User guide

M80 EVB User Guide
M80_EVB_User_Guide_V1.2 - 34 -
3.8. Camera
M80 EVB provides two types of camera interface: analog camera and digital camera.
3.8.1. Analog camera
M80 EVB provides analog camera function. The analog camera of the M80 EVB should employ
an AK8856 IC which converts the analog video to digital video, also should add a boost converter
when there is no 12V voltage in the board. The following picture is the block diagram. For more
information about the detail design circuit, please refer to EVB circuit involving this part. The test
point of analog camera is shown as below.
Control Signal
33nF
39R
39R
Video input
Data Bus
27MHz
Boost
+12V
Ground
DC input
AK8856
Module
Figure 34: Block diagram of analog camera
Figure 35: Test points of analog camera
The following picture is the sample of analog camera. Customer can connect the analog camera to
EVB through contact pins. For more details about the analog camera, please contact the vendor of
the analog camera or Quectel.
Contact pins
Quectel
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