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| SI500 Silicon Oscillator Product Family September 2008 Introducing the SI500 Silicon Oscillator All silicon oscillator enables replacement of quartz and MEMS XOs with IC solution Supports any frequency from 0.9 to 200 MHz CMOS based architecture Improves reliability and performance High volume IC manufacturing flow enables short lead times 2 SI500 Replaces Quartz Oscillators Traditional Approach Silicon Labs Custom Resonator PLL IC Unique resonator required for each output frequency Custom frequencies require fabrication and qualification of new resonator Costly ceramic or metal packaging with hermetic sealing Complex manufacturing flow causes long, unpredictable lead times 3 Silicon Labs IC synthesizes all frequencies from single CMOS oscillator Factory-programmable to any frequency from to 200 MHz Standard IC plastic packaging (3.2x4 mm DFN) Short lead times (<2 weeks for samples) Frequency Control Market SI500 targets high volume <100 MHz XO market 4 Leapfrogs MEMS and Traditional Silicon Oscillators Silicon Labs SI500 Revolutionary technology! Single IC oscillator Standard 0.13 m CMOS Any frequency up to 200 MHz CMOS and differential formats Good jitter/phase noise Performance/Integration Traditional Silicon Oscillators Evolutionary technology Limited frequencies available to 75 MHz CMOS format only Poor jitter/phase noise MEMS Evolutionary technology Uses nanotechnology to build silicon resonator MEMS resonator separate from oscillator die Requires highly specialized wafer fabrication process CMOS format only Poor jitter/phase noise MEMS Resonator Oscillator Die 5 SI500 Silicon Oscillator (XLO) Quartz-free, all silicon oscillator Generates any frequency from 0.9 to 200 MHz Low jitter: 1.5 ps RMS phase jitter, 2 ps RMS period jitter (max) Wide selection of output formats: CMOS, LVPECL, LVDS, HCSL, SSTL Dual output CMOS clock oscillators available: produces 2 clocks at same frequency Driver stopped, tristate, and powerdown options available on OE pin Footprint compatible with 3.2x5.0 mm layout Small package: 3.2x4.0 mm DFN 0 to +70 oC operating temperature range Low voltage operation: 3.3, 2.5 and 1.8 V Low core power: 8 mA 6 Immunity to Shock and Vibration Improves Reliability Quartz XO Silicon Labs SI500 Hermetically Sealed Ceramic or Metal Package Crystal Plastic Package Silicon Oscillator Relies on mechanical resonator for oscillation Sensitive to shock and vibration Requires hermetic assembly to prevent crystal contamination from affecting device performance No moving parts Highly immune to shock and vibration Plastic IC packaging does not require hermetic seal, not susceptible to contamination Reliable startup and operation 7 High PSRR Simplifies Design SI500 provides bench-quality jitter performance in real-world applications Minimizes impact of power supply switching noise on system performance 8 Unmatched Performance and Reliability Key Feature Customer Benefits Standard, high volume IC manufacturing flow Short, reliable lead times: <2 weeks for samples Quick turn factory programming for standard/custom frequencies Simplified component selection Design flexibility Simplified component selection Excellent mechanical shock, vibration Fast, reliable startup (3 ms) Reliable long-term operation Improves system performance Provides extra margin to simplify design Simplifies design Reduces product development time Drop-in compatible with 3.2x5 mm XOs 100% CMOS silicon oscillator Any-rate frequency support from 0.9 to 200 MHz Differential clock formats High reliability Low jitter (0.9 ps rms period jitter) High PSRR 3.2x4 mm DFN packaging 9 SI500 Target Applications Market Consumer Storage Computing Imaging Office Automation Industrial Application Digital still cameras, camcorders Hard disk drives, servers PCI Express peripherals LCD displays Printers White goods, instrumentation, industrial control 10 SI500 Silicon Oscillator Selector Guide Part # SI500S Type XO Package 3.2x4 mm 4 pad Stability* 100 150 Output Format CMOS, SSTL LVPECL, LVDS, HCSL, dual output CMOS, diff CMOS, dual output SSTL, diff SSTL Frequency (MHz) 0.9 to 200 SI500D XO 3.2x4 mm 6 pad 100 150 0.9 to 200 * Inclusive of: initial frequency accuracy at 25 oC, operating temperature range, supply voltage change, output load change, 1st year aging at 25 oC, 260 oC reflow, shock and vibration Go to www.silabs.com/BuyXO to request part numbers 11 Easy to Use Tools and Documentation Product Documentation (www.silabs.com/timing) SI500S and SI500D data sheets EVB data sheet AN409: Output Clock Termination Guidelines Part Number Utility www.silabs.com/BuyXO Evaluation Boards Si50x-32x4-EVB Samples should be ordered separately Contact factory applications for exceptions Si50x-32x4-EVB 12 Summary Highest performance, all silicon oscillator enables replacement of quartz-based XOs CMOS-based architecture improves reliability and performance SI500 provides short, predictable lead times 13 www.silabs.com/Timing |
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