SL871 Family Product User Guide
1VV0301170 Rev. 9
Page 41 of 89
2021-07-15
Not Subject to NDA
Pin
Name
Type
Description
Notes
1
GND
GND
Ground
2
TX
O
TX0. See 9.4.2 UART Port Operation
3
RX
I
RX0. See 9.4.2 UART Port Operation
4
1PPS
O
Time mark Pulse, (1PPS). See 9.3.4.1 1PPS
5
NC
NC
No Connection
6
VBATT
PWR
Backup Voltage Supply. See 9.2 DC Power Supply
7
NC
NC
Can be connected to VCC (for compatibility) or left unconnected
8
VCC
PWR
Supply Voltage. See 9.2 DC Power Supply
9
RESET-N
I
RESET-N (Active Low, open drain). May be left unconnected.
See 9.3.3.1 RESET-N
10
GND
GND
Ground
11
RF-IN
I
GNSS RF Input. 50
Ω
. See 9.5 Antenna RF Interface
Max DC voltage: ± 3.0 V (Gen 2)
1
12
GND
GND
Ground
13
ANT-ON
O
Antenna On. See 9.3.2.2 ANT-ON (output)
14
VCC-RF
PWR
Output Voltage for a bias-T (max 50 mA).
See 9.3.2.1 VCC-RF (Active Antenna Supply Voltage) (SL871 and
SL871-S only)
15
NC
NC
No Connection
16
TX1
O
TX1 See 9.4.2 UART Port Operation.
17
RX1
I
RX1. See 9.4.2 UART Port Operation.
18
NC
NC
No Connection
Note 1. DC Blocking capacitor has been added in SL871L-S.
All GND pins must be connected to ground.
Table 18: SL871-S & SL871L-S Pin-out Table
