TLV320AIC3101IRHBR Wapamwamba Watsopano & Woyambirira wa IC Yophatikiza Zamagetsi Zamagetsi Zomwe Muli nazo
Makhalidwe a Zamalonda
| TYPE | DESCRIPTION |
| Gulu | Magawo Ophatikizana (ICs) Chiyankhulo - CODECs |
| Mfr | Texas Instruments |
| Mndandanda | - |
| Phukusi | Tape & Reel (TR) Dulani Tepi (CT) Digi-Reel® |
| SPQ | 250T&R |
| Mkhalidwe wa Zamalonda | Yogwira |
| Mtundu | Nyimbo za Stereo |
| Data Interface | PCM Audio Interface |
| Resolution (Bits) | 24 b |
| Chiwerengero cha ma ADC / ma DAC | 2 / 2 |
| Sigma Delta | Inde |
| S/N Ratio, ADCs / DACs (db) Mtundu | 92 / 102 |
| Dynamic Range, ADCs / DACs (db) Mtundu | 93/97 |
| Voltage - Supply, Analogi | 2.7V ~ 3.6V |
| Voltage - Supply, Digital | 1.65V ~ 1.95V |
| Kutentha kwa Ntchito | -40°C ~ 85°C |
| Mtundu Wokwera | Surface Mount |
| Phukusi / Mlandu | 32-VFQFN Yowonekera Pad |
| Phukusi la chipangizo cha Supplier | 32-VQFN (5x5) |
| Nambala Yoyambira Yogulitsa | Chithunzi cha TLV320 |
Tanthauzo
Kodeki yomvera ndi codec (chipangizo kapena pulogalamu yapakompyuta yomwe imatha kusindikiza kapena kumasulira mawu a digito) yomwe imasunga kapena kutsitsa mawu.Mu mapulogalamu, audio codec ndi pulogalamu ya pakompyuta yomwe imagwiritsa ntchito algorithm yomwe imakanikiza ndikutsitsa deta yamtundu wa digito molingana ndi fayilo yomvera yomwe wapatsidwa kapena mtundu wamawu omvera.Algorithm ikufuna kuyimira chikwangwani cha audio chapamwamba chokhala ndi ma bits ochepa ndikusungabe khalidwe.
Mfundo Yogwirira Ntchito
Tchipisi ta audio decoder amagwira ntchito pa mfundo zotsatirazi.
1. Kuyika kwa siginecha yamtundu wa digito: kuyika kwa siginecha kumatanthauza kutembenuza siginecha ya analogi yosalekeza kukhala siginecha ya digito, yomwe nthawi zambiri imafunika kusanja masitepe atatu, kuchuluka, ndi kulembera.
2. Zitsanzo: Kutsatizana kwa zizindikiro zachitsanzo pazigawo zina zimagwiritsidwa ntchito m'malo mwa chizindikiro choyambirira chopitilira nthawi.
3. quantization: pogwiritsira ntchito chiwerengero chochepa cha matalikidwe okhudzana ndi kusintha kosalekeza koyambirira kwa nthawi, chizindikiro cha analogi chopitirira matalikidwe mu chiwerengero chochepa chamtengo wapatali ndi nthawi inayake.
4. encoding: malinga ndi malamulo ena, ma quantized discrete values amawonetsedwa mu manambala a binary.Njira yomwe ili pamwambapa imadziwikanso kuti Pulse Code Modulation (Pulse Code Modulation), yomwe nthawi zambiri imatheka ndi otembenuza A/D.
5. Zitsanzo zamawu: sampuli ndikutenga zitsanzo zingapo zoyimira kuchokera ku siginecha ya analogi yomwe imasiyana mosalekeza munthawi yake, kuyimira chizindikiro cha analogi chosinthika mosalekeza.Chizindikiro chokhazikika cha analogi mu nthawi ndi matalikidwe a tebulo la ntchito la x (t), ndondomeko ya sampuli ndi ntchito ya x (t) mu ndondomeko ya nthawi.General sampling ikuchitika yunifolomu nthawi intervals.Lolani nthawi iyi kukhala T, ndiye chizindikiro chojambulidwa ndi x(nT), n kukhala nambala yachilengedwe.
