as5145h austriamicrosystems, as5145h Datasheet - Page 11

• Manufacturer Part Number: as5145h
• Description: 12-bit Programmable Magnetic Rotary Encoder
• Manufacturer: austriamicrosystems

AS5145
Data Sheet - T i m i n g C h a r a c t e r i s t i c s
7 Timing Characteristics
T
Table 6. Timing Characteristics
www.austriamicrosystems.com/AS5145
Synchronous Serial Interface (SSI)
Pulse Width Modulation Output
Programming Conditions
AMB
t
Symbol
t
t
DOtristate
PW
CHARGE
= -40 to +150 ºC, V
DOactive
t
PW
t
T
f
DOvalid
t
f
f
CLKFE
f
WRITE
PROG
LOAD
READ
t
f
CLK/2
PWM
CSn
CLK
MAX
MIN
First data shifted to output register
Data output activated (logic high)
DD
Programming time per bit
Maximum pulse width
5V = 3.0 to 3.6V (3V operation) V
Minimum pulse width
Data output tri-state
Read-out frequency
Refresh time per bit
Start of data output
Pulse width of CSn
WRITE frequency
Data output valid
READ frequency
LOAD frequency
PWM frequency
Parameter
Rising edge of CLK shifts out one bit at a
After the last bit DO changes back to “tri-
Signal period = 4098µs ±10% at T
Clock frequency to read out serial data
Time between falling edge of CSn and
Time between falling edge of CSn and
Time between rising edge of CLK and
CSn =high; To initiate read-out of next
Position 4098d; angle 359.91 degrees
DD
Time to charge the cap after t
5V = 4.5 to 5.5V (5V operation), unless otherwise noted.
Data can be loaded at n x 2µs
Time to prog. a singe fuse bit
Read the data from the latch
Position 0d; angle 0 degree
Revision 1.11
Write the data to the latch
first falling edge of CLK
data output activated
data output valid
angular position
= -40 to +150ºC
Conditions
state”
time
PROG
AMB
3686
0.90
Min
500
500
500
220
>0
10
1
4096
Typ
244
1
4506
Max
1.10
100
413
100
268
500
2.5
2.5
20
1
Units
MHz
MHz
MHz
kHz
11 - 36
µs
µs
µs
ns
ns
ns
ns
ns
ns
Hz
µs