Si53212/Si53208/Si53204 Data Sheet 12/8/4-Output PCI-Express Low Jitter, Low Power Gen 1/2/3/4/5 KEY FEATURES Clock Buffer 12/8/4-output 100 MHz PCIe Gen1/2/3/4/5- The Si53212, Si53208, and Si53204 are the industrys highest performance, low additive compliant clock fanout buffer jitter, low power PCIe clock fanout buffer family that can source 12, 8, or 4 clock outputs. Low additive jitter: 0.02 ps rms max, Gen 5 All differential clock outputs are compliant to PCIe Gen1/2/3/4/5 common clock and sep- Low-power, push-pull, HCSL compatible arate reference clock specifications. This family of buffers is spread spectrum tolerant differential outputs to pass through a spread input clock. Each device has an individual hardware output 10 MHz to 200 MHz clock input enable control pin for enabling and disabling each differential output. The device can 2 also support input frequencies from 10 MHz to 200 MHz. All the devices are packaged Individual hardware control pins and I C in small QFN packages. The small footprint and low-power consumption make this controls for Output Enable family of PCIe clock fanout buffers ideal for industrial and consumer applications. To Spread spectrum tolerant to pass through confirm PCI-Express compliance, the Skyworks PCIe Clock Jitter Tool makes measuring a spread input clock for EMI reduction PCIe clock jitter quick and easy. Download it for free at Si53212/Si53208/Si53204 Data Sheet Feature List 1. Feature List 12/8/4-output 100 MHz PCIe Gen1/2/3/4/5 and SRIS compliant clock fanout buffer Low-power, push-pull, HCSL compatible differential outputs from 10 MHz to 200 MHz clock input Low additive jitter of 0.02 ps rms max to meet PCIe Gen 5 specifications Individual hardware control pins and I2C for Output Enable to easily disable unused outputs for power savings Spread spectrum tolerant to pass through a spread input clock for EMI reduction Supports Intel QPI/UPI jitter requirements with margin Internal 100 or 85 output impedance matching Eliminates external termination resistors to reduce board space Adjustable slew rate to improve signal quality for different applications and board designs Single 1.51.8 V power supply Temperature range: 40C to 85C Package options: 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 Pb-free, RoHS-6 compliant Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 Rev. 1.0 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice December 2, 2021 2