Reference Design; Reference Schematic Design For Using Uart And I2C; Reference Schematic Design For Uart - Sierra Wireless AirPrime XS1110 Product Technical Specification

4: Reference Design

This section provides reference schematic designs for best performance.
Reference Schematic Design for Using
UART and I2C
The XS1110 provides several interfaces to process GNSS NMEA data (specified by
firmware):
1. UART – this interface can support NMEA output; refer to
2. I2C – this interface can support NMEA output; refer to

Reference Schematic Design for UART

Figure 4-1: Reference Schematic Design for UART
Notes:
1. Ferrite bead L1 is added for power noise reduction. Use one with an equivalent
2. Place C1 and C2 decoupling capacitors as close to the module as possible.
3. Damping resistors R1 and R2 can be modified based on system application for
Rev 4.0 Jul.20
impedance (600 at 100MHz; IDC 200mA).
Ω
EMI.
34
Figure 4-1.
Figure 4-2.
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