as5043 austriamicrosystems, as5043 Datasheet - Page 2

• Manufacturer Part Number: as5043
• Description: 10-bit Programmable 360? Magnetic Angle Encoder With Absolute Digital And Analog Outputs
• Manufacturer: austriamicrosystems

AS5043 Programmable 360° Magnetic Angle Encoder
5
Package = SSOP16 (16 lead Shrink Small Outline Package)
Revision 1.6, 3-Oct-06
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Configuration
Symbol
MagRngn
Mode
CSn
CLK
NC
DO
VSS
Prog_DI
DACref
DACout
FB
Vout
NC
NC
VDD3V3
VDD5V
Figure 2: AS5043 pin configuration SSOP16
DO_OD
DI_PD,
ST
DI_PU,
ST
DI,ST
-
DO_T
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)
Clock Input of Synchronous Serial
Interface; Schmitt-Trigger input
must be left unconnected
Data Output of Synchronous Serial
Interface
Negative Supply Voltage (GND)
OTP Programming Input and Data Input
for Daisy Chain mode. 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
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DO_OD
DI_PD
DI_PU
AI
DI
5.1
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
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 9.
Pin 3 Chip Select (CSn; active low) selects a device
for serial data transmission over the SSI interface. A
“logic high” at CSn forces output DO to digital tri-
state.
Pin 4 CLK is the clock input for serial data
transmission over the SSI interface (see section 8)
Pin 6 DO (Data Out) is the serial data output during
data transmission over the SSI interface (see section
8)
Pin 8 PROG_DI is used to program the different
operation modes, as well as the zero-position in the
OTP register.
This pin is also used as a digital input to shift serial
data through the device in Daisy Chain Configuration,
(see page 6).
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
ratiometric 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
configurations.
continue
Pin Description
digital output open drain
digital input pull-down
digital input pull-up
analog input
digital input
to
Table 1: Pin description SSOP16
this
to
pin
operate,
allows
S
DO_T
ST
AO
but
various
supply pin
digital output /tri-state
schmitt-trigger input
analog output
with
Page 2 of 26
out
) will be
reduced
OPAMP