2.4GHz单片式无线数字耳机设计.pdf

2.4GHz单片式无线数字耳机设计.pdf
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Wireless hands-free using nRF24E1

INTRODUCTION

This document presents a wireless hands-free concept based on Nordic VLSI device
nRF24E1, 2.4 GHz transceiver with embedded 8051 u-controller and A/D converter.
Due to the unique features of the nRF24E1 this application can be realized with a
minimum of external components.

Key features:
1. From single chip RF transceiver solution to ‘Single chip wireless hands-free
solution’
2. Voice quality audio (as defined by land line phone systems)
3. No need for codecs to compress audio information.
4. Secure communication, on chip-protocol generation and unique addressing of
each system.
5. Emulated full duplex RF link
6. 2.4 GHz, world wide license free RF band, operation
7. Multiple channels available (up to 125 depending o