Vendor: NTLab Category: PLL

PLL CMOS phase-frequency detector with CMOS charge pump

Phase-frequency detector (PFD) forms control signal for VCO tuning.

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Overview

Phase-frequency detector (PFD) forms control signal for VCO tuning. PFD compares phases of divided VCO signal and divided reference oscillator signal and detects phase difference. Charge pump generates pulses for loop filter. The CP output stage is an amplifier equalizing a buffer reference voltage of CP output current adjustment with a loop filter voltage; and an amplifier minimizing the disbalance of the charging/discharge current in loop filter capacitors.
Reference frequency 24.84 MHz.
The block is fabricated on iHP SiGe BiCMOS 0.25 um (SGB25V) technology.

Key features

  • iHP SGB25V
  • Input signals with low amplitude
  • Low disbalance of output current
  • Minimum disbalance of the charging/discharge current in loop filter capacitors
  • Portable to other technologies (upon request)

Block Diagram

250iHP_PFD_04 block diagram

Applications

  • Phase-locked loop synthesizer

What’s Included?

  • Schematic or NetList
  • Abstract model (.lef and .lib files)
  • Layout view (optional)
  • Behavioral model (Verilog)
  • Extracted view (optional)
  • GDSII
  • DRC, LVS, antenna report
  • Test bench with saved configurations (optional)
  • Documentation

Specifications

Identity

Part Number
250iHP_PFD_04
Vendor
NTLab
Type
Silicon IP

Files

Product Sheet Download

Note: some files may require an NDA depending on provider policy.

Provider

NTLab
HQ: Lithuania
Contact NTLab

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Frequently asked questions about PLL IP cores

What is PLL CMOS phase-frequency detector with CMOS charge pump?

PLL CMOS phase-frequency detector with CMOS charge pump is a PLL IP core from NTLab listed on Semi IP Hub.

How should engineers evaluate this PLL?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this PLL IP.

Can this semiconductor IP be compared with similar products?

Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.

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