SI5335D-B15708-GM

Overview

The SI5335D-B15708-GM is a web-customizable, any-frequency, any-output quad clock generator and buffer manufactured by Skyworks Solutions. It synthesizes four non-integer-related frequencies up to 350 MHz using MultiSynth technology, ensuring 0 ppm frequency synthesis error. The device supports three independent pin-selectable configurations and features flexible input references including external crystals (25/27 MHz), CMOS, SSTL/HSTL, and differential inputs. Outputs are configurable as LVPECL, LVDS, CML, HCSL, CMOS, or SSTL/HSTL with independent voltage levels of 1.5, 1.8, 2.5, or 3.3 V. It operates on a single core supply of 1.8, 2.5, or 3.3 V within an ambient temperature range of –40 to +85 °C.

Feature Summary

• Four output banks supporting any frequency synthesis up to 350 MHz with 0 ppm error
• Three independent, user-assignable, pin-selectable device configurations
• Flexible input reference options: external crystal, CMOS, SSTL/HSTL, or differential
• Configurable output drivers for LVPECL, LVDS, CML, HCSL, CMOS, and SSTL/HSTL formats

Applications

• Ethernet switch/router
• PCI Express Gen 1/2/3/4 systems
• Processor and FPGA clocking
• Telecom line cards
• Fibre Channel and SAN applications

Procurement Notes

Verify the specific factory configuration encoded in the B15708 suffix against system requirements before procurement. Confirm that the pin-selectable control functions match the hardware design constraints. Ensure the 24-QFN package land pattern adheres to the recommended PCB layout guidelines provided in the datasheet to maintain signal integrity and thermal performance.

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single source with zero ppm synthesis error. Choose between the 1.6 MHz or 475 kHz loop bandwidth settings based on jitter attenuation needs for PCIe or DSL applications. Verify that the required output voltage levels (1.5V, 1.8V, 2.5V, or 3.3V) are compatible with the target receivers. Consider the pin-selectable configuration feature if space-saving replacement of multiple fixed-frequency oscillators is necessary.

Part Context

This part belongs to the Si5335 family of highly flexible clock generators. The 'D' variant typically denotes specific electrical characteristics or package options within the series, while the alphanumeric suffix defines the unique factory-programmed frequency plan and pin configuration. It serves as a drop-in replacement for multiple discrete clock generators and buffers in complex digital systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.