TOBY-L1 and MPCI-L1 series - System Integration Manual
UBX-13001482 - R04
Advance Information
Design-in
Page 64 of 90
2.9
Reserved pins (RSVD)
Pins reserved for future use, marked as
RSVD
, are not available on MPCI-L1 series.
TOBY-L1 series modules have pins reserved for future use. All the
RSVD
pins are to be left unconnected on the
application board.
It is recommended to provide direct access to the
RSVD
pins 16, 17 and 49 on the application board by
means of an accessible test point directly connected to the related pin.
TOBY-L1 series
16
RSVD
RSVD
Test point
17
RSVD
49
RSVD
Test point
Test point
Figure 39: Application circuit for the reserved pins (RSVD)
2.10
Module placement
An optimized placement allows a minimum length RF line and closer path from DC source for
VCC / 3.3aux
.
Make sure that the module, RF and analog parts / circuits are clearly separated from any possible source of
radiated energy, including digital circuits that can radiate some digital frequency harmonics, which can produce
Electro-Magnetic Interference affecting module, RF and analog parts / circuits’ performance or implement proper
countermeasures to avoid any possible Electro-Magnetic Compatibility issue.
Make sure that the module, RF and analog parts / circuits, high speed digital circuits are clearly separated from
any sensitive part / circuit which may be affected by Electro-Magnetic Interference or employ countermeasures to
avoid any possible Electro-Magnetic Compatibility issue.
Provide enough clearance between the module and any external part.
The heat dissipation during transmission at maximum power can raise the temperature of the module and
its environment, as the application board locations near and below the TOBY-L1 and MPCI-L1 series
modules: avoid placing temperature sensitive devices close to the module.
