16

Buttons

button connection is described in Figure 19

R7

30 k

R10

15 k

R11

6.8 k

BL

BR

BM

SW

Pin

Note: Use only 1%

tolerance resistors

Figure 19. Button connections

Debounce Algorithm

 Button inputs B1, B2, and B3 are sampled every 6ms.

 Two consecutive low values create a button press

event.

 Three consecutive high values create a button release

event.

Configuration after Power up (Data Values)

Signal

Function

State from Figure 9-1 of USB spec:

Powered or Default Address or Configured

State from Figure 9-1 of USB spec:

Suspended from Any Other State

SW

Output voltage at 1.16 V (Typ)

Output voltage at 2.7 V (Typ)

D-

USB I/O

Hi-Z Input

D+

USB I/O

Hi-Z Input

XY_LED

Always ON / Pulsing

Pulled HIGH (OFF)

ZB

Hi-Z Input

Output HIGH

ZA

Hi-Z Input

Output HIGH

Typical Performance Characteristics

Parameter

Symbol

Minimum

Typical

Maximum

Units

Notes

Path Error

(Deviation)

0.5

%

Average path error as percent of total 2.5” travel on

various standard surfaces

The following graphs are the typical performance of the sensor, assembled as shown in the 2D assembly drawing with

trim lens, clip, and LED.

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PixArt Imaging Inc.

PixArt Imaging Inc.

ADNS-2710 Single Chip USB Optical Mouse Sensor