MK1491-06J Datasheet | Integrated Circuit Systems

Description The MK1491-06 is a low-cost, low-jitter, high-performance clock synthesizer for AMD’s Geode-based puter and portable appliance applications. Using patented analog Phased-Locked Loop (PLL) techniques, the device accepts a 14.318 MHz crystal input to produce multiple output clocks. It provides selectable PCI local bus and AC97 audio clocks, 24 MHz and 48 MHz clocks for Super I/O and USB, as well as multiple Reference outputs. The device has multiple power-down modes to reduce power consumption. Block Diagram Features - Packaged in 28-pin SOIC or in 28-pin SSOP - Available in Pb (lead) free - Provides all critical timing for the AMD Geode panion chip - Four PCI clocks - Selectable PCIF on up to 2 outputs - Early PCI clock selectability - Up to 4 Reference clocks - 48 MHz USB and 24MHz SIO support - AC97 audio clock - Multiple power down modes - Low EMI Enable pin reduces EMI radiation on PCI clocks...