RF Synthesizers

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


RF Synthesizers Product Matrix

Devices
Part Number Data Sheet Description Temperature Range (ºC) Package Type
Si4112-D-GM
IF OUT -40 85 QFN28
Si4112-D-GT
IF OUT -40 85 TSSOP24
Si4113-D-GM
RF1/RF2 OUT -40 85 QFN28
Si4113-D-GT
RF1/RF2 OUT -40 85 TSSOP24
Si4122-D-GM
RF2/IF OUT -40 85 QFN28
Si4122-D-GT
RF2/IF OUT -40 85 TSSOP24
Si4123-D-GM
RF1/IF OUT -40 85 QFN28
Si4123-D-GT
RF1/IF OUT -40 85 TSSOP24
Si4126-F-GM
2.3 GHz/IF OUT -40 85 QFN28
Si4133-D-GM
RF1/RF2/IF OUT -40 85 QFN28
Si4133-D-GT
RF1/RF2/IF OUT -40 85 TSSOP24
Si4136-F-GM
2.5 GHz/2.3 GHz/IF OUT -40 85 QFN28
Si4136-F-GT
2.5 GHz/2.3 GHz/IF OUT -40 85 TSSOP24
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