SKY53580-A-GM

Clock Buffers, Drivers Overview

The SKY53580-A-GM is a low-power, ultra-low additive jitter differential clock buffer from Skyworks Solutions. It operates from DC to 3.1 GHz and features a 3:1 input multiplexer supporting LVPECL, LVDS, S-LVDS, HCSL, CML, SSTL, HSTL, and crystal inputs. The device provides eight differential outputs across two banks, each independently configurable for LVPECL, LVDS, or HCSL formats with selectable supply voltages of 1.8 V, 2.5 V, or 3.3 V. Additive RMS jitter is typically 35 fs at 156.25 MHz (LVPECL). It includes integrated LDOs for high PSRR and an LVCMOS reference output.

Clock Buffers, Drivers Feature Summary

• Ultra-low additive jitter: 35 fs RMS typical at 156.25 MHz (12 kHz to 20 MHz)
• Frequency range: DC to 3.1 GHz for LVPECL/LVDS; DC to 800 MHz for HCSL
• Eight differential outputs in two banks with pin-selectable formats (LVPECL, LVDS, HCSL)
• 3:1 input multiplexer with universal format support and crystal oscillator interface

Clock Buffers, Drivers Applications

• PCI Express Gen1 through Gen7 reference clock distribution
• High-speed networking and data center timing architectures
• Industrial and embedded systems requiring precise clock synchronization

Clock Buffers, Drivers Procurement Notes

Verify the datasheet revision date and package marking against the specific manufacturing lot. Confirm that the -A suffix denotes the standard commercial temperature grade (-40°C to +95°C) as specified in the official documentation. Ensure compatibility with the required output voltage levels for the target application design.

Clock Buffers, Drivers Selection Notes

Select this model when eight differential outputs are required within a compact 6x6 mm QFN footprint. Choose between SKY53580 (differential outputs) and SKY53581 (LVCMOS outputs) based on the destination logic interface requirements. Verify that the input clock source matches one of the supported universal formats or crystal specifications.

Clock Buffers, Drivers Part Context

This component belongs to the SKY535x0/x1 family of fanout buffers, designed for high-frequency, low-jitter clock distribution. It complements Skyworks' NetSync network synchronizers and jitter attenuators to create complete clock tree solutions. The SKY53580 specifically offers a balance of output count and package size compared to the 10-output SKY53510 and 4-output SKY53540 variants.

Clock Buffers, Drivers Replacement Considerations

SKY53510-A-GM (10 outputs, 48-pin QFN), SKY53540-A-GM (4 outputs, 32-pin QFN), SKY53581-A-GM (8 LVCMOS outputs, 40-pin QFN).