I-Tempotec Sonata HD Pro USB dongle (amplifier + DAC)
Ukunyamalala kwesixhumi esivamile se-TRS 3.5 (esaziwa kangcono ngokuthi i-stereo mini-jack) kuma-smartphones kuphoqa abasebenzisi ukuthi basebenzise i-adaptha ephelele. Imfuneko eyinhloko yalo ukuthi ihlale isikhathi eside futhi ingabi inciphe. Kuhlale kuthakazelisa ukuthi yini engaphakathi kulawa ma-adaptha. Phela, ezinye zazo ziyi-digital-to-analog converters kanye nama-amplifiers kudivayisi eyodwa.
Lokhu kuphakamisa ukuthi noma iyiphi i-smartphone yesimanje ingashintshwa ibe isidlali sedijithali esiphelele sekhwalithi ephezulu. Azikho izindleko ezikhethekile. Ngeke ibe ngaphansi kumadivayisi akhethekile. Ngaphezu kwalokho, ukukhethwa okubanzi kwemikhiqizo enjalo kuzokusiza ukuthi uthole inketho efanele yamahedfoni akho kanye nezidingo zomsindo.
I-TempoTec kade yaziwa emakethe yemishini yomsindo. Ikhathalogi iqukethe kokubili abadlali bedijithali nama-USB DAC, kanye namakhadi omsindo e-PCI. Emakethe ye-dongle yomsindo weselula, uhlobo luqhudelana nochungechunge lwayo lwe-Sonata, imodeli ye-HD Pro esizokhuluma ngayo kulokhu kubuyekezwa.
I-Tempotec Sonata HD Pro Imininingwane
| I-DAC IC | I-Cirrus Logic CS43131 |
| Isikhulisi samahedfoni | Kuhlanganiswe ne-CS43131 |
| Isilawuli se-USB | I-Savitech SA9312 |
| Uhlobo lokungena | Micro-USB |
| Ukusekelwa kwe-PCM | I-32bit 384kHz |
| Ukusekelwa kwe-DSD | I-DSD256 (Direct) |
| Ukusekelwa kwe-ASIO | Yebo |
I-Tempotec Sonata HD Pro - Buyekeza
I-TempoTec Sonata HD Pro inesisindo esingamagremu angu-9 kuphela. Inokubonakala okulula kanye nobukhulu obungu-47x17x8 mm, okungajwayelekile kuma-dongles. Konke lokhu kunxeshezelwa yicala lensimbi elithembekile. Noma izinkinobho zokulawula zingabonakali ezikuvumela ukuthi ulungise ivolumu ngaphandle kokukhipha i-smartphone yakho ephaketheni lakho. Kufanele kuqashelwe ukuthi lokhu umthamo wedivayisi, hhayi smartphone yakho. Futhi, kubonakala sengathi, kakade isixhumi esingavamile se-Micro-USB. Lokhu kuzongeza amandla okuxhuma idivayisi kudivayisi oyifunayo ngama-adaptha, okuhlanganisa aphelele.
Isethi ephelele ihlanganisa ibhokisi lethini eliqinile, okuthi, ngaphezu kwe-dongle, liqukethe:
- I-adaptha yohlobo C kuya ku-Mirco-USB.
- I-adaptha yohlobo C kuya ku-USB-A.
- Isitika se-Hi-Res Audio, okuthi, njengokungathi, siqinisekisa ukuthi idivayisi ikuvumela ukuthi ulalele umculo ngokuchazwa okuphezulu.
Intengo ye-Tempotec Sonata HD Pro icishe ibe ngama- $50. Okuhle kakhulu ekusebenzeni kokuzijabulisa okunjalo.
Inhliziyo yedivayisi iyi-chip ye-Cirrus Logic CS43131. Ihlanganisa i-DAC yomsindo yesizukulwane esisha ene-amplifier yekhwalithi ephezulu ukuze ilethe ikhwalithi yomsindo ephakeme kakhulu esebenzisa amandla aphansi.
