Interface Applications; Power Interfaces (J202/J301/J401) - Quectel Wi-Fi-M.2 EVB User Manual

3

Interface Applications

This chapter describes the hardware interfaces of Wi-Fi-M.2 EVB as follows:
⚫
Power Interfaces
⚫
Power Switch
⚫
PCIe Interfaces
⚫
UART Interface
⚫
Test Points
⚫
RF Interfaces
⚫
Status Indication LEDs

3.1. Power Interfaces (J202/J301/J401)

The Wi-Fi-M.2 EVB can be powered by PCIe Goldfinger (J301), USB Micro-B connector (J401) or DC
power supply interface (J202).
The following figure show the simplified power supply schematic of Wi-Fi-M.2 EVB.
J301
PCIe
Goldfinger
J401
U201
5 V
USB
DCDC
MP1653H
Micro-B
DC_5V
J202
Wi-Fi-M.2_EVB_User_Guide
J103
3.3 V
3.3 V
PCIe M.2
Figure 3: Power Supply for Wi-Fi-M.2 EVB
Wi-Fi&Bluetooth Module Series
U103
0.95 V
DCDC
Module VDD_CORE_VL
MP1603GTF-Z
U102
1.95 V
LDO
Module VDD_CORE_VH
SGM2205
U101
1.8 V
LDO
SGM2205
U104
1.8 V
1.35 V
LDO
SGM2037
Module VDD_RF
Module VDD_IO
Module VDD_CORE_VM
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