SI5338C-B06043-GMR

Overview

The SI5338C-B06043-GMR is an I2C-programmable quad clock generator from Skyworks Solutions. It utilizes MultiSynth technology to synthesize any frequency on four independent outputs with zero ppm precision. The device supports a wide range of input references, including differential clocks up to 710 MHz and single-ended CMOS inputs up to 200 MHz. Outputs are configurable for LVPECL, LVDS, HCSL, CML, SSTL, HSTL, or CMOS formats, operating at supply voltages of 1.5, 1.8, 2.5, or 3.3 V per driver. Key electrical parameters include a typical core supply current of 45 mA, a maximum output frequency of 710 MHz, and a typical phase jitter of 0.7 ps RMS.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four differential output drivers with true zero ppm accuracy.
• Supports flexible input references: external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential inputs (5–710 MHz).
• Configurable output drivers support LVPECL/LVDS (up to 710 MHz), HCSL (up to 250 MHz), CMOS (up to 200 MHz), and SSTL/HSTL (up to 350 MHz).
• Features independent frequency increment/decrement for glitchless adjustments in 1 ppm steps and independent phase adjustment with <20 ps resolution.

Applications

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

Procurement Notes

Verify the specific ordering suffix B06043 against the manufacturer's latest documentation to confirm the exact pre-configured frequency plan and output format. As this is a programmable device, the suffix defines the factory-loaded NVM content rather than changing the fundamental component type. Ensure compatibility with the I2C/SMBus interface voltage levels used in the target system design.

Selection Notes

Select this component when low-jitter (<0.7 ps RMS) and high-precision (0 ppm) frequency synthesis are required across multiple domains. It replaces discrete crystal oscillators by supporting any frequency on each output. Consider the QFN-24 package size and the need for I2C programming tools like ClockBuilder Pro during the design phase. Verify that the required output voltage levels (1.5V to 3.3V) match the load requirements.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'C' in the model number typically denotes a specific output configuration variant within the series, while the 'B06043' suffix indicates a unique factory-programmed frequency set stored in the non-volatile memory. The '-GMR' suffix indicates the tape-and-reel packaging format suitable for automated surface-mount assembly.

Replacement Considerations

Direct pin-to-pin replacements within the same family may include other Si5338 variants with different output configurations (e.g., Si5338A, Si5338B, Si5338J). However, because the B06043 suffix specifies a custom frequency plan, a generic replacement will require reprogramming via ClockBuilder Pro software to achieve identical performance characteristics.