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  • The STMicroelectronics STW81101 is an integrated RF synthesizer with voltage controlled oscillators (VCOs). Showing high performance, high integration, low power, and multi-band performances, STW81101 is a low-cost one-chip alternative to discrete PLL and VCO solutions.

    The STW81101 includes an integer-N frequency synthesizer and two fully integrated VCOs featuring low phase-noise performance and a noise floor of -155 dBc/Hz. The combination of wide frequency range VCOs (using center-frequency calibration over 32 sub-bands) and multiple output options (direct output, divided by 2, or divided by 4) allows coverage of the 825 MHz-1100 MHz, 1650 MHz-2200 MHz and 3300 MHz-4400 MHz bands.
    The STW81101 is designed with STMicroelectronics advanced 0.35 µm SiGe process.

    Key Features

    • Digital Lock Detector
    • Programmable charge pump current
    • 3.3V Power Supply
    • Dual Digital Bus Interface: SPI and I2C bus with 3 bit programmable address (1100A2A1A0)
    • Small size exposed pad VFQFPN28 package 5x5x1.0mm
    • Power down mode (HW and SW)
    • Process: BICMOS 0.35μm SiGe
    • Programmable reference frequency divider (10 bits)
    • 2 programmable counters to achieve a feedback division ratio from 256 to 65551 (prescaler 16/17) and from 361 to 77836 (prescaler 19/20).
    • Integer-N Frequency Synthesizer
    • Excellent integrated phase noise
    • Dual differential integrated VCOs with automatic center frequency calibration:\t\t3300 - 3900 MHz (Direct output)\t\t3800 - 4400 MHz (Direct output)\t\t1650 - 1950 MHz (Internal divider by 2)\t\t1900 - 2200 MHz (Internal divider by 2)\t\t825 - 975 MHz (Internal divider by 4)\t\t950 - 1100 MHz (Internal divider by 4)\t\t
    • Dual modulus programmable prescaler (16/17 or 19/20)
    • Phase frequency comparator and charge pump
    • Fast lock time: 150μs

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STMicroelectronics - STW81101

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STW81101AT
Active
VFQFPN2 28 5x5x1.0 Industrial Ecopack2
STW81101ATR
NRND
VFQFPN2 28 5x5x1.0 Industrial Ecopack2

STW81101AT

Package:

VFQFPN2 28 5x5x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN2 28 5x5x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STW81101ATR

Package:

VFQFPN2 28 5x5x1.0

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

VFQFPN2 28 5x5x1.0

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
STW81101ATR No availability of distributors reported, please contact our sales office
NRND
EAR99 NEC Tape And Reel VFQFPN2 28 5x5x1.0 -40 85 PHILIPPINES
STW81101AT Available at 1 distributors

Distributor availability ofSTW81101AT

Distributor Name
Region Stock Min. Order Third party link
ANGLIA Live EUROPE 1 1 Order Now

Distributor reported inventory date: 2020-11-30

Distributor Name

ANGLIA Live

Stock

1

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-30

Active
EAR99 NEC Tray VFQFPN2 28 5x5x1.0 -40 85 PHILIPPINES

STW81101ATR

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

VFQFPN2 28 5x5x1.0

Operating Temperature (°C)

(min)

-40

(max)

85

Budgetary Price (US$)* / Qty

Country of Origin

PHILIPPINES

STW81101AT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofSTW81101AT

Distributor Name
Region Stock Min. Order Third party link
ANGLIA Live EUROPE 1 1 Order Now

Distributor reported inventory date: 2020-11-30

Distributor Name

ANGLIA Live

Stock

1

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-30

ECCN (EU)

NEC

Packing Type

Tray

Package

VFQFPN2 28 5x5x1.0

Operating Temperature (°C)

(min)

-40

(max)

85

Budgetary Price (US$)* / Qty

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