UMTS/HSPA+/LTE Standard Module Series
Mini PCIe-C EVB User Guide
Mini_PCIe-C_EVB_User_Guide 18 / 39
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 10: Reference Circuit Design of the USB Interface
Table 4: Pin Definition of J302
4.3. Audio Interfaces (J401
1)
/J404
1)
/J402/J403)
Quectel Mini PCIe-C or EP200F module provides one analog audio interface (PCM). The Mini PCIe-C
EVB is equipped with an external audio codec named TLV320AIC1106, and the following figure shows a
reference circuit design of audio codec.
The Mini PCIe-C EVB provides four audio interfaces J401, J404, J402 and J403. J401
and J404 are used
to test the PCM function of Mini PCIe-C or EP200F module by connecting to codec TLV320AIC1106, and
J402 and J403 are used to test the analog audio function of Mini PCIe-C and EP200F modules. The
following sub-chapters give detailed introduction on these audio interfaces.
Pin No.
Pin Name
Function
1
USB_VBUS
Used for EVB power supply
2
USB_DM
USB serial differential bus (-)
3
USB_DP
USB serial differential bus (+)
4
USB_ID
Not connected
5
GND
GND for USB interface
