The osc has an amp between these pins. So your waveform in will not equal
waveform out. Plus in order to observe the "real" waveform at these pins
requires you use a low C FET probe on the scope, somewhere in the range of
1 - 2 pF. A 10 MOhm probe will, if not stop the oscillation, badly load the circuit
node you are trying to observe.
In my case i am not able to find output when downloading "BLE Find me" example hex file in PSOC4 module. However Advertising LED goes up. I used spectrum analyzer near antenna to observe spectrum between ISM band, but nothing is there. What may be the reason?
i am thinking this may be due to xtal unbalanced output?
The RF power levels quite small and non continuous, take a look at this
for idea of what power looks like in a BLE application. Note spectrum
analyzer should not have IF BW set real low or pulse gets integrated out.
http://www.cypress.com/documentation/application-notes/an92584-designing-low-power-and-estimating-battery-life-ble AN92584 - Designing for Low Power and Estimating Battery Life for BLE Applications