IC-PR datasheet(2/18 Pages) ICHAUS

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iC-PR Series

REFLECTIVE OPTO ENCODERS

Rev A3, Page 2/18

DESCRIPTION

The iC-PR series are advanced optical, reflective,

lensless encoder iCs featuring integrated HD Phased

Array photosensors and a blue LED. They provide

high signal quality with relaxed alignment tolerances.

Differential digital ABZ outputs with or without inter-

polation or analog SIN/COS outputs with index are

available. Typical applications are incremental en-

coders for motor control.

Blue-enhanced photosensors are adapted to the short

wavelength of the embedded blue LED, and provide

low-jitter outputs due to improved signal contrast. The

unique assembly technology of the blue LED emitter

and sensors results in low optical crosstalk.

Low-noise transimpedance amplifiers, arranged in a

paired layout to ensure excellent channel matching,

are used to convert the sensor signals into voltages

of several hundred millivolts.

Various operation modes are selectable via tri-level

inputs SEL1 and SEL2: Digital outputs with native

(x1) or interpolated resolution (x2, x4, x8 or x16), ana-

log outputs or mixed analog/digital outputs, where

the latter one combines analog COS/SIN signals with

a digital index. The amplified analog output signals

allow for inspection and monitoring of encoder assem-

bly. Moreover, feeding external interpolation circuits

(e.g. iC-NQ, iC-TW8 or iC-TW28) is possible.

Index gating is also pin-selectable via input TZ: The

options are ungated (1 T), B-gated (0.5 T) or AB-gated

(0.25 T).

Via tri-level input EDC a minimal edge distance of

80 ns, 1 µs or 10 µs can be preset for digital operation

modes.

The devices feature a low power consumption. They

run at single-sided analog supplies of 4.5 V up to 5.5 V

and single-sided digital supplies of 3.0 V up to 5.5 V.

iC-PR4307

Code disc ∅:

43.0 mm

Native CPR:

720

iC-PR26xx

Code disc ∅:

26.0 mm

Native CPR:

250, 256, 360

iC-PR1456

Code disc ∅:

14.0 mm

Native CPR:

250, 256

iC-PR0464

Code disc ∅:

4.0 mm

Native CPR:

iC-PR256

Linear scale:

256 µm period length

General notice on materials under excessive conditions

Epoxy resins (such as solder resists, IC package and injection

molding materials, as well as adhesives) may show discoloration,

yellowing, and surface changes in general when exposed

longterm to high temperatures, humidity, irradiation, or due

to thermal treatments for soldering and other manufacturing

processes.

Equally, standard molding materials used for IC pack-

ages can show visible changes induced by irradiation, among

others when exposed to light of shorter wavelengths, blue light

for instance. Such surface effects caused by visible or IR LED

light are rated to be of cosmetic nature, without influence to the

chip’s function, its specifications and reliability.

Note that any other material used in the system (e.g.

varnish, glue, code disc) should also be verified for irradiation

effects.

IC-PR Datasheet(PDF) 2 Page - IC-Haus GmbH

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