ADNS-2051 Ver la hoja de datos (PDF) - Avago Technologies

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componentes Descripción

Lista de partido

ADNS-2051

Optical Mouse Sensor

Avago Technologies 

SERIAL PORT

SCLK

SDIO

XA

XB

QUADRATURE

OUTPUTS

YA

YB

R_BIN

LED

XY_LED

SERIAL PORT

OSCILLATOR

POWER ON

RESET

IMAGE

PROCESSOR

LED

DRIVE

OSC_IN

OSC_OUT

RESONATOR

REFA

REFB

PD

VOLTAGE

REFERENCE

VDD

GND

GND

5 VOLT

POWER

Figure 6. Block diagram of ADNS-2051 optical mouse sensor

ADNS-2051 fig 6

Design Considerations for Improving ESD Performance

The flange on the lens has been designed to increase

the creepage and clearance distance for electrostatic

discharge. The table on the right shows typical values

assuming base plate construction per the Avago supplied

IGES file and HDNS-2100 lens flange.

For improved ESD performance, the lens flange can be

sealed (i.e. glued) to the base plate. Note that the lens

material is polycarbonate and therefore, cyanoacrylate-

based adhesives or other adhesives that may damage

the lens should NOT be used.

The trimmed lens, HDNS-2100#001, is not recommend-

ed for corded applications due to the ESD spec require-

ment.

Typical Distance

Creepage

Clearance

Millimeters

16.0

2.1

PCB

SENSOR

CLIP

LED

LENS/LIGHT PIPE

BASE PLATE

SURFACE

Figure 7. PCB assembly

ADNS-2051 fig 7



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