SI52147-A01AGM

IC CLK GENERATOR 100MHZ 48QFN

Preliminary Rev. 0.1 12/11 Copyright ? 2011 by Silicon Laboratories Si52147 This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Si52147 PCI-EXPRESS GEN 1, GEN 2, & GEN 3 NINE OUTPUT CLOCK GENERATOR Features Applications Description The Si52147 is a spread-controlled PCIe clock generator that can source nine PCIe clocks simultaneously. The device has six hardware output enable control inputs for enabling the respective differential outputs on the fly while powered on along with the hardware spread control for EMI reduction. Functional Block Diagram ? PCI-Express Gen 1, Gen 2, & Gen 3 compliant ? Low power push-pull type differential output buffers ? Integrated resistors on differential clocks ? Output enable pin for all clocks ? Hardware selectable spread control ? Nine PCI-Express clocks ? 25 MHz crystal input or clock input ? I 2 C support with readback capabilities ? Triangular spread spectrum p

Preliminary Rev. 0.1 12/11 Copyright ? 2011 by Silicon Laboratories Si52147 This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Si52147 PCI-EXPRESS GEN 1, GEN 2, & GEN 3 NINE OUTPUT CLOCK GENERATOR Features Applications Description The Si52147 is a spread-controlled PCIe clock generator that can source nine PCIe clocks simultaneously. The device has six hardware output enable control inputs for enabling the respective differential outputs on the fly while powered on along with the hardware spread control for EMI reduction. Functional Block Diagram ? PCI-Express Gen 1, Gen 2, & Gen 3 compliant ? Low power push-pull type differential output buffers ? Integrated resistors on differential clocks ? Output enable pin for all clocks ? Hardware selectable spread control ? Nine PCI-Express clocks ? 25 MHz crystal input or clock input ? I 2 C support with readback capabilities ? Triangular spread spectrum p