ADNB-2012 datasheet(10/12 Pages) HP

10 / 12 page

Quadrature Output Mode Waveform

@ 24 MHz

The 2 channel quadrature outputs

are 5 V CMOS outputs. The Delta

X count is used to generate the

XA and XB quadrature signals.

The Delta Y count is used to gen-

erate the YA and YB quadrature

signals. Delta X, Y counts are in

the range of +7 to –7 counts of

motion and new Delta X, Y values

are generated at a rate of 2000

Hz. The quadrature signals can

change at a maximum rate of

16.7 kHz.

Example: Quadrature Output Waveform (+X motion).

AC Electrical Specifications

Electrical Characteristics over recommended operating conditions. Typical values at 25˚C, VDD3 = 3.3, VDD5 = 5.0,

A = 2.4 mm, CLK = 24.00 MHz.

Parameter

Symbol

Min.

Typ.

Max.

Units

Notes

PS/2 Baud Rate

Fps2

13.3

16.7

Kbaud

PS/2 Data Transition Delay

7.5

18.8

µs

See PS/2 timing diagrams

after PS/2_C Rising Edge

PS/2 Motion Report Rates

133

reports/sec

See PS/2 command settings

Motion Scale Factor

400

counts/inch

Power Up Delay

100

CRESET = 0.22 µF

60 µs

ADNB-2012 Datasheet(PDF) 10 Page - Agilent(Hewlett-Packard)

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