AS5046 Ver la hoja de datos (PDF) - austriamicrosystems AG

Número de pieza

componentes Descripción

Fabricante

AS5046

PROGRAMMABLE 12-bit 360° MAGNETIC ANGLE ENCODER WITH ABSOLUTE 2-WIRE SERIAL AND ANALOG INTERFACES

austriamicrosystems AG 

AS5046 Programmable 360° Magnetic Angle Encoder – Preliminary Data Sheet

4 Pin Configuration

MagRngn 1

Mode 2

CSn 3

SCL 4

NC 5

SDA 6

VSS 7

Prog 8

16 VDD5V

15 VDD3V3

14 NC

13 NC

12 Vout

11 FB

10 DACout

9 DACref

Figure 3: AS5046 pin configuration SSOP16

Package = SSOP16 (16 lead Shrink Small Outline Package)

Pin Symbol Type Description

Magnet Field Magnitude RaNGe warning;

1

MagRngn DO_OD

active low, indicates that the magnetic

field strength is outside of the

recommended limits.

2 Mode

DI_PD,

ST

Mode input. Select between low noise

(open, low) and high speed (high) mode.

Internal pull-down resistor

3 CSn

DI_PU,

ST

Chip Select, active low; Schmitt-Trigger

input, internal pull-up resistor (~50kΩ).

Must be connected to VSS for serial data

transmission.

4 SCL

DI,ST

Serial Clock Line.Clock input for 2-wire

serial data transmission

5 NC

-

must be left unconnected

6 SDA

DIO

Serial Data Line. Bi-directional I/O for 2-

wire serial data transmission

7 VSS

S

Negative Supply Voltage (GND)

8 Prog

DI_PD

OTP Programming Input.

Internal pull-down resistor (~74kΩ).

Should be connected to VSS if

programming is not used

9 DACref AI

DAC Reference voltage input for external

reference

10 DACout AO

DAC output (unbuffered, Ri ~8kΩ)

11 FB

AI

Feedback, OPAMP inverting input

12 Vout

AO

OPAMP output

13 NC

-

Must be left unconnected

14 NC

-

Must be left unconnected

15 VDD3V3 S

3V-Regulator Output for internal core,

regulated from VDD5V.Connect to

VDD5V for 3V supply voltage. Do not

load externally.

16 VDD5V S

Positive Supply Voltage, 3.0 to 5.5 V

Table 1: Pin description SSOP16

DO_OD

DI_PD

DI_PU

AI

DI

digital output open drain

digital input pull-down

digital input pull-up

analog input

digital input

S supply pin

DO_T digital output /tri-state

ST schmitt-trigger input

AO analog output

4.1 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). 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 (Vout) will be 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 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.

Revision 1.1

www.austriamicrosystems.com

Page 2 of 33

Share Link: