USRP2 with 10MHz Function Generator

Hi

  1.  I am interested to use  Function Generator with Square Waveform 
    

out put as a Reference Clock input (10 MHZ)to USRP2. Is this a fine
approach to do so…?
2) What is the relation ship between PPS IN and REF Clock input of
USRP2?

Waiting for early Response

Zimran Rafique

Hi

  1.  I am interested to use  Function Generator with Square Waveform 
    

out put as a Reference Clock input (10 MHZ)to USRP2. Is this a fine
approach to do so…?
2) What is the relation ship between PPS IN and REF Clock input of
USRP2?

Waiting for early Response

Zimran Rafique

Hi

  1.  I am interested to use  Function Generator with Square Waveform 
    

out put as a Reference Clock input (10 MHZ)to USRP2. Is this a fine
approach to do so…?
2) What is the relation ship between PPS IN and REF Clock input of
USRP2?

Waiting for early Response

Zimran Rafique

Hi

  1.  I am interested to use  Function Generator with Square Waveform 
    

out put as a Reference Clock input (10 MHZ)to USRP2. Is this a fine
approach to do so…?
2) What is the relation ship between PPS IN and REF Clock input of
USRP2?

Waiting for early Response

Zimran Rafique

Hi

  1.  I am interested to use  Function Generator with Square Waveform 
    

out put as a Reference Clock input (10 MHZ)to USRP2. Is this a fine
approach to do so…?
2) What is the relation ship between PPS IN and REF Clock input of
USRP2?

Waiting for early Response

Zimran Rafique

  1.  I am interested to use  Function Generator with Square Waveform out put 
    

as a Reference Clock input (10 MHZ)to USRP2. Is this a fine approach to do so…?

http://www.ettus.com/uhd_docs/manual/html/usrp2.html#ref-clock-10mhz

  1.  What is the relation ship between PPS IN and REF Clock input of USRP2?
    

The PPS should be in the same clock domain as the reference clock.

-josh

On 02/09/2011 05:15 PM, hafiz zimran wrote:

Hi

  1.  I am interested to use  Function Generator with Square Waveform
    

out put as a Reference Clock input (10 MHZ)to USRP2. Is this a fine
approach to do so…?

Yes

  1.  What is the relation ship between PPS IN and REF Clock input of
    

USRP2?

The PPS_IN should be in the same clock domain as the 10 MHz if you plan
to synchronize multiple USRPs to each other. Otherwise, you can use any
PPS signal.

Matt

On Tue, 2011-02-15 at 11:43 -0800, Matt E. wrote:

  1.  What is the relation ship between PPS IN and REF Clock input of
    

USRP2?

The PPS_IN should be in the same clock domain as the 10 MHz if you plan
to synchronize multiple USRPs to each other. Otherwise, you can use any
PPS signal.

Matt

I actually synchronize multiple USRPs with unaligned 10MHz and pps.
Sometimes two USRPs are offset one clock cycle (10ns) but that is OK
for my application. Of course, I need also to consider that one pps
interval will not be exactly 100e6 clock cyckles

BR/
Per

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