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What is the need of Differential Receiver in the transceiver
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bharatsmile2007



Joined: 19 Sep 2007
Posts: 120
Post02 Nov 2009 5:37   

What is the need of Differential Receiver in the transceiver
hi all

What is the need of Differential Receiver in the transceiver Cell of an USB IO?

Pls find the main blocks of USB Transceiver IO attached...

Thanks
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hage-bai



Joined: 01 Oct 2007
Posts: 5
Helped: 2
Post02 Nov 2009 5:51   

Re: What is the need of Differential Receiver in the transce
You can most likely configure the two adjacent pins to use differential signalling for Tx and Rx functions. Very useful for critical high speed signals where you want to reduce the differential component of cross-talk significantly.

The box circled is for receiving differential data and will find the differential voltage between the two signals at the pins (Vdiff_rx = Vd_p - Vd_m). Vp and Vm are presumably 180 degress out of phase for proper crosstalk supression.
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bharatsmile2007



Joined: 19 Sep 2007
Posts: 120
Post09 Nov 2009 6:03   

Re: What is the need of Differential Receiver in the transce
Thankyou for the reply..

i got why differential receiver is needed...

do you have any idea why two single ended receivers are used for in general in a transevier?

Thanks
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