as5040 austriamicrosystems, as5040 Datasheet - Page 7

• Manufacturer Part Number: as5040
• Description: 10-bit Programmable Magnetic Rotary Encoder
• Manufacturer: austriamicrosystems

AS5040 10-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER
Pulse Width Modulation Output
(operating conditions: T
Incremental Outputs
(operating conditions: T
3.7
(operating conditions: T
Revision 1.8
Parameter
PWM frequency
Minimum pulse width
Maximum pulse width
Parameter
Incremental outputs valid after
power-up
Directional indication valid
Parameter
Programming enable time
Write data start
Write data valid
Load programming data
Rise time of V
Hold time of V
Write data – programming CLK
CLK pulse width
Hold time of Vprog after
programming
Programming voltage
Programming voltage off level
Programming current
Analog read CLK
Programmed zener voltage (log.1)
Unprogrammed zener voltage (log. 0)
Programming Conditions
PROG
PROG
before CLK
after CLK
am b
am b
am b
= -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation) unless otherwise noted)
= -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation) unless otherwise noted)
= -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation) unless otherwise noted)
PROG
PROG
PROG
Symbol
Symbol
t
outputs valid
PW
PW
Incremental
t
f
Dir valid
PWM
MAX
MIN
V
t
t
t
CLK
Symbol
V
Data in valid
V
CLK
unprogrammed
Prog enable
Load PROG
V
t
t
t
I
programmed
finished
t
t
Data in
PROG
PROG
ProgOff
PROG
PrgR
PrgH
PROG
PROG
Aread
0.927 0.976
0.878 0.976
Min
0.95
Min
973
1024
Typ
Typ
Min
250
1.8
7.3
1
2
2
3
0
0
2
0
1
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1.024
1.074
1075
Max
Max
1.05
500
500
Typ
7.4
2
Unit
Unit
KHz
µs
µs
ns
ns
Max
250
130
2.2
7.5
100
100
Note
Signal period = 1025µs ±5% at T
=1025µs ±10% at T
Position 0d; angle 0 degree
Position 1023d; angle 359.65 degree
Note
Time between first falling edge of CSn after power-up
and valid incremental outputs
Time between rising or falling edge of LSB output and
valid directional indication
5
1
Unit
kHz
mA
kHz
mV
µs
µs
µs
µs
µs
µs
µs
ns
V
V
V
Note
Time between rising edge at Prog
pin and rising edge of CSn
Write data at the rising edge of
CLK
During programming; 16 clock cycles
Programmed data is available after
next power-on
Must be switched off after zapping
Line must be discharged to this level
During programming
Analog readback mode
V
mode (see 10.6)
amb
Ref
-V
= -40 to +125°C
PROG
PROG
during analog readback
amb
= 25°C
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