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| 型号： | AS5040 PB |
| 厂商： | ams |
| 文件页数： | 14/34页 |
| 文件大小： | 0K |
| 描述： | BOARD PROGRAM AS5040 |
| 特色产品： | AS5140 – Automotive Rotary Encoder IC AS5145 – Automotive Rotary Encoder IC |
| 标准包装： | 1 |
| 模块/板类型： | ZIF 插口 |
| 适用于相关产品： | AS5000 编程器，AS5040 |
| 相关产品： | AS5040-ASSTDKR-ND - IC ENCODER PROG 10-BIT 16-SSOP AS5040-ASSTCT-ND - IC ENCODER PROG 10-BIT 16-SSOP AS5040-ASSTTR-ND - IC ENCODER PROG 10-BIT 16-SSOP |
| 其它名称： | AS5045 PB AS5140H PB AS5145 PB |
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AS5040
Data Sheet
Figure 8: Incremental Output Modes
Q uad A/B-M ode
M echanical
Zero Position
Rotation Direction
Change
M echanical
Zero Position
A
B
Index=0
Index
1LSB
H yst =
2 LSB
Step / Dir-Mode
Index=1
3 LSB
LSB
Dir
CSn
t
Increm ental outputs valid
Clockwise cw
t
D ir valid
Counterclockwise ccw
Incremental Power-up Lock Option
After power-up, the incremental outputs can optionally be locked or unlocked, depending on the status of the CSn pin:
CSn = low at power-up:
CSn has an internal pull-up resistor and must be externally pulled low (R ext ≤ 5k Ω ). If Csn is low at power-up,
the incremental outputs (A, B, Index) will be high until the internal offset compensation is finished.
This unique state (A=B=Index = high) may be used as an indicator for the external controller to shorten the
waiting time at power-up. Instead of waiting for the specified maximum power up-time (0), the controller can
start requesting data from the AS5040 as soon as the state (A=B=Index = high) is cleared.
CSn = high or open at power-up:
In this mode, the incremental outputs (A, B, Index) will remain at logic high state, until CSn goes low or a low
pulse is applied at CSn. This mode allows intentional disabling of the incremental outputs until for example the
system microcontroller is ready to receive data.
Incremental Output Hysteresis
To avoid flickering incremental outputs at a stationary magnet position, a hysteresis is introduced.
In case of a rotational direction change, the incremental outputs have a hysteresis of 2 LSB.
Regardless of the programmed incremental resolution, the hysteresis of 2 LSB always corresponds to the highest
resolution of 10 bit. In absolute terms, the hysteresis is set to 0.704 degrees for all resolutions.
For constant rotational directions, every magnet position change is indicated at the incremental outputs (see
Figure 9). If for example the magnet turns clockwise from position ?x+3“ to ?x+4“, the incremental output would also
indicate this position accordingly.
A change of the magnet’s rotational direction back to position ?x+3“ means, that the incremental output still remains
unchanged for the duration of 2 LSB, until position ?x+2“ is reached. Following this direction, the incremental outputs
will again be updated with every change of the magnet position.
www.austriamicrosystems.com
Revision 2.10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS5040-SS_EK_AB | 功能描述:AS5040 - Magnetic, Rotary Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，旋转位置 感应范围:360° 接口:串行 灵敏度:- 电压 - 电源:9V 嵌入式:否 所含物品:板 使用的 IC/零件:AS5040 标准包装:1 |
| AS5040-SS_EK_DB | 功能描述:AS5040 - Magnetic, Rotary Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，旋转位置 感应范围:360° 接口:USB 灵敏度:- 电压 - 电源:5V USB 或 9V 嵌入式:是，MCU，8 位 所含物品:板，线缆 使用的 IC/零件:AS5040 标准包装:1 |
| AS5040-SS_EK_PB | 功能描述:AS5000 Programmer, AS5040 - ZIF Socket 制造商:ams 系列:- 零件状态:有效 模块/板类型:ZIF 插口 配套使用产品/相关产品:AS5000 编程器，AS5040 标准包装:1 |
| AS-5041 | 制造商:Bud Industries Inc 功能描述: |
| AS-5042-A | 功能描述:机架和机柜配件 20" SLIDE SET 3PC RoHS:否 制造商:Bivar 产品:Rack Accessories 面板空间: 颜色:Black |
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