Handset Interface (J0802); Pcie Interface To Wlan/Ethernet Module (J0501/J0502) - Quectel 5G-M2 EVB User Manual

3.7.2.2. Handset Interface (J0802)

The audio interface J0802 is designed for handsets. A schematic of the interface is shown below.
Codec
ALC5686

3.8 PCIe Interface to WLAN/Ethernet Module (J0501/J0502)

The EVB supports a PCIe interface to connect with PC or WLAN/Ethernet module:
⚫
If S0301.4 (PCIE_SEL) signal is set to LOW level side, the PCIe interface of the M.2 module will be
connected to Type-B interface (J0401) for communication with a PC (Quectel internal use only).
⚫
If S0301.4 (PCIE_SEL) signal is set to HIGH level side, the PCIe interface of the M.2 module will be
connected to WLAN/Ethernet module (J0501/J0502).
Type-B Connector
J0501&J0502
WLAN/ETH
5G-M2_EVB_User_Guide
J0803
0R
MICP
MICN
SPKP
SPKN
BTB CON
Figure 16: Schematic of Handset Interface (J0802)
PCIe × 1
J0401
S0301.4 (PCIE_SEL) = LOW
S0301.4 (PCIE_SEL) = HIGH
PCIe x 1
Figure 17: PCIe Interface Block Diagram
AGND
10 pF 33 pF
10 pF 33 pF 33 pF 10 pF 33 pF
10 pF
AGND
PCIE_CLK_P
PCIE_CLK_M
PCIE_RX_P
PCIE_RX_M
U0301
PCIe Switch
PCIE_TX_P
PCIE_TX_M
5G Module Series
AGND
ESD ESD
J0802
4
1
3
2
ESD ESD
AGND
J0101
M.2 Connector
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