AEDL-5xxx
Quick Assembly High Resolution Three Channel
Optical Encoders with Dierential Output
Data Sheet
CAUTION: It is advised that normal static precautions be taken in handling and assembly
of this component to prevent damage and/or degradation which may be induced by ESD.
Description
The AEDL-5xxx series encoders are high performance, low
cost, three channel optical incremental encoders which
oer line driver outputs. These encoders emphasize on
high reliability, high resolution, and easy assembly.
Each encoder contains a LED source with lens, an ASIC
with integrated photo detector arrays, LED current regula-
tion, interpolator and output driver circuitry, and a code
wheel which rotates between the emitter and detector
ASIC. The outputs of the AEDL-5xxx is two square waves
in quadrature. In addition, a third channel oers index
signal, which is a 90 electrical degree, true index pulse
which is generated once for each full rotation of the code
wheel. The AEDL-5xxx series utilizes a lm code wheel al-
lowing for resolutions to 5000 CPR.
The line driver oers enhanced performance when the
encoder is used in electronically noisy environments, or
when it is required to drive long distances. AEDL-5xxx se-
ries utilize an industry standard line driver IC, AM26C31Q,
which provides complementary outputs for each encoder
channel. Thus, the output of the line driver encoder is
A, A/, B, B/, I, I/. Suggested line receivers are 26LS32 and
26LS33.
Standard resolutions from 1000 to 5000 counts per revo-
lution are presently available. Please consult local Avago
sales representatives for other resolutions.
For additional information, please refer to:
• AV02-4924EN_DS_AEDT-981x
• AV02-4923EN_ AN-5595_AEDT-981x
• AM26C31Q Datasheet (Texas Instruments)
Features
• High resolution – up to 5000 CPR
• Operating temperature -40°C to +85°C
• User friendly installation process
• Complementary Outputs with industry standard Line
Driver IC
• Single 5 V Supply with ±10% tolerance
• Onboard decoupling capacitor for enhance noise
immunity
Note: Avago Technologies encoders are not recommend-
ed for use in safety critical applications such as. ABS brak-
ing systems, power steering, life support systems and
critical care medical equipment. Please contact our sales
representative if clarications are needed.
