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OCXO Technical Specification Sheet - HCD331

High Performance, low cost, low profile OCXO. 5V supply and HCMOS output.

Overtone AT Crystal, 13 to 50MHz. Standard European IEC CO-08 pin-out.

Model

HCD331

Frequency

13 to 20MHz

Output

HCMOS, max. 50pF load

Frequency Ageing Rate per day, at despatch

<±3x10-9, <20MHz <±5x10-9, 20 to 50MHz

Projected Ageing Rate per year

±3x10-7

Operating Temperature Range

Standard -20 to +60oC

Other options available in range –40oC to +75oC

Temperature Stability

<±5x10-8 over -20oC to +60oC

Stability With Supply Voltage

<5x10-8 for ±5% change, frequency control voltage constant

Phase Noise  Offset Typical values
(data for 10MHz quoted)  10Hz -100dBc/Hz
100Hz -120
1kHz -135
50kHz -150
10kHz -150
Duty Cycle 55:45 maximum. 10-90% rise/fall 5ns

Warm-Up Error

<±5x10-8 of final frequency after 10mins at +25oC

Frequency Adjustment, (electrical only), +0.5 to 4.0V, stabilised output provided

Typically 5x10-6 total span, sufficient for a minimum of 15 years ageing

Power Supply

5V DC, ±0.25V maximum

Power Consumption

4.5W maximum at switch on

Typically <1.0W when stabilised at +25oC

Dimensions (max)

36.1mm long

27.2mm wide
15.0mm high
Option of 13.3mm high case (limited to operating temperature 
range –10 to +70oC)

Shock

IEC 68-2-27 Test Ea. 50G for 11ms

Vibration

IEC 68-2-06 Test Fc. 10-55 Hz, 1.5mm

55-500Hz, 10G

Storage Temperature

-40 to +90oC

Humidity

>90% non-condensing, sealed package

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