ADNS-2001 Просмотр технического описания (PDF) - HP => Agilent Technologies

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Компоненты Описание

производитель

ADNS-2001

Optical Mouse Sensor

HP => Agilent Technologies 

Typical USB Application using

Quadrature Output

18 or 24 MHz Operation

VDD

D–

D+

GND

SHLD

2.7 Ω

2N3906

1.5 MΩ

0.1 µF

4.7 µF

0.1 µF

3.3 V

REGULATOR

LP2950ACZ-3.3

1.0 µF

R1

7.5 KΩ

0.33 µF

6 MHz

9 12

CEXT VDD

5

P1.0

P0.1 2

13 D–

14 D+

CYPRESS

CY7C63000A-PC

P0.0 1

P0.2 3

P0.3 4

10 XTALIN

P1.1 16

P0.2 15

11 XTALOUT

P0.4 P0.5 P1.2 VSS VPP P0.7 P0.6

20 19 6 7 8 18 17

13 VDD5

14 VDD5

2 MODE/XA

7

VDD3 8

REFB

3 XB

XY_LED 6

4 YB

5 YA

ADNS OSC1 9

2001

15 NRESET

11

OSC2

GND GND PS2_C PS2_D

10 12 1 16

0.1 µF

SURFACE

HLMP-ED80

2N3904

24.00 MHz

24.00 MHz CERAMIC RESONATOR

SUCH AS:

AVX

KBR-24.00MSA or

MURATA CSA24.00MXZ040

BUTTONS L R M

PANASONIC

EVQ SERIES

ENCODER

INTERNAL

IMAGE

SENSOR

HDNS-2100

LENS

Notes:

1. Due to the Cypress implementation of USB suspend mode support, the NRESET pin of the ADNS-2001 must be reset using a line from the Cypress

chip. The reason for this is that the Cypress chip does not configure the port input pins until after it has received a bus reset from the USB port.

The unconfigured input port pins present a 16 KΩ pullup to VCC. If a cap is used on NRESET (pin 15), this pullup will result in the ADNS-2001

seeing a high on the MODE pin and powering up in the PS/2 mode.

2. The quadrature input pins of the Cypress part must be programmed to be Hi-Z, instead of the normal current pulldowns. This ensures that the

ADNS-2001 will be able to pull the quadrature lines high over all conditions of voltage and temperature.

3. 0.1 µF between pins 7 and 8 must be ceramic, and must be trace lengths less than 5 mm.

5

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