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CY24292LFXIT Datasheet(PDF) 1 Page - Cypress Semiconductor |
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CY24292LFXIT Datasheet(HTML) 1 Page - Cypress Semiconductor |
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1 / 20 page  CY24292 Four Outputs PCI-Express Clock Generator Cypress Semiconductor Corporation • 198 Champion Court • San Jose , CA 95134-1709 • 408-943-2600 Document Number: 001-46142 Rev. *G Revised June 27, 2017 Four Outputs PCI-Express Clock Generator Features ■ 25 MHz Crystal or Clock Input ■ Four Differential 100 MHz PCI-Express Clocks ■ Supports HCSL Compatible Output Levels ■ One Single-ended 25 MHz Output ■ Spread Spectrum Capability on all 100 MHz PCI-Express Clock Outputs ■ SMBus Interface with Read Back Capability ■ 32-pin QFN Package ■ Operating Voltage 3.3 V ■ Commercial and Industrial Operating Temperature Range Functional Description CY24292 is a clock generator device intended for PCI-Express applications. The device includes: four 100 MHz differential clocks with HCSL Compatible outputs for PCI-Express, and one single-ended 25 MHz output. Using a serially programmable SMBus interface, the CY24292 incorporates spread spectrum modulation on all four 100 MHz outputs. The device incorporates a Lexmark Spread Spectrum profile for maximum electromagnetic interference (EMI) reduction. The spread feature or individual outputs can also be disabled using the SMBus interface. For a complete list of related documentation, click here. Logic Block Diagram (100 MHz) (100 MHz) (100 MHz) (100 MHz) Clock Buffer/ Crystal Oscillator PCIE0N 25M SCLK SDATA PD_RESET# VDD = 475 Ohms 1% GND PLL Clock Synthesizer, Dividers, Buffers and Configuration Logic R REF XIN/EXCLKIN XOUT (25 MHz) PCIE0P PCIE3P PCIE2P PCIE1P PCIE3N PCIE2N PCIE1N (25 MHz) REF I |
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