User's Manual
Table Of Contents
- Contents
- Table Index
- Figure Index
- 0. Revision history
- 1. Introduction
- 2. Product concept
- 3. Application interface
- 3.1. Pin
- 3.2. Operating modes
- 3.3. Power supply
- 3.4. Power on and down scenarios
- 3.5. Power saving
- 3.6. Summary of state transitions
- 3.7. RTC backup
- 3.8. Serial interfaces
- 3.9. Audio interfaces
- 3.10. SIM card interface
- 3.12. Behaviors of the RI
- 3.13. Network status indication
- 3.14. Operating status indication
- 4. Antenna interface
- 5. Electrical, reliability and radio characteristics
- 6. Mechanical dimensions
- 7. Storage and Manufacturing
- Appendix A: GPRS coding schemes
- Appendix B: GPRS multi-slot classes
M95 Hardware Design
M95_HD_V1.0 - 64 -
@power level #15,Typical 69mA
PCS1900
@power level #0 <250mA,Typical 153mA
@power level #7,Typical 82mA
@power level #15,Typical 70mA
5.5. Electro-static discharge
Although the GSM engine is generally protected against Electrostatic Discharge (ESD), ESD
protection precautions should still be emphasized. Proper ESD handling and packaging procedures
must be applied throughout the processing, handling and operation of any applications using the
module.
The measured ESD values of module are shown as the following table:
Table 28: The ESD endurance (Temperature:25℃,Humidity:45 %)
Tested point
Contact discharge
Air discharge
VBAT,GND
±5KV
±10KV
RF_ANT
±5KV
±10KV
TXD, RXD
±4KV
±8KV
Others
±0.5KV
±1KV