8N4QV01LG-0126CDI8

Programmable Timers And Oscillators Overview

The Renesas 8N4QV01LG-0126CDI8 is a quad-frequency programmable voltage-controlled crystal oscillator (VCXO) belonging to the FemtoClock NG series. It utilizes fourth-generation technology to deliver high clock frequencies with low phase noise. The device operates on a single 2.5V or 3.3V supply and features an I2C interface for precise frequency programming, ranging from 15.476MHz to 866.67MHz and 975MHz to 1,300MHz. It includes four power-up default frequencies selectable via control pins and supports absolute pull-range (APR) adjustment. The component is housed in a compact 10-CLCC package.

Programmable Timers And Oscillators Feature Summary

• Quad-frequency programmability with I2C control for output clock frequencies between 15.476MHz–866.67MHz and 975MHz–1,300MHz
• Low RMS phase jitter performance, typically 0.494ps at 156.25MHz (12kHz–20MHz offset)
• Programmable absolute pull-range (APR) adjustable from ±4.5ppm to ±754.5ppm
• Single 2.5V or 3.3V LVDS differential clock output with LVCMOS/LVTTL compatible control inputs

Programmable Timers And Oscillators Applications

• Wireless infrastructure equipment requiring precise timing signals
• Telecommunication base stations and network synchronization systems
• High-speed data communication networking end equipment

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix '0126' against official Renesas documentation to confirm the exact four power-up default frequencies associated with this part number. Confirm RoHS compliance status and lead-free packaging details directly with the manufacturer or authorized distributors, as these attributes are standard for the FemtoClock NG series but must be validated for the specific order code.

Programmable Timers And Oscillators Selection Notes

Select this component when flexible frequency synthesis and low jitter are required in a small form factor. Ensure the design supports I2C programming for dynamic frequency changes if variable APR or frequency steps are needed. Verify that the system power supply aligns with the 2.5V or 3.3V operating range and that the thermal environment remains within the -40°C to 85°C specification.

Programmable Timers And Oscillators Part Context

This model is part of the Renesas FemtoClock NG family, which integrates advanced PLL technology into VCXOs. The 8N4QV01 series specifically targets applications demanding high stability and programmability. The 'CDI8' suffix indicates the ceramic CLCC package and reel/tray packaging configuration typical for surface-mount assembly in industrial and telecom sectors.

Programmable Timers And Oscillators Replacement Considerations

Consult the IDT/Renesas FemtoClock NG ordering guide for direct pin-compatible substitutes with different default frequency sets. Cross-reference with other 8N4QV01 variants to ensure electrical compatibility regarding supply voltage and output drive strength before substitution.