SI5338A-B05696-GM

Overview

The SI5338A-B05696-GM is a programmable quad clock generator utilizing MultiSynth technology to synthesize any frequency with zero ppm precision. It features four independent output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats. The device operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, with individual output supplies configurable from 1.5 V to 3.3 V. Key electrical parameters include a maximum input frequency of 710 MHz, typical phase jitter of 0.7 ps RMS, and an operating temperature range of -40 °C to +85 °C.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four differential output drivers with true zero ppm accuracy.
• Flexible input reference options including external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential inputs (5–710 MHz).
• Independent output voltage per driver supports 1.5, 1.8, 2.5, or 3.3 V configurations for various signal formats.
• Glitchless frequency adjustments via independent increment/decrement feature in 1 ppm steps.

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 against the manufacturer's current documentation to confirm package type and shipping configuration. Ensure compatibility with I2C/SMBus interface requirements for system integration. Confirm that the selected variant meets the thermal and voltage specifications for the intended operating environment.

Selection Notes

Select this component when low-jitter synthesis (<0.7 ps RMS) and flexible output format support are required. Verify that the desired output frequencies fall within the supported ranges for the chosen signal format (e.g., up to 710 MHz for LVDS/LVPECL). Ensure the design accommodates the 4x4 mm QFN-24 package dimensions and thermal requirements.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces multiple discrete crystal oscillators by providing four independent clock outputs from a single IC. The device is designed for high-performance applications requiring precise frequency synthesis and low jitter across diverse signal standards.

Replacement Considerations

Direct replacements within the Si5338 family may require verification of output frequency limits and jitter specifications. Ensure that any substitute part maintains compatibility with the existing I2C programming interface and pinout configuration.

FAQ

What is the maximum input frequency supported by the SI5338?

The device supports a maximum differential input frequency of 710 MHz.

Can the output drivers operate at different supply voltages?

Yes, each output driver has an independent supply voltage (VDDO) that can be configured to 1.5, 1.8, 2.5, or 3.3 V.

Is glitch-free frequency adjustment supported?

Yes, the device features an independent frequency increment/decrement capability that allows glitchless adjustments in 1 ppm steps.