AS5046ASSU austriamicrosystems, AS5046ASSU Datasheet - Page 2

• 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
4
Package = SSOP16 (16 lead Shrink Small Outline Package)
Revision 1.1
MagRngn
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Mode
Pin Configuration
SDA
VSS
CSn
SCL
Prog
Symbol
MagRngn
Mode
CSn
SCL
NC
SDA
VSS
Prog
DACref
DACout
FB
Vout
NC
NC
VDD3V3
VDD5V
NC
Figure 3: AS5046 pin configuration SSOP16
1
2
4
5
6
7
8
3
Table 1: Pin description SSOP16
DO_OD
DI_PD,
ST
DI_PU,
ST
DI,ST
-
DIO
S
DI_PD
AI
AO
AI
AO
-
-
S
S
Type
Magnet Field Magnitude RaNGe warning;
active low, indicates that the magnetic
field strength is outside of the
recommended limits.
Mode input. Select between low noise
(open, low) and high speed (high) mode.
Internal pull-down resistor
Chip Select, active low; Schmitt-Trigger
input, internal pull-up resistor (~50kΩ).
Must be connected to VSS for serial data
transmission.
Serial Clock Line.Clock input for 2-wire
serial data transmission
must be left unconnected
Serial Data Line. Bi-directional I/O for 2-
wire serial data transmission
Negative Supply Voltage (GND)
OTP Programming Input.
Internal pull-down resistor (~74kΩ).
Should be connected to VSS if
programming is not used
DAC Reference voltage input for external
reference
DAC output (unbuffered, Ri ~8kΩ)
Feedback, OPAMP inverting input
OPAMP output
Must be left unconnected
Must be left unconnected
3V-Regulator Output for internal core,
regulated from VDD5V.Connect to
VDD5V for 3V supply voltage. Do not
load externally.
Positive Supply Voltage, 3.0 to 5.5 V
Description
16
15
14
13
12
11
10
9
VDD5V
VDD3V3
NC
NC
Vout
FB
DACout
DACref
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DO_OD
DI_PD
DI_PU
AI
DI
4.1
Pins 7, 15 and 16 are supply pins, pins 5, 13 and 14 are
for internal use and must be left open.
Pin 1 is the magnetic field strength indicator, MagRNGn.
It is an open-drain output that is pulled to VSS when the
magnetic field is out of the recommended range (45mT to
75mT). The chip will still continue to operate, but with
reduced performance, when the magnetic field is out of
range. When this pin is low, the analog output at pins
#10 and #12 will be 0V to indicate the out-of-range
condition.
Pin 2 MODE allows switching between filtered (slow) and
unfiltered (fast mode). See section 10.
Pin 3 Chip Select (CSn; active low) selects a device for
serial data transmission over the 2-wire interface. A
“logic high” at CSn forces output SDA to digital tri-state.
Pin 4 SCL (Serial Clock) is the clock input for data
transmission over the 2-wire serial interface
Pin 6 SDA (Serial Data Line) is the serial data input /
output line during data transmission over the 2-wire
interface
Pin 8 PROG is used to program the different operation
modes, as well as the zero-position in the OTP register.
Pin 9 DACref is the external voltage reference input for
the Digital-to-Analog Converter (DAC). If selected, the
analog output voltage on pin 12 (V
to the voltage on this pin.
Pin10 DACout is the unbuffered output of the DAC. This
pin may be used to connect an external OPAMP, etc. to
the DAC.
Pin 11 FB (Feedback) is the inverting input of the
OPAMP buffer stage.
Access to this pin allows various OPAMP configurations.
Pin 12 Vout is the analog output pin. The analog output
is a DC voltage, ratiometric to VDD5V (3.0 – 5.5V) or an
external voltage source and proportional to the angle.
Pin Description
digital output open drain
digital input pull-down
digital input pull-up
analog input
digital input
S
DO_T
ST
AO
out
supply pin
digital output /tri-state
schmitt-trigger input
analog output
) will be ratiometric
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