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22 Mar 2002
5V OCXO HCMOS Output HCD351
36.10 (max)
19.40
(max)
8.90
27.20 (max)
1
2
34
5
0.80Ø 5.00
PIN
1
2
3
4
5
CONNECTION
Freq adjustment
Ref voltage out
Supply
RF output
Ground & case
BOTTOM VIEW
8.90
25.40
0.50
17.80
15.00
Features
«HCMOS Output
«Standard European IEC CO-08 pin-out
«Single oven & oscillator supply
«AT cut or SC cut overtone crystal
«Custom options available
Product name + frequency
eg: HCD351AT 10.0MHz
HCD351SC 5.0MHz
Option code X (eg HCD351AT/X) denotes a custom spec.
Ordering Information
Scale 1:1
Option
Codes
AT SC
Variant
Parameters
쮿Standard. 왏Optional - Please specify required code(s) when ordering
Specifications
HCD351AT: AT cut overtone crystal
HCD351SC: SC cut overtone crystal
Frequency range: 5.0 ~ 20.0MHz 쮿쮿
(5.0 & 10.0MHz are standard)
Frequency stability:
Per day at despatch ±1x10-9 ±5x10-10
Per year max ±1x10-7 ±5x10-8
Per 10% change in VDD ±3x10-9 ±1x10-9
Short term stability: Over 1 sec ±5x10-11 ±1x10-11
Temperature stability:
Over -20 to +70°C ±2x10-8 ±1x10-8
Operating temperature range:
-20 to +70°C 쮿쮿
Storage temperature range:
-40 to +90°C 쮿쮿
Output waveform:
50pF HCMOS, 45:55 duty 쮿쮿
Frequency adjustment:
Electrical, over +0.5 to +4.0V ±1x10-6 ±5x10-7
(sufficient for 10 years ageing min)
Stabilised +4.0V supply provided
Supply voltage (VDD):
+5.0V (±0.25V) 쮿쮿
Power consumption:
5.0W max at switch on 쮿쮿
1.2W typ when stabilised at 25°C 쮿쮿
Warm up: After 8mins at +20°C ±2x10-8 ±2x10-8
Phase noise (@ 10.0MHz):
dBc/Hz @ 10Hz < -110 < -120
dBc/Hz @ 100Hz < -130 < -130
dBc/Hz @ 1kHz < -145 < -150
dBc/Hz @ 10kHz < -150 < -155
dBc/Hz @ 50kHz < -153 < -155
Shock: IEC 68-2-27 Test Ea
50G for 11ms 쮿쮿
Vibration: IEC 68-2-06 Test Fc
10-55Hz, 1.5mm. 55-500Hz, 10G 쮿쮿
