ZHCSDS7A May 2015 – June 2015 LDC1101
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 簡化電路原理圖
- 5 修訂歷史記錄
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3 Feature Description
- 8.4
Device Functional Modes
- 8.4.1 Measurement Modes
- 8.4.2 RP+L Measurement Mode
- 8.4.3 High Resolution L (LHR) Measurement Mode
- 8.4.4 Reference Count Setting
- 8.4.5 L-Only Measurement Operation
- 8.4.6 Minimum Sensor Frequency and Watchdog Setting
- 8.4.7 Low Power Modes
- 8.4.8 Status Reporting
- 8.4.9 Switch Functionality and INTB Reporting
- 8.5 Programming
- 8.6
Register Maps
- 8.6.1 Individual Register Listings
- 8.6.2 Register RP_SET (address = 0x01) [reset = 0x07]
- 8.6.3 Register TC1 (address = 0x02) [reset = 0x90]
- 8.6.4 Register TC2 (address = 0x03) [reset = 0xA0]
- 8.6.5 Register DIG_CONF (address = 0x04) [reset = 0x03]
- 8.6.6 Register ALT_CONFIG (address = 0x05) [reset = 0x00]
- 8.6.7 Register RP_THRESH_HI_LSB (address = 0x06) [reset = 0x00]
- 8.6.8 Register RP_THRESH_HI_MSB (address = 0x07) [reset = 0x00]
- 8.6.9 Register RP_THRESH_LO_LSB (address = 0x08) [reset = 0x00]
- 8.6.10 Register RP_THRESH_LO_MSB (address = 0x09) [reset = 0x00]
- 8.6.11 Register INTB_MODE (address = 0x0A) [reset = 0x00]
- 8.6.12 9.Register START_CONFIG (address = 0x0B) [reset = 0x01]
- 8.6.13 Register D_CONFIG (address = 0x0C) [reset = 0x00]
- 8.6.14 Register L_THRESH_HI_LSB (address = 0x16) [reset = 0x00]
- 8.6.15 Register L_THRESH_HI_MSB (address = 0x17) [reset = 0x00]
- 8.6.16 Register L_THRESH_LO_LSB (address = 0x18) [reset = 0x00]
- 8.6.17 Register L_THRESH_LO_MSB (address = 0x19) [reset = 0x00]
- 8.6.18 Register STATUS (address = 0x020 [reset = 0x00]
- 8.6.19 Register RP_DATA_LSB (address = 0x21) [reset = 0x00]
- 8.6.20 Register RP_DATA_MSB (address = 0x22) [reset = 0x00]
- 8.6.21 Register L_DATA_LSB (address = 0x23) [reset = 0x00]
- 8.6.22 Register L_DATA_MSB (address = 0x24) [reset = 0x00]
- 8.6.23 Register LHR_RCOUNT_LSB (address = 0x30) [reset = 0x00]
- 8.6.24 Register LHR_RCOUNT_MSB (address = 0x31) [reset = 0x00]
- 8.6.25 Register LHR_OFFSET_LSB (address = 0x32) [reset = 0x00]
- 8.6.26 Register LHR_OFFSET_MSB (address = 0x33) [reset = 0x00]
- 8.6.27 Register LHR_CONFIG (address = 0x34) [reset = 0x00]
- 8.6.28 Register LHR_DATA_LSB (address = 0x38) [reset = 0x00]
- 8.6.29 Register LHR_DATA_MID (address = 0x39) [reset = 0x00]
- 8.6.30 Register LHR_DATA_MSB (address = 0x3A) [reset = 0x00]
- 8.6.31 Register LHR_STATUS (address = 0x3B) [reset = 0x00]
- 8.6.32 Register RID (address = 0x3E) [reset = 0x02]
- 8.6.33 Register DEVICE_ID (address = 0x3F) [reset = 0xD4]
-
9 Application and Implementation
- 9.1
Application Information
- 9.1.1 Theory of Operation
- 9.1.2 RP+L Mode Calculations
- 9.1.3 LDC1101 RP Configuration
- 9.1.4 Setting Internal Time Constant 1
- 9.1.5 Setting Internal Time Constant 2
- 9.1.6 MIN_FREQ and Watchdog Configuration
- 9.1.7 RP+L Sample Rate Configuration with RESP_TIME
- 9.1.8 High Resolution Inductance Calculation (LHR mode)
- 9.1.9 LHR Sample Rate Configuration with RCOUNT
- 9.1.10 Setting RPMIN for LHR Measurements
- 9.1.11 Sensor Input Divider
- 9.1.12 Reference Clock Input
- 9.1.13 INTB Reporting on SDO
- 9.1.14 DRDY (Data Ready) Reporting on SDO
- 9.1.15 Comparator Functionality
- 9.2 Typical Application
- 9.1
Application Information
- 10Power Supply Recommendations
- 11Layout
- 12器件和文檔支持
- 13機械、封裝和可訂購信息
1 特性
2 應用
- 高速輪齒計數
- 高速事件計數
- 電機轉速感測
- 家用電器、汽車和消費類應用中的旋鈕和撥盤
- 家用電器、汽車和消費類應用中的人機界面 (HMI)
- 按鈕和鍵盤
- 電機控制
- 金屬探測
3 說明
LDC1101 是一款 1.8V 至 3.3V、高分辨率電感數字轉換器，可對位置、旋轉或運動進行短距離、高速、無觸點感測，即使存在污垢或灰塵也能夠實現可靠、精確的測量，非常適合戶外或嚴苛環境。
LDC1101 特有雙感應測量內核，可在執行 > 150ksps 的 16 位 RP 和 L 測量的同時，進行分辨率高達 24 位的高分辨率 L 測量，采樣速率可高達 180ksps 以上。 LDC1101 包含閾值比較功能，該功能可在器件運行時動態更新。
電感感測技術可實現對線性/角位置、位移、運動、壓縮、振動、金屬成分以及市面上包括汽車、消費類、計算機、工業、醫療和通信應用在內的很多其他應用的高精度測量。 電感感測技術能夠以低于其他競爭對手解決方案的成本提供更為出色的性能和可靠性。
LDC1101 在小型 3mm × 3mm 10 引腳 VSON 封裝內即可提供這些電感感測技術優勢。 微控制器可使用 4 引腳 SPI™輕松配置 LDC1101。
器件信息(1)
| 器件型號 | 封裝 | 封裝尺寸（標稱值） |
|---|---|---|
| LDC1101 | VSON (10) | 3.00mm × 3.00mm |
- 如需了解所有可用封裝，請見數據表末尾的可訂購產品附錄。
4 簡化電路原理圖
