I-TLV320AIC3101IRHBR Ikhwalithi Ephakeme Izingxenye Ze-elekthronikhi ze-IC Ehlanganisiwe & Yoqobo ye-IC Ehlanganisiwe Esitokweni
Izimfanelo Zomkhiqizo
UHLOBO | DESCRIPTION |
Isigaba | Izifunda Ezihlanganisiwe (ICs) Isixhumi esibonakalayo - CODECs |
Mfr | Texas Instruments |
Uchungechunge | - |
Iphakheji | I-Tape & Reel (TR) Cut Tape (CT) I-Digi-Reel® |
SPQ | 250T&R |
Isimo somkhiqizo | Iyasebenza |
Uhlobo | Umsindo we-Stereo |
Data Interface | I-PCM Audio Interface |
Ukulungiswa (Amabhithi) | 24 b |
Inombolo yama-ADC/DACs | 2/2 |
I-Sigma Delta | Yebo |
I-S/N Ratio, ADCs / DACs (db) Uhlobo | 92/102 |
I-Dynamic Range, ADCs / DACs (db) Uhlobo | 93/97 |
I-Voltage - Supply, Analog | 2.7V ~ 3.6V |
I-Voltage - Supply, Digital | 1.65V ~ 1.95V |
Izinga Lokushisa Lokusebenza | -40°C ~ 85°C |
Uhlobo Lokukhweza | INtaba Engaphezulu |
Iphakheji / Ikesi | 32-VFQFN Iphedi Eveziwe |
Iphakheji Yedivayisi Yomhlinzeki | 32-VQFN (5x5) |
Inombolo Yomkhiqizo Eyisisekelo | I-TLV320 |
Incazelo
Ikhodekhi yomsindo iyikhodekhi (idivayisi noma uhlelo lwekhompuyutha olukwazi ukufaka ikhodi noma ukuqopha ukusakazwa kwedatha yedijithali) ehlanganisa noma ekhipha amakhodi umsindo.Kusofthiwe, i-codec yomsindo iwuhlelo lwekhompyutha olusebenzisa i-algorithm ecindezela futhi inciphise idatha yomsindo wedijithali ngokuya ngefayela elilalelwayo elinikeziwe noma ifomethi yomsindo esakazwayo.I-algorithm ihlose ukumela isignali yomsindo ethembekile enenani elincane lamabhithi ngenkathi igcina ikhwalithi.
Isimiso Sokusebenza
Ama-chips edekhoda yomsindo asebenza kulezi zimiso ezilandelayo.
1. Ukufakwa kwedijithali kwesignali yomsindo: ukufakwa kwesignali kudijithali kusho ukuguqula isignali ye-analog eqhubekayo ibe isignali yedijithali ehlukile, ngokuvamile edinga izinyathelo ezintathu zesampula, ukulinganisa, nokubhala ikhodi.
2. Isampula: Ukulandelana kwamanani esampula yesignali ngezikhathi ezithile kusetshenziselwa ukumiselela isiginali eqhubekayo yoqobo ngesikhathi.
3. ukulinganisa: kusetshenziswa inombolo elinganiselwe yokulinganisa kwe-amplitude yoshintsho lwangempela oluqhubekayo ngesikhathi, isignali ye-analogi yobude obuqhubekayo ibe inombolo elinganiselwe yamanani ahlukahlukene kanye nesikhawu sesikhathi esithile.
4. umbhalo wekhodi: ngokuya ngemithetho ethile, amanani ahlukanisiwe abalwe quantized avezwa ngamadijithi kanambambili.Inqubo yokwenza amadijithi engenhla yaziwa nangokuthi I-Pulse Code Modulation (Pulse Code Modulation), ngokuvamile etholwa iziguquli ze-A/D.
5. amasampula omsindo: ukusampula ukuthatha amasampula amelela amanani ambalwa esignali ye-analogi eshintshashintshayo ngesikhathi, ukumela lesi signali ye-analogi eshintshashintshayo.Isignali yomsindo we-analogi eqhubekayo ngesikhathi kanye nobukhulu bethebula lomsebenzi we-x (t), inqubo yesampula iwumsebenzi ka-x (t) kwinqubo ehlukanisa isikhathi.Ukusampula okujwayelekile kwenziwa ngezikhathi ezifanayo.Vumela lesi sikhathi sibe ngu-T, bese isignali eyisampula ithi x(nT), n ibe inombolo engokwemvelo.
