SKY53580-A-GMR

Clock Buffers, Drivers Overview

The SKY53580-A-GMR is a low-power, ultra-low additive jitter differential clock buffer from Skyworks Solutions. It features a 3:1 input multiplexer supporting universal format inputs and provides eight differential outputs across two configurable banks. The device supports LVPECL up to 3.1 GHz, LVDS up to 3 GHz, and HCSL up to 800 MHz. Additive RMS jitter is typically 35 fs at 156.25 MHz (LVPECL). It operates on separate core and output voltages ranging from 1.8 V to 3.3 V, housed in a 40-pin, 6 x 6 mm QFN package.

Clock Buffers, Drivers Feature Summary

• Ultra-low additive RMS phase jitter: 35 fs typical (12 kHz to 20 MHz) at 156.25 MHz LVPECL
• 3:1 input multiplexer with support for LVPECL, LVDS, HCSL, CML, SSTL, HSTL, and crystal inputs
• Eight differential outputs divided into two independent banks with pin-selectable formats (LVPECL, LVDS, HCSL)
• Integrated LDOs provide high PSRR and reduce external component requirements

Clock Buffers, Drivers Applications

• PCI Express reference clock distribution (Gen1 through Gen7 compliant)
• High-speed networking and data center timing architectures
• Industrial and embedded systems requiring precise low-jitter clocks
• Format translation between different clock domains

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix '-GMR' corresponds to the tape-and-reel packaging configuration as defined by Skyworks Solutions. Confirm that the 'A' variant meets the required frequency and voltage specifications for the target design. Ensure compliance with RoHS standards and check for any moisture sensitivity level requirements during storage and handling.

Clock Buffers, Drivers Selection Notes

Select this model when eight differential outputs are required with mixed format capabilities. The SKY53580 fits between the four-output SKY53540 and ten-output SKY3510 in terms of channel count. Ensure the application requires frequencies up to 3.1 GHz for LVPECL or 3 GHz for LVDS. Verify that the 6x6mm QFN footprint is compatible with the PCB layout constraints.

Clock Buffers, Drivers Part Context

This component belongs to the SKY535x0 family of fanout buffers, which also includes the SKY53510 (10 outputs) and SKY53540 (4 outputs). The 'x0' designation indicates differential output variants, distinct from the 'x1' series which offers LVCMOS outputs. The SKY53580 specifically provides an 8-channel solution within this low-power, high-performance buffer lineup.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. For equivalent functionality, consider the SKY53510-A-GMR for higher channel counts or the SKY53540-A-GMR for lower channel counts within the same Skyworks family.