Product Info
Table Of Contents
- About the Document
- Contents
- Table Index
- Figure Index
- 1 Introduction
- 2 Product Concept
- 3 Application Interfaces
- 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. Power-on/off Scenarios
- 3.8. Reset the Module
- 3.9. (U)SIM Interfaces
- 3.10. USB Interface
- 3.11. UART Interfaces
- 3.12. PCM and I2C Interfaces
- 3.13. SPI Interface
- 3.14. Network Status Indication
- 3.15. STATUS
- 3.16. ADC Interface
- 3.17. Behaviors of RI
- 3.18. USB_BOOT Interface
- 4 GNSS Receiver
- 5 Antenna Interfaces
- 6 Electrical, Reliability and Radio Characteristics
- 7 Mechanical Dimensions
- 8 Storage, Manufacturing and Packaging
- 9 Appendix A References
- 10 Appendix B GPRS Coding Schemes
- 11 Appendix C GPRS Multi-slot Classes
- 12 Appendix D EDGE Modulation and Coding Schemes
LTE Standard Module Series
EG91 Hardware Design
EG91_Hardware_Design 16 / 93
Baseband
PMIC
Transceiver
NAND
DDR2
SDRAM
PA
PAM
Switch
ANT_MAIN ANT_DIV
VBAT_BB
VBAT_RF
PWRKEY
VDD_EXT
USB PCM UARTI2C
RESET_N
19.2M
XO
STATUS
GPIOs
Control
IQ Control
Duplexer
SAW
Tx
PRx DRx
(U)SIM2
SPI
(U)SIM1
SAW
LNA
ANT_GNSS
1)
SAW
GPS
Figure 1: Functional Diagram
1)
GNSS antenna interface is only supported on EG91-NA/-NS/-VX/-EX.
2.4. Evaluation Board
Quectel provides a complete set of evaluation tools to facilitate the use and testing of EG91 module. The
evaluation tool kit includes the evaluation board (UMTS<E EVB), USB data cable, earphone, antenna
and other peripherals.
NOTE