Usati wanzwisisika Pam4 tekinoroji, chii chinonzi modulation tekinoroji? Techolation tekinoroji ndiyo nzira yekushandura masaini ezvinyorwa (zvikwangwani zvemagetsi zvemagetsi) kuita masaini ekutapurirana. Kuti uve nechokwadi chekukurukurirana nekukurukurirana uye kukunda matambudziko mukureba kwekutapurirana, zvakakodzera kuendesa chiratidzo chechiratidzo kune yakakwirira-frequency chiteshi kuburikidza nekufambisa kwekutapurirana.
Pam4 ndeyechina yekuraira pulse amplitude modulation (PAM) modulation maitiro.
Pam Signal inzvimbo yakakurumbira chiratidzo tekinoroji mushure meNRZ (isiri kudzokera ku zero).
Iyo NRZ chiratidzo inoshandisa masaini maviri emasaini, yakakwirira uye yakaderera, kumiririra iyo 1 uye 0 yeiyo digital logic chiratidzo, uye inogona kuendesa 1 zvishoma ruzivo rwekuziva pane wachi kutenderera.
Pam4 Signal Inoshandisa 4 Signal Signal Signal Kuendesa, uye yega yeClock kutenderera kunogona kuendesa maviri mabheti ehuwandu ruzivo, kureva 00, 01, uye 11.
Naizvozvo, pasi peiyo yakafanana baud comment, iyo mwero wePam4 Signal ndiyo kaviri iyo yeNRZ chiratidzo, iyo inopunzana nekubudirira kwekushandisa uye zvinobudirira zvinodzora mitengo.
Pam4 tekinoroji yakave ichishandiswa zvakanyanya mumunda weiyo yepamusoro-yekumhanyisa chiratidzo. Parizvino, pane 400g Optical transcever module
Maitiro ekuita 400G DML Optical Transcer module yakavakirwa pamatanho ekutevera, pam4 yakanyorwa chip. Iyo yakakwira masaini yemagetsi inoshandurwa kuita mazana mashanu ezvikwangwani zvepamusoro-simpts Paunenge uchigamuchira yunivhesiti, iyo Channel 400G High-Speed Optical Signal chiratidzo Mushure mekupora Clock, kukwidziridzwa, kuenzana, uye PAM4 DEMPLULURALE PIP, chiratidzo chemagetsi chinoshandurwa kuva zvitanhatu zve25g nrz nrz yemagetsi chiratidzo.
Nyorera Pam4 modulation tekinoroji kusvika 400GB / S Optical Modules. Iyo 400GB / S Optical Module yakavakirwa pane Pam4 Modulation inogona kuderedza huwandu hwenhamba dzekutapurirana nekupedzisira kugashira nekuda kwekushandiswa kwehunyanzvi-hwekurongedza manhamba ekunyora achienzaniswa neNRZ. Pam4 Modulation inoderedza huwandu hwezvinhu zvezvinyorwa zvemukati mune zvemukati module, izvo zvinogona kuunza zvakanakira semari yepazasi semari yepasi, yakaderedzwa masimba masimba, uye zvidiki zvekuputika.
Iko kune kudiwa kwe50gbit / s Optical modules mu 5g kutapurirana uye nekudzokera kumashure midziyo yeApse amplitude modulation fomati inogamuchirwa yakaderera-mutengo
Paunenge uchitsanangura Pam-4 masaini, zvakakosha kuti utarise kune mutsauko uripo pakati pebhaudhi rate uye bit rate. Zvemasaini yechinyakare yeNRZ Semuenzaniso, mu100G Ethernet, uchishandisa mana 25.7812Gbaud masaini ekutapurirana, zvishoma pachiyero chimwe nechimwe pane zvakare 25.78125gbps, uye zvikwangwani zvina zvinowana 100GBPS chiratidzo chekutapurirana; YePam-4 masaini, sezvo chimwe chiratidzo chinotumira 2 mabheti e data, zvishoma iyo inogona kuendeswa kaviri pane kaviri iyo baud chiyero. Semuenzaniso, kushandisa manhamba mana e25.56gbaud masaini ekutapurirwa mu200g Ethernet, iyo rate pane imwe neimwe nzira ndeye 53.125Gbps, uye mana masaini anogona kuzadzisa 200GBPS Signal Transcing. For 400g Ethernet, inogona kuwanikwa ne8 zviteshi zve26,5625gbaud signals.
Kutumira Nguva: Jan-02-2025