DESCRIPTION
The XRT8010 is a monolithic analog phase locked loop that provides a high frequency LVDS clock output, using a low frequency crystal or reference clock. It is designed for SONET/SDH and other low jitter applications.The high performance of the IC provides a very low jitter LVDS clock output up to 320 MHz, while operating at 3.3 volts. The XRT8010 has a selectable 8x or 16x internal multiplier for an external crystal or signal source. The Output Enable pin provides a true disconnect for the LVDS output. The very compact (4 x 4 mm) low inductance package is ideal for high frequency operation.

FEATURES
• 156 or 320 MHz Operating Range
• Low Output Jitter:
    ■ 0.0009 UIRMS typical @ 155.52 MHz, per
    Telcordia GR-253-CORE for OC-3.
• On Chip Crystal Oscillator Circuit
    ■ Optimized for 15 to 40 MHz crystals
    ■ Uses parallel fundamental mode
• Selectable 8x or 16x multiplier
• Selectable ÷1 or ÷2 LVDS output
• LVDS output meets TIA/EIA 644A Specification (2001)
• 3.3V Low power CMOS: <80 mW typical
• -40°C to +85°C operating temperature
• Extremely small 16-lead QFN package

APPLICATIONS
• Gigabit Ethernet
• SONET/SDH
• SPI-4 Phase 2
• 8x or 16x Clock Multiplier for
    ■ Computer
    ■ Telecommunications Sytems