User's Manual

MeiG hardware design guide
15
CAM_I2C_SDA
23
I/O
I2Csignal,CAMdedicated
CAM_I2C_SCL
24
I/O
I2Csignal,CAMdedicated
VREG_L6_1P8
7
O
1.8V IOVDD
VREG_L17_2P85
8
O
2.8V AVDD
VREG_L8_2P9
9
O
2.9V AFVDD（powering the focus motor）
VREG_L2_1P2
6
O
1.2V DVDD
If the user designs to use the CAMERA module with autofocus function, please note that the I2C of the
module cannot be directly connected to the AF device. The I2C of the AF device should be connected
to the driver chip of CAMERA, and the correct connection is as follows:
Figure 4.18: Correct CAMERA connection diagram
The MIPI interface has a high rate. The user should control the impedance by 100 ohms during the
routing. Please pay attention to the length of the trace. It is not recommended to add a small capacitor
on the MIPI signal line. This may affect the rising edge of the MIPI data. This in turn causes the MIPI
data to be invalid.