8N4Q001LG-0139CDI8

Programmable Timers And Oscillators Overview

The Renesas 8N4Q001LG-0139CDI8 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 supports supply voltages of 2.5V or 3.3V and operates within an ambient temperature range of -40°C to 85°C. It features an I2C programming interface for configuring output frequencies, absolute pull-range (APR), and internal PLL registers. The component provides one LVDS differential clock output and includes two control inputs for selecting power-up default frequencies.

Programmable Timers And Oscillators Feature Summary

• Quad-frequency programmability with four power-up defaults reprogrammable via I2C
• Frequency range from 15.476MHz to 866.67MHz and 975MHz to 1,300MHz
• Absolute pull-range (APR) programmable from ±4.5ppm to ±754.5ppm
• Low RMS phase jitter: 0.494ps typical at 156.25MHz (12kHz - 20MHz)

Programmable Timers And Oscillators Applications

• Wireless infrastructure equipment
• Telecommunication systems
• Networking end equipment

Programmable Timers And Oscillators Part Context

This component is part of the IDT/Renesas 8N4QV01 family, which are quad-frequency programmable VCXOs. The specific suffix '0139' typically denotes the programmed default frequencies and package type (10-CLCC). The device is manufactured by Renesas Electronics Corporation, formerly Integrated Device Technology (IDT), under the FemtoClock brand.

Programmable Timers And Oscillators Replacement Considerations

Direct replacements must match the 8N4QV01 family specifications, including the 10-CLCC package and FemtoClock NG architecture. Verify that substitute components support the required frequency ranges and APR settings. Note that older IDT-branded parts may be cross-referenced as Renesas equivalents.