Vendor: Weasic Microelectronics Category: PLL

4.4 GHz To 7.75 GHz Low phase Noise Fractional-N Synthesizer

The WEA48S55T is a broadband fractional–N frequency synthesizer with integrated phase sync function.

TSMC 55nm GP Silicon Proven View all specifications

Overview

The WEA48S55T is a broadband fractional–N frequency synthesizer with integrated phase sync function. It uses a reference input ranging from 25 MHz to 150 MHz, which can be doubled with the use of an integrated frequency doubler. The WEA8S55T generates RF signals spanning from 4.4 GHz to 6.4 GHz and from 6.87 GHz to 7.75 GHz for Flavor 1 and Flavor 2, respectively. Flavor 1 comprises three integrated VCOs, while Flavor 2 comprises two integrated VCOs. The synthesizer has the ability to automatically lock into the selected frequency with the aid of an integrated autocalibration algorithm. The WEA48S55T is implemented in the TSMC55 process and is powered by a 1.8 V supply.

Key features

  • Low Phase Noise, Low pin count
  • Reference input: 81.25 MHz to 162.5 MHz
  • Flavor 1 Output frequency range: 4.4 GHz to 6.4 GHz (3 VCOs needed)
  • Flavor 2 Output frequency range: 6.87 GHz to 7.75 GHz (2 VCOs needed)
  • Integrated Phase Jitter: 200 fs rms (from 10 kHz to 250MHz, excluding reference clock noise)
  • VCO Noise floor: -110 dBc/Hz @ 1 MHz offset
  • Banerjee figure of merit: -227 dBc/Hz
  • Programmable Charge Pump
  • Programmable Loop Filter
  • Bank of LC-VCOs with 128 Bands/VCO
  • Automatic VCO/Band Selection System
  • RF, Analog Supply 1.8 V
  • Consumption: 216 mW
  • Area:2.25 mm2 (RX), 2.2 mm2 (TX)

Block Diagram

WEA48S55T block diagram

Applications

  • Phased array antennas and beam forming

Silicon Options

Foundry Node Process Maturity
TSMC 55nm GP Silicon Proven

Specifications

Identity

Part Number
WEA48S55T
Vendor
Weasic Microelectronics
Type
Silicon IP

Files

Product Sheet Download

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

Provider

Frequently asked questions about PLL IP cores

What is 4.4 GHz To 7.75 GHz Low phase Noise Fractional-N Synthesizer?

4.4 GHz To 7.75 GHz Low phase Noise Fractional-N Synthesizer is a PLL IP core from Weasic Microelectronics listed on Semi IP Hub. It is listed with support for tsmc Silicon Proven.

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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