Quectel EG06 Series, Manual

Page: 30 / 97

LTE-A Module Series
EG06 Hardware Design
EG06_Hardware_Design 28 / 89
COEX_UART_
TX
145 DO
LTE/WLAN
coexistence signal
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep it
open.
WLAN_SLP_
CLK
169 DO WLAN sleep clock
V
OL
max=0.45V
V
OH
min=1.35V
If unused, keep it
open.
SD Card Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
SD_VDD 46 PO
Power supply for
pull up voltage of
SD card bus
For 1.8V SD:
Vmax=1.9V
Vmin=1.75V
For 3.0V SD:
Vmax=3.05V
Vmin=2.75V
I
O
max=50mA
Either 1.8V or 3.0V is
supported by the
module
automatically.
Power supply of SD
card must be
provided by an
external power
supply.
SD_DATA0 49 IO
Secure digital
controller data bit 0
For1.8V SD:
V
OL
max=0.45V
V
OH
min=1.4V
V
IL
min=-0.3V
V
IL
max=0.58V
V
IH
min=1.3V
V
IH
max=2.0V
For 3.0V SD:
V
OL
max=0.35V
V
OH
min=2.15V
V
IL
min=-0.3V
V
IL
max=0.7V
V
IH
min=1.8V
V
IH
max=3.15V
If unused, keep it
open.
SD_DATA1 50 IO
Secure digital
controller data bit 1
If unused, keep it
open.
SD_DATA2 47 IO
Secure digital
controller data bit 2
If unused, keep it
open.
SD_DATA3 48 IO
Secure digital
controller data bit 3
If unused, keep it
open.
SD_CMD 51 DO
Command signal
for SD card
If unused, keep it
open.
SD_CLK 53 DO
Serial clock signal
for SD card
If unused, keep it
open.
SD_ DETECT 52 DI
SD card insertion
detection
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
If unused, keep it
open.
RF Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
ANT_DIV 127 AI
Diversity antenna
interface
50Ω impedance.
If unused, keep it
open.