HEDS-9141#F00 Avago Technologies US Inc., HEDS-9141#F00 Datasheet - Page 7

• Manufacturer Part Number: HEDS-9141#F00
• Description: Encoders 3 Channel 256CPR
• Manufacturer: Avago Technologies US Inc.

Specifications of HEDS-9141#F00

• Number Of Channels: 3
• Mounting Style: PCB
• Supply Voltage: 5 V
• Product: Optical
• Technology: Rotary
• Pulses Per Revolution: 256 CPR
• Termination Style: Solder Pin
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical Interface
To insure reliable encoding performance, the HEDS-9040
and 9140 three channel encoder modules require 2.7
kΩ (±10%) pull-up resistors on output pins 2, 3, and 5
(Channels I, A and B) as shown in Figure 1. These pull-up
resistors should be located as close to the encoder mod-
ule as possible (within 4 feet). Each of the three encoder
module outputs can drive a single TTL load in this con-
figuration.
Figure 2. HEDS-9X40 Mounting Tolerance.
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Figure 1. Pull-up Resistors on HEDS-9X40 Encoder Module Outputs.
Mounting Considerations
Figure 2 shows a mounting tolerance requirement for
proper operation of the HEDS-9040 and HEDS-9140. The
Aligning Recess Centers must be located within a toler-
ance circle of 0.005 in. radius from the nominal locations.
This tolerance must be maintained whether the module
is mounted with side A as the mounting plane using
aligning pins (see Figure 5), or mounted with Side B as
the mounting plane using an alignment tool (see Figures
3 and 4).