MK1491-14 Overview
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 computer 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.
Key Features
- Packaged in 28 pin, 150 mil wide SSOP
- Provides all critical timing for OPTi ACPI Firestar and Firestar+
- Early Host clock of 3.5ns
- Separate VDD and skew adjust for Host 5,6, and 7 supports field upgrade to Firestar+ and new 2.5V processors
- 48MHz USB, 24MHz SIO, and Audio clock support
- Single pin CPU(Host) slowdown to 33.3MHz
- Multiple power down modes
- Low EMI Enable pin reduces EMI radiation (patent pending)
