as5043 austriamicrosystems, as5043 Datasheet - Page 8

• 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
Note: Figure 8 and are shown for 360° operation. See Table 5 (page 12) for further angular range programming options.
11.1.2
Figure 9: Diagnostic Output Mode
It is possible to enable the analog output permanently (it will not be switched off even if the magnetic field is out of range).
To enable this feature an OTP bit in the factory setting must be set. The corresponding bit is FS6. See application note
AS5040-20 (Extended features of OTP programming) for further details. The application note is available for download at the
austriamicrosystems website.
The analog and digital outputs will have the following conditions:
*) Vref = internal: ½ * VDD5V (pin #16) or external: V
**) VDD = positive supply voltage at receiving side (3.0 – 5.5V)
Revision 1.6, 3-Oct-06
analog
output
voltage
normal operation
magnetic field out of range
broken positive power supply
(V
broken power supply ground
(V
broken positive power supply
broken power supply ground
100%
10%
0%
(V
(V
90%
Status
Vref
OUT
OUT
OUT
OUT
Diagnostic Output Mode
pull down resistor at receiving side)
pull down resistor at receiving side)
0°
pull up resistor at receiving side)
pull up resistor at receiving side)
90°
180°
www.austriamicrosystems.com
10% - 90% Vref
< 10% Vref
DAC output is
switched to 0V
< 10% VDD
< 10% VDD
> 90% VDD
> 90% VDD
In an error case, the output
voltage is in the grey area
DAC output voltage
270°
DACref
(pin#9), depending on Ref_extEN bit in OTP (0=int., 1=ext.)
*)
**)
**)
**)
**)
,
360°
*)
normal
operating
area
angle
#0 - #1023 (0°-360°),
MagRngn = 1
#0 - #1023 (0°-360°)
out of range is signaled in status bits:
MagInc=MagDec=LIN=1, MagRngn= 0
with pull down resistor at DO (receiving
side), all bits read by the SSI will be
“0”-s, indicating a non-valid output
SSI digital output
In Diagnostic Output Mode (see Figure
9) the analog output of the internal DAC
ranges from 10% - 90% Vref
error case, either when the supply is
interrupted or when the magnetic field is
in the “red” range, (see Table 3) the
output is switched to 0V and thus
indicates the error condition.
Page 8 of 26
*)
. In an