Cinterion
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MV31-W Hardware Interface Description
3.2 Characteristics
75
t
MV31-W_HID_v01.009a
2022-04-27
Public / Preliminary
Page 29 of 76
3.2.3
Tunable Antenna Interface
3.2.3.1
Antenna Control
MV31-W provides a MIPI interface (MIPI_DATA/RFFE2_DATA and MIPI_CLK/RFFE2_CLK)
for external antenna tuner application to allow the implementation of antenna tuner solutions,
e.g. with QAT3555 antenna impedance tuner (see
).
Figure 11:
Sample Antenna Tuner with QAT3555 for one antenna path
3.2.3.2
ANT_TUNER_CONFIG
The ANT_TUNER_CONFIG pin of the MV31-W has the possibility to optimize the FR1 low
band performance. The configuration is mainly for mobile devices with integrated antennas.
Depending on the handling of the device the host controller can use this pin to trigger the 2 pre
configuired modes.
Factors as the antennas, housing, size of the device, material and mobile handling e.g. tablet
or notebook are influencing the performance.
Table 5:
ANT_TUNER_CONFIG States
Signal State
Scenario
Low
For notebooks (Tuner Mode 0)
High
For tablets (Tuner Mode 1)
