SI5338C-B06074-GM

Overview

The SI5338C-B06074-GM is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. It operates from a single core supply of 1.8 V, 2.5 V, or 3.3 V and supports flexible input references including external crystals (8–30 MHz), CMOS (up to 200 MHz), SSTL/HSTL (up to 350 MHz), and differential inputs (up to 710 MHz). The device features low phase jitter of 0.7 ps RMS typical, glitchless frequency adjustments in 1 ppm steps, and independent phase adjustment per driver. It is housed in a compact 4 x 4 mm 24-lead QFN package.

Feature Summary

• MultiSynth™ Technology: Generates four independent clocks with true zero ppm frequency accuracy.
• Flexible Input Support: Accepts external crystals, CMOS, SSTL/HSTL, and differential inputs up to 710 MHz.
• Configurable Outputs: Supports LVPECL, LVDS, HCSL, CMOS, SSTL, HSTL, and CML formats with independent voltage levels (1.5V, 1.8V, 2.5V, 3.3V).
• Glitchless Frequency Adjustment: Enables independent frequency increment/decrement in 1 ppm steps and phase adjustment with <20 ps accuracy.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant timing
• Ethernet switch/router clocking
• Broadcast video/audio timing systems
• Processor and FPGA clock generation
• Telecom line cards and MSAN/DSLAM/PON applications

Procurement Notes

Verify the specific ordering suffix 'B06074' against the manufacturer's current datasheet to confirm the exact pre-programmed configuration, as this suffix denotes the factory-set register values for frequency and format. Ensure compatibility with I2C/SMBus programming interfaces if field reconfiguration via ClockBuilder Pro software is required after initial deployment.

Selection Notes

Select this component when replacing multiple discrete oscillators with a single programmable source. Confirm that the required output frequencies fall within the supported ranges for the chosen signal format (e.g., LVDS up to 710 MHz, CMOS up to 200 MHz). Verify that the system power budget accommodates the typical 45 mA core supply current and that the 4x4 mm QFN package fits the PCB land pattern constraints.

Part Context

The SI5338C-B06074-GM belongs to the Si5338 family of I2C-programmable clock generators. The 'C' indicates the commercial temperature range (-40°C to +85°C), while 'GMR' signifies tape-and-reel packaging. This specific part number represents a factory-configured variant, distinct from blank devices that require user programming.

Replacement Considerations

Direct pin-to-pin replacements within the same package include other Si5338 variants such as SI5338Q-B-GMR or SI5338F-B-GMR, provided the pre-programmed frequency settings match the application requirements. Verify thermal resistance characteristics remain consistent when substituting between different temperature grades or packaging options.