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SI4133-D-GM General Description

DescriptionThe Si4133 is a monolithic integrated circuit that performs both IF and dual band RF synthesis for wireless communications applications. The Si4133 includes three VCOs, loop filters, reference and VCO dividers, and phase detectors. Divider and power down settings are programmable with a three wire serial interface.FEATURES■ Dual-band RF synthesizers •RF1: 900 MHz to 1.8 GHz •RF2: 750 MHz to 1.5 GHz■ IF synthesizer •IF: 62.5 to 1000 MHz■ Integrated VCOs, loop filters, varactors, and resonators■ Minimal (2) number of external components required■ Low phase noise■ Programmable powerdown modes■ 1 µA standby current■ 18 mA typical supply current■ 2.7 to 3.6 V operation■ Packages: 24-pin TSSOP, 28-lead QFN •Lead-free and RoHS compliantApplications■ Dual-band communications■ Digital cellular telephones GSM 850, E-GSM 900, DCS 1800, PCS 1900■ Digital cordless phones■ Analog cordless phones■ Wireless local loop

Key Features

  • Dual-band RF synthesizers
  • RF1: 900 MHz to 1.8 GHz
  • RF2: 750 MHz to 1.5 GHz
  • IF synthesizer
  • IF: 62.5 to 1000 MHz
  • Integrated VCOs, loop filters, varactors, and resonators
  • Minimal (2) number of external components required
  • Low phase noise
  • Programmable powerdown modes
  • 1 µA standby current
  • 18 mA typical supply current
  • 2.7 to 3.6 V operation
  • Packages: 24-pin TSSOP, 28-lead QFN
  • Lead-free and RoHS compliant


Mfr Skyworks Solutions Inc. Series -
Package Tray Product Status Active
DigiKey Programmable Not Verified Type Frequency Synthesizer
PLL Yes Input Crystal
Output Clock Number of Circuits 1
Ratio - Input:Output 1:3 Differential - Input:Output No/No
Frequency - Max 1.8GHz Divider/Multiplier Yes/No
Voltage - Supply 2.7V ~ 3.6V Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount Package / Case 28-VFQFN Exposed Pad
Supplier Device Package 28-QFN (5x5) Base Product Number SI4133
Manufacturer Skyworks Product Category Phase Locked Loops - PLL
RoHS Details Maximum Input Frequency 26 MHz
Minimum Input Frequency 2 MHz Output Frequency Range 526 MHz to 1.72 GHz
Supply Voltage - Max 3.6 V Supply Voltage - Min 2.7 V
Technology Si Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C Mounting Style SMD/SMT
Brand Skyworks Solutions, Inc. Height 0.84 mm
Length 5 mm Moisture Sensitive Yes
Operating Supply Voltage 3 V Product Type PLLs - Phase Locked Loops
Factory Pack Quantity 490 Subcategory Wireless & RF Integrated Circuits
Width 5 mm


Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.

Delivery Time

The delivery time is usually within 2-7 days, depending on the logistics provider and the area of delivery.

The following are the estimated delivery times of some logistics service providers.

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  • Fedex

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  • EMS

  • Registered Air Mail


We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

Checks and other instruments are not supported to pay for orders and customers are required to pay all possible fees, including sales tax,
customs fees, etc.

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  • Paypal

  • Credit Card

  • Western Union

  • Money Gram


Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
  • ESD


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Buying Guide

  • What is the lifespan of SI4133-D-GM?

    The lifespan of SI4133-D-GM depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.

  • Where can I find the full specification of SI4133-D-GM?

    You can find it with PDF Datasheet for SI4133-D-GM on this page. If it is not available, you can contact Avaq at [email protected] to inquire about the Datasheet for this part.

  • How to check the quality of SI4133-D-GM?

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  • Can I purchase samples for testing?

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