Nordic yatulutsa posachedwa chida chatsopano cha Bluetooth audio portfolio, Nordic nRF5340 Audio Development Kit. DK yomvera iyi imaphatikizapo zonse zofunika kuti omanga agwiritse ntchito mwayi wamawu apamwamba kwambiri, kugwiritsa ntchito mphamvu zochepa komanso kukwezedwa kwa stereo opanda zingwe za Bluetooth LE Audio.
Nordic yalengeza nRF5340 Audio Development Kit, nsanja yopangira kupanga zinthu za Bluetooth® LE Audio. NRF5340 ndiye SoC yoyamba yopanda zingwe padziko lapansi yokhala ndi mapurosesa awiri a Arm® Cortex®-M33, abwino kwa LE Audio ndi mapulogalamu ena ovuta a Internet of Things (IoT).
Gulu la Bluetooth Special Interest Group (SIG) limafotokoza LE Audio ngati "tsogolo la mawu opanda zingwe". Ukadaulowu umachokera ku codec yolumikizirana yocheperako kwambiri LC3, yowongoleredwa ku codec yocheperako (SBC) yogwiritsidwa ntchito ndi Classic Audio.
LC3 imawonetsetsa kuti LE Audio imakhala ndi mawu apamwamba komanso moyo wautali wa batri kuposa Classic Audio nthawi zonse. Kuyesa kumvetsera kwakukulu kwawonetsa kuti LC3 imapereka mawu abwinoko kuposa SBC pamlingo womwewo pamiyeso yonse yachitsanzo, ndipo imapereka mawu ofanana kapena abwinoko pa theka la ma data opanda zingwe.
Kutsika kwa data ndi chinthu chofunikira kwambiri pakuchepetsa kugwiritsa ntchito mphamvu pazinthu za LE Audio. LE Audio imabweretsanso True Wireless Stereo (TWS) ndi zina zatsopano pamawu opanda zingwe, kuphatikiza Audio Sharing.
Audio DK's core nRF5340 SoC imaphatikiza purosesa yogwira ntchito kwambiri yokhala ndi purosesa yokhazikika yamagetsi otsika kwambiri kuti igwiritse ntchito bwino mphamvu zamagetsi komanso magwiridwe antchito apamwamba pamapangidwe apawiri-core. Purosesa ya 128 MHz Arm Cortex-M33 ili ndi 1 MB ya kung'anima ndi 512 KB ya RAM, zomwe zimapangitsa kuti zikhale zoyenera kugwira ntchito ndi ma codec omvera monga LC3.
Purosesa ya netiweki ya 64 MHz Arm Cortex-M33 ili ndi 256 KB ya flash memory ndi 64 KB ya RAM, ndipo imakhala ndi mphamvu zoyendetsera pulogalamu ya Nordic Bluetooth LE Audio RF protocol. NRF Connect SDK ndi nRF5340 SoC chitukuko nsanja yomwe imapereka chithandizo cha nRF5340 Audio DK board ndikuthandizira LE Audio, Bluetooth Low Energy, Thread ndi ntchito zina.
Kuphatikiza pa nRF5340 SoC, Audio DK imakhala ndi Nordic's nPM1100 power management IC (PMIC) ndi Cirrus Logic's CS47L63 audio digital signal processor (DSP).
NPM1100 imakhala ndi chowongolera chowongolera bwino kwambiri komanso cholumikizira batire chophatikizika chokhala ndi 400mA cholipiritsa chapano mu chinthu chaching'ono kwambiri, ndikupangitsa kuti ikhale PMIC yabwino pakugwiritsa ntchito malo opanda malo monga ma TWS makutu. CS47L63 imakhala ndi DAC yochita bwino kwambiri komanso woyendetsa wosiyanasiyana wokometsedwa kuti azitha kulumikizana mwachindunji ndi katundu wapamutu wakunja wamakutu am'makutu okhala ndi mono komanso zotulutsa zolankhula molunjika zokha.
