参数资料
型号: AS5043-ASST
厂商: ams
文件页数: 10/37页
文件大小: 0K
描述: IC ENCODER PROG 10-BIT 16-SSOP
应用说明: AS5000 Series Magnet Selection Guide
AS5000 Series Magnets for Extended Vertical Range
标准包装: 1
传感范围: 45mT ~ 75mT
类型: 线性,旋转编码器 - 可编程
电源电压: 3 V ~ 3.6 V,4.5 V ~ 5.5 V
电流 - 电源: 21mA
电流 - 输出(最大): 4mA
输出类型: 模拟,数字
特点: 可编程
工作温度: -40°C ~ 125°C
封装/外壳: 16-SSOP(0.209",5.30mm 宽)
供应商设备封装: 16-SSOP
包装: 标准包装
产品目录页面: 804 (CN2011-ZH PDF)
其它名称: AS5043-ASSTDKR
AS5043
Data Sheet – Daisy Chain Mode
10 Daisy Chain Mode
The Daisy Chain Mode allows connection of several AS5043’s in series, while still keeping just one digital input for data
transfer (see “Data IN” in Figure 6 ). This mode is accomplished by connecting the data output (DO; pin 9) to the data
input (PROG; pin 8) of the subsequent device. An RC filter must be implemented between each PROG pin of device n
and DO pin of device n+1, to prevent then encoders to enter the alignment mode, in case of ESD discharge, long cables,
not conform signal levels or shape. Using the values R=100R and C=1nF allow a max. CLK frequency of 1MHz on the
whole chain. The serial data of all connected devices is read from the DO pin of the first device in the chain. The length of
the serial bit stream increases with every connected device, it is
n * (16+1) bits:
e.g. 34 bit for two devices, 51 bit for three devices, etc…
The last data bit of the first device (Parity) is followed by a dummy bit and the first data bit of the second device (D9),
etc… (see Figure 7).
Figure 6: Daisy Chain Hardware Configuration
CSn
CSn
CSn
CSn
MCU
CLK
DI
CLK
DO
AS5043
PROG
100R
1nF
GND
CLK
DO
PROG
AS5043
100R
1nF
GND
CLK
DO
PROG
AS5043
GND
Figure 7: Daisy Chain Data Transfer Timing Diagram
CSn
t C LK F E
T C LK /2
C LK
1
8
16
D
1
2
3
DO
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
OCF
COF
LIN
M ag
IN C
M ag E ve n
DEC PAR
D9
D8
D7
t D O active
t D O valid
A ngular P osition D ata
1
st
D evice
S tatus B its
A ngular P osition D at a
2 nd D evice
www.austriamicrosystems.com
Revision 1.80
9 – 36
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