Usb Termination Ics

[BenScar]

Hello there,

A while ago nubie mentioned a lovely little IC (specifically the USBDFxxW5), for terminating the output of the USB and making it useable. (mentioned here)
It is tiny, I mean 2.2mm x 1.35mm x 1.1mm and I'd like to have a play with it and my 2x...
Now this would be a lot easier if I knew anywhere in the UK that was selling them!

I've tried Googling it, asking in Maplins (that was worth the trip...) and asking a couple of electronics people I know and they've looked at me blankly...

So, does anyone know where in the UK I can get my hands on these little ICs?

Thanks to anyone who can help!
Ben

 

[Squidge]

I thought USB just required a 44 ohm termination, which means you should be able to use a couple of resistors rather than the IC that you can't find (along with the mandatory stabilising caps of course).

 

[BenScar]

I've tried it that way, as per the Wiki but I was thinking about making it internal... At least I was thinking about it.

As you rightly say, could do it with discreet components but I want something new to try and those would be a challenge

 

[rokdcasbah]

i think you mean "discrete"...in this case using resistors rather than IC would be the non-discreet method

 

[BenScar]

i think you mean "discrete"...in this case using resistors rather than IC would be the non-discreet method
:unsure: Spelling never was my strong point but yes, that's what I meant
One tiny little IC rather than than a 3/4 component res/cap combo to do the same thing.

 

[Squidge]

i think you mean "discrete"...in this case using resistors rather than IC would be the non-discreet method

I would have thought a couple of 0402 resistors would be discrete enough

 

[rokdcasbah]

i think you mean "discrete"...in this case using resistors rather than IC would be the non-discreet method

I would have thought a couple of 0402 resistors would be discrete enough


you almost got me with this...i was about to say "it's all relative"...you tricky bastard...

anyway my suggestion is to somehow use surface-mount resistors, then you can make it both discreet and discrete

 

[Squidge]

arn't 0402 resistors surface mount already?

 

[rokdcasbah]

damn, should have read more closely...foiled again. that's what i get for being pedantic