LTE Standard Module Series
I2C_SDA
42
OD
I2C serial data
external codec.
An external 1.8
V pull-up
resistor is
needed.
PCM Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
PCM_SYNC
26
DIO
PCM data frame sync
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
V
IH
max = 2.0 V
V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power
domain.
In master mode,
it serves as an
output signal.
In slave mode, it
is used as an
input signal.
If unused, keep
it open.
PCM_CLK
27
DIO
PCM clock
PCM_DIN
24
DI
PCM data input
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
V
IH
max = 2.0 V
1.8 V power
domain.
If unused, keep
it open.
PCM_DOUT
25
DO
PCM data output
V
OL
max = 0.45 V
V
OH
min = 1.35 V
RF Antenna Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
ANT_DRX
35
AI
Diversity antenna
interface
50
Ω
impedance.
ANT_MAIN
49
AIO
Main antenna interface
ADC Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
ADC0
45
AI
General-purpose ADC
interface
Voltage Range:
0 V
–
VBAT_BB
If unused, keep
it open.
ADC1
44
AI
Other Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
