Huawei ME909u-521 - Tunable Antenna Control

HUAWEI ME909u-521 LTE LGA Module
Hardware Guide
Description of the Application Interfaces
Issue 05 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
47
Table 3-14 NC pins
Pin No.
Pin
Name
Pad
Type
Description
Parameter
Min.
(V)
Typ.
(V)
Max.
(V)
Comments
25, 26, 31, 33,
37–41, 82–84,
94–99, 103,
117–120
NC
-
Not connected,
please keep this pin
open
-
-
-
-
-
3.14 Tunable Antenna Control
The module provides tunable antenna control pins. The firmware with this feature is in
plan. The mapping of each band to ANT_TUNE outputs is configurable.
Table 3-15 List of tunable antenna control pins
Pin
No.
Pin Name
Pad
Type
Description
Parameter
Min.
(V)
Typ.
(V)
Max.
(V)
Comments
21
ANT_TUNE0
O
Tunable antenna
control signal, bit 0
V
OH
1.35
1.8
1.8
-
V
OL
0
-
0.45
-
22
ANT_TUNE1
O
Tunable antenna
control signal, bit 1
V
OH
1.35
1.8
1.85
-
V
OL
0
-
0.45
-
23
ANT_TUNE2
O
Tunable antenna
control signal, bit 2
V
OH
1.35
1.8
1.8
-
V
OL
0
-
0.45
-
24
ANT_TUNE3
O
Tunable antenna
control signal, bit 3
V
OH
1.35
1.8
1.8
-
V
OL
0
-
0.45
-