TOBY-L1 and MPCI-L1 series - System Integration Manual
UBX-13001482 - R04
Advance Information
Design-in
Page 36 of 90
2
Design-in
2.1
Overview
For an optimal integration of TOBY-L1 and MPCI-L1 series modules in the final application board, follow the
design guidelines stated in this chapter.
Every application circuit must be properly designed to guarantee the correct functionality of the related interface,
however a number of points require high attention during the design of the application device.
The following list provides a rank of importance in the application design, starting from the highest relevance:
1.
Module antenna connection:
ANT1
and
ANT2
ports.
Antenna circuit directly affects the RF compliance of the device integrating TOBY-L1 and MPCI-L1 series
modules with applicable certification schemes. Very carefully follow the suggestions provided in chapter 2.4
for schematic and layout design.
2.
Module supply:
VCC
or
3.3Vaux
, and
GND
pins.
The supply circuit affects the RF compliance of the device integrating TOBY-L1 and MPCI-L1 series modules
with applicable required certification schemes as well as antenna circuit design. Very carefully follow the
suggestions provided in the chapter 2.2.1 for schematic and layout design.
3.
USB interface:
USB_D+
,
USB_D-
pins.
Accurate design is required to guarantee USB 2.0 high-speed interface functionality. Carefully follow the
suggestions provided in the chapter 2.6.1 for schematic and layout design.
4.
SIM interface:
VSIM
,
SIM_CLK
,
SIM_IO
,
SIM_RST
or
UIM_PWR
,
UIM_DATA
,
UIM_CLK
,
UIM_RESET
pins.
Accurate design is required to guarantee SIM card functionality reducing the risk of RF coupling. Carefully
follow the suggestions provided in the chapter 2.5 for schematic and layout design.
5.
System functions:
RESET_N
or
PERST#
,
PWR_ON
pins.
Accurate design is required to guarantee that the voltage level is well defined during operation. Carefully
follow the suggestions provided in the chapter 2.3 for schematic and layout design.
6.
Other supplies: the
V_BCKP
supply output, and the
V_INT
digital interfaces supply output.
Accurate design is required to guarantee proper functionality. Follow the suggestions provided in the
chapters 2.2.2 and 2.2.3 for schematic and layout design.
7.
Other pins: GPIOs, Mini PCIe specific signals and Reserved pins.
Accurate design is required to guarantee proper functionality. Follow the suggestions provided in sections
2.7, 2.8 and 2.9 for schematic and layout design.
