SKYWORKS 514KAC002272BAGR

The Si514 user-programmable I²C XO utilizes advanced PLL technology to provide any frequency from 100 kHz to 250 MHz with programming resolution of 0.026 parts per billion. The Si514 uses a single integrated crystal and proprietary DSPLL synthesizer to generate any frequency across this range using simple I²C commands. Ultra-fine tuning resolution replaces DACs and VCXOs with an all-digital PLL solution that improves performance where synchronization is necessary or in free-running reference clock applications. This solution provides superior supply noise rejection, simplifying low jitter clock generation in noisy environments. Crystal ESR and DLD are individually production-tested to guarantee performance and enhance reliability. The Si514 is factory-configurable for a wide variety of user specifications, including startup frequency, ρ²C (overline) address, supply voltage, output format, and stability. Specific configurations are factory-programmed at time of shipment, eliminating long lead times and non-recurring engineering charges associated with custom frequency oscillators.

• Programmable to any frequency from 100 kHz to 250 MHz
• 0.026 ppb frequency tuning resolution
• Glitch suppression on OE, power on and frequency transitions
• Low jitter operation
• 2 - to 4 - week lead times
• Total stability includes 10 - year aging
• Comprehensive production test coverage includes crystal ESR and DLD
• On - chip LDO for power supply noise filtering
• 3.3, 2.5, or 1.8 V operation
• Differential (LVPECL, LVDS, HCSL) or CMOS output options
• Optional integrated 1:2 CMOS fanout buffer
• Industry standard 5x7, 3.2x5, and 2.5x3.2 mm packages
• -40 to 85℃ operation
• All - digital PLLs
• DAC + VCXO replacement
• SONET/SDH/OTN
• 3G - SDI/HD - SDI/SDI
• Datacom
• Industrial automation
• FPGA/ASIC clock generation
• FPGA synchronization