UMTS/HSPA+ Module Series
UC200A-GL_Hardware_Design 33 / 78
RESET_N
S2
Close to S2
TVS
Figure 14: Reference Circuit of RESET_N with Button
The timing of resetting module is illustrated in the following figure.
V
IL
≤
0.5 V
VBAT
Module
Status
Running
RESET_N
Baseband restart
Baseband resetting
≥
300 ms
Figure 15: Timing of Resetting Module
⚫
1. Please ensure that there is no large capacitance with the max value exceeding 10 nF on PWRKEY
and RESET_N pins.
2. RESET_N only resets the internal baseband chip of the module and does not reset the power
management chip.
NOTE