AS5046ASSU austriamicrosystems, AS5046ASSU Datasheet - Page 11

• Manufacturer Part Number: AS5046ASSU
• Description: IC, MAGNETIC ROTARY ENCODER 12BIT SSOP16
• Manufacturer: austriamicrosystems
• Type: Magnetic Rotary Encoderr

Specifications of AS5046ASSU

• Ic Function: Encoder IC
• Supply Voltage Range: 3V To 3.6V, 4.5V To 5.5V
• Operating Temperature Range: -40°C To +125°C
• Digital Ic Case Style: SSOP
• No. Of Pins: 16
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AS5046 Programmable 360° Magnetic Angle Encoder – Preliminary Data Sheet
Notes:
1)
2)
3)
9.1
The Serial Interface Unit contains 32 bits of data:
Note that the angle information is only valid, if the Hall Sensor Front-end is configured properly. See Table 4 for more
information.
9.1.1
the 12-bit angle data consists of two blocks: the upper 10-bits in bytes 1 & 2 and the lower two bits in byte 4
9.1.2
9.1.3
The magnitude information is a value that is proportional to the magnetic field strength. A strong magnet (or close distance
between magnet and chip) will result in a high magnitude value and vice versa. When the automatic gain control (AGC) is
active (default state), it tries to keep the magnitude value stable at a value of 3F
Revision 1.1
This address is also modified with the analog mode setting
Writing a value to any of the SIN- COS- registers halts the conversion loop and calculates an angle that is given by the
values in the SIN and COS registers. A Read command from these registers restarts the automatic conversion loop.
Writing a value to the AGC counter register halts the automatic gain control loop and sets the AGC to the value written
in this register. The angle conversion loop continues to operate. A Read command from the AGC register restarts the
automatic gain control loop.
Status bit 1
Status bit 2
Status bit 3
Status bit 4
Status bit 5
Status bit 6
Serial Interface Unit (Type ID: 0101)
12-bit Angle Information
6-bit Status Information
8-bit Magnitude Information
SIU bit 11
SIU bit 12
SIU bit 13
SIU bit 14
SIU bit 15
SIU bit 16
Offset Comp Finish
CORDIC Over Flow
Lin Alarm
Mag Incr.
Mag Decr.
Even Parity
Table 3: Status bits of byte 2 of the SIU
www.austriamicrosystems.com
OCF
COF
LIN
M_I
M_D
P
H
must be 1 for valid data
must be 0; if this bit is set, the
angular data is invalid
LINearity warning bit. Should be 0
for normal operation. Will be 1 when
the magnetic field is too high or too
low
This bit is set temporarily when the
magnetic field increases, when the
magnet is pushed towards the IC
This bit is set temporarily when the
magnetic field decreases, when the
magnet is pulled away from the IC
Even parity check bit of bytes 1 & 2
.
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