ICS831752I

Clock Switch for ATCA/AMC and PCIe Applications ICS831752I DATA SHEET General Description The ICS831752I is a high-performance, differential HCSL clock switch. The device is designed for the routing of PCIe clock signals in ATCA/AMC system and is optimized for PCIe Gen 1, Gen 2 and Gen 3. The device has one differential, bi-directional I/O (FCLK) for connection to ATCA clock sources and to clock receivers through a connector. The differential clock input CLK is the local clock input and the HCSL output Q is the local clock output. In the common clock mode, FCLK serves as an input and is routed to the differential HCSL output Q. There are two local clock modes. In the local clock mode 0, CLK is the input, Q is the clock output and FCLK is in high-impedance state. In the local clock mode 1, CLK is the input and both Q and FCLK are the outputs of the locally generated PCIe clock signal. The ICS831752I is characterized to operate from a 3.3V power or 2.5V power supply. The ICS831752I supports the switching of PCI Express (2.5 Gb/s), Gen 2 (5 Gb/s) and Gen 3 (8 Gb/s) clock signals. Pin Assignment DIR_SEL nOEFCLK VDD FCLK nFCLK GND CLK nCLK 1 2 3 4 5 6 7 8 16 IREF 15 GND 14 VDD 13 Q 12 nQ 11 GND 10 VDD 9 nc ICS831752I 16-lead TSSOP 4.4mm x 5.0mm x 0.925mmpackage body G Package, Top View Features Clock switch for PCIe and ATCA/AMC applications Supports local and common ATCA/AMC clock modes Bi-directional clock I/O FCLK: - When operating as an output, FCLK is a source-te...