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PixArt Imaging Inc.

PMT9123 Product Datasheet

Right Angle Optical Track Sensor

PixArt Imaging Inc. http://www.pixart.com

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Version 1.02 |12 Jul 2016 | 21001EN

1.3

Signal Description

Figure 2. Pin Configuration

Table 1. PMT9123 Signal Pins Description

Pin No.

Signal Name

Type

Description

Functional Group:

Power Supplies

3

VREG

Power

Internal voltage output

4

VDD

Power

Supply voltage (1.8 V)

27

LED+

Power

Supply to LED anode

1

GND

Ground

Ground

11

GND

Ground

Ground

21

GND

Ground

Ground

22

GND

Ground

Ground

28

GND

Ground

Ground

24

LED-

Ground

LED cathode, must connect to XY_LED

25

LED-

Ground

LED cathode, must connect to XY_LED

26

LED-

Ground

LED cathode, must connect to XY_LED

Functional Group:

Control Interface

7

SCL

Input

Serial data clock

20

SDA

Input / Output Serial data