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 May 2011
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 3ppb
«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
쮿Standard. 왏Optional - Please specify required code(s) when ordering
Frequency range: 5.0 ~ 20.0MHz 쮿
Ageing per day (at despatch):
<1x10-9 쮿D
<5x10-10 왏E
<2x10-10 쮿F
Frequency stability:
<1x10-7 per year (option D) 왏
<2x10-8 per year (option F) 왏
<1x10-9 per 10% change in VDD 쮿
<5x10-10 per 10% change in load 쮿
Temperature stability: < 1x10-8 쮿R
< 5x10-9 왏S
< 3x10-9 쮿T
Operating temperature range:
-10 to +60°C왏C
-20 to +70°C쮿F
-40 to +70°C왏G
Storage temperature range:
-40 to +90°C쮿
Output waveform:
CMOS / TTL compatible 쮿
Frequency adjustment:
±5x10-7 (typ) over +0.5 to +7.0V 쮿
(sufficient for 10 years ageing min)
Stabilised +7.0V supply provided
Supply voltage (VDD):+12V (±0.5V) 쮿N
+24V (±0.5V) 왏T
Other options from 12~30V 왏specify
Power consumption:
5.0W max at switch on 쮿
1.2W typ when stabilised at 25°C쮿
Warm up:
<1x10-8 after 8mins at +20°C쮿
Allan deviation (ADEV),1 sec:
<5x10-13 over 1 sec (5.0MHz) 쮿
<1x10-12 over 1 sec (10.0MHz) 쮿
Close-in phase noise (@ 5.0MHz):
<-110 dBc/Hz @1Hz,<-135 @10Hz 쮿
<-123 dBc/Hz @1Hz,<-140 @10Hz 왏Z
<-150 dBc/Hz @100Hz 쮿
Close-in phase noise (@ 10.0MHz):
<-95 dBc/Hz @1Hz,<-130 @10Hz 쮿
<-108 dBc/Hz @1Hz,<-135 @10Hz 왏Z
<-145 dBc/Hz @100Hz 쮿
Far-out phase noise (all freqs):
<-155 dBc/Hz @1kHz 쮿
<-157 dBc/Hz @10kHz 쮿
<-157 dBc/Hz @100kHz 쮿
Harmonics: < -30dB wrt carrier 쮿
