JAJSIK5D February   2020  – February 2024 AWR2243

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 機能ブロック図
  6. 5 Device Comparison
    1. 5.1 Related Products
  7. 6 Terminal Configuration and Functions
    1. 6.1 Pin Diagram
    2. 6.2 Signal Descriptions
  8. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Power-On Hours (POH)
    4. 7.4 Recommended Operating Conditions
    5. 7.5 Power Supply Specifications
    6. 7.6 Power Consumption Summary
    7. 7.7 RF Specification
    8. 7.8 Thermal Resistance Characteristics for FCBGA Package [ABL0161]
    9. 7.9 Timing and Switching Characteristics
      1. 7.9.1 Power Supply Sequencing and Reset Timing
      2. 7.9.2 Synchronized Frame Triggering
      3. 7.9.3 Input Clocks and Oscillators
        1. 7.9.3.1 Clock Specifications
      4. 7.9.4 Multibuffered / Standard Serial Peripheral Interface (MibSPI)
        1. 7.9.4.1 Peripheral Description
          1. 7.9.4.1.1 SPI Timing Conditions
          2. 7.9.4.1.2 SPI Peripheral Mode Switching Parameters (SPICLK = input, SPISIMO = input, and SPISOMI = output)
          3. 7.9.4.1.3 SPI Peripheral Mode Timing Requirements (SPICLK = input, SPISIMO = input, and SPISOMI = output)
        2. 7.9.4.2 Typical Interface Protocol Diagram (Peripheral Mode)
      5. 7.9.5 Inter-Integrated Circuit Interface (I2C)
        1. 7.9.5.1 I2C Timing Requirements
      6. 7.9.6 LVDS Interface Configuration
        1. 7.9.6.1 LVDS Interface Timings
      7. 7.9.7 General-Purpose Input/Output
        1. 7.9.7.1 Switching Characteristics for Output Timing versus Load Capacitance (CL)
      8. 7.9.8 Camera Serial Interface (CSI)
        1. 7.9.8.1 CSI Switching Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Subsystems
      1. 8.3.1 RF and Analog Subsystem
        1. 8.3.1.1 Clock Subsystem
        2. 8.3.1.2 Transmit Subsystem
        3. 8.3.1.3 Receive Subsystem
      2. 8.3.2 Host Interface
    4. 8.4 Other Subsystems
      1. 8.4.1 ADC Data Format Over CSI2 Interface
      2. 8.4.2 ADC Channels (Service) for User Application
        1. 8.4.2.1 GPADC Parameters
  10. 9 Monitoring and Diagnostic Mechanisms
  11. 10Applications, Implementation, and Layout
    1. 10.1 Application Information
    2. 10.2 Short-, Medium-, and Long-Range Radar
    3. 10.3 Imaging Radar using Cascade Configuration
    4. 10.4 Reference Schematic
  12. 11Device and Documentation Support
    1. 11.1 Device Nomenclature
    2. 11.2 Tools and Software
    3. 11.3 Documentation Support
    4. 11.4 サポート・リソース
    5. 11.5 Trademarks
    6. 11.6 静電気放電に関する注意事項
    7. 11.7 Export Control Notice
    8. 11.8 用語集
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Packaging Information

7.9.5.1 I2C Timing Requirements

 (1)STANDARD MODEFAST MODEUNIT
MINMAXMINMAX
tc(SCL)Cycle time, SCL102.5μs
tsu(SCLH-SDAL)Setup time, SCL high before SDA low
(for a repeated START condition)		4.70.6μs
th(SCLL-SDAL)Hold time, SCL low after SDA low
(for a START and a repeated START condition)		40.6μs
tw(SCLL)Pulse duration, SCL low4.71.3μs
tw(SCLH)Pulse duration, SCL high40.6μs
tsu(SDA-SCLH)Setup time, SDA valid before SCL high250100μs
th(SCLL-SDA)Hold time, SDA valid after SCL low03.45(1)00.9μs
tw(SDAH)Pulse duration, SDA high between STOP and START conditions4.71.3μs
tsu(SCLH-SDAH)Setup time, SCL high before SDA high
(for STOP condition)		40.6μs
tw(SP)Pulse duration, spike (must be suppressed)050ns
Cb(2)(3)Capacitive load for each bus line400400pF
(1) The I2C pins SDA and SCL do not feature fail-safe I/O buffers. These pins could potentially draw current when the device is powered down.
(2) The maximum th(SDA-SCLL) for I2C bus devices has only to be met if the device does not stretch the low period (tw(SCLL)) of the SCL signal.
(3) Cb = total capacitance of one bus line in pF. If mixed with fast-mode devices, faster fall-times are allowed.
AWR2243 I2C Timing DiagramFigure 7-7 I2C Timing Diagram
Note:
  • A device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the VIHmin of the SCL signal) to bridge the undefined region of the falling edge of SCL.
  • The maximum th(SDA-SCLL) has only to be met if the device does not stretch the LOW period (tw(SCLL)) of the SCL signal. E.A Fast-mode I2C-bus device can be used in a Standard-mode I2C-bus system, but the requirement tsu(SDA-SCLH) ≥ 250 ns must then be met. This will automatically be the case if the device does not stretch the LOW period of the SCL signal. If such a device does stretch the LOW period of the SCL signal, it must output the next data bit to the SDA line tr max + tsu(SDA-SCLH).