HCD661
Tel: +44 1460 256 100 Fax: +44 1460 256 101 E-mail: sales@golledge.com Web: www.golledge.com
22 Mar 2002
24.50
(max)
1.00Ø
51.00 (max)
41.00
(max)
321
45
PIN
1
2
3
4
5
CONNECTION
Ground
Freq adjustment
Ref voltage out
Supply
RF output
21.00 21.00
32.00
10k multi-turn
BOTTOM VIEW
5.60
25.00
VOLTAGE CONTROL
3
2
1
1k
16.00
0.50
Product name + frequency
eg: HCD661AT 10.0MHz
HCD661SC 5.0MHz
Option code X (eg HCD661SC/X) denotes a custom spec.
Ordering Information
Scale 1:1
Specifications
HCD661AT: AT cut overtone crystal
HCD661SC: SC cut overtone crystal
Option
Codes
AT SC
Variant
Parameters
쮿Standard. 왏Optional - Please specify required code(s) when ordering
Features
«Temperature stability down to 3ppb
«Single oven & oscillator supply
«AT cut or SC cut overtone crystal
«Standard European pin-out
«Custom options available
Frequency range: 5.0 ~ 20.0MHz 쮿쮿
(5.0 & 10.0MHz are standard)
Frequency stability:
Per
day at despatch
±1x10-9 ±2x10-10
Per
year max ±1x10-7 ±2x10-8
Per 10% change in VDD ±3x10-9 ±1x10-9
Short term stability: Over 1 sec ±5x10-11
Over 1 sec (5.0MHz) ±5x10-12
Over 1 sec (10.0MHz) ±1x10-11
Temperature stability:
Over -20 to +70°C ±1x10-8 ±3x10-9
Operating temperature range:
-20 to +70°C 쮿쮿
Other options from -40°C 왏specify
Storage temperature range:
-40 to +90°C 쮿쮿
Output waveform:
HCMOS / TTL compatible 쮿쮿
Frequency adjustment:
Electrical, over +0.5 to +7.0V ±1x10-6 ±5x10-7
(sufficient for 10 years ageing min)
Stabilised +7.0V supply provided
Supply voltage (VDD):
+12.0V (±0.5V) 쮿쮿
Other options from 12~30V 왏왏specify
Power consumption:
5.0W max at switch on 쮿쮿
1.3W typ when stabilised at 25°C 쮿쮿
Warm up: After 12mins at +25°C ±2x10-8
After 8mins at +25°C ±1x10-8
Phase noise (@ 10.0MHz):
dBc/Hz @ 10Hz < -120 < -130
dBc/Hz @ 100Hz < -130 < -145
dBc/Hz @ 1kHz < -150 < -155
dBc/Hz @ 10kHz < -155 < -158
dBc/Hz @ 50kHz < -155 < -160
Harmonics: < -30dB wrt carrier 쮿쮿
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
12V OCXO HCMOS Output High Performance
