280G-49LF

Overview

The 280G-49LF is a VersaClock clock generator and frequency synthesizer manufactured by Renesas Electronics Corporation. This integrated circuit supports input frequencies up to 200 MHz and provides four output channels with a 1:4 input-to-output ratio. It features differential CMOS outputs and includes an internal Phase-Locked Loop (PLL) with bypass capability. The device operates within a supply voltage range of 3.135V to 3.465V and is rated for commercial temperatures from 0°C to 70°C. It is housed in a 16-TSSOP surface-mount package.

Feature Summary

• VersaClock series clock generator/frequency synthesizer
• Input frequency up to 200 MHz
• Four differential CMOS outputs
• Internal PLL with bypass option

Applications

• General-purpose clock distribution
• Frequency synthesis for digital systems
• Spread spectrum clock generation

Procurement Notes

Verify the current lifecycle status, as this component may be discontinued or subject to production changes. Confirm the specific suffix '49' matches the required pinout and electrical specifications against the official datasheet before procurement. Check for alternate assembly sites or material change notifications that could affect compatibility.

Selection Notes

Select this component when a low-jitter, programmable clock source with multiple differential outputs is required. Ensure the system design accommodates the 3.135V to 3.465V supply voltage constraint. Verify that the 16-TSSOP package dimensions fit the PCB layout constraints and that the thermal requirements for the 0°C to 70°C operating range are met.

Part Context

This part belongs to the Renesas VersaClock family, which specializes in clock generation and distribution solutions. These devices are commonly used to replace crystal oscillators and buffer chips, offering flexibility in frequency programming and jitter reduction for high-speed digital interfaces.

Replacement Considerations

Consult the manufacturer's obsolescence notices for recommended replacements. If this part is end-of-life, verify if newer VersaClock models with compatible pinouts and electrical characteristics are available.