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nRF24Z1

nRF24Z1

Low power 2.4GHz RF Stereo Audio Streamer
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Overview

Description

The Nordic nRF24Z1 is a highly integrated 2.4GHz RF Stereo Audio Streamer. It features a 4Mbps on-air data-rate that supports the streaming of un-compressed CD quality audio in full 16-bit 48kHz stereo.

The embedded protocol stack is custom designed for wireless audio streaming and features Quality of Service for up to 1.536Mbps LPCM audio, adaptive frequency hopping, and bi-directional control data link. The nRF24Z1 also supports 32, 44.1 and 48kHz sampling rates, and programmable latency, plus I2S and S/PDIF for seamless interfacing to low cost audio ADC/DACs.

The nRF24Z1 is available in a compact 36-pin 6 x 6mm QFN package.

 

The nRF24Z1 is not recommended for new designs as of 2nd July 2014. New nRF24Z1 projects registered with Nordic Technical Support after Sept 1st 2014 will not be supported.



Features

  • Low cost, low power 2.4GHz RF solution for wireless streaming of uncompressed CD-quality audio
  • Supports full uncompressed 16-bit 48kHz stereo audio
  • Embedded custom protocol stack for audio streaming based on adaptive frequency hopping for optimal co-existence performance
  • Bi-directional auxiliary data link for audio controls such as volume up/down and play/stop
  • Direct interface to low cost audio ADC/DACs with support for I2S and S/PDIF

Applications

  • Wireless speakers
  • Wireless headphones

 


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Specification

 

Highly integrated, low power 2.4GHz RF stereo audio streamer

Low power consumption

  • 2μA power down mode
  • 18mA 48kSPS audio transmit at 0dBm
  • 24mA 48kSPS audio receive

 

2.4GHz Radio

  • 2.4GHz ISM band operation
  • 4Mbps on-air data-rate
  • 0, -5, -10, and -20dBm programmable TX output power
  • -80dBm RX sensitivity
  • Compatible with 16MHz ±30ppm crystal
  • Support for an external PA

 

Audio streaming protocol stack

  • Adaptive Frequency Hopping Protocol
  • Supports (up to) full uncompressed stereo 16-bit 48KHz CD quality audio
  • Quality of Service support for up to 1.536 Mbps LPCM audio
  • Programmable sample rates of 32, 44.1 and 48KHz
  • Programmable latency
  • Bi-directional auxiliary data link for audio control features

 

ADC/DAC Interface

  • I2S and S/PDIF

 

Power supply

  • Internal linear voltage regulator
  • 2.0 to 3.6V supply range

 

Temperature range of -20 to +80 ºC

Package options

  • 36-pin 6 x 6mm QFN
Development tools and Software

 

nRF24Z1 is supported by the following development tools and software

Product Brief description
nRF24Z1 Evaluation Kit Evaluation Kit for nRF24Z1
Download

Product Specification

Code Name Version
nRF24Z1-LM nRF24Z1 Limitations in functionality
nRF24Z1-PS nRF24Z1 Product Specification 1.0

Software

Code Name Version
nRF24Z1-FW nRF24Z1 Firmware 2.0

Reference Layout

Code Name Version
nRF24Z1-DF nRF24Z1 Reference Layout 1.0

Application Notes

Code Name Version
nAN24-09 nRF24Z1 RF Layout 1.0
nAN24-10 nRF24Z1 controlled by external MCU [Firmware included] 1.0
nAN24-11 nRF24Z1 Coexistence stress test 1.0
nAN400-08 QFN Soldering Reflow Guidelines 1.2

White Papers

Code Name Version
nWP-001 Benefits of Total Integration of Large RF Circuits
nWP-004 FCC/ETSI confirmity test guidelines for nRF24Z1
nWP-005 Introduction to wireless networks
nWP-006 nRF Performance Test Guidelines 1.0
nWP-007 nRF24Z1 S/PDIF Connections
nWP-008 Quarterwave printed monopole antenna for 2.4GHz
nWP-010 Regulatory and Compliance Standards for RF Devices
nWP-011 Sharing crystal with a microcontroller (MCU) 1.1
nWP-013 Tuning the nRF24xx matching network
nWP-015 Crystal Oscillator Design Considerations
nWP-017 Antenna tuning 1.0

Product Brief

Code Name Version
nRF24Z1-PB nRF24Z1 Product Brief

Qualification Reports

Code Name Version
nRF24Z1-HSR nRF24Z1 Hazardous Substance Report, ASE (Au bond wire) 2014_05
nRF24Z1-MCR nRF24Z1 Material Composition Report