Re: [Xylo-SDR] Lionheart Block diagram V1.1

["Phil Harman" <pvharman@arach.net.au>]

I've up loaded V1.1 of the block diagram to www.hamsdr.com. I've been able 
to answer a number of the previous questions by looking at Leon's circuit 
diagram.

A few more questions.

1. How should we bring the External Control In/Out onto the board (these are 
to control external devices such as amplifiers etc. as per the current X2 on 
the SDR1000)?
2. To buffer the 200MHz NCO/DDS clock how about an DS90LV018? It only needs 
350mV to give  3.3v out and we could place a 50 ohm resistor across the 
input to terminate the coax correctly.

73's Phil....VK6APH



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