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FeelTech FY3224S 24MHz 2-Channel DDS AW Function Signal Generator

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BrokeEngineering:

--- Quote from: tautech on December 18, 2024, 01:17:04 am ---
--- Quote from: BrokeEngineering on December 18, 2024, 01:10:32 am ---
--- Quote from: tautech on December 18, 2024, 01:07:05 am ---
--- Quote from: BrokeEngineering on December 18, 2024, 12:54:00 am ---Welp I finished the PSU,

Here it is if anyone has anything to comment/improve before I order it:

--- End quote ---
Consider changing the layout in some areas to make the PCB more friendly to repair/rework hand soldering.

--- End quote ---

Which part do you think its not easy to repair?

--- End quote ---
L3 = rotate
R2&3 = move

--- End quote ---

R2 and 3 are feedback resistors that need to be placed close as possible to feedback pin in order to have correct and stable feedback.

L3 is a filter inductor and moving it anywhere will increase ground loop of other components.

Thanks for the suggestion though. I will post the project files and gerbers so you can fork it and make the mods if you think its hard to solder :)

tautech:

--- Quote from: BrokeEngineering on December 18, 2024, 01:21:15 am ---
--- Quote from: tautech on December 18, 2024, 01:17:04 am ---
--- Quote from: BrokeEngineering on December 18, 2024, 01:10:32 am ---
--- Quote from: tautech on December 18, 2024, 01:07:05 am ---
--- Quote from: BrokeEngineering on December 18, 2024, 12:54:00 am ---Welp I finished the PSU,

Here it is if anyone has anything to comment/improve before I order it:

--- End quote ---
Consider changing the layout in some areas to make the PCB more friendly to repair/rework hand soldering.

--- End quote ---

Which part do you think its not easy to repair?

--- End quote ---
L3 = rotate
R2&3 = move

--- End quote ---

R2 and 3 are feedback resistors that need to be placed close as possible to feedback pin in order to have correct and stable feedback.

L3 is a filter inductor and moving it anywhere will increase ground loop of other components.

Thanks for the suggestion though. I will post the project files and gerbers so you can fork it and make the mods if you think its hard to solder :)

--- End quote ---
Then consider moving the other components that restrict access to R2/3.

BrokeEngineering:

--- Quote from: tautech on December 18, 2024, 01:24:49 am ---
--- Quote from: BrokeEngineering on December 18, 2024, 01:21:15 am ---
--- Quote from: tautech on December 18, 2024, 01:17:04 am ---
--- Quote from: BrokeEngineering on December 18, 2024, 01:10:32 am ---
--- Quote from: tautech on December 18, 2024, 01:07:05 am ---
--- Quote from: BrokeEngineering on December 18, 2024, 12:54:00 am ---Welp I finished the PSU,

Here it is if anyone has anything to comment/improve before I order it:

--- End quote ---
Consider changing the layout in some areas to make the PCB more friendly to repair/rework hand soldering.

--- End quote ---

Which part do you think its not easy to repair?

--- End quote ---
L3 = rotate
R2&3 = move

--- End quote ---

R2 and 3 are feedback resistors that need to be placed close as possible to feedback pin in order to have correct and stable feedback.

L3 is a filter inductor and moving it anywhere will increase ground loop of other components.

Thanks for the suggestion though. I will post the project files and gerbers so you can fork it and make the mods if you think its hard to solder :)

--- End quote ---
Then consider moving the other components that restrict access to R2/3.

--- End quote ---

Better?

BrokeEngineering:
Made a version with Earth Connection between 2 Y capacitors after the CM Choke and a bit more safety aspects.

This is mainly for the people that already have an 3 pin earthed connector fitted.

There is a few more changes, its a bit bigger but based on the pic and some image measuring software it should still fit :)

BrokeEngineering:
After a bunch more tweaking, I think its ready.

Fixed some routing, added a filter for the +12V rail and added an Parallel damped filters to all the LDO inputs where there was a bit of a peak at around 20khz due to the filter:

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