SI4112-D-GT

Product Overview

The SI4112-D-GT from Skyworks Solutions Inc. is a surface-mount PLL frequency synthesizer IC offered in a 24-TSSOP package. It uses a crystal input to produce a clock output and has a maximum frequency of 1 GHz. The device contains one circuit, operates from a 2.7 V to 3.6 V supply, and has an operating temperature range of -40°C to 85°C. Its input-to-output ratio is 1:1, and both input and output are non-differential.

Key Features

• PLL frequency synthesizer IC with a maximum frequency of 1 GHz
• Crystal input and clock output for non-differential timing interfaces
• Single circuit with a 1:1 input-to-output ratio
• 24-TSSOP surface-mount package, 0.173 in (4.40 mm) width
• 2.7 V to 3.6 V supply range and -40°C to 85°C operating temperature range

Applications

• Crystal-referenced clock generation for digital logic and timing subsystems
• Frequency synthesis for embedded boards that require a non-differential clock output
• Clock generation for measurement or control equipment using a crystal input and a 1 GHz maximum frequency

Design & Procurement Notes

When selecting the SI4112-D-GT, verify that the system power rail remains within 2.7 V to 3.6 V and that the board layout supports the 24-TSSOP footprint with a 4.40 mm body width. The 1:1 input-to-output ratio and non-differential input/output characteristics should be checked against the downstream clock interface, especially when the crystal input and clock output are used directly in a single-ended timing path. Thermal design should account for the -40°C to 85°C operating range, and the 1 GHz maximum frequency should be treated as a device-level limit rather than a guarantee of a specific output frequency.