AS5030 DB austriamicrosystems, AS5030 DB Datasheet - Page 13
![BOARD DEMO AS5030](/photos/28/40/284057/as5030-db_sml.jpg)
AS5030 DB
Manufacturer Part Number
AS5030 DB
Description
BOARD DEMO AS5030
Manufacturer
austriamicrosystems
Specifications of AS5030 DB
Sensor Type
Magnetic, Rotary Position
Sensing Range
360°
Interface
USB
Voltage - Supply
5V USB or 7.5V
Embedded
Yes, MCU, 8-Bit
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
7.3 Serial 3-Wire Read-only Connection
If the AS5030 is only used to provide the angular data (no power down or OTP access) this simplified connection is possible. The Chip Select
(CS) and Clock (CLK) connection is the same as in the R/W mode, but only a digital input pin (not an I/O pin) is required for the DIO connection.
As the first 5 bits of the data transmission are command bits sent to the AS5030, both the microcontroller and the AS5030 are configured as
digital inputs during this phase. Therefore, a pull-down resistor must be added to make sure that the AS5030 reads “00000” as the first 5 bits
which sets the Read_Angle command.
All further application examples are shown in R/W mode, however read-only mode is also possible, unless otherwise noted.
Figure 6. SSI Read-only Serial Data Transmission
Figure 7. Timing Diagram in 2-wire and 3-wire SSI Mode
Table 4. Serial Bit Sequence (16-bit read/write)
www.austriamicrosystems.com/AS5030
D20 D19 D18 D17 D16 D15 D14 D13 D12 D11 D10
0
CLK
CS
DIO
DIO
0
0
t 1
0
VSS
+ 5 V
VDD
1
0
Micro
Controller
C2
command phase
VSS
2
VDD
lock
Output
Output
Input
3
D5
D4
4
10 k ...
100 k
D3
AGC
5
Revision 2.1
Read
D2
11
10
D 15
12
D9
D1
6
CS
CLK
D I O
D 14
D8
D0
14
C 1
data phase
7
13
AS5030
D7
D7
15
C 2
VDD
D 13
8
D6
D6
VSS
3
D 12
D5
D5
D 1
20
100 n
D4
D4
Angle
D 0
21
D3
D3
t 9
t 10
D2
D2
DIO read
DIO write
D1
D1
13 - 44
D0
D0