The ADF4001's output charge pump is tristated when not locking to an external reference, and a resistor divider holds the VCTCXO's tuning input at 1/2 Vcc. The B200 hardware can use the AD9361's low-speed DAC to drive the VCTCXO's tuning input via AUXDAC1 if R118 is populated; however, this functionality is not supported by the B200 UHD driver.
--n On Thu, May 15, 2014 at 2:48 AM, Robert Light <robert.li...@gmx.de> wrote: > Hi, In case we use on-board oscillator , how is ADF4001 configured? Does > CP (pin20) output affect the VCXO_Tune ? Is it possible to control this > chip directly from the command line? > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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