Vendor: Weasic Microelectronics Category: PLL

7 GHz to 28 GHz Low phase Noise Fractional-N Synthesizer

The WEA728S45G is a two-octave microwave fractional-N frequency synthesizer with integrated phase sync function, suitable for app…

Overview

The WEA728S45G is a two-octave microwave fractional-N frequency synthesizer with integrated phase sync function, suitable for applications where phase coherency is required, such as phased array systems.

It uses a reference input ranging from 25 MHz to 300 MHz, either generated with a Crystal and  the integrated Crystal Oscillator or provided from an LVDS driver.

The WEA728S45G generates RF signals spanning from a frequency of 7 GHz up to 28 GHz using a bank of four integrated VCOs a RF frequency doubler.

The synthesizer integrates automatic VCO and VCO-Band selection system.

The WEA728S45G is powered by 1.8 V supply.

It is implemented in the GlobalFoundries 45RFSOI process.

Key features

  • Low Phase Noise
  • Low pin count
  • Reference input: 25 MHz to 300 MHz
  • Output frequency range: 7 GHz to 28 GHz with the use of RF Frequency Doubler
  • Integrated RMS jitter:101.7 fs @ 7GHz output
  • PLL Noise floor: -108.5 dBc/Hz @ 100 KHz offset @ 7 GHz
  • Banerjee figure of merit: -222 dBc/Hz
  • 2nd harmonic: -42 dBc
  • 3rd harmonic: -26 dBc
  • Lock time: <5 us
  • Programmable Charge Pump
  • Programmable order MASH, 16 -24 Bit MASH
  • Programmable Loop Filter
  • Bank of LC-VCOs with 128 Bands/VCO
  • Automatic VCO/Band Selection System
  • RF, Analog Supply 1.8 V
  • Consumption: 360mW
  • Area:1600 mm * 1600 mm

Block Diagram

Applications

  • 5G Infrastructure, VSAT

Specifications

Identity

Part Number
WEA728S45G
Vendor
Weasic Microelectronics
Type
Silicon IP

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Provider

Frequently asked questions about PLL IP cores

What is 7 GHz to 28 GHz Low phase Noise Fractional-N Synthesizer?

7 GHz to 28 GHz Low phase Noise Fractional-N Synthesizer is a PLL IP core from Weasic Microelectronics 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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