Not the normal PSU topics but........
Can anyone help me identify these SOT23-5 regulators?
3.3v marked 3A29S
5v marked 9BME
I know what they are and the pin outs, but I'd really like to id and find the specs to see if its worth swapping them to lower noise versions.
Thanks
Can anyone help me identify these SOT23-5 regulators?
3.3v marked 3A29S
5v marked 9BME
I know what they are and the pin outs, but I'd really like to id and find the specs to see if its worth swapping them to lower noise versions.
Thanks
An externally hosted image should be here but it was not working when we last tested it.
These regs are for the DAC (5v) and the clock logic (3.3v) in the squeezebox touch.
I've already replaced them with large low noise regulators with positive effect. I would like to identify the originals in order to see if something like the LP2985 which is pin identical but includes the option for the bypass cap for ultra low noise operation might be a significant step up from the standard regs.
I've already replaced them with large low noise regulators with positive effect. I would like to identify the originals in order to see if something like the LP2985 which is pin identical but includes the option for the bypass cap for ultra low noise operation might be a significant step up from the standard regs.
I've just got a squeezebox, but at the moment I am wary of messing with it. I think I will wait till the warranty runs out first.
Had a look around, they look like fixed output LDO regs, but with quite a few firms doing them its hard to tell who's they are. With the selling price of the Squeezebox, I should imagine the electronics parts BOM will be quite restricted for cost. I'm curious to who manufactured them, cost of power supply parts is usually a good sign of overall quality of parts.
Had a look around, they look like fixed output LDO regs, but with quite a few firms doing them its hard to tell who's they are. With the selling price of the Squeezebox, I should imagine the electronics parts BOM will be quite restricted for cost. I'm curious to who manufactured them, cost of power supply parts is usually a good sign of overall quality of parts.
Don't worry, plenty to do in it!!
Check some of the details here
http://forums.slimdevices.com/showthread.php?t=91794
An externally hosted image should be here but it was not working when we last tested it.
Check some of the details here
http://forums.slimdevices.com/showthread.php?t=91794
Why are you using RCA version?
On the list!!! Initial tests were based on how far the onboard DAC could be pushed.
I'd really appreciate if someone has an SMD codebook and can ID the regs in post 1.
Thanks
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