SI53325-B-GQ

Clock Buffers, Drivers Overview

The SI53325-B-GQ is a low-jitter LVPECL fanout clock buffer from the Si5332x family, manufactured by Skyworks Solutions. It features two banks with five LVPECL outputs each and accepts any-format inputs including LVPECL, LVDS, CML, HCSL, and LVCMOS. The device operates over a wide frequency range from DC to 1250 MHz and includes built-in LDOs for high power supply noise rejection. Packaged in a 32-eLQFP (7 x 7 mm) format, it supports independent output enables and dual-bank configurations for redundant clocking applications.

Clock Buffers, Drivers Feature Summary

• Dual-bank architecture providing up to 10 LVPECL outputs
• Universal input stage supporting LVPECL, LVDS, CML, HCSL, and LVCMOS formats
• Built-in LDOs deliver high PSRR performance
• Wide frequency range operation from DC to 1250 MHz

Clock Buffers, Drivers Applications

• Clock and data distribution systems
• Redundant clocking architectures
• Low-jitter clock tree implementation

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and electrical specifications. Ensure compatibility with system voltage requirements of 2.5 V or 3.3 V before procurement.

Clock Buffers, Drivers Selection Notes

Select this component when a dual-bank configuration with independent output control is required. The universal input capability simplifies interfacing with various source clock formats without external level shifting components.

Clock Buffers, Drivers Part Context

This part belongs to the Si53320–28 family of LVPECL fanout buffers. It shares core architectural features with other members like the SI53325-B-GM but differs in its physical package configuration.

Clock Buffers, Drivers Replacement Considerations

The SI53325-B-GM serves as a direct functional substitute within the same family, offering identical electrical characteristics but utilizing a 32-QFN package instead of the eLQFP form factor.

Clock Buffers, Drivers FAQ

What input clock formats are supported?

The device supports any-format inputs, including LVPECL, low-power LVPECL, LVDS, CML, HCSL, and LVCMOS.

How does the device handle power supply noise?

Built-in LDOs provide high power supply noise rejection (PSRR), reducing the need for extensive external filtering components.

What is the maximum operating frequency?

The SI53325-B-GQ supports a frequency range from DC up to 1250 MHz.