3.3v regulator
#1
Hi,

  I just received my Pin64+ (2GB) board and touchscreen and after mounting in the C4 labs case am very pleased.

Also happy to see that I'm not running into the Gb ethernet issue:

Through switch:

Code:
[font=Courier New]Connecting to host 192.168.1.184, port 5201[/font]
[font=Courier New][  4] local 192.168.1.146 port 33754 connected to 192.168.1.184 port 5201[/font]
[font=Courier New][ ID] Interval           Transfer     Bandwidth       Retr  Cwnd[/font]
[font=Courier New][  4]   0.00-1.00   sec   113 MBytes   947 Mbits/sec    0   1.20 MBytes       [/font]
[font=Courier New][  4]   1.00-2.00   sec   111 MBytes   929 Mbits/sec    0   1.20 MBytes       [/font]
[font=Courier New][  4]   2.00-3.00   sec   110 MBytes   927 Mbits/sec    0   1.20 MBytes       [/font]
[font=Courier New][  4]   3.00-4.01   sec   111 MBytes   928 Mbits/sec    0   1.20 MBytes       [/font]
[font=Courier New][  4]   4.01-5.00   sec   110 MBytes   928 Mbits/sec    0   1.20 MBytes       [/font]
[font=Courier New][  4]   5.00-6.00   sec   110 MBytes   923 Mbits/sec    0   1.20 MBytes       [/font]
[font=Courier New][  4]   6.00-7.00   sec   111 MBytes   931 Mbits/sec    0   1.20 MBytes       [/font]
[font=Courier New][  4]   7.00-8.00   sec   110 MBytes   925 Mbits/sec    0   1.20 MBytes       [/font]
[font=Courier New][  4]   8.00-9.00   sec   111 MBytes   930 Mbits/sec    0   1.20 MBytes       [/font]
[font=Courier New][  4]   9.00-10.00  sec   110 MBytes   926 Mbits/sec    0   1.20 MBytes       [/font]
[font=Courier New]- - - - - - - - - - - - - - - - - - - - - - - - -[/font]
[font=Courier New][ ID] Interval           Transfer     Bandwidth       Retr[/font]
[font=Courier New][  4]   0.00-10.00  sec  1.08 GBytes   929 Mbits/sec    0             sender[/font]
[font=Courier New][  4]   0.00-10.00  sec  1.08 GBytes   927 Mbits/sec                  receiver[/font]

As I want to use this for audio (usb out to external dac), one of my main priorities is to keep power line noise (ripple) as low as possible, including on the ethernet and usb ports. I will certainly implement the Pi filter arrangement mentioned in a power supply thread on the forum, but am sure that I have also seen mention of the possibility to add a better 3.3v regulator at the pads here.  Unfortunately I've lost the thread where this was discussed.  I have a suitable ultra low nopise 5v - 3.3v regulator and would love to try the mod, if anyone can point me to the discussion of how it is done.  Obviously the new regulator needs soldering in correctly, but the old regulatory circuit must also be disconnected.  Does anyone have any clues/pointers?

 BR.

--Marius--
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