Nordic Star Products NRD24V1 User Manuals

Table of Contents

• 1 Introduction

  4
• 2 System Description

  5
• 3 Hardware description

  7
  • 3.1 nRD24V1 Radio module

    7
    • 3.1.1 Audio Codec

      7
    • 3.1.2 Micro controller

      8
    • 3.1.3 Radio circuit

      8
    • 3.1.4 Antenna matching network

      8
    • 3.1.5 Power supply

      8
    • 3.1.6 Programming

      8
    • 3.1.7 Specifications

      9
  • 3.2 Application board

    10
    • 3.2.1 Audio interface

      10
      • 3.2.1.1 Headset interface

        11
      • 3.2.1.2 PC interface

        11
    • 3.2.2 Jumpers

      12
    • 3.2.3 Antenna

      12
    • 3.2.4 Power supply

      12
    • 3.2.5 Buttons

      13
    • 3.2.6 Programming

      13
  • 3.3 USB dongle

    14
    • 3.3.1 USB Interface

      15
    • 3.3.2 Micro controller

      15
    • 3.3.3 Radio circuit

      15
    • 3.3.4 Power supply

      15
    • 3.3.5 Programming

      15
    • 3.3.6 Specifications

      16
• 4 Hardware design guidelines

  17
  • 4.1 Headset

    17
    • 4.1.1 Antenna

      17
    • 4.1.2 Interfaces

      17
      • 4.1.2.1 Buttons

        17
      • 4.1.2.2 Audio interface

        18
    • 4.1.3 Crystals

      18
    • 4.1.4 MCU

      18
    • 4.1.5 Battery

      18
  • 4.2 USB dongle

    19
    • 4.2.1 Antenna

      19
    • 4.2.2 MCU

      19
    • 4.2.3 Crystals

      19
• 5 Appendix

  20
  • 5.1 Bill Of Materials (BOM)

    20
  • 5.2 Application board schematics

    23
  • 5.3 RF module schematics

    24
  • 5.4 USB dongle schematics

    25