MicroTouch Micro Touch Capacitive Controller MT3000, Справочное руководство, Страница: 12 / 64

MT3000 Capacitive Controller Reference Guide 12
Mounting the MT3000 Controller
You can easily mount the MT3000 controller using standard 4-40 machine
screws and washers through the two existing mounting holes. All the
components and the connectors are mounted on the top side of the PC board
to reduce the overall profile and to minimize clearance requirements.
Figure 3 shows the connector locations and identifies which of the
mounting holes requires grounding.
Figure 3 Connector Locations and Mounting Holes
When you mount the MT3000 controller, remember the following important
rules:
•
Always mount the controller internally. You can orient the components
up or down, but turn the board so that the flex cable is not twisted 180
°
.
If possible, mount the controller with the component side visible so you
can monitor the status of the LED.
•
Ground the controller. Mount it to a metal chassis surface if possible. If
you must mount it to a non-metal surface, be sure to attach a ground
wire as described in the last paragraph of this section.
•
Maintain a clearance of at least 1/8 inch from the highest projection on
the controller to the chassis.
•
Try to find a mounting area that is away from heat sources and EMI
noise generators such as power supplies and backlight (or CRT) drive
electronics.
+
LED1
JP1
JP
2
JP4
0.122" (4-40 screw grounding required)
0.122" (4-40 screw no-grounding required)
0.929"
[23.60mm]
0.400"
[10.16mm]
0.836"
[21.23mm]
0.336"
[8.53mm]
0.200"
[5.08mm]
0.080"
[2.03mm]