Amapharamitha we-Chip Tempotec Sonata HD Pro
| Iziteshi | 2 |
| Isixazululo, kancane | 32 |
| Ibanga elinamandla, dB | 130 |
| Ingqikithi Yokuhlanekezeka Kwe-Harmonic + Noise (THD + N), dB | -115 |
| Imvamisa yesampula, kHz | 384 |
| I-analog power supply, i-V | 1.8 |
| Ukunikezwa kwamandla edijithali, V | 1.8 |
| Ukusetshenziswa kwamandla kumodi yokusebenza, mW | 6,25-40,2 |
| Izinga lokuphumayo, Vrms | 2 (kufika ku-600 Ω) |
| Amandla okukhiphayo isiteshi ngasinye esilayishiwe, mW | - |
| 32 ohm | 30 |
| 600 ohm | 5 |
Kunzima ukuthola noma yiluphi ulwazi kusilawuli se-USB se-SA9312, i-Savitech ayabelani ngemininingwane yedatha. I-PLL (i-Phase Locked Loop) ye-CS43131 ngokwayo cishe inesibopho sokuwashwa kwesignali. Idivayisi isekela i-ASIO (Low Latency Data Transfer Protocol). Kodwa kuphela ngemva kokufaka umshayeli, engalandwa kuwebhusayithi esemthethweni Tempotec (kuphela Windows). Kuyaphawuleka ukuthi Windows 10 iqala i-dongle ngaphandle kwebhokisi, okungukuthi, nje Xhuma futhi Dlala.
Umkhiqizi ubonisa izilinganiso zokuphuma komsindo ezilandelayo:
- Isilinganiso sesignali kumsindo (SNR) - 128 dB.
- Ibanga elinamandla - 128 dB.
Ungahlola lokhu ngokuya kusisetshenziswa esaziwayo se-ASR (i-audiosciencereview), lapho le divayisi ibishayelwa khona ngokuhlaziya umsindo. Ngokusekelwe emiphumeleni yokulinganisa yesayithi ye-ASR:
| Amandla okukhipha, Vrms | 2 |
| Ingqikithi Yokuhlanekezeka Kwe-Harmonic + Noise (THD + N),% | 0.00035 |
| Isilinganiso somsindo wesignali (SINAD), dB | ~ 109 |
| Ibanga elinamandla, dB | 124 |
| Ukuhlolwa kwe-Multitone, kancane | 18-22 |
| Ukuhlolwa kweJitter, dB | -130 (LF) / -140 |
Njengoba kuphawuliwe ku-ASR, i-multitone (ukuhlolwa kwethoni eminingi) kukhombisa ubuthakathaka obuncane kumafrikhwensi aphansi.
Amandla okukhipha ngomthwalo wama-300 ohms - 14 mW. Ukushintshela ku-32 ohm umthwalo obangele ukusika. Lokhu kungenye yezindlela zokuhlanekezela okwenzeka lapho i-amplifier igcwele futhi lapho i-voltage ephumayo ye-amplifier idlula umkhawulo we-voltage yokuhlinzeka futhi, ngenxa yalokho, amandla aphansi - 66 mW.
Njengoba ubona, amahedfoni aphezulu we-impedance anzima kudivayisi. Uma sicabangela ukuthi sicabangela izinto eziphathwayo zayo, lokhu kungase kunganakwa kancane. Kodwa-ke, kuzohlinzekwa indawo ekhululekile yevolumu yama-headphone "aqinile".
I-Tempotec Sonata HD Pro: izici
Kuyafaneleka ukubalula ngokwehlukana ukuthi okukhiphayo kwe-headphone mini-jack stereo kusetshenziselwa injongo ehlosiwe kuphela. Okusho ukuthi, i-dongle ayikwazi ukuba nokulawula kwangaphandle. Umzuzu olandelayo nawo uhlotshaniswa nayo: lapho ipulaki ixhunywe kusokhethi, idivayisi iqala futhi iqale ukusebenza. Futhi ngemva kokuyikhipha - ngokuphambene nalokho, igcina ibhethri ye-smartphone yakho.
