Q: What accuracy has the PPS (pulse per second) signal of MedaTek MT3339 before obtaining 3D-fixes?"
The accuracy of the PPS (pulse per second) signal of MedaTek MT3339 after obtaining 3D-fix is 10 ns (jitter).
The quality of the PPS (pulse per second) signal of MedaTek MT3339 before obtaining 3D-fixes (e.g. after TTFF or after obtaining 2D-Fix) is not documented, and therefore the developer should not rely upon it.