AEDC-55xx / AEDC-56xx
High Resolution Two or Three Channel Quick
Assembly Encoders With Connector Latch
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 AEDC-5xxx series encoders, while similar to the indus-
try standard HEDS-5xxx series kit encoder, provides a con-
nector latch on the cover housing to improve connector
retention. This device is built upon the Avago AEDT-9810
series encoder module, and provides the same perfor-
mance, low cost, high reliability, high resolution, and ease
of assembly customers have come to expect.
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 AEDC-5xxx are 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 AEDC-5xxx series utilizes a lm code wheel
allowing for resolutions up to 5000 CPR and accommodat-
ing shaft diameters from 2mm to 8mm.
This kit encoder may be quickly and easily mounted to
a motor. The electrical interface is through ve (single
ended) or ten (dierential versions) 0.025 inch square pins
on 0.100 inch centers. Interface cable assemblies to meet
customer requirements are available also.
The dierential (line driver) version oers enhanced per-
formance when the encoder is used in noisy environ-
ments, or when it is required to drive long cables. It uses
an industry standard RS422 compatible line driver IC,
AEIC-7272, which provides dierential outputs for each
of the encoder channels. Suggested line receivers are
26LS32 and 26LS33.
Features
• Available in two or three channel encoder A,B and I
• Latching connector design
• Single 5V supply
• Resolution of up to 5000 CPR
• TTL compatible, with single ended or dierential
output.
• Quick assembly
• No signal adjustment required
• Small size
• -40 °C to 85 °C operating temperature
Applications
High volume applications such as printers, plotters, tape
drives, textile machines, positioning tables and also auto-
matic handlers among others.
Note: Avago Technologies encoders are not recommend-
ed for use in safety critical applications, e.g., ABS braking
systems, power steering, life support systems and critical
care medical equipment. Avago’s products and software
are not specically designed, manufactured or autho-
rized for sale as parts, components or assemblies for the
planning, construction, maintenance or direct operation
of a nuclear facility or for use in medical devices or appli-
cations. Customers are solely responsible, and waive all
rights to make claims against Avago or its suppliers, for
all losses, damage, expense or liability in connection with
such use. Please contact your local sales representative if
more clarication is needed.
