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参数资料
| 型号： | AS5245 DB |
| 厂商： | ams |
| 文件页数： | 12/32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 |
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AS5245
Data Sheet - D e t a i l e d D e s c r i p t i o n
8.2 Synchronous Serial Interface (SSI)
Figure 5. Synchronous Serial Interface with Absolute Angular Position Data
CSn
t CLKFE
t CLKFE
T CLK/2
t CSn
CLK
1
8
18
1
LIN INC DEC
DO
D11
D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0 OCF COF
Mag Mag
Even
PAR
D11
t DO active
t DO valid
Angular Position Data
Status Bits
t DO Tristate
If CSn changes to logic low, Data Out (DO) will change from high impedance (tri-state) to logic high and the read-out will be initiated.
After a minimum time t CLK FE , data is latched into the output shift register with the first falling edge of CLK.
Each subsequent rising CLK edge shifts out one bit of data.
The serial word contains 18 bits, the first 12 bits are the angular information D[11:0], the subsequent 6 bits contain system information,
about the validity of data such as OCF, COF, LIN, Parity and Magnetic Field status (increase/decrease).
A subsequent measurement is initiated by a “high” pulse at CSn with a minimum duration of t CSn .
8.2.1
Serial Data Contents
D11:D0 – Absolute angular position data (MSB is clocked out first).
OCF – (Offset Compensation Finished). Logic high indicates the finished Offset Compensation Algorithm.
COF – (Cordic Overflow). Logic high indicates an out of range error in the CORDIC part. When this bit is set, the data at D9:D0 is invalid. The
absolute output maintains the last valid angular value. This alarm may be resolved by bringing the magnet within the X-Y-Z tolerance limits.
LIN – (Linearity Alarm). Logic high indicates that the input field generates a critical output linearity. When this bit is set, the data at D9:D0 may still
be used, but can contain invalid data. This warning may be resolved by bringing the magnet within the X-Y-Z tolerance limits.
Even Parity – Bit for transmission error detection of bits 1…17 (D11…D0, OCF, COF, LIN, MagINC, MagDEC). Placing the magnet above the
chip, angular values increase in clockwise direction by default.
Data D11:D0 is valid, when the status bits have the following configurations:
Table 7. Status Bit Outputs
OCF
COF
LIN
Mag INC
Mag DEC
Parity
0
0
1
0
0
0
1
1
0
Even checksum of bits
1:15
Note: MagInc=MagDec=1 is only recommended in YELLOW mode (see Table 8)
1
www.austriamicrosystems.com/AS5245
Revision 1.5
11 - 31
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相关代理商/技术参数 |
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|---|---|
| AS5245-HMFM | 功能描述:IC ENCODER ROTARY 32-QFN 制造商:ams 系列:汽车级，AEC-Q100 零件状态:有效 编码器类型:磁性 输出类型:正交（增量） 每转脉冲数:- 电压 - 电源:3 V ~ 3.6 V，4.5 V ~ 5.5 V 致动器类型:外磁铁，不含 棘爪:无 内置开关:无 安装类型:表面贴装 朝向:- 端子类型:SMD（SMT）接片 旋转寿命（最少次数）:- 标准包装:1 |
| AS5245-HMFP | 功能描述:IC ENCODER ROTARY 32QFN 制造商:ams 系列:汽车级，AEC-Q100 零件状态:有效 编码器类型:磁性 输出类型:正交（增量） 每转脉冲数:- 电压 - 电源:3 V ~ 3.6 V，4.5 V ~ 5.5 V 致动器类型:外磁铁，不含 棘爪:无 内置开关:无 安装类型:表面贴装 朝向:- 端子类型:SMD（SMT）接片 旋转寿命（最少次数）:- 标准包装:4,000 |
| AS5245HQFT | 制造商:ams 功能描述:QFN 32 |
| AS5245-HQFT | 功能描述:IC ENCODER PROG 32-QFN RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| AS5245HQFT500 | 制造商:ams 功能描述:T&R / QFN 32 |
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