I-Nordic isanda kwethula umkhiqizo omusha wephothifoliyo womsindo we-Bluetooth, i-Nordic nRF5340 Audio Development Kit. Le DK yomsindo ihlanganisa yonke into edingekayo ukuze usize onjiniyela basebenzise ikhwalithi yomsindo ephezulu, ukusetshenziswa kwamandla okuphansi nezithuthukisi ezingenantambo zesitiriyo se-Bluetooth LE Audio.
I-Nordic imemezela i-nRF5340 Audio Development Kit, inkundla yokuklama yokuthuthukiswa okusheshayo kwemikhiqizo yomsindo ye-Bluetooth® LE. I-nRF5340 iyi-SoC yokuqala yomhlaba engenazintambo enamaphrosesa amabili e-Arm® Cortex®-M33, elungele i-LE Audio nezinye izinhlelo zokusebenza eziyinkimbinkimbi ze-inthanethi Yezinto (IoT).
I-Bluetooth Special Interest Group (SIG) ichaza i-LE Audio "njengekusasa lomsindo ongenantambo". Lobu buchwepheshe busekelwe kukhodekhi yokuxhumana eyinkimbinkimbi LC3, okuthuthukisiwe ku-codec ye-subband ye-low-complexity (SBC) esetshenziswa i-Classic Audio.
I-LC3 iqinisekisa ukuthi i-LE Audio inekhwalithi yomsindo ephezulu nempilo yebhethri ende kunomsindo Wakudala kuzo zonke izimo. Ukuhlolwa okubanzi kokulalela kubonise ukuthi i-LC3 inikeza ikhwalithi yomsindo engcono kune-SBC ngesilinganiso esifanayo sesampula kuwo wonke amanani esampula, futhi iletha ikhwalithi yomsindo elinganayo noma engcono engxenyeni yezinga ledatha engenantambo.
Amanani edatha aphansi ayisici esibalulekile ekunciphiseni ukusetshenziswa kwamandla emikhiqizweni ye-LE Audio. I-LE Audio futhi iletha i-True Wireless Stereo (TWS) nezinye izici ezintsha ezinhlelweni zomsindo ezingenantambo, okuhlanganisa Ukwabelana Ngomsindo..
I-Audio DK's core nRF5340 SoC ihlanganisa iphrosesa yohlelo lokusebenza olusebenza kahle kakhulu nephrosesa yenethiwekhi yamandla aphansi ehleleleka ngokugcwele ukuze kusebenze kahle amandla kanye nokusebenza okuphezulu ekwakhiweni kwe-dual-core architecture. Iphrosesa yezinhlelo zokusebenza ze-Arm Cortex-M128 engu-33 MHz iqukethe u-1 MB we-flash no-512 KB we-RAM, okuyenza ifaneleke ukuphatha izinhlelo zokusebenza ngokwezifiso namakhodekhi omsindo njenge-LC3.
Iphrosesa yenethiwekhi engu-64 MHz Arm Cortex-M33 ino-256 KB wememori ye-flash kanye no-64 KB we-RAM, futhi ilungiselelwe amandla okusebenzisa isofthiwe yephrothokholi ye-Nordic Bluetooth LE Audio RF. I-nRF Connect SDK iyinkundla yokuthuthukisa i-nRF5340 SoC enikeza ukwesekwa kwezinga lebhodi le-nRF5340 Audio DK futhi isekela i-LE Audio, i-Bluetooth Low Energy, Thread nezinye izinhlelo zokusebenza.
Ngokungeziwe ku-nRF5340 SoC, i-Audio DK ihlanganisa i-Nordic's nPM1100 power management IC (PMIC) kanye ne-Cirrus Logic's CS47L63 audio digital processor processor (DSP).
I-nPM1100 ifaka isilawuli sebhakhi esilungisekayo esisebenza kahle kakhulu kanye neshaja yebhethri ehlanganisiwe enamandla afinyelela ku-400mA ashaja ngendlela encane kakhulu, okuyenza ibe i-PMIC ekahle yezinhlelo zokusebenza ezibambezeleke isikhala njengama-earbud e-TWS. I-CS47L63 ifaka i-DAC esebenza kahle kakhulu kanye nomshayeli ophumayo ohlukile olungiselelwe ukuxhumana okuqondile nama-headphone angaphandle emikhiqizweni ye-earbud ene-mono kanye nezipikha eziqondile eziphumayo kuphela.
