7

Figure 7. Schematic Diagram for 3-Button Scroll Wheel Cordless Mouse Dongle

Notes

1. The supply and ground paths should be laid out using a star methodology.

2. Level shifting is required to interface a 5V micro-controller to the ADNS-7530. If a 3V micro-controller is used, the 74VHC125 component shown

may be omitted

3. All grounds MUST be correctly separated into digital and analog grounds. The digital and analog ground lines MUST be reconnected as far away as

possible at either the negative terminal of the battery or at the USB connector.

PixArt Imaging Inc.

ADNS-7530 Integrated Molded Lead-Frame DIP Sensor

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PixArt Imaging Inc.