34 lines
1.6 KiB
Markdown
34 lines
1.6 KiB
Markdown
# 10MHz Reference Sources
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1. 10mHz (1ns period) OCOX (Oven Controlled) oscillator for beat time perhaps?
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1. **investigate** state of the art **10mhz** and see if can **input** via clock/something else
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2. check specs!
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1. repeatability
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2. reliability
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3. margin of error
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4. stability (time)
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5. power input
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6. signal output
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1. connector
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2. voltage
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3. power
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7. noise
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8. operating temperature
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9. square wave ideally?
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3. check off TCXO **only use OCXO and DOCXO**
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4. only use 10mhz reference sources
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5. square wave ideally
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6. output over gpio ideally
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7. 3.3v/5v ideally
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8. usb-c for power ideally
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9. acquire ALL DA DATASHEETS
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10. **MUST SUPPORT FREQUENCY DIVIDER down to 1MHz MAX**
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11. **CAN DISCIPLINE GPSDO PPS IF SUPPORTED**
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1. [One (aliexpress)](https://www.aliexpress.us/item/3256809505766372.html)
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2. [Two (aliexpress)](https://www.aliexpress.us/item/3256810096296631.html)
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3. [Three (aliexpress)](https://www.aliexpress.us/item/3256805803653257.html)
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4. [Cheap Reference OCXO (aliexpress)](https://www.aliexpress.us/item/3256807112194740.html?spm)
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5. [Quality Variable Reference OCXO (aliexpress)](https://www.aliexpress.us/item/3256808516082974.html)
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6. [OCXO with atomic clock port, no reference?](https://www.aliexpress.us/item/3256804938971512.html)
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7. [Cheap Ref 10mhz sma connectors low noise](https://www.aliexpress.us/item/3256808618867244.html)
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8. [SMD OCXO 10mhz](https://www.aliexpress.us/item/3256809395237681.html)
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9. [TCXO Ref 10MHZ 5V SQUARE WAVE 50ohm load required usb-c power](https://www.aliexpress.us/item/3256810530735650.html) |