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参数资料
| 型号： | AM512BVD |
| 厂商： | RENISHAW PLC |
| 元件分类： | 磁阻传感器 |
| 英文描述： | MAGNETIC FIELD SENSOR-HALL EFFECT, 1-4 V, SQUARE, SURFACE MOUNT |
| 封装： | ROHS COMPLIANT, LQFP-44 |
| 文件页数： | 21/22页 |
| 文件大小： | 608K |
| 代理商： | AM512BVD |
Data sheet
AM512BD01_04
Issue 4, 14
th January 2009
2009 RLS d.o.o.
A
associate company
8
Binary parallel output
Parallel output data is available in 9 bit binary code. To activate parallel output the PS pin must be set low.
Output data can be latched while reading the data.
For CW rotation of the magnet the output position is increasing. It is possible to order an AM512B version
with position increasing for CCW rotation of the magnet (special order).
Incremental output
There are three signals for incremental output: A, B and Ri. Signals A and B are quadrature signals, shifted
by 90°, and signal Ri is a reference mark. One revolution generates 128 pulses. The number of counts per
revolution post quadrature evaluation is 512 (128 x 4 = 512). The reference mark signal is produced once
per revolution. The width of the Ri pulse is 1/4 of the quadrature signal period.
Figure 7 shows the timing diagram of A, B and Ri signals with CW rotation of the magnet. B leads A for CW
rotation of the magnet. The counting direction can be changed by swapping the A and B signals.
A
B
Ri
t
ES
01234567
0
Pos. 511
Fig. 7: Timing diagram for incremental output
Edge separation time:
Parameter
Symbol
Ideal
Min.
Unit
Note
Edge separation time
tES
19.5
6
s
At 6,000 rpm
Edge separation time
tES
3.9
1.2
s
At 30,000 rpm
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