SL869x-V2 Family Product User Guide
1VV0301175 Rev. 9 Page 55 of 93 2021-07-15
Further details and sample code are available under NDA from Telit MT3333 I2C
Application Note.
Antenna RF Interface
9.5.1. RF-IN
The RF input (RF-IN) pin accepts GNSS signals in the range of 1561 MHz to 1606 MHz
(1573.42 to 1577.42 MHz for the SL869-V2S) at a level between -125 dBm and -165 dBm
into 50 Ohm impedance.
Note: The RF input pin is ESD sensitive.
Note: Max ± 3V DC can be applied to the RF input.
(SL869L-V2 and SL869L-V2S)
The SL869L-V2 and SL869L-V2S modules include a DC blocking capacitor.
Note: RX pins have a maximum input voltage of 3.4 V (which is lower
than the maximum for Vcc or Vbatt).
(SL869-V2 and SL869-V2S)
These modules include a preselect SAW filter. This allows them to work well with a
passive GNSS antenna. For improved performance, or if the antenna cannot be located
near the receiver, an active antenna (that is, an antenna with a built-in low noise
amplifier) can be used.
(SL869L-V2 and SL869L-V2S)
These modules include a DC blocking capacitor, additional LNA and a SAW filter. This
provides improved performance in poor signal conditions or with passive antennas. The
LNA precedes the SAW filter in the RF path.
To Next Page
Loading...
Need help?
General