Not from user experience but just
comparing the datasheets, the REP version is the extended performance version.
>From what I see in the datasheet its operating temp is spec’d from -55 to
125Deg C. whereas the T version is only slightly worse at -40 to 125Deg C. else
all else look equal.
Who are you using to fab/assembly the flex
if you don’t mind me asking.
[mailto:firstname.lastname@example.org] On Behalf Of Brian Joly
Sent: Thursday, April 03, 2008
Subject: Re: [Gumstix-users]
24-pin flex -> 1 USB + 1 RS232
I'd like to use the TPS73133 cap-free voltage regulator for
my 24-pin flex connector to USB adapter. There are two versions offered
by Digikey, TPS73133DBVT and TPS73133MDBVREP. Other than the part numbers
these items appear to be identical. Which one should I use? If you
have a schematic showing the proper location of the TPS73133 then please email
Date: Sat, 29 Mar 2008 16:11:45 -0700 (PDT)
From: zyagon <email@example.com>
Subject: Re: [Gumstix-users] 24-pin flex -> 1 USB + 1 RS232
Content-Type: text/plain; charset=us-ascii
if you do not want to make a custom board use the usb signals on the 24-pin
get a usb hub and usb-serial adapters. you'll only need a 3.3v voltage
regulator and 2 capacitors http://gumstix.net/wiki/index.php?title=USB
just a cap-free voltage regulator (for example tps73133)
(capacitor is recommended but not
connect Vin to V_BATT (5V) and Vout to USBH_PWR1 (3.3V) plus ground. this is
the easy way
Brian J wrote:
> I have the verdex with netwifimicrosd and robostix. Unless I attempt
> redesign the tweener board to fit my stack I think my only option to add
> an RS232 interface is via the 24-pin flex connector. But I also want
> add USB. Has anyone made a board using the 24-pin flex connector
> multiple USB or RS232 interfaces? I am not an electrical engineer so
> developing my own board seems to quite a daunting task. If you have
> solution or an idea that might work then let me know.
> Brian Joly
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