Umkhiqizo
I-TLV320AIC3101 iyikhodekhi yomsindo we-stereo enamandla aphansi enesikhulisi se-headphone se-stereo, kanye nokokufaka okuningi nokuphumayo okungahleleleka ekucushweni okuphethwe okukodwa noma okuhlukile ngokuphelele.Ukulawulwa kwamandla okusekelwe kurejista okubanzi kufakiwe, okuvumela ukudlala kwe-stereo 48-kHz DAC kube phansi njengo-14 mW kusuka ku-analog engu-3.3-V, okuyenza ifanelekele izinhlelo zokusebenza eziphathwayo zomsindo nefoni.
Indlela yokurekhoda ye-TLV320AIC3101 iqukethe ukuchema okuhlanganisiwe kwemakrofoni, i-preamplifier yemakrofoni yesitiriyo elawulwa ngedijithali, kanye nokulawula ukuzuza okuzenzakalelayo (AGC), okunekhono lokuhlanganisa/i-mux phakathi kokokufaka kwe-analog okuningi.Izihlungi ezihlelekayo ziyatholakala ngesikhathi sokurekhoda ezingasusa umsindo ozwakalayo ongenzeka ngesikhathi sokusondeza okubonakalayo kumakhamera edijithali.Indlela yokudlala ihlanganisa amandla okuhlanganisa/e-mux asuka ku-stereo DAC nokokufaka okukhethiwe, ngezilawuli zevolumu ezihlelekayo, kuya emikhiqizweni ehlukahlukene.
I-TLV320AIC3101 iqukethe izishayeli ezine ezikhipha amandla aphezulu kanye nezishayeli ezimbili ezihlukene ngokuphelele.Abashayeli abakhipha amandla aphezulu bayakwazi ukushayela ukucushwa komthwalo okuhlukahlukene, okuhlanganisa iziteshi ezifika kwezine zama-headphone angu-16-Ω anesiphetho esisodwa zisebenzisa ama-ac-coupling capacitor, noma ama-headphones e-stereo 16-Ω ekucushweni kokuphuma kwe-capless.Ngaphezu kwalokho, amapheya wabashayeli angasetshenziswa ukushayela izipikha ezingu-8-Ω ekucushweni kwe-BTL ku-500 mW isiteshi ngasinye.
I-DAC yomsindo we-stereo isekela izilinganiso zamasampula ukusuka ku-8 kHz ukuya ku-96 kHz futhi ihlanganisa ukuhlunga kwedijithali okuhlelekayo kumzila we-DAC we-3D, i-bass, i-treble, imiphumela ye-midrange, ukulinganisa kwesipikha, nokungagcizelelwa kuka-32-kHz, 44.1-kHz, kanye no-48 -kHz amanani esampula.I-ADC yomsindo we-stereo isekela izilinganiso zamasampula ukusuka ku-8 kHz ukuya ku-96 kHz futhi yandulelwa izikhulisamazwi ezihlelekayo zenzuzo noma i-AGC engahlinzeka ngenzuzo efinyelela ku-59.5-dB ye-analog yokokufaka kwemakrofoni yezinga eliphansi.I-TLV320AIC3101 inikeza ububanzi obuphezulu kakhulu bokuhleleka kukho kokubili ukuhlasela (8–1,408 ms) kanye nokubola (imizuzwana engu-0.05–22.4).Lobu bubanzi be-AGC obunwetshiwe buvumela i-AGC ukuthi ishunwe izinhlobo eziningi zezinhlelo zokusebenza.
Ezinhlelweni zokulondoloza ibhethri lapho kungadingeki khona ukucubungula isignali ye-analogi noma yedijithali, ucingo lungafakwa kumodi ekhethekile yokudlula yesiginali ye-analogi.Le modi inciphisa kakhulu ukusetshenziswa kwamandla, njengoba iningi ledivayisi yehliswa phakathi nalo msebenzi wokudlula.
I-serial control ibhasi isekela iphrothokholi ye-I2C, kuyilapho ibhasi ledatha yomsindo we-serial lihleleka ku-I2S, amamodi akwesokunxele/kwesokudla, i-DSP, noma i-TDM.I-PLL ehleleka kakhulu ifakiwe ukuze ikhiqize iwashi eliguquguqukayo kanye nokusekelwa kwawo wonke amanani omsindo ajwayelekile kusuka kuhlu olubanzi lwama-MCLK atholakalayo, ahluka ukusuka ku-512 kHz kuye ku-50 MHz, okunakwa okukhethekile kumacala adume kakhulu we-12-MHz, 13- MHz, 16-MHz, 19.2-MHz, kanye namawashi esistimu angu-19.68-MHz.
I-TLV320AIC3101 isebenza kusukela ekuhlinzekweni kwe-analog okungu-2.7 V–3.6 V, okuwumgogodla wedijithali okungu-1.525 V–1.95 V, kanye nokunikezwa kwedijithali kwe-I/O okungu-1.1 V–3.6 V. Idivayisi itholakala ngo-5-mm × 5 -mm 32-pin QFN iphakheji.