SI514

Si514 ANY-FREQUENCY I2C PROGRAMMABLE XO (100 kHZ TO 250 MHZ) Features  Programmable to any frequency  On-chip LDO for power supply from 100 kHz to 250 MHz noise filtering  0.026 ppb frequency tuning  3.3, 2.5, or 1.8 V operation resolution  Differential (LVPECL, LVDS,  Glitch suppression on OE, power HCSL) or CMOS output options on and frequency transitions  Optional integrated 1:2 CMOS  Low jitter operation fanout buffer  2- to 4-week lead times  Industry standard 5 x 7 and  Total stability includes 10-year 3.2 x 5 mm packages aging  –40 to 85 oC operation  Comprehensive production test coverage includes crystal ESR and DLD Applications  All-digital PLLs  DAC+ VCXO replacement  SONET/SDH/OTN  3G-SDI/HD-SDI/SDI  Datacom  Industrial automation  FPGA/ASIC clock generation  FPGA synchronization Description The Si514 user-programmable I2C XO utilizes Silicon Laboratories' 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 Silicon Labs’ 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 cloc...