RF Synthesizers

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Si413x RF Synthesizers Block Diagram

​The Si413x RF Synthesizers perform IF and dual-band, low-noise RF frequency synthesis for wireless personal communications applications.

The Si413x ICs address the price-sensitive, low-power, high-performance requirements for personal wireless communications by substantially reducing external passive component count, eliminating external VCOs and varactor diodes, improving power efficiency and isolating, in silicon, unwanted external interference. The stable, low-phase noise characteristics are achieved through a proprietary self-tuning architecture that does not require external adjustments or laser trimming for component-tolerance matching.

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Features

  • Dual RF and single IF frequency synthesizer
  • RF1 VCO range 900 to 1800 MHz
  • RF2 VCO range 750 to 1500 MHz
  • IF output range 62.5 to 1000 MHz
  • Dual synthesizer and single synthesizer derivatives available
  • Fully integrated VCOs
  • Programmable loop filters
 

Applications

  • Dual-band wireless communications
  • Digital cellular telephones
  • Dual-band ISM terminals, digital cordless phones, wireless consumer products, wireless industrial applications
  • Wireless data communications
  • SMR applications

Documentation    Expand All   Collapse All

 
 Get notified when these documents are updated.

Data Sheet (2)

Document NameDescriptionVersionLast Updated
si4133.pdf
Si4133 Data Sheet1.611/18/2010
si4136.pdf
Si4136/26 Data Sheet1.411/18/2010

User Guides (1)

Document NameDescriptionVersionLast Updated
si4133-33gevb.pdf
Si4133/33G-EVB User's Guide0.611/21/2011

Application Notes (3)

Document NameDescriptionVersionLast Updated
an31.pdf
AN31: Inductor Design For the Si41XX Synthesizer Family1.3
an41.pdf
AN41: Extended Frequency Operation of RF Synthesizers0.1
AN593.pdf
AN593: Temperature Sensor Usage and Frequency Calibration for the Si4x3x0.13/24/2011

Miscellaneous (1)

Document NameDescriptionVersionLast Updated
Si41xxFAQ.pdf
Si41xx RF Synthesizer FAQ1.1

PCN (1)

Document NameDescriptionVersionLast Updated
1104011-Cancelled-ASEKR Die Bond Adhesive – Japan Earthquake and Tsunami Disaster Recovery.pdf
Cancelled-ASEKR Die Bond Adhesive – Japan Earthquake and Tsunami Disaster Recovery

Design Tools    Expand All   Collapse All

 
 Get notified when these files are updated.

Software (11)

Document NameDescriptionVersionUpdated
si4112.zip
Si4112 Evaluation Software
si4113.zip
Si4113 Evaluation Software
si4122.zip
Si4122 Evaluation Software
si4123.zip
Si4123 Evaluation Software
si4133.zip
Si4133 Evaluation Software
si4133hf.zip
Si4133HF Evaluation Software
si4133hf1.zip
Si4133HF1 Evaluation Software
si4133hf2.zip
Si4133HF2 Evaluation Software
si4133w.zip
Si4133W Evaluation Software
si4135.zip
Si4135 Evaluation Software
si4136.zip
Si4136 Evaluation Software

Product Matrix


Part Number Available DocumentsPackageTemperature RangeDescription
Si4112-D-GMSample
Buy
28-pin QFN-40 to 85 °CIF OUT
Si4112-D-GTSample
Buy
24-pin TSSOP-40 to 85 °CIF OUT
Si4113-D-GMSample
Buy
28-pin QFN-40 to 85 °CRF1/RF2 OUT
Si4113-D-GTSample
Buy
24-pin TSSOP-40 to 85 °CRF1/RF2 OUT
Si4122-D-GMSample
Buy
28-pin QFN-40 to 85 °CRF2/IF OUT
Si4122-D-GTSample
Buy
24-pin TSSOP-40 to 85 °CRF2/IF OUT
Si4123-D-GMSample
Buy
28-pin QFN-40 to 85 °CRF1/IF OUT
Si4123-D-GTSample
Buy
24-pin TSSOP-40 to 85 °CRF1/IF OUT
Si4126-F-GMSample
Buy
28-pin QFN-40 to 85 °C2.3 GHz/IF OUT
Si4133-D-GMSample
Buy
Data Sheet
28-pin QFN-40 to 85 °CRF1/RF2/IF OUT
Si4133-D-GTSample
Buy
Data Sheet
24-pin TSSOP-40 to 85 °CRF1/RF2/IF OUT
Si4136-F-GMSample
Buy
Data Sheet
28-pin QFN-40 to 85 °C2.5 GHz/2.3 GHz/IF OUT
Si4136-F-GTSample
Buy
Data Sheet
24-pin TSSOP-40 to 85 °C2.5 GHz/2.3 GHz/IF OUT

The Si413x RF Synthesizers include three voltage-controlled oscillators, loop filters, reference and VCO dividers and phase detectors. Variables for dividers, phase detector gain settings and power-down settings are programmable through a three-wire serial interface (data, clock and enable) and a 22-bit internal shift register. The Si4133 comes standard in a low-profile, small-outline, 24-pin package (TSSOP) and 28-lead micro leadframe package (MLP).

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RF Synthesizers