SI4136-F-GT

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI4136-F-GT is a monolithic ISM RF synthesizer with integrated VCOs for wireless communications, manufactured by Skyworks Solutions Inc. and packaged in a 24-pin TSSOP. It performs dual-band RF synthesis (RF1: 2300–2500 MHz; RF2: 2025–2300 MHz) and IF synthesis (62.5–1000 MHz). The device operates on a 2.7 V to 3.6 V supply, drawing 25.7 mA typically. Key electrical parameters include -130 dBc/Hz phase noise at 1 MHz offset for RF1, 5 µA standby current, and programmable serial interface control.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Dual-band RF synthesis covering 2025 MHz to 2500 MHz
• Integrated IF synthesizer ranging from 62.5 MHz to 1000 MHz
• Low power consumption with 5 µA standby current
• Internal self-tuning algorithm compensates for external inductor tolerances

Clock Generators, PLLs, Frequency Synthesizers Applications

• ISM and MMDS band communications
• Wireless LAN (WLAN) and Wireless WAN (WWAN)
• Dual-band communication systems

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the manufacturer designation as Skyworks Solutions Inc., noting that Silicon Laboratories was the original developer of this technology family. Confirm the package type is strictly 24-pin TSSOP. Ensure compliance with lead-free and RoHS standards as specified for the GT suffix.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when designing ISM band radios requiring integrated frequency synthesis without external loop filters. The internal bond wire inductance fixes the RF VCO ranges, while the IF VCO requires an external inductor between IFLA and IFLB pins. Ensure the system controller supports the required three-wire serial interface timing constraints.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si4136/Si4126 family of ISM RF synthesizers. While originally developed by Silicon Laboratories, the product line has been transitioned to Skyworks Solutions Inc. The 'GT' suffix specifically denotes the 24-pin TSSOP package variant, distinct from the QFN package options available in the broader family.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public confirmed substitute part numbers are not provided in the verified source material.