AS5601 Adapter Board
ams Eval Kit Manual, Confidential
Page 8
[v1-00] 2014-Jul-31
6.3.2 Hysteresis
A 1 to 3 LSB hysteresis of the 12-bit resolution can be enabled.
6.3.3 Slow Filter
The slow filter allows improving the output noise. The default setting for the Slow Filter is 16x and
can be reduced for faster response.
6.3.4 Fast Filter
The fast filter is active by selecting a Fast Filter Threshold. If the output value remains below the
threshold, the output noise is defined by the slow filter setting. When exceeding the threshold, the
output noise is defined from the fast filter for fast output response. The output noise is again defined
by the slow filter as soon as the output stays in the threshold again.
6.3.5 Watchdog
If the watchdog is active, the AS5601 automatically enters Low Power Mode 3 after one minute if
the output value stays within a threshold of 4 LSB.
7
Board Schematics, Layout and BOM
The schematic, layout and BOM of the adapterboard are shown below for reference.
7.1 Schematics
The schematic of the board is shown below in
Figure 6:
Adapterboard Schematic
1
1
2
2
3
3
4
4
D
D
C
C
B
B
A
A
Size
Date
Project Title
Revision
Sheet
of
Originator RPH
AS5601-AB-1.4
A4
1
29.01.2014
3
3
1
2
3
4
not populated
Stiftleiste4_THMD
J3
1
2
3
4
Stiftleiste4_THMD
J2
not populated
VDD
VDD
GND
SDA
SCL
GND
VREG
PUSH
B
A
A
B
10uF
Farnell
1833804
C2
C0805
100nF
Farnell
1740614
C1
C0603
GND
VDD
GND
V
R
E
G
J1
not populated
R3
NC
Note1: Supply
J1=OPEN: 5V
J1=CLOSED: 3.3V
Note2: Optional pull-ups
Note3:
Adapterboard can be used with AS5XXX-UCB-1.0
Note4:
AS5601 I2C Address is 0x36h
(Use 4pin I2C header in 3.3V mode)
VREG
A2
PUSH
A3
GND
A4
I2CLK
B2
I2CD
B3
B
B4
VDD
A1
A
B1
AS5601
U1
AS5601
R4
NC
S
C
L
S
D
A
VDD
VDD
