SI5338A-B05494-GM

Overview

The SI5338A-B05494-GM is a programmable quad clock generator utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The device operates from a 1.8 V, 2.5 V, or 3.3 V core supply with a typical current of 45 mA. It features low phase jitter of 0.7 ps RMS typ, zero ppm frequency accuracy, and flexible input references up to 710 MHz. Packaged in a 4x4 mm QFN-24, it allows independent voltage selection per driver.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four output drivers with 0 ppm precision.
• Supports diverse output formats: LVPECL/LVDS (up to 710 MHz), HCSL (up to 250 MHz), CMOS (up to 200 MHz), and SSTL/HSTL (up to 350 MHz).
• Low phase jitter performance of 0.7 ps RMS typical.
• Flexible input reference options including external crystals (8–30 MHz), CMOS (5–200 MHz), and differential inputs (up to 710 MHz).

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant systems.
• Ethernet switch/router timing.
• Processor and FPGA clocking.
• Broadcast video/audio timing.

Procurement Notes

Verify the specific ordering suffix B05494 against the manufacturer's official documentation to confirm factory-programmed configuration parameters. Confirm package type and RoHS compliance status prior to procurement.

Selection Notes

Select this component for designs requiring independent frequency and format generation across four outputs. Ensure the required output frequencies fall within the specified limits for the chosen signal format (e.g., LVPECL vs. CMOS). Verify that the I2C interface voltage levels are compatible with the system controller.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'A' suffix typically denotes the maximum output frequency capability (up to 710 MHz) within the series. The 'GM' indicates a lead-free, halogen-free QFN-24 package.

Replacement Considerations

Other variants within the Si5338 family may serve as replacements if their frequency ranges and output configurations match the design requirements. Verify pinout compatibility and electrical specifications before substitution.

FAQ

What is the maximum input frequency supported by the SI5338?

The device supports differential input frequencies up to 710 MHz.

Can each output driver operate at a different voltage level?

Yes, each output driver can be independently configured for 1.5 V, 1.8 V, 2.5 V, or 3.3 V supply voltages.

Is the device compliant with PCIe standards?

Yes, it is compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.