SI4122-D-GT

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI4122-D-GT is a single-band RF synthesizer manufactured by Skyworks Solutions, Inc., housed in a 24-TSSOP package. It integrates three circuits within a Phase Locked Loop (PLL) architecture to generate stable frequencies for wireless applications. The device operates on a supply voltage ranging from 2.7 V to 3.6 V, with a typical operating voltage of 3 V. It accepts an input frequency between 2 MHz and 26 MHz and produces an output frequency range of 526 MHz to 1.72 GHz. Designed for surface-mount installation, it functions reliably within a temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates three PLL circuits for comprehensive RF signal generation
• Output frequency range spans 526 MHz to 1.72 GHz
• Operates on a 2.7 V to 3.6 V power supply
• Compatible with standard 24-TSSOP surface-mount packaging

Clock Generators, PLLs, Frequency Synthesizers Applications

• Telecommunications infrastructure equipment
• Cellular baseband circuitry
• RF transceiver modules

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the manufacturer designation as Skyworks Solutions, Inc., noting historical branding transitions from Silicon Laboratories. Confirm the specific suffix '-GT' corresponds to the tube packaging format containing 62 units per factory pack. Ensure compliance with Moisture Sensitivity Level 3 requirements during storage and handling procedures.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a single-chip solution for single-band synthesis is required within the 526 MHz to 1.72 GHz spectrum. Verify that the system design accommodates the 24-TSSOP footprint and that the available input clock frequency falls within the 2 MHz to 26 MHz operational window.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the SI4122 series of RF synthesizers. Related variants include the SI4122-D-GTR, which utilizes reel packaging instead of tubes, and the SI4112-D-GMR, which features different output configurations. These components share similar architectural foundations but differ in packaging and specific interface outputs.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The SI4122-D-GTR serves as a direct functional substitute differing only in packaging format (reel versus tube). Other models in the family, such as the SI4133-D-GT, offer additional output capabilities including IF signals.