SWRS188C May   2017  – April 2020 AWR1243

PRODUCTION DATA.  

  1. 1Device Overview
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
    4. 1.4 Functional Block Diagram
  2. 2Revision History
  3. 3Device Comparison
    1. 3.1 Related Products
  4. 4Terminal Configuration and Functions
    1. 4.1 Pin Diagram
    2. 4.2 Signal Descriptions
      1. Table 4-1 Signal Descriptions
  5. 5Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Power-On Hours (POH)
    4. 5.4 Recommended Operating Conditions
    5. 5.5 Power Supply Specifications
    6. 5.6 Power Consumption Summary
    7. 5.7 RF Specification
    8. 5.8 Thermal Resistance Characteristics for FCBGA Package [ABL0161]
    9. 5.9 Timing and Switching Characteristics
      1. 5.9.1 Power Supply Sequencing and Reset Timing
      2. 5.9.2 Synchronized Frame Triggering
      3. 5.9.3 Input Clocks and Oscillators
        1. 5.9.3.1 Clock Specifications
      4. 5.9.4 Multibuffered / Standard Serial Peripheral Interface (MibSPI)
        1. 5.9.4.1 Peripheral Description
          1. Table 5-8  SPI Timing Conditions
          2. Table 5-9  SPI Slave Mode Switching Parameters (SPICLK = input, SPISIMO = input, and SPISOMI = output)
          3. Table 5-10 SPI Slave Mode Timing Requirements (SPICLK = input, SPISIMO = input, and SPISOMI = output)
        2. 5.9.4.2 Typical Interface Protocol Diagram (Slave Mode)
      5. 5.9.5 LVDS Interface Configuration
        1. 5.9.5.1 LVDS Interface Timings
      6. 5.9.6 General-Purpose Input/Output
        1. Table 5-12 Switching Characteristics for Output Timing versus Load Capacitance (CL)
      7. 5.9.7 Camera Serial Interface (CSI)
        1. Table 5-13 CSI Switching Characteristics
  6. 6Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Subsystems
      1. 6.3.1 RF and Analog Subsystem
        1. 6.3.1.1 Clock Subsystem
        2. 6.3.1.2 Transmit Subsystem
        3. 6.3.1.3 Receive Subsystem
      2. 6.3.2 Host Interface
    4. 6.4 Other Subsystems
      1. 6.4.1 A2D Data Format Over CSI2 Interface
  7. 7Applications, Implementation, and Layout
    1. 7.1 Application Information
    2. 7.2 Short-, Medium-, and Long-Range Radar
    3. 7.3 Imaging Radar using Cascade Configuration
    4. 7.4 Reference Schematic
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Stackup Details
  8. 8Device and Documentation Support
    1. 8.1 Device Nomenclature
    2. 8.2 Tools and Software
    3. 8.3 Documentation Support
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  9. 9Mechanical, Packaging, and Orderable Information
    1. 9.1 Packaging Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • ABL|161
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Clock Specifications

An external crystal is connected to the device pins. Figure 5-4 shows the crystal implementation.

AWR1243 crystal_implementation_awr12.gifFigure 5-4 Crystal Implementation

NOTE

The load capacitors, Cf1 and Cf2 in Figure 5-4, should be chosen such that Equation 1 is satisfied. CL in the equation is the load specified by the crystal manufacturer. All discrete components used to implement the oscillator circuit should be placed as close as possible to the associated oscillator CLKP and CLKM pins.Note that Cf1 and Cf2 include the parasitic capacitances due to PCB routing.

Equation 1. AWR1243 equation_1.gif

Table 5-6 lists the electrical characteristics of the clock crystal.

Table 5-6 Crystal Electrical Characteristics (Oscillator Mode)

NAME DESCRIPTION MIN TYP MAX UNIT
fP Parallel resonance crystal frequency 40 MHz
CL Crystal load capacitance 5 8 12 pF
ESR Crystal ESR 50 Ω
Temperature range Expected temperature range of operation –40 150 ºC
Frequency tolerance Crystal frequency tolerance(1)(2) –200 200 ppm
Drive level 50 200 µW
The crystal manufacturer's specification must satisfy this requirement.
Includes initial tolerance of the crystal, drift over temperature, aging and frequency pulling due to incorrect load capacitance.

In the case where an external clock is used as the clock resource, the signal is fed to the CLKP pin only; CLKM is grounded. The phase noise requirement is very important when a 40-MHz clock is fed externally. Table 5-7 lists the electrical characteristics of the external clock signal.

Table 5-7 External Clock Mode Specifications

PARAMETER SPECIFICATION UNIT
MIN TYP MAX
Input Clock:
External AC-coupled sine wave or DC-coupled square wave
Phase Noise referred to 40 MHz
Frequency 40 MHz
AC-Amplitude 700 1200 mV (pp)
DC-trise/fall 10 ns
Phase Noise at 1 kHz –132 dBc/Hz
Phase Noise at 10 kHz –143 dBc/Hz
Phase Noise at 100 kHz –152 dBc/Hz
Phase Noise at 1 MHz –153 dBc/Hz
Duty Cycle 35 65 %
Freq Tolerance –50 50 ppm