Telit Wireless Solutions LE910C series Hw Design Guide

LE910Cx mPCIe Hardware Design Guide
1VV0301510 Rev. 13 Page 40 of 73 2021-07-07
Not Subject to NDA
Parameter
Min
Max
PERST_N Input high
2.0V
3.6V
PERST_N Input low
- 0.5V
0.8V
Table 17: PERST_N Signal
Hardware Interfaces
Following table below summarize the hardware interfaces for LE910Cx-mPCIe:
Interface
LE910Cx-mPCIe
USB
USB2.0
I2C
For sensors, audio control
UART
HS-UART (up to 4 Mbps)
Audio I/F
I2S/PCM
USIM
Dual voltage (1.8V/2.85V)
Antenna ports
2 for Cellular, 1 for GNSS
Table 18: Hardware Interfaces for LE910Cx-mPCIe
6.6.1. USB Port
The LE910Cx-mPCIe module includes a Universal Serial Bus (USB) transceiver, which
operates at USB high-speed (480 Mbits/sec). It can also operate with USB full-speed
hosts (12 Mbits/sec).
It is compliant with the USB 2.0 specification and can be used for control and data
transfers as well as for diagnostic monitoring and firmware update.
The USB port is typically the main interface between the LE910Cx-mPCIe module and
OEM hardware.
Note:
The USB_D+ and USB_D- signals have a clock rate of 480 MHz.
The signal traces must be routed carefully. Minimize trace lengths,
number of vias, and capacitive loading. The impedance value should
be as close as possible to 90 Ohms differential.
Table below lists the USB interface signals:
Signal
Pin
Usage
USB_D-
36
Minus (-) line of the differential, bi-directional USB signal to/from the
peripheral device

Telit Wireless Solutions LE910C series Specifications

General

Brand	Telit Wireless Solutions
Model	LE910C series
Category	Wireless modules
Language	English