Golledge GOXO-149 6-pad SMD OCXO


3.3V Surface Mount OCXO

  • Miniature SM package - 50% smaller footprint than DIL-14
  • Ideally suited for base stations, VSAT etc
  • Outstanding phase noise characteristics
  • 3.3V supply
  • LVCMOS output
Configurable Options
ParameterOption Code
Temperature stability
Operating temperature range
Frequency adjustment
Quantity / Special Request

Please specify the quantity you require below.

The GOXO-149 is supplied on tape and reel. 500pcs per reel is the standard T&R pack size for this product. Partial quantities may be supplied on tape (no reel), or in bulk.

Product Description

The GOXO-149 OCXO with LVCMOS output and optional electronic frequency control, features 14.0 x 9.0 x 8.51mm surface mount package, making it ideal for a range of applications where OCXO-level phase noise performance is needed but board space is also paramount.

Requiring supply voltage of 3.3V at frequencies from 10.0 ~ 80.0MHz, the GOXO-149 is available with a choice of operating temperature ranges including commercial, extended and industrial operating temperature range (-40 to +85°C). 

The GOXO-149 features excellent phase noise performance, with noise floor of -154 dBC/Hz @ 100kHz (10.0MHz example), and equivalent phase jitter performance of 0.25ps typical. 

Frequency range 10.0 ~ 80.0MHz
Dimensions 14.10 x 9.10 x 8.51mm
Ageing (after 30 days) < ±1x10-8 per day
< ±5x10-7 first year
Calibration tolerance @ 25°C < ±1x10-6
Frequency stability < ±2x10-8 per 5% change in load
< ±2x10-8 per 5% change in VDD
Overall stability* ±4.6x10-6 max
Storage temperature range -55 to +125°C
Output waveform 15pF LVCMOS
45:55% @ 50%VDD
Rise / fall times 6.5ns
Start up time 10ms
Supply voltage (VDD) +3.3V (±5%)
Power consumption (0+70°C) 2.5W max at switch on
1.1W typ when stabilised at 25°C
Warm up (to within spec) 60s at +25°C
90s at -40°C
Allan variance (1 sec) < ±1x10-9
Phase noise (@ 10.0MHz) < -100 dBc/Hz @ 10Hz
< -128 dBc/Hz @ 100Hz
< -145 dBc/Hz @ 1kHz
< -151 dBc/Hz @ 10kHz
< -154 dBc/Hz @ 100kHz
Phase jitter RMS 0.25ps typ, 0.35ps max, 12kHz~fo/2
Package Drawing
Ordering Information

To request a quotation for the GOXO-149 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.

Soldering Profile
Solder reflow profile
Tape & Reel Specification
Tape and Reel specifications
Handling & Storage

ESD-HBM-1A Human Body Model (HBM) 1A (250V to <500V)

MSL1 Moisture Sensitivity Level (MSL): 1 (or not applicable)


FR4 substrate, Ryton R4 cover, Water resistant, non hermetic seal


Please refer to our DOCUMENTS section for more information.

PbFree Lead-free (< 0.1% by weight )

RoHS compliant no exempts - PS Docs Version RoHS compliant with no exemptions.

REACH - PS Docs Version REACH compliant.

Conflict minerals - PS Docs version Free of conflict minerals.

Halogen free - PS Docs version Free from halogens.

Ozone depleting - PS Docs version Free from ozone-depleting substances.