SDAA172 March   2026 AM13E23019

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Schematic Design
    1. 2.1  Package and Device Selection
    2. 2.2  Digital Peripherals
      1. 2.2.1 GPIO
      2. 2.2.2 XBARs
      3. 2.2.3 EPI
      4. 2.2.4 MCAN
      5. 2.2.5 UNICOMM
        1. 2.2.5.1 UART
        2. 2.2.5.2 I2C
        3. 2.2.5.3 SPI
    3. 2.3  Control Peripherals
      1. 2.3.1 eQEP and eCAP
      2. 2.3.2 Timers
    4. 2.4  Analog Peripherals
      1. 2.4.1 Choosing Analog Pins
      2. 2.4.2 Analog Voltage Reference
      3. 2.4.3 ADC Inputs
    5. 2.5  Multiplexed Peripherals
    6. 2.6  Power
      1. 2.6.1 Discrete Power Solution
      2. 2.6.2 Power Decoupling and Filtering
      3. 2.6.3 Analog Voltage Reference
      4. 2.6.4 VSS/VSSA
      5. 2.6.5 Power Consumption
    7. 2.7  Reset
      1. 2.7.1 nRST Pin
      2. 2.7.2 BSL Invoke Pin
      3. 2.7.3 WAKE from LPM Pins
      4. 2.7.4 WAKE From STOP/STANDBY Modes
      5. 2.7.5 WAKE from SHUTDOWN Mode
      6. 2.7.6 AM13E230x Hardware Platform Examples
    8. 2.8  Clocking
      1. 2.8.1 Internal Oscillators
      2. 2.8.2 External Crystal Oscillator (XTAL)
      3. 2.8.3 Digital Clock Input
      4. 2.8.4 Output Clock Generation
    9. 2.9  Debugging and Emulation
      1. 2.9.1 Debug Interfaces
        1. 2.9.1.1 JTAG and SW-DP
        2. 2.9.1.2 Trace
      2. 2.9.2 Debug Probes
    10. 2.10 Boot Interfaces
      1. 2.10.1 UART Bootloader
      2. 2.10.2 I2C Bootloader
      3. 2.10.3 MCAN Bootloader
    11. 2.11 Unused Pins
  6. 3PCB Layout Design
    1. 3.1 Layout Design Overview
      1. 3.1.1 Recommended Layout Practices
      2. 3.1.2 Board Dimensions
      3. 3.1.3 Layer Stackup
        1. 3.1.3.1 4-Layer Stackup
        2. 3.1.3.2 6-Layer Stackup
    2. 3.2 Vias
    3. 3.3 Recommended Board Layout
    4. 3.4 Placing Components
    5. 3.5 Ground Planes
    6. 3.6 Signal Routing Traces
    7. 3.7 Thermal Considerations
  7. 4EOS, EMI/EMC, ESD Considerations
    1. 4.1 Electrical Overstress
    2. 4.2 EMI and EMC
    3. 4.3 Electrostatic Discharge
  8. 5Summary and Checklist
  9. 6References
  10. 7Revision History

2.4 Analog Peripherals

This section describes the critical design choices when implementing analog peripherals on the device.

AM13E230x devices feature the following analog peripherals:

  • Analog to Digital Converter (ADC)
  • Programmable Gain Amplifier (PGA)
  • Temperature Sensor
  • Comparator Subsystem (CMPSS)
    • Each CMPSS contains 8bit Digital to Analog Converter (DAC) and 2 digital filters
    • Some CMPSS contain buffered DAC OUT