pin #7 is at groundNot jitter.
Ignore the scope frequency readout of f = 13.8886kHz
Look at the waveform on the oscilloscope screen. TIME/DIV is set to 1ms. Screen shows one cycle in 1ms which is 1kHz.
The mean voltage is 4.97V with an amplitude of 0.3V.
Looks like you are missing a GND connection on your IC.