u-blox SARA-G3 Series - Page 22

SARA-G3 series - System Integration Manual
UBX-13000995 - R06 Objective Specification System description
Page 22 of 218
Function
Pin Name
Module
Pin No
I/O
Description
Remarks
Digital
Audio
I2S_CLK
SARA-G350
36
O
I
2
S clock
1.8 V clock output for PCM / normal I
2
S
modes.
See section 1.10.21.10.2 for functional description.
See section 2.6.22.6.2 for external circuit
design-in.
I2S_RXD
SARA-G350
37
I
I
2
S receive data
1.8 V data input for PCM / normal I
2
S modes.
Internal active pull-down to GND.
See section 1.10.21.10.2 for functional description.
See section 2.6.22.6.2 for external circuit
design-in.
I2S_TXD
SARA-G350
35
O
I
2
S transmit data
1.8 V data output for PCM / normal I
2
S modes.
See section 1.10.21.10.2 for functional description.
See section 2.6.22.6.2 for external circuit
design-in.
I2S_WA
SARA-G350
34
O
I
2
S word
alignment
1.8 V word al. output for PCM / normal I
2
S
modes
See section 1.10.21.10.2 for functional description.
See section 2.6.22.6.2 for external circuit
design-in.
GPIO
GPIO1
SARA-G350
16
I/O
GPIO
1.8 V GPIO by default configured as pad
disabled.
See section 1.111.11 for functional description.
See section 2.72.7 for external circuit design-in.
GPIO2
SARA-G350
23
I/O
GPIO
1.8 V GPIO by default configured to provide the
custom GNSS supply enable function.
See section 1.111.11 for functional description.
See section 2.72.7 for external circuit design-in.
GPIO3
SARA-G350
24
I/O
GPIO
1.8 V GPIO by default configured to provide the
custom GNSS data ready function.
See section 1.111.11 for functional description.
See section 2.72.7 for external circuit design-in.
GPIO4
SARA-G350
25
I/O
GPIO
1.8 V GPIO by default configured to provide the
custom GNSS RTC sharing function.
See section 1.111.11 for functional description.
See section 2.72.7 for external circuit design-in.
Reserved
RSVD
All
33
N/A
RESERVED pin
This pin must be connected to ground.
See section 2.82.8
RSVD
All
17, 19
N/A
RESERVED pin
Leave unconnected.
See section 2.82.8
RSVD
SARA-G350
31
N/A
RESERVED pin
Internally not connected. Leave unconnected.
See section 2.82.8
RSVD
SARA-G300
SARA-G310
16, 23,
25-27,
34-37
N/A
RESERVED pin
Pad disabled. Leave unconnected.
See section 2.82.8
RSVD
SARA-G300
SARA-G310
44-49,
62
N/A
RESERVED pin
Leave unconnected.
See section 2.82.8
Table 3: SARA-G3 series modules pin definition, grouped by function