GPS Receiver at IEEE RADIO 2019 by Dr. Miroslav Skoric
YIC GPS receiver was demonstrated at IEEE RADIO 2019, article from Dr. Miroslav Skoric.
32.768KHz Tuning Forks Crystal Design Note
Here is a quartz crystal inside the 32.768KHz tuning forks crystal, it is easy to cause breakage of the crystal when it impacted or dropped, and the crystal is ineffective.
Increased crystal impedance, resulting in reduced oscillation stability
The oscillation stability reduces due to the increase of Crystal Impedance (CI).
When the CI value is significant, the starting or stopping voltage becomes high. That is, even if the voltage increase, it is difficult to start the oscillation. Also, the voltage slightly lower, and the oscillation becomes unstable or stopped.
YIC Releases 4-in-1 GNSS Internal Antenna: ATIGGB2520-EXMMCX
New release of 4 in 1 GNSS (GPS + GLONASS + Galileo + BeiDou) internal antenna: ATIGGB2520-EXMMCX