SI5335D-B15743-GM

Overview

The SI5335D-B15743-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 200 MHz using MultiSynth fractional divider technology, ensuring 0 ppm frequency synthesis error. The device supports external crystal inputs (25 or 27 MHz) or CMOS reference inputs (10–200 MHz). It features independently configurable outputs supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats with selectable supply voltages of 1.5, 1.8, 2.5, or 3.3 V. The core operates on a single supply of 1.8, 2.5, or 3.3 V within an ambient temperature range of –40 to +85 °C.

Feature Summary

• Four independent output banks capable of generating any frequency up to 200 MHz with 0 ppm synthesis error.
• Supports three independent, pin-selectable device configurations to replace multiple clock generators.
• Flexible input options including external crystals (25/27 MHz), CMOS (10–200 MHz), and differential references.
• Configurable output drivers support LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats.

Applications

• PCI Express Gen 1/2/3/4 common clock generation
• Ethernet switch and router timing
• DSL jitter attenuation
• Processor and FPGA clocking

Procurement Notes

Verify the specific factory configuration associated with the B15743 suffix via the official Skyworks ClockBuilder Pro tool or datasheet ordering section. Confirm that the pre-programmed frequency plan matches the target system requirements, as this is a customized component rather than a generic off-the-shelf part.

Selection Notes

Select this model when a fixed, factory-programmed solution is required for four outputs below 200 MHz. Ensure the input reference source matches the device's supported modes (crystal or CMOS). Verify that the required output voltage levels (1.5V, 1.8V, 2.5V, or 3.3V) are compatible with the load devices.

Part Context

This component belongs to the Si5335 family of highly flexible clock generators. Unlike programmable variants, the -B15743 suffix indicates a specific factory-defined frequency plan and control pin configuration. It serves as a drop-in replacement for multiple discrete oscillators and buffers in systems requiring precise, low-jitter clock distribution.

FAQ

What is the maximum output frequency for the SI5335D variant?

The SI5335D series supports output frequencies up to 200 MHz. Higher frequency variants in the family, such as the SI5335A, support up to 350 MHz.

Can the SI5335D-B15743-GM accept a differential input clock?

No, the 'D' designation in the part number typically indicates a CMOS reference input. Differential inputs are generally supported by other variants in the Si5335 family, but this specific model is configured for CMOS or crystal inputs.

How many independent device configurations does this chip support?

The device supports up to three independent, pin-selectable device configurations, allowing one physical IC to function as three different clock generators based on control pin states.