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ClearClock™ Third Overtone XOs

AX3 (3.2 X 2.5 mm) CLEARCLOCK™

The optimal convergence in miniature size and <80fs jitter performance

Abracon's new AX3 ClearClock™ series of ultra-low jitter and power-optimized 3.2 x 2.5 mm crystal oscillators is ideal for applications requiring carrier frequencies in the 100MHz to 200MHz range. This next generation of ClearClock™ is designed to meet the needs of compact applications, such as optical modules, active cables and small networking and storage gear, while maintaining the world’s highest data rates in excess of 10Gbps and up to 100/400Gbps.

Most network processors and advanced CPUs require ultra-low jitter for connectivity greater than 10Gigabits per second and up to 100Gbps. The AX3 provides the best combination of ultra-low sub-100fs jitter performance in a small footprint. Typically consuming 30mW of power at the lowest operating voltage of 1.8V, the AX3 delivers industry-leading low power consumption for a low noise differential XO.

The AX3's quieter third overtone architecture avoids phase locked loop (PLL) based multiplication, reducing overall power consumption far below other high performance XO alternatives.

The series covers all necessary differential output logic types (HCSL, LVDS, LVPECL).

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Ultra-Low Jitter For the World's Highest Data Rates

Product Information



  • PCI Express
  • 10G/40G/100G optical Ethernet
  • Networking and Communications
  • RF Systems
  • RF Systems
  • BTS / Basestations
  • Test and Measurement
  • Data Center


<80fs Typ (150fs Max @ 156.25MHz)

Available in industry standard frequencies: 100MHz to 200MHz

Lowest in-class Power Consumption 16mA Typ LVDS @ 156.25MHz

±25ppm stability: Over industrial operating temperatrue (-40 to +85ºC)

3.3V, 2.5V, 1.8V supply voltage options

Supports LVPECL, LVDS, HCSL differential outputs

Industry Standard 3.2 x 2.5 x 1.0 mm Footprint


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