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