QDi.AC

Quantum Diamond Atomic Clock

QDi.AC is a frequency reference based on the magnetic spin transitions of a synthetic crystal diamond. It is a through-hole component intended for soldered integration into system electronics that require a long-holdover clock source. The QDi.AC leverages the inherent stability and ruggedness of a synthetic diamond crystal to enable exceptional holdover in a variety of application areas and environments, while generating a pre-configured 10 or 20 MHz LVCMOS or sine wave reference signal.

Key features and Applications

Key Features
• Less than 13 cc volume
• Exceptionally low aging rate
• Quick warmup time < 10 s
• 10/20 MHz sine wave/LVCMOS-compatible output
• 1 pps output optional

Applications
• GPS receivers and precision timing
• Inertial navigation systems
• Autonomous sensor networks
• Test & measurement systems
• Network infrastructure
• Backpack radios

Options

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Performance Specification
Parameter
Conditions
Values
Unit
Output Level
LVCMOS
< 0.1-2.5 TYP
Low/High V
Sinusoid
< 1.8 TYP
Vpp
Rise/Fall Time
1 TYP
ns
ADEV
Per Day
0.01
ppt [10-12]
1 year
-
ppt [10-12]
Phase Noise (10Mhz)
Tested at +25°C (Nominal)
1 Hz
< -70
dBc/Hz
10 kHz
< -132
dBc/Hz
Phase Noise (20Mhz)
Tested at +25°C (Nominal)
1 Hz
< -70
dBc/Hz
10 kHz
< -132
dBc/Hz
Supply Voltage
4–25
V
Power Dissipation
Start up
0.8
W
Steady State
0.2
W
Outline Dimensions

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