SI5338A-B01604-GMR

Overview

The SI5338A-B01604-GMR is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent clocks with zero ppm precision via an I2C interface. The device supports flexible input references, including external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential inputs (5–710 MHz). Outputs support LVPECL/LVDS up to 710 MHz, HCSL up to 250 MHz, CMOS up to 200 MHz, and SSTL/HSTL up to 350 MHz. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V within a 4x4 mm QFN-24 package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with 0 ppm accuracy.
• Low phase jitter performance of 0.7 ps RMS typical.
• Flexible input reference options: External crystal, CMOS, SSTL/HSTL, and differential signals.
• Highly configurable outputs supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS
• Ethernet switch/router and 1 GbE/10 GbE interfaces
• Processor and FPGA clocking
• Broadcast video/audio timing

Procurement Notes

Verify the specific ordering suffix B01604 against the manufacturer's current documentation to confirm factory programming parameters. Confirm the package type matches the required PCB land pattern for the 24-QFN form factor. Ensure I2C pull-up voltages align with the selected bus voltage standard.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single source. Verify that the target output frequency falls within the supported range for the chosen signal format (e.g., LVDS up to 710 MHz vs. CMOS up to 200 MHz). Check power supply requirements against the available system rails (1.8 V, 2.5 V, or 3.3 V).

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'B' suffix typically denotes a specific factory-programmed configuration variant within the series. The 'GMR' suffix indicates tape-and-reel packaging suitable for automated surface-mount assembly.

Replacement Considerations

Direct replacements must match the 24-QFN package and I2C interface. Verify pin compatibility and electrical specifications, particularly maximum output frequencies and jitter performance, as different suffixes in the Si5338 family may have distinct frequency limits or output driver capabilities.