LTE-A Module Series
EG060V-EA Hardware Design
EG060V-EA_Hardware_Design 51 / 82
In order to enhance the module’s reliability and usability in applications, please follow the criteria below in
PCIe interface circuit design:
⚫ Keep PCIe data and control signals away from sensitive circuits and signals, such as RF, audio, and
19.2 MHz clock signals.
⚫ A capacitance should be added in series on Tx/Rx traces to remove any DC bias.
⚫ Keep the maximum trace length less than 300 mm.
⚫ The length difference of the Tx or Rx differential pair of PCle traces should be less than 0.7 mm.
⚫ The differential impedance of PCIe data traces should be 100 Ω ±10 %.
⚫ PCIe data traces must not be routed under components or crossing other traces.
“*” means under development.
3.18. WLAN Control Interface*
EG060V-EA provides a low power PCIe interface* and a control interface for WLAN design. The following
table shows the pin definition of WLAN control interface.
Table 22: Pin Definition of WLAN Control Interface
In master mode, it is an output
signal.
In slave mode, it is an input signal.
If unused, keep it open.
In master mode, it is an input signal.
In slave mode, it is an output signal.
If unused, keep it open.
WLAN power supply enable control
Wake up the host by an external
Wi-Fi module
WLAN function enable control
LTE&WLAN coexistence receive