HEDS-8933 Avago Technologies US Inc., HEDS-8933 Datasheet - Page 7

• Manufacturer Part Number: HEDS-8933
• Description: TOOL ALIGNMENT AEAS-7000 SERIES
• Manufacturer: Avago Technologies US Inc.

Specifications of HEDS-8933

• Accessory Type: Mechanical Alignment Tool
• Product: Tools & Accessories
• Size / Dimension: 8 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: AEAS-7000 Series
• For Use With: 516-2181 - IC ENCODER ABS 16BIT SERIALAEAS-7000-1GSD0 - IC ENCODER ABS 13BIT SERIAL 85C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Operation
1. After powering up the unit using V
2. The 16 bit serial Gray code can be tapped out from
3. Whenever NSL is high, the DOUT will have the logic
Figure 5. Design reference for code disk hub-
shaft
7
connecting GND to ground, trigger input pins NSL
and SCL using the timing diagram (Figure 3). NSL is
a control pin for the internal shift register. NSL=1 is
load mode while NSL=0 is shift mode for the shift
register. When NSL=0 and combined with clock
pulses, the serial Gray code will be shifted out to
DOUT bit by bit per every clock pulse. Valid data of
DOUT should be sampled at the falling edges of the
clock pulses.
the pin DOUT, most significant bit (D11) first. The
rate of the 16 bit Gray code serial transfer rate is
dependent on the SCL clock frequency. The faster
the clock, the faster the transfer rate. The maximum
clock rate the AEAS-7000 can take is 16 MHz, which
means the entire 16 bit Gray code can be serially
transferred out in 1 µs.
of the MSB (D11). After NSL goes low, the number
of bits being transferred out will depend on the
number of clock pulses given to SCL. The default is
16 bit clock pulses for the 16 bit Gray code. If for
other application where another number other than
16 is needed, just supply the corresponding number
of clock pulses to the SCL, e.g., 12 bit, 13 bit, 14 bit
or 15 bit, and the corresponding length of Gray code
words with the corresponding resolution can be
obtained.
Motor end is user
20
specified
A
Ø0.01
58
4.2
+0.03
-0
2
D
=+5 V and
0.01 A
0.02
12
0.01 A
0.02
Plug & Play Hub-Shaft design
Figure 5 details the hub-shaft design of which the
dimensions must be strictly followed for the plug &
play feature of the AEAS-7000 to work. In order to
secure the code disk to the hub, an adhesive should
be utilised. It is recommended to use DELO-DUOPOX,
1895 from DELO or its equivalence. Stainless steel is
recommended as the hub-shaft material.
A more detailed instruction for AEAS-7000 installation
consideration can be found in AEAS-7000 application
note.
0.01
Straightness
Total Run-out
Flatness
Perpendicularity
0.8 depth as adhesive reservoir
Ø16
Ø11
Ø15