Tweaking a cheap Tenor TE7022 USB converter board - Page 3 - diyAudio
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Old 1st May 2013, 09:22 PM   #21
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Because the clock is now on a different board, I don't think I need 5V on this board at all. Can someone recommend a low noise 3.3V surface mount regulator to replace the one that is already on there?
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Old 2nd May 2013, 06:24 AM   #22
marce is offline marce  United Kingdom
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Firstly what regulator is on the board. It may also be adequate for the job.
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Old 10th May 2013, 01:29 AM   #23
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Printed on top of the 3.3V regulator is "112ZE 17-33".
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Old 10th May 2013, 06:32 AM   #24
marce is offline marce  United Kingdom
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Initial search drew a blank!
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Old 10th May 2013, 04:01 PM   #25
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It was the same when I looked too. My guess is that it is pretty low quality.
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Old 10th May 2013, 05:17 PM   #26
phofman is offline phofman  Czech Republic
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Quote:
Originally Posted by themartianboy View Post
Printed on top of the 3.3V regulator is "112ZE 17-33".
My 2 cents - a clone of http://www.datasheetcatalog.org/data...1/216987_1.pdf - page 6 upper right corner?
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Old 14th May 2013, 08:03 PM   #27
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Good find, but I think it looks more like the first chip on that page: SOT223-3L. The markings would fit with the description. Output Type: 3.3V, Year: 2001, Month: 12, ID Code: ZE (whatever that refers to)

I didn't mention that there is a backwards "C" before the "112ZE". Maybe the backwards "C" is the logo of the manufacturer?
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Old 9th June 2013, 05:37 PM   #28
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So does anyone think it's worth replacing the 3.3V regulator?
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Old 11th June 2013, 03:48 AM   #29
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McLanz had the advice of using a battery for power. Could a simple 9V alkaline or Ni-MH battery be used instead of the bigger and more expensive lead acid battery?
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