Evaluation Board - Quectel EG91 Series Hardware Design

VBAT_RF
VBAT_BB
PWRKEY
RESET_N
STATUS
NOTE
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&LTE EVB), USB data cable, earphone, antenna
and other peripherals.
EG91_Hardware_Design
ANT_MAIN
PAM
PA
Tx
PMIC
Control
19.2M
XO
VDD_EXT
USB
Figure 1: Functional Diagram
LTE Standard Module Series
1) ANT_DIV
ANT_GNSS
SAW
Duplexer
LNA
SAW
PRx
GPS
Transceiver
IQ Control
Baseband
(U)SIM1 (U)SIM2
PCM I2C
EG91 Hardware Design
Switch
SAW
DRx
NAND
DDR2
SDRAM
SPI UART GPIOs
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