AS5045 AB austriamicrosystems, AS5045 AB Datasheet - Page 2

• Manufacturer Part Number: AS5045 AB
• Description: BOARD ADAPTER AS5045
• Manufacturer: austriamicrosystems

Specifications of AS5045 AB

• Sensor Type: Magnetic, Rotary Position
• Sensing Range: 360°
• Interface: Serial
• Voltage - Supply: 9V
• Embedded: No
• Utilized Ic / Part: AS5045
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Sensitivity: -

AS5045 12-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER
Adapter PCB Operation Manual
2 General Description
The AS5045 is a system-on-chip, combining
integrated Hall elements, analog front end and
digital signal processing in a single device. It
provides incremental output signals and the
absolute angular position of a magnet that is placed
either above or below the device.
The AS5045 can be configured to specific customer
requirements by programming the integrated OTP
(one time programmable) register. An internal
voltage regulator allows the AS5045 to operate at
either 3.3 V or 5 V supplies.
3 Pin Configuration
Revision A.02, 14-Mar-07
MagDECn
MagINCn
Prog_DI
Figure 2: Typical arrangement AS5045 and magnet
Mode
VSS
NC
NC
NC
Figure 3: Pin configuration SSOP16
2
5
1
3
4
6
7
8
16
15
14
13
12
10
11
9
www.austriamicrosystems.com
VDD5V
NC
PWM
VDD3V3
NC
CSn
CLK
DO
4 Pin Description
P
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
P
i
i
n
n
S
S
MagINCn
MagDECn
NC
NC
NC
Mode
VSS
Prog_DI
DO
CLK
CSn
PWM
NC
NC
VDD3V3
VDD5V
y
y
m
m
b
b
o
o
l
l
Table 1: Pin description
T
DO_OD
DO_OD
-
-
-
-
S
DI_PD
DO_T
DI,
ST
DI_PU,
ST
DO
-
-
S
S
T
y
y
p
p
e
e
D
D
Magnet Field Magnitude INCrease;
active low, indicates a distance
reduction between the magnet and
the device surface. See Error!
Reference source not found.
Magnet Field Magnitude DECrease;
active low, indicates a distance
increase between the device and the
magnet. See Error! Reference
source not found.
must be left unconnected
must be left unconnected
must be left unconnected
select between slow (open, low :VSS)
and fast (high) mode. Internal pull-
down resistor.
Negative Supply Voltage (GND)
OTP Programming Input and Data
Input for Daisy Chain mode. Internal
pull-down resistor (~74kΩ).
Connect to VSS if not used
Data Output of
Synchronous Serial Interface
Clock Input of
Synchronous Serial Interface;
Schmitt-Trigger input
Chip Select, active low; Schmitt-
Trigger input, internal pull-up resistor
(~50kΩ)
Pulse Width Modulation of approx.
1kHz; LSB in Mode3.x
Must be left unconnected
Must be left unconnected
3V-Regulator Output, internally
regulated from VDD5V.Connect to
VDD5V for 3V supply voltage. Do not
load externally.
Positive Supply Voltage, 3.0 to 5.5 V
e
e
s
s
c
c
r
r
i
i
p
p
t
t
i
i
o
o
n
n
Page 2 of 12