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Re: [Discuss-gnuradio] 64MHz USRP Oscillator

From: Carles Fernandez
Subject: Re: [Discuss-gnuradio] 64MHz USRP Oscillator
Date: Thu, 24 Jul 2008 15:27:41 +0200

By the way, could someone tell me what is the part number of the VCTCXO shipped with USRP Rev 4.5? In the bill of materials of the trunk I see "CTX286LVCT-ND", which seems to correspond to CB3LV-3C-64M0000 in the manufacturer's nomenclature.

The datasheet (http://www.ctscorp.com/components/Datasheets/008-0256-0_E.pdf) specifies +/- 50 ppm, but I have read somewhere that actually it is +/- 20 ppm.

Which is the right one?


>>> <address@hidden> wrote:
>>> > Hi All,
>>> >
>>> > I am having lots of issues with the USRP  64MHz (20ppm) on board
>>> > oscillator
>>> > which does not allow me to get exact and constant RF frequencies out of
>>> > the
>>> > RFX900 board. I can not really fix that in SW so I was thinking about
>>> > replacing the 64MHz crystal with a more precise one. Has anybody a
>>> > suggestion of which part to use?

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