The XT is a quartz-based PLL oscillator with integrated TCXO with a key focus on stability. The XT family has frequency stability as tight as ±3ppm for -40 °C to +85 °C and life stability of ±13ppm. It is ideal for enterprise-level equipment that demands low noise, stable, and accurate timing/clock sources such as transceiver module or data center.

Short lead-time, low noise, wide frequency range, excellent ambient performance, and very little engineering effort to incorporate this into your design make the XT series an excellent choice over the conventional technologies. The XT family provides extremely quick delivery for both standard and custom frequencies.

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  • Frequency range: 15MHz to 2100MHz
  • Output types: CML, HCSL, LVDS, LVPECL
  • Phase jitter (12kHz to 20MHz): 135fs typical (150fs max)
  • Supply voltage: 1.8V, 2.5V or 3.3V
  • Package options:
    • 3.2mm x 2.5mm x 0.85mm
  • Operating temperature and stability:
    • -40 °C to +85 °C, ±3ppm
  • Frequency stability for life:
    • -40 °C to +85 °C, ±13ppm




Type Title Date
Datasheet PDF 499 KB
Overview PDF 526 KB
Overview PDF 525 KB
Guide PDF 536 KB
Guide PDF 321 KB 简体中文
Application Brief PDF 686 KB
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Design & Development

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ProXO+ High Accuracy, High Frequency Differential Oscillators Overview

Learn about the ProXO+ differential clock portfolio featuring ±3ppm frequency stability and phase jitter performance as low as 135fs at up to 2.1GHz frequencies. Programmability enables customers to customize the devices quickly and easily, in addition to reducing non-recurring engineering (NRE) costs. A compact 3.2mm x 2.5mm plastic package simplifies the bill of materials (BOM), lowering BOM costs, and offers more supply chain flexibility.