{"id":3798,"date":"2025-11-18T00:00:00","date_gmt":"2025-11-18T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/serdes-interfaces-high-speed-data-transfer-and-signal-integrity\/"},"modified":"2026-06-22T05:00:01","modified_gmt":"2026-06-22T05:00:01","slug":"serdes-interfaces-high-speed-data-transfer-and-signal-integrity","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/serdes-interfaces-high-speed-data-transfer-and-signal-integrity","title":{"rendered":"T\u00ecm hi\u1ec3u v\u1ec1 SERDES: Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a giao di\u1ec7n Serializer\/Deserializer"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cb4a0eb5eb7f42c39e00ee5ff87aad50.webp\" alt=\"Understanding SERDES: How Serializer\/Deserializer Interfaces Work\" class=\"wp-image-3794\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cb4a0eb5eb7f42c39e00ee5ff87aad50.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cb4a0eb5eb7f42c39e00ee5ff87aad50-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cb4a0eb5eb7f42c39e00ee5ff87aad50-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cb4a0eb5eb7f42c39e00ee5ff87aad50-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cb4a0eb5eb7f42c39e00ee5ff87aad50-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng t\u1ed1c \u0111\u1ed9 cao\u2014t\u1eeb c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch Ethernet \u0111\u1ebfn c\u00e1c b\u1ed9 thu ph\u00e1t quang\u2014\u0111\u1ec1u ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t c\u00f4ng ngh\u1ec7 n\u1ed9i b\u1ed9 m\u00e0 h\u1ea7u h\u1ebft k\u1ef9 s\u01b0 s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y nh\u01b0ng hi\u1ebfm khi nh\u00ecn th\u1ea5y tr\u1ef1c ti\u1ebfp: <strong>SERDES<br><\/strong>, vi\u1ebft t\u1eaft c\u1ee7a <strong>B\u1ed9 n\u1ed1i ti\u1ebfp\/t\u00e1ch n\u1ed1i ti\u1ebfp<\/strong>. Khi t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u t\u0103ng t\u1eeb 10G l\u00ean 800G, SERDES \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t kh\u1ed1i x\u00e2y d\u1ef1ng n\u1ec1n t\u1ea3ng cho ph\u00e9p truy\u1ec1n d\u1eabn \u0111\u00e1ng tin c\u1eady tr\u00ean c\u00e1c li\u00ean k\u1ebft \u0111i\u1ec7n v\u00e0 quang t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p t\u1ed5ng quan r\u00f5 r\u00e0ng v\u00e0 ch\u00ednh x\u00e1c v\u1ec1 ki\u1ebfn tr\u00fac SERDES, c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3, d\u1ef1a tr\u00ean c\u00e1c ngu\u1ed3n uy t\u00edn nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ieee-802-3-ethernet-standard-explained\/\">UL, RoHS, REACH<\/a> v\u00e0 c\u00e1c nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf I\/O t\u1ed1c \u0111\u1ed9 cao hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00f4ng ngh\u1ec7 SERDES chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u song song th\u00e0nh lu\u1ed3ng d\u1eef li\u1ec7u n\u1ed1i ti\u1ebfp t\u1ed1c \u0111\u1ed9 cao, cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb.<\/p><\/li><li><p>Vi\u1ec7c s\u1eed d\u1ee5ng SERDES l\u00e0m gi\u1ea3m s\u1ed1 \u0111\u01b0\u1eddng d\u00e2y c\u1ea7n thi\u1ebft cho vi\u1ec7c truy\u1ec1n th\u00f4ng, \u0111\u01a1n gi\u1ea3n h\u00f3a thi\u1ebft k\u1ebf b\u1ea3ng m\u1ea1ch v\u00e0 gi\u1ea3m chi ph\u00ed.<\/p><\/li><li><p>C\u00f4ng ngh\u1ec7 n\u00e0y n\u00e2ng cao t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u th\u00f4ng qua k\u1ef9 thu\u1eadt t\u00edn hi\u1ec7u vi sai, gi\u1ea3m thi\u1ec3u nhi\u1ec5u v\u00e0 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb.<\/p><\/li><li><p>C\u00f4ng ngh\u1ec7 n\u00e0y h\u1ed7 tr\u1ee3 c\u00e1c \u1ee9ng d\u1ee5ng t\u1ed1c \u0111\u1ed9 cao trong trung t\u00e2m d\u1eef li\u1ec7u, h\u1ec7 th\u1ed1ng \u00f4 t\u00f4 v\u00e0 \u0111i\u1ec7n to\u00e1n ti\u00ean ti\u1ebfn, \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ng\u00e0y c\u00e0ng gia t\u0103ng v\u1ec1 truy\u1ec1n d\u1eabn d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao.