Specifications
Table Of Contents
- Contents
- Tables
- Figures
- 1 Introduction
- 2 Interface Characteristics
- 2.1 Application Interface
- 2.2 RF Antenna Interface
- 2.3 GNSS Interface
- 2.4 Sample Application
- 3 Operating Characteristics
- 3.1 Operating Modes
- 3.2 Power Up/Power Down Scenarios
- 3.3 Power Saving
- 3.4 Power Supply
- 3.5 Operating Temperatures
- 3.6 Electrostatic Discharge
- 3.7 Blocking against RF on Interface Lines
- 3.8 Reliability Characteristics
- 4 Mechanical Dimensions, Mounting and Packaging
- 5 Regulatory and Type Approval Information
- 6 Document Information
- 7 Appendix
Cinterion
®
EXS62-W/EXS82-W Hardware Interface Description
2.1 Application Interface
61
t EXS62-W_EXS82-W_HID_v01.200ee 2022-09-07
Public/ Released
Page 26 of 144
2.1.3 USB Interface
EXSx2-W supports a USB 2.0 High Speed (480Mbit/s) device interface that is Full Speed
(12Mbit/s) compliant.
The external application is responsible for supplying the VUSB_IN line. This line is used for ca-
ble detection only. The USB part (driver and transceiver) is supplied by means of BATT+. This
is because EXSx2-W is designed as a self-powered device compliant with the “Universal Serial
Bus Specification Revision 2.0”
1
.
Figure 6: USB circuit
To properly connect the module's USB interface to the external application, a USB 2.0 compat-
ible connector and cable or hardware design is required. For more information on the USB re-
lated signals see Table 2. Furthermore, the USB modem driver distributed with EXSx2-W
needs to be installed.
While a USB connection is active, the module will never switch into any power saving modes.
Only if the USB interface is in Suspended state or Detached (i.e., VUSB_IN = 0) is the module
able to switch into SLEEP/SUSPEND mode thereby saving power. The USB host should be
able to bring its USB interface into the Suspended state as described in the “Universal Serial
Bus Specification Revision 2.0“
1
. For this functionality to work, the VUSB_IN line should always
be kept enabled. On incoming calls and other events EXSx2-W will then generate a Remote
Wakeup request to resume the USB host controller.
1. The specification is ready for download on https://www.usb.org/document-library/usb-20-specification
VBUS
DP
DN
VREG (3V075)
BATT+
USB_DP
2)
lin. reg.
GND
Module
Detection only
VUSB_IN
USB part
1)
1)
All serial (including R
S
) and pull-up resistors for data lines are implemented.
USB_DN
2)
2)
If the USB interface is operated in High Speed mode (480MHz), it is recommended to take
special care routing the data lines USB_DP and USB_DN. Application layout should in this
case implement a differential impedance of 90 ohms for proper signal integrity.
R
S
R
S
SMT