logic types. It is available in various packages and has an internal weak pull-up resistor and various programmable device features.