<\/p><\/li><li><p>Vi\u1ec7c hi\u1ec3u r\u00f5 SERDES gi\u00fap b\u1ea1n thi\u1ebft k\u1ebf c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n, t\u1eeb \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u n\u0103ng t\u1ed5ng th\u1ec3 trong c\u00e1c m\u00f4i tr\u01b0\u1eddng t\u1ed1c \u0111\u1ed9 cao.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >SERDES l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>SERDES (B\u1ed9 n\u1ed1i ti\u1ebfp\u2013gi\u1ea3i n\u1ed1i ti\u1ebfp)<\/strong> l\u00e0 m\u1ea1ch giao di\u1ec7n t\u1ed1c \u0111\u1ed9 cao chuy\u1ec3n \u0111\u1ed5i <strong>d\u1eef li\u1ec7u song song th\u00e0nh d\u1eef li\u1ec7u n\u1ed1i ti\u1ebfp<\/strong> \u0111\u1ec3 truy\u1ec1n \u0111i, sau \u0111\u00f3 kh\u00f4i ph\u1ee5c l\u1ea1i th\u00e0nh <strong>d\u1eef li\u1ec7u song song<\/strong> \u1edf ph\u00eda nh\u1eadn.<br\/>M\u1ee5c \u0111\u00edch c\u1ed1t l\u00f5i c\u1ee7a n\u00f3 l\u00e0 h\u1ed7 tr\u1ee3 <strong>truy\u1ec1n th\u00f4ng b\u0103ng th\u00f4ng r\u1ed9ng trong khi t\u1ed1i thi\u1ec3u h\u00f3a s\u1ed1 ch\u00e2n k\u1ebft n\u1ed1i, \u0111\u1ed9 l\u1ec7ch pha (skew) v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thay v\u00ec s\u1eed d\u1ee5ng c\u00e1c bus song song r\u1ed9ng\u2014y\u00eau c\u1ea7u h\u00e0ng ch\u1ee5c \u0111\u01b0\u1eddng m\u1ea1ch v\u00e0 t\u1ea1o ra ng\u00e2n s\u00e1ch \u0111\u1ed9 l\u1ec7ch pha l\u1edbn\u2014SERDES truy\u1ec1n d\u1eef li\u1ec7u qua <strong>m\u1ed9t ho\u1eb7c v\u00e0i k\u00eanh vi sai t\u1ed1c \u0111\u1ed9 cao<\/strong>. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a b\u1ea3ng m\u1ea1ch v\u00e0 cho ph\u00e9p th\u00f4ng l\u01b0\u1ee3ng cao h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >V\u00ec sao SERDES quan tr\u1ecdng trong truy\u1ec1n d\u1eabn d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i ph\u1ea3i h\u1ed7 tr\u1ee3 b\u0103ng th\u00f4ng l\u1edbn v\u1edbi m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n th\u1ea5p, \u0111\u1ed9 tr\u1ec5 th\u1ea5p v\u00e0 \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u cao. SERDES gi\u1ea3i quy\u1ebft c\u00e1c h\u1ea1n ch\u1ebf ch\u00ednh c\u1ee7a c\u00e1c giao di\u1ec7n song song truy\u1ec1n th\u1ed1ng:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >H\u1ea1n ch\u1ebf c\u1ee7a c\u00e1c bus song song<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Y\u00eau c\u1ea7u nhi\u1ec1u ch\u00e2n I\/O<\/p><\/li><li><p>Thi\u1ebft k\u1ebf m\u1ea1ch in (PCB) \u0111\u1ecbnh tuy\u1ebfn ph\u1ee9c t\u1ea1p<\/p><\/li><li><p>\u0110\u1ed9 l\u1ec7ch \u0111\u1ed3ng h\u1ed3 (clock skew) nghi\u00eam tr\u1ecdng \u1edf t\u1ed1c \u0111\u1ed9 \u0111a GHz<\/p><\/li><li><p>Cao h\u01a1n <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-electromagnetic-interference\/\">EMI<\/a> and <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/crosstalk-definition-causes-types-effects\/\">nhi\u1ec5u xuy\u00ean k\u00eanh<\/a><\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\u01afu \u0111i\u1ec3m c\u1ee7a SERDES<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>chuy\u1ec3n m\u1ea1ch ch\u1ecdn l\u1ecdc b\u01b0\u1edbc s\u00f3ng d\u1ef1a tr\u00ean WSS <strong>\u00edt c\u1eb7p vi sai h\u01a1n<\/strong><\/p><\/li><li><p>H\u1ed7 tr\u1ee3 <strong>t\u1ed1c \u0111\u1ed9 \u0111a gigabit<\/strong> truy\u1ec1n d\u1eabn<\/p><\/li><li><p>Cho ph\u00e9p kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u00e0i h\u01a1n tr\u00ean PCB, m\u1eb7t l\u01b0ng (backplane) v\u00e0 s\u1ee3i quang<\/p><\/li><li><p>T\u00edch h\u1ee3p c\u00e2n b\u1eb1ng n\u00e2ng cao v\u00e0 kh\u00f4i ph\u1ee5c \u0111\u1ed3ng h\u1ed3-d\u1eef li\u1ec7u (CDR)<\/p><\/li><li><p>Gi\u1ea3m t\u1ed5ng c\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 v\u00e0 chi ph\u00ed h\u1ec7 th\u1ed1ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 l\u00fd do v\u00ec sao SERDES \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ea7u h\u1ebft m\u1ecdi chu\u1ea9n t\u1ed1c \u0111\u1ed9 cao, bao g\u1ed3m Ethernet, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-pcl-express-pcie\/\">PCIe<\/a>, CPRI\/eCPRI, JESD204C v\u00e0 c\u00e1c m\u00f4-\u0111un quang nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\"><strong>SFP+<\/strong><\/a><strong> and <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\"><strong>QSFP+<\/strong><\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d852c13dec9d4530894c7416cbe7afdd.webp\" alt=\"What Is SERDES?