I-adaptha yohlobo C eyakhethwa ngaphambilini eya ku-USB-A ingaxhuma i-Tempotec Sonata HD Pro kukhompuyutha yomuntu siqu noma ikhompuyutha ephathekayo. Futhi uyisebenzise njenge-DAC egcwele ngokugcwele, ngoba izici zedivayisi zikuvumela ukuba wenze lokhu.
I-Analogs Tempotec Sonata HD Pro
Phakathi kwama-analogue akulesi sigaba samanani (amadola angama-50 US), amadivayisi alandelayo angahlukaniswa:
- iBasso DC02... Lona omunye wamavulandlela we-Hi-F ephathekayo ethengekayo. Nokho, imodeli efanayo ye-DC02 ayisizi ekuqhathaniseni ngokuqondile ne-Sonata HD Pro. Amandla okukhiphayo aphansi (1Vrms), isilinganiso sesignali-kuya-noise (92dB vs 109dB) kanye nobubanzi obuguquguqukayo buka-91dB kukhombisa lokhu. Ukuhlolwa kwe-jitter nakho kubonisa umsindo omkhulu, nakuba ungaphandle kwendlebe. I-chip eyaziwa kakhulu evela ku-Asahi Kasei AK4490EQ ayizange isize nayo. Amamodeli avela ku-iBasso angaqhudelana ne-Sonata HD Pro azobiza kakhulu.
- xDuoo isixhumanisi... Le analogi inezinkinga ezifanayo ne-iBasso DC eshiwo ngenhla
- I-Periodic Audio Rhodium... Njengenketho esigabeni esifanayo, kodwa ngemisebenzi embalwa encishisiwe. Ikhiqiza kuphela i-7mW ku-32 Ohms. Akunangqondo ukuhlala ezicini ezinemininingwane. Akukho ukwesekwa kwe-DSD. Okungaphakathi kuseyimpicabadala. Futhi lokhu kudala izinkinga kubathengi okudingeka baqonde ukuthi bayikhokhela ngani imali yabo.
- Musiland MU1... Ngenani lama- $ 35, ikhombisa amandla ahloniphekile amahle kuma-headphone angenawo amandla - 29mW (ngokwe-ASR). Umkhiqizi ubonisa ukuthi ububanzi obuguquguqukayo bungu-114dB, futhi ingqikithi yokuhlanekezela kwe-harmonic + umsindo (THD + N) ingu -90dB. Lesi sakamuva siqinisekiswa yisibalo se-ASR esingu-93dB. I-Dongle isekelwe kuphrosesa yedijithali ye-USB i-SuperDSP230 kanye ne-Cirrus Logic CS42L codec
Ngaphezu kwalokho, i-brand ethandwayo ye-Hidizs ine-arsenal yayo imodeli ye-S8, efana ne-hardware nezici, ehlukile, mhlawumbe, emklamo ophumelele kakhulu. Kodwa kuphuma ku-$30 ngaphezulu. Futhi lokhu kunamandla afanayo ne-Tempotec Sonata HD Pro.
Ekuphethweni
Kuphephile ukusho ukuthi ukusebenza komsindo kwe-Tempotec Sonata HD Pro USB dongle phakathi kwezimbangi esigabeni sayo samanani kungaphezu kokunconywa. Ayinayo i-headroom yamahedfoni aphezulu we-impedance. Kodwa ngokwekhwalithi yomsindo, ingase iqhudelane nama-DAC amile, noma ngabe ukubhuka.
Ungathenga i-Tempotec Sonata HD Pro USB dongle ku-AliExpress usebenzisa isibhengezo esingezansi:
