参数资料
型号: AS5245 DB
厂商: ams
文件页数: 10/32页
文件大小: 0K
描述: BOARD DEMO AS5245
标准包装: 1
传感器类型: 磁性,旋转位置
传感范围: 360°
接口: USB
电源电压: 5V USB 或 9V
嵌入式: 是,MCU,8 位
已供物品: 板,线缆
已用 IC / 零件: AS5245
AS5245
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 AMB = -40 to +150oC, VDD5V= 3.0 to 3.6V (3V operation) VDD5V= 4.5 to 5.5V (5V operation), unless otherwise noted.
Table 5. Timing Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Synchronous Serial Interface (SSI)
t DOactive
t CLKFE
T CLK/2
t DOvalid
t DOtristate
t CSn
Data output activated (logic high)
First data shifted to output register
Start of data output
Data output valid
Data output tri-state
Pulse width of CSn
Time between falling edge of CSn and
data output activated
Time between falling edge of CSn and
first falling edge of CLK
Rising edge of CLK shifts out one bit at a
time
Time between rising edge of CLK and
data output valid
After the last bit DO changes back to “tri-
state”
CSn =high; To initiate read-out of next
angular position
500
500
500
100
413
100
ns
ns
ns
ns
ns
ns
f CLK
Read-out frequency
Clock frequency to read out serial data
>0
1
MHz
Pulse Width Modulation Output
f PWM
PW MIN
PW MAX
PWM frequency
Minimum pulse width
Maximum pulse width
Signal period = 4098μs ±10% at T AMB
= -40 to +150oC
Position 0d; angle 0 degree
Position 4098d; angle 359.91 degrees
220
0.90
3686
244
1
4096
268
1.10
4506
Hz
μs
μs
Programming Conditions
t PROG
Programming time per bit
Time to prog. a singe fuse bit
10
20
μs
t CHARGE
f LOAD
f READ
f WRITE
Refresh time per bit
LOAD frequency
READ frequency
WRITE frequency
Time to charge the cap after t PROG
Data can be loaded at n x 2μs
Read the data from the latch
Write the data to the latch
1
500
2.5
2.5
μs
kHz
MHz
MHz
www.austriamicrosystems.com/AS5245
Revision 1.5
9 - 31
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