SI5338B-B04162-GMR

Overview

The SI5338B-B04162-GMR is an I2C-programmable quad clock generator from Skyworks Solutions. It utilizes MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. 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 are configurable for LVPECL/LVDS (up to 710 MHz), HCSL (up to 250 MHz), CMOS (up to 200 MHz), or SSTL/HSTL (up to 350 MHz). Each driver supports independent supply voltages of 1.5, 1.8, 2.5, or 3.3 V. Key electrical parameters include a typical core supply current of 45 mA, operating voltage range of 1.71–3.63 V, and phase jitter as low as 0.7 ps RMS.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with true zero ppm accuracy.
• Low phase jitter performance of 0.7 ps RMS typ, compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.
• Highly-configurable outputs support up to four differential or eight single-ended clocks with independent voltage levels (1.5V–3.3V) and formats.
• Flexible input reference options including external crystal, CMOS, SSTL/HSTL, and differential signals.

Applications

• PCIe Gen1/2/3/4 timing
• Ethernet switch/router clocking
• Processor and FPGA clocking
• Broadcast video/audio timing
• Telecom line cards

Procurement Notes

Verify the specific factory programming configuration associated with the B04162 suffix, as this part number represents a custom NVM programmed variant. Confirm that the required output frequencies and signal formats align with the device's capabilities before procurement. Ensure compatibility with the I2C/SMBus interface for system integration.

Selection Notes

Select this component when designing systems requiring multiple independent clock frequencies from a single source. The SI5338B variant allows for glitchless frequency adjustments in 1 ppm steps and independent phase adjustment with <20 ps accuracy. Consider the 4x4 mm QFN package constraints and ensure adequate thermal management given the 45 mA typical core current.

Part Context

This device belongs to the Si5338 family of I2C-programmable clock generators. The 'B' in the part number typically denotes a specific frequency/output configuration programmed into the internal Non-Volatile Memory (NVM). The 'GMR' suffix indicates the RoHS-compliant tape and reel packaging format suitable for automated surface-mount assembly.

Replacement Considerations

Direct replacements within the same family include other Si5338 variants with different NVM configurations (e.g., SI5338A, SI5338C series). Ensure the substitute part supports the same maximum output frequencies and signal formats required by the design.