STW81200

Active

Wide Band Frac-Integer-N Integrated Synthesizer

Download datasheet

Order from our eStore and our distributors

Buy now
Overview
Resources
Tools & Software
Solutions
eDesignSuite
Quality & Reliability
Sales Briefcase
Get Started
Sample & Buy
Partner products
  • The STW81200 is a dual architecture frequency synthesizer (Fractional-N and Integer-N), that features three low phase-noise VCOs with a fundamental frequency range of 3.0 GHz to 6.0 GHz and a programmable dual RF output divider stage which allows coverage from 46.875 MHz to 6 GHz.

    The STW81200 optimizes size and cost of the final application thanks to the integration of low- noise LDO voltage regulators and internally-matched broadband RF outputs.
    The STW81200 is compatible with a wide range of supply voltages (from 3.0 V to 5.4 V) providing to the end user a very high level of flexibility which trades off excellent performance with power dissipation requirements. A low-power functional mode (software controlled) gives an extra power saving.
    Additional features include crystal oscillator core, external VCO mode and output-mute function.

    Key Features

    • Output frequency range: 46.875 to 6000 MHz
    • Very low noise
      • Normalized in band phase noise floor: -227 dBc/Hz
      • VCO phase noise: -135 dBc/Hz @ 1 MHz offset, 4.0 GHz carrier
      • Noise floor: -160 dBc/Hz
    • Dual architecture frequency synthesizer: Fractional-N and Integer-N
    • Integrated VCOs with automatic center frequency calibration
    • Programmable RF output dividers by 1/2/4/8/16/32/64
    • Dual RF Output broadband matched with programmable power level and mute function
    • External VCO option with 5 V charge pump
    • Integrated low noise LDO voltage regulators
    • Maximum phase detector frequency: 100 MHz
    • Exact frequency mode
    • Fast lock and cycle slip reduction
    • Differential reference clock input (LVDS and LVECPL compliant) supporting up to 800 MHz
    • 13-bit programmable reference frequency divider
    • Programmable charge pump current
    • Digital lock detector
    • Integrated reference crystal oscillator core
    • R/W SPI interface
    • Logic compatibility/tolerance 1.8 V/3.3 V
    • Low power functional mode
    • Supply voltage: 3.0 V to 5.4 V
    • Small size exposed pad VFQFPN36 package 6 x 6 x 1.0 mm
    • Process: BICMOS 0.25 μm SiGe

Circuit Diagram

Sample & Buy

Part Number
Package
Packing Type
Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
Order from ST
Order from Distributors
STW81200T VFQFPN 36 6x6x1-0 Tray
Active
EAR99 PHILIPPINES Check Availability

Distributor availability ofSTW81200T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2666 1 Order Now
ARROW AMERICA 1766 2940 Order Now

Distributor reported inventory date: 2020-05-21

Distributor Name

DIGIKEY

Stock

2666

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1766

Min.Order

2940

Region

AMERICA Order Now

Distributor reported inventory date: 2020-05-21

STW81200TR VFQFPN 36 6x6x1-0 Tape And Reel
Active
EAR99 PHILIPPINES Buy now Check Availability

Distributor availability ofSTW81200TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1751 1 Order Now
COMPEL EUROPE 208 1 Order Now
ARROW EUROPE 1562 0 Order Now
MOUSER WORLDWIDE 130 1 Order Now
ANGLIA Live EUROPE 12 1 Order Now

Distributor reported inventory date: 2020-05-21

Distributor Name

DIGIKEY

Stock

1751

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

208

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

1562

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

130

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

12

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-05-21

STW81200T

Package

VFQFPN 36 6x6x1-0

Packing Type

Tray

Budgetary Price (US$)*/Qty

Distributor availability ofSTW81200T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2666 1 Order Now
ARROW AMERICA 1766 2940 Order Now

Distributor reported inventory date: 2020-05-21

Distributor Name

DIGIKEY

Stock

2666

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1766

Min.Order

2940

Region

AMERICA Order Now

Distributor reported inventory date: 2020-05-21

Marketing Status

Active

Budgetary Price (US$)* / Qty

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

STW81200TR

Package

VFQFPN 36 6x6x1-0

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

Distributor availability ofSTW81200TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1751 1 Order Now
COMPEL EUROPE 208 1 Order Now
ARROW EUROPE 1562 0 Order Now
MOUSER WORLDWIDE 130 1 Order Now
ANGLIA Live EUROPE 12 1 Order Now

Distributor reported inventory date: 2020-05-21

Distributor Name

DIGIKEY

Stock

1751

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

208

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

1562

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

130

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

12

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-05-21

Marketing Status

Active

Budgetary Price (US$)* / Qty

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Recommended for you

Development Tools

    • Part Number

      STWPLLSim simulation tool for STW81200 & STuW81300

Embedded Software

    • Part Number

      GUI for STW81200 evaluation board

Evaluation Tools

    • Part Number

      Evaluation Kit of STW81200

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS10185
      Wideband RF PLL fractional/integer frequency synthesizer with integrated VCOs and LDOs
      8.0
      2.75 MB
      PDF
      DS10185

      Wideband RF PLL fractional/integer frequency synthesizer with integrated VCOs and LDOs

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STW81200T
Active
VFQFPN 36 6x6x1-0 Industrial Ecopack2
STW81200TR
Active
VFQFPN 36 6x6x1-0 Industrial Ecopack2

STW81200T

Package:

VFQFPN 36 6x6x1-0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 36 6x6x1-0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STW81200TR

Package:

VFQFPN 36 6x6x1-0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 36 6x6x1-0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.