Put the circuit board in the refrigerator at -35 degrees, the output waveform is unstable, and it will return to normal waveform after one or two minutes at room temperature.
We found the problem, which is that the temperature difference is too large, which leads to the chip calibration at room temperature and the IQ Mismatch Calibration at low temperature. How to solve this problem?
chrome-extension://oemmndcbldboiebfnladdacbdfmadadm/https://www.ti.com/lit/an/spracf4c/spracf4c.pdf?ts=1700705653100&ref_url=https%253A%252F%252Fdev.ti.com%252F
We found the problem, which is that the temperature difference is too large, which leads to the chip calibration at room temperature and the IQ Mismatch Calibration at low temperature. How to solve this problem?
