LMK03318RHSRL1

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMK03318RHST is an ultra-low-noise clock generator featuring a single fractional-N PLL with integrated VCO, flexible clock distribution, and on-chip EEPROM. It provides eight configurable output pairs supporting AC-LVPECL, AC-LVDS, AC-CML, HCSL, or LVCMOS formats. The device accepts primary and secondary reference inputs ranging from 1 MHz to 300 MHz, or a crystal input between 10 MHz and 52 MHz. Output frequencies reach up to 1 GHz with typical jitter of 100 fs RMS for frequencies above 100 MHz. It operates on a 3.3-V core supply and 1.8-V, 2.5-V, or 3.3-V output supplies within the industrial temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Ultra-low noise performance with high power supply noise immunity
• Flexible output configuration with pin-selectable modes and integrated EEPROM
• Dual reference inputs with automatic or manual selection capabilities
• Glitchless frequency margining options for system verification

Clock Generators, PLLs, Frequency Synthesizers Applications

• Switches and routers
• Network and telecom line cards
• Servers and storage systems
• Wireless base stations
• PCIe Gen1 through Gen4 interfaces

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official orderable addendum to ensure correct package type and tape-and-reel specifications. Confirm that the component meets RoHS compliance requirements for your region. Check for moisture sensitivity level ratings prior to soldering to prevent damage during assembly processes.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this device when ultra-low jitter is critical for high-speed serial links. Ensure the required output voltage levels match the available VDDO supply options. Verify that the reference input frequency falls within the supported ranges for either external clock or crystal inputs. Consider the thermal dissipation requirements based on the number of active outputs and load conditions.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The LMK03318 belongs to the PLLatinum family of clock generators designed for high-performance timing applications. It replaces multiple oscillators and distribution devices to reduce board area and bill of materials cost. The integrated EEPROM allows for self-startup configurations without external programming hardware.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

LMK03328RHSRC3: Features two independent PLLs instead of one, while maintaining similar output configurations and package.