Fibocom L850-GL Series User Manual

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FIBOCOM L850-GL Series Hardware Guide Page 42 of 59
3.9 ANT Tunable Interface
The module supports ANT Tunable interfaces with two different control modes, i.e. MIPI interface and 3bit
GPO interface. Through cooperating with external antenna adapter switch via ANT Tunable, it can flexibly
configure the bands of LTE antenna to improve the antenna’s working efficiency and save space for the
antenna.
Pin Pin Name I/O Pin Description Type
56 RFFE_SCLK O
Tunable ANT control, MIPI Interface,
RFFE clock
1.8V
58 RFFE_SDATA O
Tunable ANT control, MIPI Interface,
RFFE data
1.8V
59 ANTCTL0 O
Tunable ANT control, GPO interface,
bit0
1.8V
61 ANTCTL1 O
Tunable ANT control, GPO interface,
bit1
1.8V
63 ANTCTL2 O
Tunable ANT control, GPO interface,
bit2
1.8V
Note
：
The MIPI signal is limited to unidirectional function only.
3.10 Configuration Interface
The L850 module provides four pins to define WWAN-PCIe, USB3.1 type M.2 module:
Pin Pin Name I/O Reset Value Pin Description Type
1 CONFIG_3 O
-
NC
-
21 CONFIG_0 O
L
Internally connected to GND
-
69 CONFIG_1 O
L
Internally connected to GND
-
75 CONFIG_2 O
L
Internally connected to GND
-
The M.2 module configuration is shown in the following table:

Fibocom L850-GL Series Specifications

General

Category	GSM/GPRS Modules
Model	L850-GL
Form Factor	M.2
Operating Temperature	-10°C to +55°C
Storage Temperature	-40°C to +85°C
GSM Bands	850/900/1800/1900MHz
GNSS	GPS, GLONASS, BeiDou, Galileo
Interface	USB 2.0, UART, PCM, I2C, GPIO
Operating Voltage	3.135V to 4.4V
LTE FDD	B1, B2, B3, B4, B5, B7, B8, B12, B13, B17, B18, B19, B20, B25, B26, B28, B29, B30, B66
LTE TDD	B38/B39/B40/B41
WCDMA	B1, B2, B4, B5, B8
AT Command Set	3GPP TS 27.007
Certifications	CE, FCC, GCF, PTCRB