OCXO CMOS Output High Performance HCD681
Tel: +44 1460 256 100
Fax: +44 1460 256 101
E-mail: sales@golledge.com
Web: www.golledge.com
05 Mar 2013
24.50
(max)
1.00Ø
50.80
4
2
5
31
PIN
1
2
3
4
5
CONNECTION
Freq adjustment
Ref voltage out
RF output
Ground
Supply
40.64
40.64
10k multi-turn
BOTTOM VIEW
5.60
50.80
VOLTAGE CONTROL
2
1
4
1k
0.50
Features
Temperature stability down to 1ppb
Single 12V supply (12V ~ 30V optional)
Standard US footprint & pin-out
“Best in class” close-in phase noise option
Part No, or product name + option codes + frequency
eg: HCD681/FTFN 10.0MHz
Option code X (eg HCD681/X) denotes a custom specification.
Ordering Information
Scale 1:1
Specifications
Option
Codes
HCD681
Product
Parameters
Standard.
Optional - Please specify required code(s) when ordering
Frequency range: 5.0 ~ 20.0MHz
Ageing per day (at despatch):
< 1x10-9 D
< 5x10-10 E
< 2x10-10 F
Frequency stability:
< 1x10-7 per year (option D)
< 2x10-8 per year (option F)
< 1x10-9 per 10% change in VDD
< 5x10-10 per 10% change in load
Temperature stability: < 1x10-8 R
< 5x10-9 S
< 3x10-9 T
< 1x10-9 V
Operating temperature range:
-10 to +60°C C
-20 to +70°C F
-40 to +70°C G
Storage temperature range:
-40 to +90°C
Output waveform:
CMOS / TTL compatible
Frequency adjustment:
±5x10-7 (typ) over +0.5 to +7.0V
(sufficient for 10 years ageing min)
Stabilised +7.0V supply provided
Supply voltage (VDD): +12V (±0.5V) N
Other options from 12~30V specify
Power consumption:
5.0W max at switch on
1.2W typ when stabilised at 25°C
Warm up:
< 1x10-8 after 8mins at +20°C
Allan deviation (ADEV), 1 sec:
< 5x10-13 over 1 sec (5.0MHz)
< 1x10-12 over 1 sec (10.0MHz)
Close-in phase noise (@ 5.0MHz):
< -110 dBc/Hz @ 1Hz, <-135 @ 10Hz
< -123 dBc/Hz @ 1Hz, <-140 @ 10Hz Z
< -150 dBc/Hz @ 100Hz
Close-in phase noise (@ 10.0MHz):
< -95 dBc/Hz @ 1Hz, <-130 @ 10Hz
< -108 dBc/Hz @ 1Hz, <-135 @ 10Hz Z
< -145 dBc/Hz @ 100Hz
Far-out phase noise (all freqs):
< -155 dBc/Hz @ 1kHz
< -157 dBc/Hz @ 10kHz
< -157 dBc/Hz @ 100kHz
Harmonics: < -30dB wrt carrier
