AEAT-84AD-LBSF0 Avago Technologies US Inc., AEAT-84AD-LBSF0 Datasheet - Page 3

• Manufacturer Part Number: AEAT-84AD-LBSF0
• Description: Quadrant/Circular Detector,Module C
• Manufacturer: Avago Technologies US Inc.
• Series: AEAT-84ADr

Specifications of AEAT-84AD-LBSF0

• Encoder Type: Optical
• Output Type: Gray Code (Absolute)
• Pulses Per Revolution: 16384
• Voltage - Supply: 5VDC
• Actuator Type: 10mm Geared Center
• Detent: No
• Built In Switch: No
• Mounting Type: Chassis Mount
• Termination Style: Pin Strip
• Output: Digital
• Operating Temperature Range: - 40 C to + 125 C
• Product: Optical
• Technology: Rotary
• Detents: No
• Motion: Rotary
• Index Output: Not Indexed
• Encoder Signal: Digital Square Wave
• Shaft Style: Hollow
• Operating Temperature Min Deg. C: -40C
• Operating Temperature Max Deg. C: 125C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Orientation: -
• Rotational Life (cycles Min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Multiplexing and Position Data
Each of the 1:4 reduced 7 coded
gear wheels generates a 3-bit code,
from which the 14-bit Gray code can
be generated as position data
through V-bit processing.
The
electrically for all gear wheels, only
the projection on the mechanical
angle (the revolutions) is different
according to the 1:4 divisions.
The code and the data bits and V-
bits to be generated are shown in
the Figure 3 for the gear wheel 1:
The 3-bit codes of the gear wheels
1 to 7 are output on MTDAT[2:0] de-
multiplexed with MTMUX[2:0]. Here,
the binary value on MTMUX[2:0]
corresponds to the gear-wheel
number (1 = gear wheel 1, 2 = gear
wheel 2, etc.). The configuration is
displayed with the value “0.”
Table 1 shows the assignments:
3
3-bit
code
is
identical
Shaft Turns
MSB Singleturn
1. Wheel Turns
1. MTDAT[0]
1. MTDAT[1]
1. MTDAT[2]
Gray Code (generated)
Data-Bit1
Data-Bit2
V-Bit2
Figure 3. Multiplexing Diagram for gear wheel 1
Table 1. Demultiplexing Diagram for all gear wheels
Notes:
1. Applicable for AEAx-84AD solid shaft version only
Bin/ Dec
MTMUX [2:0]
001 / 1
010 / 2
111 / 7
000 / 0
to
0
0
MTDAT[2]
always 1
1
3-bit gear wheel 2
3-bit gear wheel 7
3-bit gear wheel 1
MTDAT[1]
0 = 12 bit
1 = 14 bit
to
2
1 = Solid Shaft
MTDAT[0]
3
Notes
1
4
1