Data Sheet
Table Of Contents
- Document Information
- Contents
- 1 Functional description
- 2 Interfaces
- 3 Pin definition
- 4 Electrical specifications
- 4.1 Absolute maximum rating
- 4.2 Operating conditions
- 4.2.1 Operating temperature range
- 4.2.2 Thermal parameters
- 4.2.3 Supply/power pins
- 4.2.4 Current consumption
- 4.2.5 LTE RF characteristics
- 4.2.6 2G RF characteristics
- 4.2.7 ANT_DET pin characteristics
- 4.2.8 PWR_ON pin
- 4.2.9 RESET_N pin
- 4.2.10 SIM pins
- 4.2.11 USB pins
- 4.2.12 Generic Digital Interfaces pins
- 4.2.13 DDC (I2C) pins
- 4.3 Parameters for ATEX applications
- 5 Mechanical specifications
- 6 Qualification and approvals
- 7 Product handling & soldering
- 8 Labeling and ordering information
- Appendix
- A Glossary
- Related documents
- Revision history
- Contact
SARA-R4/N4 series - Data Sheet
UBX-16024152 - R16 Interfaces Page 14 of 39
2.6 Audio
☞ Audio is not supported by the “00”, “01”, “02” and “52” product versions.
SARA-R4/N4 series modules support VoLTE (Voice over LTE Cat M1 radio bearer) for providing audio
services.
SARA-R4/N4 series modules include an I
2
S digital audio interface to transfer digital audio data
to/from an external compatible audio device.
The digital audio interface can be made available as an alternative function, in a mutually exclusive
way, over the SPI interface pins (I2S_WA / SPI_MOSI, I2S_RXD / SPI_MISO, I2S_CLK / SPI_CLK,
I2S_TXD / SPI_CS).
2.7 GPIO
SARA-R4/N4 series modules include pins that can be configured as general purpose input/output or
to provide custom functions as summarized in Table 4 (for further details, see the SARA-R4/N4 series
System Integration Manual [2] and the SARA-R4/N4 series AT Commands Manual [1]).
Function
Description
Default GPIO
Configurable GPIOs
Network status
indication
Network status: registered / data transmission, no
service
--
GPIO1
GNSS supply enable
13
Enable/disable the supply of a u-blox GNSS receiver
connected to the cellular module by the DDC (I
2
C)
interface
--
GPIO2
GNSS data ready
13
Sense when a u-blox GNSS receiver connected to the
module is ready for sending data by the DDC (I
2
C)
interface
--
GPIO3
SIM card detection
SIM card physical presence detection
--
GPIO5
Ring Indicator
14
Events indicator
--
RI
Module status
indication
Module switched off or in PSM low power deep sleep
mode, versus active or connected mode
--
GPIO1, GPIO2, GPIO3,
GPIO4, GPIO5, GPIO6
Last gasp
14
Input to trigger last gasp notification
--
GPIO3, GPIO4, GPIO6
General purpose input
Input to sense high or low digital level
--
GPIO1, GPIO2, GPIO3,
GPIO4, GPIO5, GPIO6
General purpose
output
Output to set the high or the low digital level
--
GPIO1, GPIO2, GPIO3,
GPIO4, GPIO6
Pin disabled
Tri-state with an internal active pull-down enabled
GPIO1, GPIO2, GPIO3,
GPIO4, GPIO5, GPIO6,
RI
GPIO1, GPIO2, GPIO3,
GPIO4, GPIO5, GPIO6,
RI
Table 4: GPIO custom functions configuration
13
Not supported by “00” and “01” product versions
14
Not supported by “00”, “01” and SARA-R410M-02B-00 product versions