Nordic tsis ntev los no tau tshaj tawm cov khoom lag luam Bluetooth audio portfolio tshiab, Nordic nRF5340 Audio Development Kit. Lub suab DK no suav nrog txhua yam uas xav tau los pab cov neeg tsim khoom siv kom zoo dua lub suab zoo, tsis siv hluav taws xob thiab kev txhim kho lub tso suab wireless ntawm Bluetooth LE Audio.
Nordic tshaj tawm nRF5340 Audio Development Kit, tsim platform rau kev loj hlob sai ntawm Bluetooth® LE Audio cov khoom. nRF5340 yog lub ntiaj teb thawj wireless SoC nrog ob Arm® Cortex®-M33 processors, zoo tagnrho rau LE Audio thiab lwm yam kev siv Internet ntawm Yam (IoT).
Lub Bluetooth Special Interest Group (SIG) piav txog LE Audio li "lub neej yav tom ntej ntawm lub suab wireless". Cov thev naus laus zis no yog ua raws li kev sib txuas lus tsis yooj yim codec LC3, ib qho kev txhim kho rau qhov tsis tshua muaj teeb meem subband codec (SBC) siv los ntawm Classic Audio.
LC3 xyuas kom meej tias LE Audio muaj lub suab zoo dua thiab lub roj teeb ntev dua li Classic Audio hauv txhua qhov kev siv. Kev soj ntsuam kev mloog ntau tau pom tias LC3 muab lub suab zoo dua li SBC ntawm tib tus qauv ntawm txhua tus qauv, thiab xa cov suab sib npaug lossis zoo dua ntawm ib nrab ntawm cov ntaub ntawv wireless.
Cov ntaub ntawv qis dua yog qhov tseem ceeb hauv kev txo qis kev siv hluav taws xob hauv LE Audio cov khoom lag luam. LE Audio kuj coj True Wireless Stereo (TWS) thiab lwm yam tshiab rau cov ntawv thov suab wireless, suav nrog Audio Sharing..
Lub Suab DK's core nRF5340 SoC ua ke nrog cov ntawv thov kev ua haujlwm siab nrog lub programmable ultra-low-power network processor kom pom lub zog ua haujlwm zoo thiab kev ua haujlwm siab nyob rau hauv dual-core architecture. Lub 128 MHz Arm Cortex-M33 daim ntawv thov processor muaj 1 MB ntawm flash thiab 512 KB ntawm RAM, ua rau nws zoo tagnrho rau kev tuav cov ntawv thov kev cai thiab suab codecs xws li LC3.
Lub 64 MHz Arm Cortex-M33 network processor muaj 256 KB ntawm flash nco thiab 64 KB ntawm RAM, thiab yog lub zog-optimized los khiav Nordic Bluetooth LE Audio RF raws tu qauv software. Lub nRF Txuas SDK yog nRF5340 SoC kev txhim kho platform uas muab nRF5340 Suab DK pawg thawj coj saib xyuas thiab txhawb nqa LE Suab, Bluetooth Tsawg Zog, Xov thiab lwm yam kev siv.
Ntxiv rau nRF5340 SoC, Audio DK nta Nordic's nPM1100 fais fab tswj IC (PMIC) thiab Cirrus Logic's CS47L63 audio digital signal processor (DSP).
Lub nPM1100 nta ib qho kev ua tau zoo ntawm kev tswj hwm pob nyiaj thiab lub roj teeb sib xyaw nrog txog 400mA them tam sim no hauv daim ntawv me me, ua rau nws zoo tshaj PMIC rau qhov chaw txwv tsis pub siv xws li TWS earbuds. Lub CS47L63 nta DAC kev ua tau zoo thiab cov neeg tsav tsheb sib txawv ua kom zoo rau kev sib txuas ncaj qha rau sab nraud lub mloog pob ntseg rau cov khoom siv pob ntseg nrog mono thiab cov lus hais ncaj qha tawm xwb.
