AS5043

Data Sheet - Pin Configuration

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Revision 1.80

3 – 36

5.1

Pin Description

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). This pin must be tied to VSS or VDD5V,

and must not be switched after power up. See section 0.

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 1)

Pin 6 DO

(Data Out) is the serial data output during data transmission over the SSI interface (see section 1)

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 9).

Pin 9 DACref

is the external voltage reference input for the Digital-to-Analog Converter (DAC). If selected, the analog

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.