Product Info

LTE Standard Module Series
EC25 Series Hardware Design
EC25_Series_Hardware_Design 35 / 134
SGMII_
MCLK
122
DO
SGMII MDIO
(Management Data
Input/Output) clock
For 1.8 V:
V
OL
max = 0.45 V
V
OH
min = 1.4 V
For 2.85 V:
V
OL
max = 0.35 V
V
OH
min = 2.14 V
1.8/2.85 V power
domain.
If unused, keep it
open.
SGMII_TX_M
123
AO
SGMII transmission
- minus
Connect with a 0.1 μF
capacitor, and is
close to the PHY side.
If unused, keep it
open.
SGMII_TX_P
124
AO
SGMII transmission
- plus
Connect with a 0.1 μF
capacitor, and is
close to the PHY side.
If unused, keep it
open.
SGMII_RX_P
125
AI
SGMII receiving
- plus
Connect with a 0.1 μF
capacitor, and is
close to EC25 series
module.
If unused, keep it
open.
SGMII_RX_M
126
AI
SGMII receiving
- minus
Connect with a 0.1 μF
capacitor, and is
close to EC25 series
module.
If unused, keep it
open.
USIM2_VDD
128
PO
SGMII MDIO pull-up
power source
Configurable power
source.
1.8/2.85 V power
domain.
If unused, keep it
open.
Wireless Connectivity Interfaces
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
SDC1_
DATA3
129
IO
WLAN SDIO data
bus D3
V
OL
max = 0.45 V
V
OH
min = 1.35 V
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
1.8 V power domain.
If unused, keep it
open.