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. Charging interface
- 3.6. Power saving
- 3.7. Summary of state transitions
- 3.8. RTC backup
- 3.9. Serial interfaces
- 3.10. Audio interfaces
- 3.11. SIM card interface
- 3.12. SD card interface
- 3.13. PCM interface
- 3.14. ADC
- 3.15. Behaviors of the RI
- 3.16. Network status indication
- 3.17. 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
M80 Hardware Design
M80_HD_V1.2 - 19 -
Serial Flash
Baseband Engine
PAM
PMU
Power
supply
RTC
Charge
UART
SIM
SD
EINT
Turn on/off
Indicator
ADC
PCM
Transceiver
Saw
26MHz
32kHz
Audio
codec
RF
Figure 1: Module functional diagram
2.3. Evaluation board
In order to help customer to develop applications with M80, Quectel supplies an evaluation board
(EVB), RS-232 to USB cable, power adapter, earphone, antenna and other peripherals to control
or test the module. For details, please refer to the document [12].