On 02/08/2015 05:23 PM, glen english wrote:
I did say dBm .....
Oops. I haven't memorized that uV to dBm table yet.
Regarding the frequency control and regulators, we have the DAC/ADC
clocks and frequency synthesizers all running off of one oscillator. The
computer is on a separate module that we don't make. Each of digital
power and analog power are set up as two stages with a
wide-voltage-range regulator making 5V and then that feeds multiple 3.3
regulators. VCOs have their own regulators separate from the rest of
analog. We do not use the IF oscillator in the CMX991 because it has
parasitics at audio. There are separate digital and analog ground planes
and a single-point ground at the antenna connector.
Thanks
Bruce
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