AS5134-ASSU austriamicrosystems, AS5134-ASSU Datasheet - Page 19

• Manufacturer Part Number: AS5134-ASSU
• Description: ENCODER, MAGNETIC, ROTARY, 8BIT, 20SSOP
• Manufacturer: austriamicrosystems

Specifications of AS5134-ASSU

• Brief Features: 9-Bit Multiturn Counter, User Programmable Zero Position And Sensitivity
• Supply Voltage Range: 4.5V To 5.5V
• Operating Temperature Range: -40°C To +140°C
• Digital Ic Case: RoHS Compliant
• Ic Function: Programmable High Speed Magnetic Rotary Encoder
• Rohs Compliant: Yes

AS5134
Data Sheet - D e t a i l e d D e s c r i p t i o n
Serial Synchronous Interface (SSI)
Table 9. Commands of the SSI in Normal Mode
EN PROG: Enables the access to the OTP register.
WRITE CONFIG: LP HI activates the sleep mode of the AS5134. The power consumption is significantly reduced. LP
LO returns to normal operation mode. During sleep mode, the lock bit in command 0 and command 1 is LO.
RD_MT Counter: Command for read out of multi turn register.
RD_ANGLE: Command for read out of angle value and AGC value (agc). “Lock” indicates a locked ADC.
tst: Test bits for internal testing.
Hyst (11:10): Digital Hysteresis can be set via the digital interface 0,1,2 (default) 3 LSB; “On” after power-on reset
SET MT COUNTER: Command for setting the Multi Turn Counter to a defined value.
LP: Default "0"; "1" for using the low power function.
lock_adc: Indicates that the tracking adc is in a locked status. Note that for valid angle conditions, the magnetic field
has to be in a certain range, which is indicated by the agc_counter value.
Table 10. Commands of the SSI in Extended Mode
WRITE OTP: Writing of the OTP register. The written data is volatile. “Zero Angle” is the angle, which is set for zero
position. “Sensitivity” is the gain setting in the signal path. “Redundancy” is the number of bits, which allows the
customer to overwrite one of the customer OTP bits <0:15>.
PROG_OTP: Programming of the OTP register. Only Bits <0:20> can be programmed by the customer. The internal
factory settings are locked by an “internal lock bit” and cannot be programmed.
READ_OTP: Read out the content of the OTP register. Data written by WRITE_OTP and PROG_OTP is read out.
www.austriamicrosystems.com
23 WRITE CONFIG 1
20 SET MT COUNTER 10100
16 EN PROG
31 WRITE OTP
25 PROG_OTP 11001
15
#
4 RD MT COUNTER
0 RD_ANGLE
#
9
READ_OTP
READ ANA
cmd
number of bits
cmd
0
0
1
1
01001
11111
01111
bin
10000
00100
00000
10111
bin
extded
extded
extded
extded
mode
write
write
read
read
Hyst
mode
write
write
write
read
read
61..
60
tst
tst
tst
tst
2
lock_adc
59..
18
42
ID
ID
ID
ID
LP
15
1
hyst_2x
hyst_2x
hyst_2x
hyst_2x
41
Digital interface @ extended mode
1
0
1
0
1
Digital interface @ normal mode
14
tst
0
LP
LP
LP
40
tst
1
39..
36
tst
tst
tst
tst
13
tst
4
0
Revision 1.8
35..
multi-turn-counter <8:0>
multi-turn-counter <8:0>
32
tst
tst
tst
tst
2
agc <5:0>
12
tst
0
FM
LP
LP
LP
31
1
30..
27
tst
tst
tst
tst
Hyst<1:0>
4
11
1
26..
25
tst
tst
tst
tst
2
10
1
24..
22
tst
tst
tst
tst
3
2 LSB (default value)
tst
9
0
lock_otp
lock_otp
lock_otp
lock_otp
21
(*)
(*)
(*)
(*)
1
Function
tst
8
0
1
3
0
20..1
r_ad
r_ad
r_ad
r_ad
4
7
d
d
d
d
r_bit
r_bit
r_bit
r_bit
16
tst
1
7
1
Customer Settings
angle <8:0>
15..1
sensi
sensi
sensi
sensi
tivity
tivity
tivity
tivity
2
4
tst
6
0
13..
abi
abi
abi
abi
12
2
5 4 3 2 1 0
1 0 1 1 1 0
uvw
uvw
uvw
uvw
11..
3
9
19 - 39
angle
angle
angle
angle
zero
zero
zero
zero
8..0
9