Receiver Interface Design; Usb Interface - Quectel EG915U-EU Manual

4.1.3. Receiver Interface Design

The receiver channel reference circuit is shown in the following figure:
Module

4.2. USB Interface

EG915U-EU provides one integrated Universal Serial Bus (USB) interface which complies with the USB
2.0 specification and supports full-speed (12 Mbps) and high-speed (480 Mbps) modes. The USB
interface can only serve as a slave device and is used for AT command communication, data transmission,
software debugging and firmware upgrade.
Table 12: Functions of the USB Interface
Functions
Data communication with external AP
AT command communication
Data transmission
GNSS NMEA output
Software debugging
Firmware upgrade
EG915U-EU_Hardware_Design
Differential
layout
SPK_P
SPK_N
Figure 17: Reference Design for Receiver Interface
LTE Standard Module Series
Close to Rec eiv er
33 pF
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33 pF
10 pF
0603
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