User's Manual
Table Of Contents
- About the Document
- Contents
- Table Index
- Figure Index
- 1 Introduction
- 2 Product Concept
- 3 Application Interface
- 3.1. General Description
- 3.2. Pin Assignment
- 3.3. Pin Description
- 3.4. Operating Modes
- 3.5. Power Saving
- 3.6. Power Supply
- 3.7. Turn on and off Scenarios
- 3.8. Reset the Module
- 3.9. RTC Interface
- 3.10. UART Interface
- 3.11. USIM Card Interface
- 3.12. USB Interface
- 3.13. PCM and I2C Interface
- 3.14. Network Status Indication
- 3.15. Operating Status Indication
- 4 Antenna Interface
- 5 Electrical, Reliability and Radio Characteristics
- 6 Mechanical Dimensions
- 7 Storage and Manufacturing
- 8 Appendix A Reference
- 9 Appendix B GPRS Coding Scheme
- 10 Appendix C GPRS Multi-slot Class
- 11 Appendix D EDGE Modulation and Coding Scheme
UMTS/HSPA Module Series
UG96 Hardware Design
UG96_Hardware_Design Confidential / Released 36 / 75
The recommended circuit is similar to the PWRKEY control circuit. You can use open drain/collector
driver or button to control the RESET_N.
Reset pulse
RESET_N
4.7K
47K
≥ 100ms
Figure 16: Reference Circuit of RESET_N by Using Driving Circuit
RESET_N
S3
Close to S3
TVS
Figure 17: Reference Circuit of RESET_N by Using Button
The reset scenario is illustrated as the following figure.
V
IL
≤ 0.5V
V
IH
≥ 1.3V
VBAT
≥ 100ms
RESTARTING
Module
Status
RESET_N
RUNNING
> 5s
STATUS
> 3s
RUNNING
OFF
Figure 18: Timing of Resetting Module