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557MI01L

Renesas
Part Number 557MI01L
Manufacturer Renesas
Description PCI-EXPRESS GEN1 CLOCK SOURCE
Published Jul 9, 2021
Detailed Description PCI-EXPRESS GEN1 CLOCK SOURCE DATASHEET ICS557-01 Description The ICS557-01 is a clock chip designed for use in PCI-Ex...
Datasheet PDF File 557MI01L PDF File

557MI01L
557MI01L

Overview
PCI-EXPRESS GEN1 CLOCK SOURCE DATASHEET ICS557-01 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 VDD X1 25 MHz crystal /clock X2 Clock Buffer/ Crystal Oscillator Phase Lock Loop Crystal Tuning Capacitors GND OE CLK CLK RR(IREF) IDT® PCI-EXPRESS GEN1 CLOCK SOURCE 1 ICS557-01 REV P 072512 ICS557-01 PCI-EXPRESS GEN1 CLOCK SOURCE Pin Assignment OE 1 X1 2 X2 3 GND 4 8 VDD 7 CLK 6 CLK 5 IREF 8 Pin (150 mil) SOIC PCIE Pin Descriptions Pin Number 1 Pin Name OE 2 X1 3 X2 4 GND 5 IREF 6 CLK 7 CLK 8 VDD Pin Type Pin Description Input Output Enable signal (H = outputs are enabled, L = outputs are disabled/tristated).
Internal pull-up resistor.
Input Crystal or clock input.
Connect to a 25 MHz crystal or single ended clock.
XO Crystal Connection.
Connect to a parallel mode crystal.
Leave floating if clock input.
Power Connect to ground.
Output A 475Ω precision resistor connected between this pin and ground establishes the external reference current.
Output HCSL differential complementary clock output.
Output HCSL differential ...


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