LMK5C33414ARGCRS1

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMK5C33414ARGCRS1 is a network synchronizer and jitter cleaner featuring three Digital Phase Locked Loops (DPLLs) paired with three Analog Phase Locked Loops (APLLs). It provides four reference inputs and fourteen differential outputs, supporting frequencies from 1Hz to 1250MHz. The device integrates an ultra-low jitter Bulk Acoustic Wave (BAW) VCO-based APLL3, delivering 40fs typical RMS jitter at 491.52MHz. It includes IEEE-1588 PTP stack software support, programmable loop bandwidth from 1mHz to 4kHz, and hitless switching capabilities. The component operates within a -40°C to 85°C temperature range and utilizes a 64-pin VQFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates three DPLLs and three APLLs for flexible synchronization domains and hitless switching
• Features a BAW-based APLL3 for ultra-low jitter wireless clock generation
• Supports multiple output formats including HSDS, AC-LVPECL, LVDS, and HSCL
• Includes integrated EEPROM for system start-up customization and factory default ROM profiles

Clock Generators, PLLs, Frequency Synthesizers Applications

• 4G and 5G Wireless Networks including Active Antenna Systems and Remote Radio Units
• SyncE, SONET/SDH, and IEEE-1588 PTP secondary clock applications
• Jitter cleaning and reference clock generation for high-speed SerDes
• Optical Transport Networks and broadband fixed line access infrastructure

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix RS1 confirms inclusion of the IEEE-1588 PTP stack software bundle. Confirm the RGC package designation matches the required 64-pin VQFN form factor. Ensure compatibility with I2C or SPI control interfaces during integration planning. Check for any recent product change notifications regarding availability or pinout modifications before finalizing procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when four independent reference inputs are required alongside fourteen synchronized outputs. Choose the RS1 variant specifically if embedded PTP protocol handling is necessary without external processing overhead. Evaluate the BAW APLL3 performance against standard LC VCO options based on strict jitter attenuation requirements. Consider the programmable loop bandwidth flexibility for diverse network synchronization standards.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the LMK5CxxxxxS1 family of network synchronizers designed for demanding telecommunications infrastructure. It serves as a central timing hub, replacing discrete synthesizer solutions by integrating multiple PLL domains into a single chip. The S1 suffix distinguishes it from non-software versions by providing built-in protocol support for precise time synchronization across distributed systems.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

LMK5C33414AS1: Identical hardware functionality but lacks the bundled IEEE-1588 PTP stack software included in the RS1 variant.