ZHCSKH7
November 2019
LDC1001
PRODUCTION DATA.
1
特性
2
应用
3
说明
轴距感测应用
4
修订历史记录
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Condition
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Inductive Sensing
7.3.2
Measuring RP With LDC1001
7.3.3
Measuring Inductance With LDC1001
7.4
Device Functional Modes
7.4.1
Power Modes
7.4.2
INTB Pin Modes
7.4.2.1
Comparator Mode
7.4.2.2
Wake-Up Mode
7.4.2.3
DRDY Mode
7.5
Programming
7.5.1
SPI Description
7.5.1.1
Extended SPI Transactions
7.6
Register Maps
7.6.1
Register Description
7.6.1.1
Revision ID (Address = 0x00)
7.6.1.2
RP_MAX (Address = 0x01)
7.6.1.3
RP_MIN (Address = 0x02)
7.6.1.4
Watchdog Timer Frequency (Address = 0x03)
7.6.1.5
LDC Configuration (Address = 0x04)
7.6.1.6
Clock Configuration (Address = 0x05)
7.6.1.7
Comparator Threshold High LSB (Address = 0x06)
7.6.1.8
Comparator Threshold High MSB (Address = 0x07)
7.6.1.9
Comparator Threshold Low LSB (Address = 0x08)
7.6.1.10
Comparator Threshold Low MSB (Address = 0x09)
7.6.1.11
INTB Pin Configuration (Address = 0x0A)
7.6.1.12
Power Configuration (Address = 0x0B)
7.6.1.13
Status (Address = 0x20)
7.6.1.14
Proximity Data LSB (Address = 0x21)
7.6.1.15
Proximity Data MSB (Address = 0x22)
7.6.1.16
Frequency Counter LSB (Address = 0x23)
7.6.1.17
Frequency Counter Mid-Byte (Address = 0x24)
7.6.1.18
Frequency Counter MSB (Address = 0x25)
8
Application and Implementation
8.1
Application Information
8.1.1
Calculation of RP_MIN and RP_MAX
8.1.1.1
RP_MAX
8.1.1.2
RP_MIN
8.1.2
Output Data Rate
8.1.3
Choosing Filter Capacitor (CFA and CFB Pins)
8.2
Typical Application
8.2.1
Axial Distance Sensing Using a PCB Sensor With LDC1001
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Sensor and Target
8.2.1.2.2
Calculating Sensor Capacitor
8.2.1.2.3
Choosing Filter Capacitor
8.2.1.2.4
Setting RP_MIN and RP_MAX
8.2.1.2.5
Calculating Minimum Sensor Frequency
8.2.1.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
器件和文档支持
11.1
文档支持
11.1.1
相关文档
11.2
支持资源
11.3
商标
11.4
静电放电警告
11.5
Glossary
12
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
NHR|16
MPDS426
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcskh7_oa
1
特性
无磁体操作
亚微米高精度
可调节感应范围(通过线圈设计实现)
更低的系统成本
远程传感器放置(从恶劣环境中将 LDC 去耦合)
高耐用性(通过非接触式操作实现)
不易受到环境干扰因素的影响(如污垢、灰尘、水、油)
模拟电源电压范围:4.75V 至 5.25V
I/O 电源电压范围:1.8V 至 5.25V
电源电流(不含 LC 振荡电路):1.7mA
R
P
分辨率:16 位
L 分辨率:24 位
LC 频率范围:5kHz 至 5MHz
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