1.1 Features

  • Xplained Pro Extension Features:
    • Follow existing latest version of Xplained Pro platform specification
    • PCB dimension: 60 mm x 60 mm (not including the connector)
    • One female standard 20-pin extension connector
    • ID chip
    • Four mounting holes with GND
    • Two test jig holes
    • Four rubber feet
    • Power measurement
  • Power from Xplained Pro Standard Ext Header:
    • Boost to 5.25V for powering on-board microcontrollers (MCUs) and analog circuit
    • LDO to 3V for powering OLED
    • Level converter for I2C interface to the external host MCU
    • Level converter for clock sync signal between external MCU and on-board MCUs
  • Microcontrollers:
    • On-board ATtiny1617 to act as the board controller, signal generator and periodic noise generator
    • On board ATtiny416 to act as the white noise generator
  • Analog Features:
    • 1-channel analog signal that can be switched between:
      • Sine Wave: 1 - 150 Hz frequency, 0.05 - 2.5V VPP, 0 - 2.5V offset
      • Square Wave: 0.5 - 150 Hz frequency, 0.05 - 2.5V VPP, 0 - 2.5V offset
      • DC Voltage: 0.05 - 2.5V
      • FSK: 5 - 150 kHz frequency, 0.05 - 2.5V VPP, 0 - 2.5V offset
    • 1-channel periodic noise:
      • Periodic noise: 45 - 140 kHz, 0.05 - 2.5V VPP
    • 1-channel white noise:
      • White noise: ~ 1 MHz bandwidth, 0.05 - 2V VPP
    • One 4-channel electronic potentiometer used for signal or noise attenuation
    • Op amps for signal conditioning
    • Offset circuit
  • One OLED Display 128x64
  • User Interface:
    • Five status LEDs controlled by a board controller
    • 5-way joystick
    • Probe points for scope connections
  • Programming and Debugging:
    • Two UPDI headers for the two MCUs respectively