Ublox SARA-G450 Series User Manual

SARA-G450 - System integration manual
UBX-18046432 - R08 System description Page 12 of 143
C1-Public
Function
Pin Name
Pin No
I/O
Description
Remarks
SPK_P
44
O
Differential analog
audio output
(positive)
Differential analog audio signal output (positive)
shared for all the analog downlink path modes:
earpiece, headset, loudspeaker mode.
See section 1.10.1 for functional description.
See section 2.7.1 for external circuit design-in.
SPK_N
45
O
Differential analog
audio output
(negative)
Differential analog audio signal output (negative)
shared for all the analog downlink path modes:
earpiece, headset, loudspeaker mode.
See section 1.10.1 for functional description.
See section 2.7.1 for external circuit design-in.
Digital
Audio
I2S_CLK
36
O
I2S clock
Not supported.
I2S_RXD
37
I
I2S receive data
Not supported.
I2S_TXD
35
O
I2S transmit data
Not supported.
I2S_WA
34
O
I2S word alignment
Not supported.
GPIO
GPIO1
16
I/O
GPIO
It operates at V_INT voltage level.
See sections 1.11 for functional description.
See sections 2.8 for external circuit design-in.
GPIO2
23
I/O
GPIO
It operates at V_INT voltage level.
See sections 1.11 for functional description.
See sections 2.8 for external circuit design-in.
GPIO3
24
I/O
GPIO
It operates at V_INT voltage level.
See sections 1.11 for functional description.
See sections 2.8 for external circuit design-in.
GPIO4
25
I/O
GPIO
It operates at V_INT voltage level.
See sections 1.11 for functional description.
See sections 2.8 for external circuit design-in.
Reserved
RSVD
33
N/A
RESERVED pin
This pin can be connected to GND or left unconnected.
See sections 1.12 and 2.9.
RSVD
31
N/A
RESERVED pin
Internally not connected. Leave unconnected.
See sections 1.12 and 2.9.
Table 3: SARA-G450 modules pin definition, grouped by function

Ublox SARA-G450 Series Specifications

General

Brand	Ublox
Model	SARA-G450 Series
Category	GSM/GPRS Modules
Language	English