AS5030 AB austriamicrosystems, AS5030 AB Datasheet - Page 20

• Manufacturer Part Number: AS5030 AB
• Description: BOARD ADAPTER AS5030
• Manufacturer: austriamicrosystems

Specifications of AS5030 AB

• Sensor Type: Magnetic, Rotary Position
• Sensing Range: 360°
• Interface: Serial
• Voltage - Supply: 5V
• Embedded: No
• Utilized Ic / Part: AS5030
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Sensitivity: -

AS5030
Datasheet - D e t a i l e d D e s c r i p t i o n
7.10 3-Wire Daisy Chain Mode
The Daisy Chain mode allows connection of more than one AS5030 to the same controller interface. Independent of the number of connected
devices, the interface to the controller remains the same with only three signals: CSn, CLK and DO. In Daisy Chain mode, the data from the
second and subsequent devices is appended to the data of the first device.
The 100nF buffer cap at the supply (shown only for the last device) is recommended for all devices.
The total number of serial bits is: n*21, where n is the number of connected devices: e.g. for 2 devices, the serial bit stream is 42bits. For three
devices it is 63 bits.
Figure 17. Connection of Devices in 3-wire Daisy Chain Mode
Figure 18. Timing Diagram in 3-wire Daisy Chain Mode
www.austriamicrosystems.com/AS5030
CLK
CS
DIO
VSS
+5 V
VDD
CMD 4
Micro
Controller
1
VDD
VSS
CMD 3
Output
Output
2
CMD 2
I/O
3
CMD 1
4
AS5030 # 1
CMD 0
5
11
10
12
D 15
14
C1
6
DI O
CLK
CS
D 14
AS5030
13
VDD
15
7
C2
# 1
D 13
8
VSS
3
DX
20
D 0
21
CMD 4
Revision 2.1
12
11
10
22
14
CMD 3
C1
DI O
CLK
CS
23
AS5030
13
VDD
15
CMD 2
C2
24
# 2
CMD 1
VSS
3
25
DX
AS5030 # 2
CMD 0
26
D 15
27
D 14
28
12
11
10
D 13
14
29
C1
DIO
CS
CLK
(last device)
13
AS5030
VDD
15
C2
41
D 0
42
VSS
3
DX
CMD 4
AS5030 # 3
43
CMD 3
44
100n
CMD 2
20 - 44