as5134 austriamicrosystems, as5134 Datasheet - Page 12

• Manufacturer Part Number: as5134
• Description: 360?programmable High Speed Bldc Magnetic Rotary Encoder
• Manufacturer: austriamicrosystems

AS5134
Data Sheet - D e t a i l e d D e s c r i p t i o n
1-Wire PWM Connection
This configuration uses the least number of wires: only one line (PWM) is used for data, leaving the total number of
connection to three, including the supply lines. This type of configuration is especially useful for remote sensors. Ultra
Low Power Mode is not possible in this configuration, as there is no bi-directional data transmission. If the AS5134
angular data is invalid, the PWM output will remain at low state. Pins that are not shown may be left open.
Figure 7. Data Transmission with Pulse Width Modulated (PWM) Output
Analog Output
This configuration is similar to the PWM connection (only three lines including supply are required). With the addition of
a lowpass filter at the PWM output, this configuration produces an analog voltage that is proportional to the angle. This
filter can be either passive (as shown in
analog output can be achieved. If the AS5134 angular data is invalid, the PWM output will remain at low state and thus
the analog output will be 0V. Pins that are not shown may be left open.
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D20 D19 D18 D17 D16 D15 D14 D13 D12 D11 D10 D9
0
DCLK
DI
0
0
0
1
0
VSS
VDD
+5V
C2 lock
2
Micro Controller
VDD
VSS
Figure
3
D5
Input
D4
8) or active. The lower the bandwidth of the filter, the less ripple of the
4
D3
Revision 1.6
AGC
Read
D2
5
D1
PWM
CS
6
AS5134
D15
D0
D8
C2
D7
D7
7
VDD
VSS
D14
D6
D6
100n
D5
D5
8
D4
D4
Angle
20
D1
D3
D3
timeout
D2
D2
21
t
TO
D0
D1
D1
12 - 29
D0
D0