8N4Q001EG-0123CDI8

Programmable Timers And Oscillators Overview

The Renesas 8N4Q001EG-0123CDI8 is a programmable quad-frequency voltage-controlled crystal oscillator (VCXO) utilizing FemtoClock NG technology. It operates on a single 3.135V to 3.465V supply with a typical current draw of 160 mA. The device provides four power-up default frequencies, including 350MHz, 312.5MHz, 175MHz, and 156.25MHz, which are reprogrammable via an I2C interface. It features low phase jitter performance and is housed in a compact 10-CLCC (7x5mm) surface-mount package suitable for high-density designs.

Programmable Timers And Oscillators Feature Summary

• Quad-frequency programmability with four distinct power-up defaults
• I2C interface for dynamic frequency and control register reprogramming
• Low phase jitter: 0.494ps RMS at 156.25MHz (12kHz-20MHz bandwidth)
• Compact 10-lead CLCC ceramic package (7x5mm)

Programmable Timers And Oscillators Applications

• Wireless infrastructure base stations
• Telecommunication networking equipment
• High-speed data transmission systems

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix '0123' against official Renesas documentation to confirm the exact programmed default frequencies and pull-range parameters. Confirm RoHS compliance status as some variants in this series may have different environmental certifications. Ensure the 10-CLCC footprint matches the target PCB layout constraints.

Programmable Timers And Oscillators Selection Notes

Select this component when multiple fixed clock frequencies are required from a single package without external switching. The I2C programmability allows for system-level flexibility. Verify that the required output frequency range falls within the specified limits and that the 160mA supply current fits the thermal budget of the application.

Programmable Timers And Oscillators Part Context

This part belongs to the FemtoClock NG family of programmable oscillators. It shares architectural similarities with other 8N4Q001 variants but differs in its specific factory-programmed default frequencies and I2C configuration codes defined by the order code suffix.

Programmable Timers And Oscillators Replacement Considerations

Direct pin-to-pin replacements within the same FemtoClock NG family require verification of identical default frequency configurations. Cross-referencing with IDT legacy part numbers may be necessary if sourcing from distributors carrying older inventory.