Quectel UMTS&LTE EVB - Handset Interface (J602)

UMTS/HSPA/LTE Module Series
UMTS&LTE EVB User Guide
UMTS&LTE_EVB_User_Guide Confidential / Released 25 / 44
Table 5: Pin Definition of J601
The following figure shows the sketch design of audio plug which suits for the audio jack on UMTS&LTE
EVB.
2
1
MIC
GND
SW
SPK_R
SPK_L
3
4
32Ω
32Ω
Figure 17: Sketch of Audio Plug
4.5.2.3. Handset Interface (J602)
Audio interface J602 is designed for handsets. The names of corresponding pins on EVB are shown in
Figure 19. A reference circuit design for handset interfaces J602 is shown below.
Pin No.
Pin Name
Description
1
MIC
Microphone input
2
AGND
Dedicated GND for audio
3
SPK_R
Right channel of stereo audio output
4
SPK_L
Left channel of stereo audio output
5, 6
NC
Not connected
Quectel
Confidential