SI4113-D-GT

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI4113-D-GT is a dual-band RF synthesizer manufactured by Skyworks Solutions, Inc., designed for wireless communication applications. It integrates two voltage-controlled oscillators (VCOs) to provide independent RF outputs: RF1 operates from 900 MHz to 1.8 GHz, and RF2 covers 750 MHz to 1.5 GHz. The device also includes an integrated intermediate frequency (IF) output ranging from 62.5 MHz to 1000 MHz. It accepts a reference input frequency between 2 MHz and 26 MHz. Power supply requirements are specified with a minimum of 2.7 V and a maximum of 3.6 V, typically operating at 3 V. The component is housed in a QFN-28 package and supports surface-mount installation.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Dual-band operation with integrated VCOs for RF1 (900 MHz–1.8 GHz) and RF2 (750 MHz–1.5 GHz).
• Integrated IF output range spanning 62.5 MHz to 1000 MHz.
• Reference input frequency support from 2 MHz to 26 MHz.
• Operates within a supply voltage range of 2.7 V to 3.6 V.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Wireless communication systems requiring dual-frequency synthesis.
• RF front-end modules for cellular infrastructure.
• Baseband processing units needing stable local oscillator signals.

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the package type against inventory records, as the SI4113-D-GM variant utilizes a QFN-28 package while the -GT suffix typically denotes a TSSOP-24 package in similar Skyworks series listings. Confirm moisture sensitivity level and reflow soldering profiles prior to assembly. Ensure the specific -GT suffix matches the required footprint for PCB design compatibility.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the SI4113-D-GT when dual-band RF synthesis with integrated VCOs is required for frequencies up to 1.8 GHz. Compare the TSSOP-24 package dimensions against board space constraints if replacing QFN variants. Verify that the IF output range meets the mixer or down-conversion requirements of the target system architecture.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The SI4113 belongs to the Skyworks SI41xx series of PLL RF synthesizers. This family includes variants such as the SI4112 and SI4123, which offer single-band or different output configurations. The SI4113 specifically addresses applications needing simultaneous dual-band generation without external VCOs, simplifying the RF chain design compared to discrete solutions.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Publicly confirmed substitute part numbers for the SI4113-D-GT are not available in the provided source material. Cross-reference tools may identify parametrically similar devices, but functional equivalence must be verified against the specific datasheet parameters.