AEDR-8400-142 Avago Technologies US Inc., AEDR-8400-142 Datasheet - Page 7

• Manufacturer Part Number: AEDR-8400-142
• Description: 2CH, 318LPI, REF EN, 2.8V, TR
• Manufacturer: Avago Technologies US Inc.
• Series: -r
• Type: Optical Encoderr

Specifications of AEDR-8400-142

• Mounting Style: SMD/SMT
• Sensing Distance: 0.017" (0.43mm)
• Sensing Method: Reflective
• Sensing Object: Codewheel/Codestrip
• Output Configuration: -
• Sensing Light: -
• Mounting Type: Surface Mount
• Current - Supply: 6mA
• Voltage - Supply: 2.6 V ~ 3 V
• Package / Case: 3.00mm L x 3.28mm W x 1.28mm H
• Features: Compact Model
• Detents: No
• Motion: Linear
• Number Of Channels: 2
• Index Output: Not Indexed
• Encoder Signal: Digital Square Wave
• Built In Switch: No
• Shaft Style: Not Required
• Shaft Diameter (mm): Not Requiredmm
• Operating Supply Voltage (typ): 2.8VDC
• Operating Temperature Min Deg. C: -20C
• Operating Temperature Max Deg. C: 85C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Recommended Land Pattern for AEDR-8400
AEDR-8400 Pad Soldering
In order to provide adequate mechanical strength for the
AEDR-8400 encoder, it is strongly recommended the all
pin-outs need to be soldered including the encoder cen-
ter pad. However, external circuit routing on PCB / FPC
could actually route pin 2, pin 6 and center pad together
hence to have a common ground for the encoder. This
could help to simplify the circuitry routing.
Possible common ground routing:
(Gnd
(Ch A) Pin 4
(V
LED
CC
) Pin 6
) Pin 5
Pin 1 (V
Pin 2 (Gnd)
Pin 3 (Ch B)
LED
)
Likewise, the emitter input voltage supply (Vled) could
share a common voltage supply with detector IC voltage
supply (Vcc) i.e. 2.8V typically. Note that a series resis-
tor is necessary to prevent excess current from flowing
through the emitter. Refer page 6.
Legend:
PCB/FPC
Common ground
routing