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ICS557-01 Datasheet(PDF) 1 Page - Integrated Device Technology |
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ICS557-01 Datasheet(HTML) 1 Page - Integrated Device Technology |
1 / 10 page DATASHEET PCI-EXPRESS GEN1 CLOCK SOURCE ICS557-01 IDT® PCI-EXPRESS GEN1 CLOCK SOURCE 1 ICS557-01 REV P 072512 Description The ICS557-01 is a clock chip designed for use in PCI-Express Cards as a clock source. It provides a pair of differential outputs at 100 MHz in a small 8-pin SOIC package. Using IDT’s patented Phase-Locked Loop (PLL) techniques, the device takes a 25 MHz crystal input and produces HCSL (Host Clock Signal Level) differential outputs at 100 MHz clock frequency. LVDS signal levels can also be supported via an alternative termination scheme. Features • Supports PCI-ExpressTM HCSL Outputs 0.7 V current mode differential pair • Supports LVDS Output Levels • Packaged in 8-pin SOIC • RoHS 5 (green) or RoHS 6 (green and lead free) compliant packaging • Operating voltage of 3.3 V • Low power consumption • Input frequency of 25 MHz • Short term jitter 100 ps (peak-to-peak) • Output Enable via pin selection • Industrial temperature range available • For PCIe Gen2 applications, see the 5V41064 • For PCIe Gen3 applications, see the 5V41234 Block Diagram Phase Lock Loop Clock Buffer/ Crystal Oscillator VDD GND X2 25 MHz crystal /clock CLK OE CLK R R(IREF) X1 Crystal Tuning Capacitors |
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