SW52212 datasheet(2/71 Pages) SILABS

2 / 71 page

1. Feature List

• 12/8/4/2-output 100 MHz PCIe Gen 1/2/3/4/5 and SRIS compliant clock generator, with push-pull HCSL output drivers

• High port count with push-pull HCSL outputs to support highly integrated solution, eliminating external resistors for the HCSL out-

put drivers

• Low jitter of 0.13 ps rms max to meet PCIe Gen5 specifications with design margin

• Low power consumption.

• Lowest power consumption in the industry for a 2-output PCIe clock generator

• Individual hardware control pins and I2C controls for Output Enable, Spread Spectrum Enable and Frequency Select

• Output Enable function easily disables unused outputs for power saving

• Spread Enable function to turn on/off spread spectrum and to select spread levels, either down spread 0.25% or 0.5%

• Frequency Select function to select output frequency of 100 MHz, 133 MHz, or 200 MHz (except Si52202 where the output fre-

quency is limited to 100 MHz. Please contact Silicon Labs for 133 MHz or 200 MHz in Si52202)

• All above functions are controlled by individual hardware pins or I2C

• Internal 100 Ω or 85 Ω impedance matching

• Eliminates external line matching resistor to reduce board space

• Adjustable slew rate to improve signal quality for different applications and board designs

• Power down (PWRDNb) function supports Wake-on LAN (except Si52202)

• One non-spread, 25 MHz LVMCOS reference clock output (except Si52202)

• A buffered 25 MHz LVCMOS clock output to drive ASICS or SoCs on board

• 25 MHz reference input

• Supports a standard crystal or clock input for flexibility

• I2C support with readback capabilities

• 1.5–1.8 V power supply with separate VDD and VDD_IO (1.05 to 1.8 V)

• Temperature range: –40 °C to 85 °C

• Small QFN packages to optimize board space. Smallest 2-output PCIe clock generator in the industry

• 64-pin QFN (9 x 9 mm) : 12-output

• 48-pin QFN (6 x 6 mm) : 8-output

• 32-pin QFN (5 x 5 mm) : 4-output

• 20-pin QFN (3 x 3 mm) : 2-output

• Pb-free, RoHS-6 compliant

Data Sheet

Feature List

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SW52212 Datasheet(PDF) 2 Page - Silicon Laboratories