Ultra-Low Phase Noise Delta Sigma Fractional-N LC PLL

Overview

Fractional-N delta sigma LC based frequency synthesizer intended for RF LO synthesis or high performance clock generation applications.

Key Features

  • Fully integrated 8.25GHz CMOS LC PLL (5.28GHz version also available)
  • 10MHz - 40MHz input range
  • 7GHz -- 8.25GHz output frequency range
  • widepy programmable output divider allows outputs at any frequency from 117MHz to >1GHz
  • 24 bit fractional resolution
  • 3rd order noise shaping eliminates fractional spurs
  • Long Term Jitter <150fs RMS (integrated 1MHz -- 1GHz)
  • Reference spur better than -54dBc @ 8.25GHz

Benefits

  • #NAME?

Deliverables

  • GDSII
  • CDL Netlist (MG Calibre Compatible)
  • Functional Verilog Model
  • Liberty timing module (.lib)
  • LEF
  • Application Note

Technical Specifications

Foundry, Node
TSMC 28HPM, HPC, HPC+
Maturity
Pre-silicon
Availability
Available Now
TSMC
In Production: 28nm HPCP , 28nm HPM
Pre-Silicon: 28nm HP
Silicon Proven: 28nm , 28nm HP , 28nm HPC , 28nm HPCP , 28nm HPL , 28nm HPM , 28nm LP
UMC
Silicon Proven: 28nm HPC
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Semiconductor IP