Sebastiaan Heunis wrote:
Hi
I need to figure out exactly what is happening to a captured signal
from the moment it enters the TVRX daughtercard to the moment it
enters the PC. At this moment I am conducting some experiments on the
TVRX card. I need to measure the signal that leaves the card and
enters the ADC. My understanding is that pins 17 and 18 of this
module are a differential output. We don't have a differential probe,
so I'm using CH1-Ch2 and displaying this. My understanding is that if
I input a 100MHZ sine wave to the TVRX card, a 5.75MHZ sine should be
leaving it (we have a 3x7901 tuner module).
The 3x7901 has a 43.75 MHz IF, not 5.75.
Matt
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