Zogulitsa
TLV320AIC3101 ndi codec ya stereo audio yamphamvu yotsika yokhala ndi stereo headphone amplifier, komanso zolowetsa ndi zotulutsa zingapo zomwe zimatha kusinthidwa mosiyanasiyana kapena mosiyanasiyana.Kuwongolera kwamphamvu kozikidwa pa kaundula kumaphatikizidwa, kupangitsa kusewerera kwa stereo 48-kHz DAC kukhala otsika ngati 14 mW kuchokera pa 3.3-V analogi, kupangitsa kuti ikhale yabwino kwa ma audio ndi ma telefoni otengera batire.
Njira yojambulira ya TLV320AIC3101 imakhala ndi tsankho lophatikizika la maikolofoni, preamplifier ya stereo yoyendetsedwa ndi digito, ndi automatic gain control (AGC), yokhala ndi kuthekera kwa mix/mux pakati pazolowetsa zingapo za analogi.Zosefera zomwe zitha kusinthidwa zimapezeka panthawi yojambulidwa zomwe zimatha kuchotsa phokoso lomveka lomwe limatha kuchitika mukamayang'ana makamera a digito.Njira yosewerera imaphatikizanso kuthekera kosakanikirana / mux kuchokera ku stereo DAC ndi zolowetsa zosankhidwa, kudzera pakuwongolera voliyumu, mpaka pazotsatira zosiyanasiyana.
TLV320AIC3101 ili ndi madalaivala anayi amphamvu kwambiri komanso madalaivala awiri osiyanitsa kwathunthu.Madalaivala amphamvu kwambiri amatha kuyendetsa masinthidwe osiyanasiyana, kuphatikiza mpaka ma tchanelo anayi a mahedifoni amtundu umodzi wa 16-Ω pogwiritsa ntchito ma ac-coupling capacitor, kapena mahedifoni a stereo 16-Ω mu kasinthidwe kopanda kanthu.Kuphatikiza apo, madalaivala atha kugwiritsidwa ntchito kuyendetsa ma speaker 8-Ω mu kasinthidwe ka BTL pa 500 mW panjira.
Nyimbo ya stereo ya DAC imathandizira zitsanzo kuchokera pa 8 kHz kufika pa 96 kHz ndipo imaphatikizapo kusefa kwa digito mu njira ya DAC ya 3D, bass, treble, midrange effect, kufananitsa kwa oyankhula, ndi kutsindika kwa 32-kHz, 44.1-kHz, ndi 48 -kHz mitengo yachitsanzo.ADC ya stereo audio imathandizira zitsanzo kuchokera ku 8 kHz mpaka 96 kHz ndipo imatsogozedwa ndi zokulitsa zodziwikiratu kapena AGC zomwe zimatha kupindula mpaka 59.5-dB ma analogi olowetsa maikolofoni otsika.TLV320AIC3101 imapereka kusinthika kwapamwamba kwambiri pazowukira zonse ziwiri (8-1,408 ms) komanso pakuwola (masekondi 0.05-22.4).Mtundu wokulirapo wa AGC uwu umalola kuti AGC iwunikire mitundu yambiri ya mapulogalamu.
Pamapulogalamu opulumutsa batire pomwe palibe kusintha kwa siginecha ya analogi kapena digito, chipangizocho chitha kuyikidwa munjira yapadera yodutsa chizindikiro cha analogi.Njirayi imachepetsa kwambiri kugwiritsa ntchito mphamvu, chifukwa chipangizocho chimayendetsedwa pansi panthawiyi.
Basi ya serial control imathandizira protocol ya I2C, pomwe mabasi omvera amawu amatha kusinthidwa ndi I2S, kumanzere / kumanja, DSP, kapena mitundu ya TDM.PLL yosinthika kwambiri imaphatikizidwa kuti ipangitse mawotchi osinthika komanso kuthandizira kwamitundu yonse yomvera kuchokera pama MCLK osiyanasiyana omwe alipo, kuyambira 512 kHz mpaka 50 MHz, ndi chidwi chapadera pamilandu yotchuka kwambiri ya 12-MHz, 13- MHz, 16-MHz, 19.2-MHz, ndi 19.68-MHz dongosolo mawotchi.
TLV320AIC3101 imagwira ntchito kuchokera ku ma analogi a 2.7 V-3.6 V, makina a digito a 1.525 V-1.95 V, ndi ma I/O a digito a 1.1 V-3.6 V. Chipangizochi chikupezeka mu 5-mm × 5 -mm 32-pini QFN phukusi.
