Specs Value
Device Type Holdover OCXOs
19.44 MHz
Frequency Stability (ppm)
Operating Temp. Range (°C)
-40 to 85
Supply Voltage (V)
Package Size (mm x mm)
Output Drive Strength*
Regulated LVCMOS
Feature Pin
Pull Range (PPM PR)

*See datasheet for details

8-Hour Holdover in real world conditions for 2x better service continuity

  • ±0.3  ppb/day aging 
  • Inclusive of an 8°C temperature change with ITU-T recommended profile and 1 m/s airflow

Exceptional dynamic stability under airflow, fast temp. ramp

  • ±3 and ±5 ppb over-temp. stability from -40 to 95°C 
  • ±0.02 ppb/°C frequency slope (ΔF/ΔT) -- Ensures system-level quality of service for telecom and networking equipment in hostile environments
  • 4E-12 HDEV at 10 second averaging time

3x lower power and 25x less volume for compact edge and datacenter devices

  • 420 mW typical power consumption (3.3V)
  • Robust 9.0 x 7.0 x 3.6 mm package

Best phase noise under vibration

  • Minimizes call and/or link drops in high-vibration environments

No activity dips or microjumps

  • Eliminates any need for costly screening or burn-in tests

On-chip power-supply noise filtering for excellent PSNR

  • Reduces BOM by eliminating a dedicated LDO for OCXO

LVCMOS or clipped sinewave output

  • Optimizes for best balance between EMI and jitter

Rich programmable features

  • Any frequency between 10 to 60 MHz
  • 2.5, 2.8, and 3.3V power supply options 

Digital frequency tuning through I2C and SPI

  • Large pull range from ±3.125 to ±400 ppm
  • 5E-14 frequency pull resolution
  • Eliminate frequency shift caused by board noise

Superior reliability – reduces field failures and repair costs due to clock components

  • 1 billion hours MTBF
  • Lifetime warranty
  • 5G Infrastructure
  • 4G / 5G RRH, DU
  • ITU-T G.8273.2 Class D
  • Small Cells
  • Datacenter Switches & Routers
  • Core & Edge Routers
  • Optical Transport (OTN, OLT, etc.)
  • Timing Servers
  • Test & Measurement
  • IEEE 1588 Boundary Clocks & Grandmasters
  • SONET/SDH Stratum 3E
  • GNSS Disciplined Timing Modules

Frequency Slope (dF/dT) Calculator – Calculate frequency slope over temperature

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