MK1491-14 Datasheet | Integrated Circuit Systems

.. MK1491-14 OPTi ACPI Firestar Clock Source Description The MK1491-14 is a low cost, low jitter, high performance clock synthesizer for OPTi’s Firestar and Firestar+ chipsets for Pentium™ Processor-based mobile puter applications. Using analog Phase-Locked Loop (PLL) techniques, the device uses a 14.318 MHz crystal input to produce multiple output clocks up to 75 MHz. It provides selectable Host and PCI local bus clocks as well as selectable clocks for Super I/O or Universal Serial Bus (USB). The device has up to seven Host output clocks. The chip has three different power down modes that reduce power on various clocks. Features - Packaged in 28 pin, 150 mil wide...