Quectel EC25 series User Manual

The followi
n
codec desi
g
Table 14:
P
Pin Name
PCM_IN
E
PC
M
PC
M
PC
M
PC
PCM
_
PCM_
PCM
_
PCM
_
n
g table sh
o
g
n.
P
in Definiti
o
Pin
N
24
E
C25-A_U
s
M
_CLK
M
_SYNC
M
_OUT
M
_IN
_
CLK
SYNC
_
OUT
_
IN
o
ws the pin
o
n of PCM
a
N
o. I/O
DI
s
e
r
_Manual
C
MS B
12
MS B
Figure 22:
MS B
MS B
12
Figure 23:
A
definition
o
a
nd I2C Int
e
Descri
PCM d
C
onfidenti
a
LS
125us
LS
Primary M
o
125us
A
uxiliary
M
o
f PCM an
d
e
rface
ption
ata input
a
l / Release
B
256255
B
o
de Timin
g
L
1
15
L
M
ode Timin
g
d
I2C interf
a
d 39 /
6
MS B
MS B
g
L
SB
1
6
L
SB
g
a
ce which c
Commen
1.8V pow
e
L
EC25-AU
6
9
an be appli
t
e
r domain
L
TE Modul
e
ser Manu
a
ed on audi
o
e
a
l
o

Quectel EC25 series Specifications

General

GNSS	GPS/GLONASS/BeiDou/Galileo/QZSS
Operating Temperature	-40°C to +85°C
Storage Temperature	-45°C to +90°C
Form Factor	LCC
Dimensions	29.0mm × 32.0mm × 2.4mm
Category	Cellular Module
LTE FDD	B1/B3/B5/B7/B8/B20
LTE TDD	B38/B40/B41
WCDMA	B1/B5/B8
Interfaces	USB 2.0, UART, PCM, I2C
Operating Voltage	3.3V to 4.3V
SIM Interface	1.8V/3V
Antenna Interface	Main and diversity antenna
Certifications	CE, FCC, PTCRB, GCF, IC, RCM
GSM	850/900/1800/1900 MHz