Product Info

LTE Module Series
AG35-Quecopen
Hardware Design
AG35-QuecOpen_Hardware_Design 29 / 137
PCM_CLK 67 IO PCM clock
V
OL
max=0.45V
V
OH
min=1.35V
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
In master mode, it is
an output signal. In
slave mode, it is an
input signal.
If unused, keep it
open.
PCM_OUT 68 DO PCM data output
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep it
open.
MCLK 152 DO Output 12.288MHZ
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep it
open.
I2C1 Interface (for Codec Configuration by Default)
Pin Name Pin No. I/O Description DC Characteristics Comment
I2C1_SDA 42 IO
I2C1 serial data.
Used for external
codec.
V
OL
max=0.45V
V
OH
min=1.35V
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
External pull-up
resistor is required.
1.8V only.
If unused, keep it
open.
I2C1_SCL 43 DO
I2C1 serial clock.
Used for external
codec.
V
OL
max=0.45V
V
OH
min=1.35V
External pull-up
resistor is required.
1.8V only.
If unused, keep it
open.
I2C2 Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
I2C2_SDA 73 IO I2C2 serial data
V
OL
max=0.45V
V
OH
min=1.35V
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
External pull-up
resistor is required.
1.8V only. If unused,
keep it open.
I2C2_SCL 74 DO I2C2 serial clock
V
OL
max=0.45V
V
OH
min=1.35V
External pull-up
resistor is required.
1.8V only. If unused,
keep it open.
SDIO2 Interface (for eMMC & SD Card)