Nordic Star Products manual User Guide USB dongle, NRD24V1 USB dongle top side

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User Guide

3.3USB dongle

The USB dongle establishes a wireless audio link with the radio module in a headset and is identified as an audio device in the PC operating system.

The USB dongle is mounted on a 0.8 mm, 4-layer FR4 circuit board, with components on both sides of the board.

1

2

3

4

1

MCU

3

nRF24L01

2

MCU crystal

4

RF crystal

 

Figure 11. nRD24V1 USB dongle top side

 

1

 

2

3

1

USB MCU

3 ISP connector

2

EE Prom

 

Figure 12. nRD24V1 USB dongle bottom side

Revision 1.0

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Contents Headset Reference Design nRD24V1 User Guide Life support applications disclaimer User GuideLiability disclaimer Contact detailsContents Introduction System Description USBLED Buttons Audio Codec Hardware descriptionNRD24V1 Radio module Radio circuit Power supplyMicro controller Antenna matching networkSpecifications Operating conditions Status ValueUser Guide Application board Audio interfaceHeadset interface Jumpers AntennaButtons Button mappingUser Guide USB dongle NRD24V1 USB dongle top sideUSB Interface User Guide Interfaces Hardware design guidelinesHeadset 4 MCU BatteryCrystals Headset Reference Design USB dongle 2 MCUAppendix Bill Of Materials BOMUSB dongle BOM Radio module BOM Headset Reference Design Application board schematics GuideUser RF module schematics USB dongle schematics Headset Reference Design