SI5338C-B05692-GM

Overview

The SI5338C-B05692-GM is a factory-programmable, I2C-controlled quad clock generator utilizing MultiSynth technology. It synthesizes four independent output clocks with zero ppm frequency accuracy from a single supply core (1.8 V, 2.5 V, or 3.3 V). The device supports flexible input references including external crystals (8–30 MHz), CMOS (up to 200 MHz), and differential inputs (up to 710 MHz). Outputs are configurable for LVPECL, LVDS, HCSL, CMOS, SSTL, or HSTL formats, with individual driver voltages selectable at 1.5 V, 1.8 V, 2.5 V, or 3.3 V. It features low phase jitter of 0.7 ps RMS typical, spread spectrum capability, and operates within a –40 °C to +85 °C temperature range in a 24-lead QFN package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with true zero ppm precision.
• Flexible input support: External crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential (5–710 MHz).
• Configurable output drivers supporting LVPECL/LVDS/CML up to 710 MHz, HCSL up to 250 MHz, and CMOS/SSTL/HSTL up to 350 MHz.
• Independent output voltage selection per driver (1.5 V, 1.8 V, 2.5 V, or 3.3 V) and glitchless frequency adjustments in 1 ppm steps.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant systems
• Ethernet switch/router and 1 GbE/10 GbE interfaces
• Processor and FPGA clocking
• Broadcast video/audio timing
• Telecom line cards and Fibre Channel/SAN

Procurement Notes

Verify the specific factory-programmed configuration associated with the B05692 suffix against the target design requirements. As this is a custom NVM part, standard generic Si5338 devices cannot replace it without reprogramming. Confirm that the required output frequencies, formats, and input reference specifications match the programmed parameters exactly.

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single IC to reduce board space compared to discrete oscillators. Ensure the input source matches the supported ranges (crystal, CMOS, or differential). Verify that the required output signal formats (LVPECL, LVDS, etc.) and voltage levels are compatible with the destination receivers. Check thermal dissipation requirements given the 45 mA typical core current.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'C' indicates a specific performance grade or variant within the series, while 'B05692' denotes a unique factory-programmed configuration stored in non-volatile memory. The '-GM' suffix specifies the tape-and-reel packaging format and lead-free composition. It replaces multiple fixed-frequency crystal oscillators in complex digital systems.

Replacement Considerations

Direct replacement requires another Si5338 unit programmed with the identical B05692 configuration. Generic Si5338 parts must be reprogrammed using ClockBuilder Pro software to match the original frequencies and settings. No other manufacturer offers an equivalent pin-compatible, functionally identical quad clock generator with this specific MultiSynth architecture.