HCD685 | Fast Warm Up OCXO with Sine Output and US Pin-out

Configurable Options
Frequency
kHz MHz GHz
Ageing per day (at despatch)
Any
< 1x10^-9	D
< 5x10^-10	E
< 2x10^-10	F
Temperature stability
Any
< 1x10^-8	R
< 5x10^-9	S
< 3x10^-9	T
< 1x10^-9	V
Operating temperature range
Any
-10 to +60°C	C
-20 to +70°C	F
-40 to +70°C	G
Output waveform
Sine wave, 7dBm (±1dBm) into 50Ω
Other options to +13dBm max
Supply voltage (V_DD)
+12V (±0.5V)	N
Other options from 12~30V
Close-in phase noise (@ 5.0MHz)
Any
< -110 dBc/Hz @ 1Hz, <-135 @ 10Hz
< -123 dBc/Hz @ 1Hz, <-140 @ 10Hz	Z
< -150 dBc/Hz @ 100Hz
Close-in phase noise (@ 10.0MHz)
Any
< -95 dBc/Hz @ 1Hz, <-130 @ 10Hz
< -108 dBc/Hz @ 1Hz, <-135 @ 10Hz	Z
< -145 dBc/Hz @ 100Hz

Product Description

The HCD685 OCXO provides features standard US pin-out package and provides sine wave output with exceptionally tight temperature stability, including options as good as ±1ppb. Available at frequencies from 5.0MHz to 20.0MHz and with optional supply voltage, the HCD685 oven controlled oscillator also features excellent ageing specifications, with options as good as <2 x 10^-10 per day available, good close-in phase noise specifications, for example -150dBc/Hz @ 10Hz when operating at 5.0MHz, and fast warm up times.

Specifications

Frequency range	5.0 ~ 20.0MHz
Dimensions	50.8 x 50.8 x 24.5mm
Frequency stability	< 1x10^-7 per year (option D) < 2x10^-8 per year (option F) < 1x10^-9 per 10% change in V_DD < 5x10^-10 per 10% change in load
Storage temperature range	-40 to +90°C
Frequency adjustment	±5x10^-7 (typ) over +0.5 to +7.0V (sufficient for 10 years ageing min) Stabilised +7.0V supply provided
Power consumption	10.0W max at switch on 1.3W typ when stabilised at 25°C
Warm up	< 1x10^-8 after 2.25mins at +25°C
Allan deviation (ADEV), 1 sec	< 5x10^-13 over 1 sec (5.0MHz) < 1x10^-12 over 1 sec (10.0MHz)
Far-out phase noise (all freqs)	< -155 dBc/Hz @ 1kHz < -157 dBc/Hz @ 10kHz < -157 dBc/Hz @ 100kHz
Harmonics	< -30dB wrt carrier

Package Drawing

Package footprint and pad configuration drawing for the Golledge HCD 51x51 OCXO showing full dimensions.

Ordering Information

To request a quotation for the HCD685 please use the configurable options form to choose the options you require and then submit your configured product to our team. Our expert advisers are always happy to help with your requirements and can be contacted on +44 1460 256 100 or at sales@golledge.com.

Following product selection you will be issued with a seven character Golledge part number. Your Golledge part number is the internationally accepted Golledge manufacturing part number (MPN) that should be used for all project documentation, including bills of materials (BoMs) and purchase orders.

If you have any queries regarding any of our documentation our dedicated sales team will be happy to help.