ZHCSKH7 November   2019 LDC1001

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     轴距感测应用
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Condition
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Inductive Sensing
      2. 7.3.2 Measuring RP With LDC1001
      3. 7.3.3 Measuring Inductance With LDC1001
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power Modes
      2. 7.4.2 INTB Pin Modes
        1. 7.4.2.1 Comparator Mode
        2. 7.4.2.2 Wake-Up Mode
        3. 7.4.2.3 DRDY Mode
    5. 7.5 Programming
      1. 7.5.1 SPI Description
        1. 7.5.1.1 Extended SPI Transactions
    6. 7.6 Register Maps
      1. 7.6.1 Register Description
        1. 7.6.1.1  Revision ID (Address = 0x00)
        2. 7.6.1.2  RP_MAX (Address = 0x01)
        3. 7.6.1.3  RP_MIN (Address = 0x02)
        4. 7.6.1.4  Watchdog Timer Frequency (Address = 0x03)
        5. 7.6.1.5  LDC Configuration (Address = 0x04)
        6. 7.6.1.6  Clock Configuration (Address = 0x05)
        7. 7.6.1.7  Comparator Threshold High LSB (Address = 0x06)
        8. 7.6.1.8  Comparator Threshold High MSB (Address = 0x07)
        9. 7.6.1.9  Comparator Threshold Low LSB (Address = 0x08)
        10. 7.6.1.10 Comparator Threshold Low MSB (Address = 0x09)
        11. 7.6.1.11 INTB Pin Configuration (Address = 0x0A)
        12. 7.6.1.12 Power Configuration (Address = 0x0B)
        13. 7.6.1.13 Status (Address = 0x20)
        14. 7.6.1.14 Proximity Data LSB (Address = 0x21)
        15. 7.6.1.15 Proximity Data MSB (Address = 0x22)
        16. 7.6.1.16 Frequency Counter LSB (Address = 0x23)
        17. 7.6.1.17 Frequency Counter Mid-Byte (Address = 0x24)
        18. 7.6.1.18 Frequency Counter MSB (Address = 0x25)
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Calculation of RP_MIN and RP_MAX
        1. 8.1.1.1 RP_MAX
        2. 8.1.1.2 RP_MIN
      2. 8.1.2 Output Data Rate
      3. 8.1.3 Choosing Filter Capacitor (CFA and CFB Pins)
    2. 8.2 Typical Application
      1. 8.2.1 Axial Distance Sensing Using a PCB Sensor With LDC1001
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Sensor and Target
          2. 8.2.1.2.2 Calculating Sensor Capacitor
          3. 8.2.1.2.3 Choosing Filter Capacitor
          4. 8.2.1.2.4 Setting RP_MIN and RP_MAX
          5. 8.2.1.2.5 Calculating Minimum Sensor Frequency
        3. 8.2.1.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 文档支持
      1. 11.1.1 相关文档
    2. 11.2 支持资源
    3. 11.3 商标
    4. 11.4 静电放电警告
    5. 11.5 Glossary
  12. 12机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.6 Register Maps

Table 1. Register Map(1)(2)

REGISTER NAME ADDRESS TYPE(3) DEFAULT BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
Device ID 0x00 RO 0x84 Device ID
RP_MAX 0x01 R/W 0x0E RP Maximum
RP_MIN 0x02 R/W 0x14 RP Minimum
Watchdog Timer Frequency 0x03 R/W 0x45 Min Sensor Frequency
LDC Configuration 0x04 R/W 0x1B Reserved (000) Amplitude RESPONSE_TIME
Clock Configuration 0x05 R/W 0x01 Reserved (00'0000) CLK_SEL CLK_PD
Comparator Threshold High LSB 0x06 R/W 0xFF Threshold High LSB
Comparator Threshold High MSB 0x07 R/W 0xFF Threshold High MSB
Comparator Threshold Low LSB 0x08 R/W 0x00 Threshold Low LSB
Comparator Threshold Low MSB 0x09 R/W 0x00 Threshold Low MSB
INTB pin Configuration 0x0A R/W 0x00 Reserved (0'0000) INTB_MODE
Power Configuration 0x0B R/W 0x00 Reserved (000'0000) PWR_MODE
Status 0x20 RO OSC Dead DRDY Wake-up Comparator Don't Care
Proximity 0x21 RO Proximity Data[ 7:0] Data LSB
Proximity 0x22 RO Proximity Data [15:8] Data MSB
Frequency Counter Data LSB 0x23 RO FCOUNT LSB
Frequency Counter Data Mid-Byte 0x24 RO FCOUNT Mid Byte
Frequency Counter Data MSB 0x25 RO FCOUNT MSB
(1) Values of register fields which are unused should be set to default values only.
(2) Registers 0x01 through 0x05 are Read Only when the part is awake (PWR_MODE bit is SET)
(3) R/W: Read/Write. RO: Read Only. WO: Write Only.