AS5043_1 AMSCO [austriamicrosystems AG], AS5043_1 Datasheet - Page 11

• Manufacturer Part Number: AS5043_1
• Description: Programmable 360 Magnetic Angle Encoder with Absolute SSI and Analog Outputs
• Manufacturer: AMSCO [austriamicrosystems AG]

AS5043
Data Sheet – Analog Output
11.1.2 Diagnostic Output Mode
Figure 9: Diagnostic Output Mode
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)
www.austriamicrosystems.com
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
(V
(V
OUT
OUT
analog
output
voltage
OUT
OUT
100%
10%
0%
90%
Vref
pull down resistor at receiving side)
pull down resistor at receiving side)
pull up resistor at receiving side)
pull up resistor at receiving side)
0°
Status
90°
180°
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
270°
DAC Output Voltage
DACref
Revision 1.80
*)
**)
**)
**)
**)
(pin#9), depending on Ref_extEN bit in OTP (0=int., 1=ext.)
,
360°
*)
normal
operating
area
angle
In Diagnostic Output Mode (see Figure 9)
the analog output of the internal DAC ranges
from 10% - 90% Vref
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.
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
#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 an error case,
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