UMTS/HSPA/LTE Module Series
Mini PCIe EVB User Guide
Mini_PCIe_EVB_User_Guide Confidential / Released 15 / 30
J101
USB_DP
USB_DM
GND
Differential layout
USB_VBUS
USB_DP
USB_DM
GND
ESD Array
NM_2pF
USB_ID
Power supply for EVB
1
2
3
4
5
36
38
J302
Figure 7: Circuit of USB Interface
Table 4: Pin Assignment of USB Device Interface J302
3.3. Audio Interface
Quectel Mini PCIe module provides one digital audio interface (PCM). Mini PCIe EVB is equipped with an
external audio codec called ALC5616, and Figure 8 shows the audio codec circuit.
The Mini PCIe EVB provides several analog audio interfaces. J401 and J404 are used for module PCM
function which is connected through codec ALC5616. J402 and J403 are used for UC15 Mini PCIe analog
audio function only. This chapter gives a detailed introduction on these analog audio interfaces.
J302 Pin
Pin Name
Function
1
USB_VBUS
This pin is used to supply power for EVB
2
USB_DM
USB serial differential bus (minus)
3
USB_DP
USB serial differential bus (positive)
4
USB_ID
Not connected
5
GND
GND for USB interface
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