\" class=\"wp-image-3795\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d852c13dec9d4530894c7416cbe7afdd.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d852c13dec9d4530894c7416cbe7afdd-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d852c13dec9d4530894c7416cbe7afdd-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d852c13dec9d4530894c7416cbe7afdd-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d852c13dec9d4530894c7416cbe7afdd-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a SERDES (T\u1ed5ng quan ki\u1ebfn tr\u00fac)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t k\u1ebft n\u1ed1i SERDES bao g\u1ed3m m\u1ed9t <strong>b\u1ed9 ph\u00e1t (TX)<\/strong> and <strong>v\u00e0 m\u1ed9t b\u1ed9 thu (RX)<\/strong> v\u1edbi nhi\u1ec1u kh\u1ed1i ch\u1ee9c n\u0103ng thi\u1ebft y\u1ebfu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >1 \u0110\u01b0\u1eddng d\u1eabn b\u1ed9 ph\u00e1t<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\u0110\u1ea7u v\u00e0o song song<\/strong> (v\u00ed d\u1ee5: 8, 16, 32 bit)<\/p><\/li><li><p><strong>B\u1ed9 n\u1ed1i ti\u1ebfp (Serializer)<\/strong><\/p><\/li><li><p><strong>M\u00e3 h\u00f3a<\/strong> (m\u00e3 8b\/10b, 64b\/66b ho\u1eb7c \u0111i\u1ec1u ch\u1ebf PAM4)<\/p><\/li><li><p><strong>Ti\u1ec1n nh\u1ea5n \/ C\u00e2n b\u1eb1ng (Pre-emphasis \/ Equalization)<\/strong><\/p><\/li><li><p>M\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef t\u1ed1c \u0111\u1ed9 cao <strong>\u0111\u1ea7u ra n\u1ed1i ti\u1ebfp<\/strong> qua m\u1ed9t c\u1eb7p vi sai<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >2 \u0110\u01b0\u1eddng d\u1eabn b\u1ed9 thu<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\u0110\u1ea7u v\u00e0o n\u1ed1i ti\u1ebfp t\u1ed1c \u0111\u1ed9 cao<\/strong><\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/clock-and-data-recovery-in-modern-communication-systems\/\"><strong>Kh\u00f4i ph\u1ee5c \u0111\u1ed3ng h\u1ed3-d\u1eef li\u1ec7u (Clock Data Recovery \u2013 CDR)<\/strong><\/a><\/p><\/li><li><p><strong>C\u00e2n b\u1eb1ng (b\u1ed9 l\u1ecdc CTLE\/DFE\/FIR)<\/strong><\/p><\/li><li><p><strong>B\u1ed9 t\u00e1ch n\u1ed1i ti\u1ebfp (Deserializer)<\/strong><\/p><\/li><li><p><strong>\u0110\u1ea7u ra song song<\/strong> t\u1edbi IC ch\u1ee7 (host IC)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f9ng nhau, nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0y cho ph\u00e9p truy\u1ec1n d\u1eabn \u1edf t\u1ed1c \u0111\u1ed9 <strong>10G, 25G, 50G, 112G PAM4<br><\/strong>, v\u00e0 cao h\u01a1n n\u1eefa.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >SERDES b\u00ean trong c\u00e1c b\u1ed9 thu ph\u00e1t quang QSFP+<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cd651e491893415f957e92cd79a64e69.webp\" alt=\"QSFP+ Optical Transceivers\" class=\"wp-image-3796\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cd651e491893415f957e92cd79a64e69.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cd651e491893415f957e92cd79a64e69-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cd651e491893415f957e92cd79a64e69-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cd651e491893415f957e92cd79a64e69-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/cd651e491893415f957e92cd79a64e69-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu ph\u00e1t quang QSFP+ 40G nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491483.htm\"><strong>LINK-PP LQ-SW40-SR4C<br><\/strong><\/a> ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o c\u00f4ng ngh\u1ec7 SERDES b\u00ean trong.<br\/>Theo<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-ieee-802-3ba-standard\/\"> IEEE 802.3ba<\/a> Theo chu\u1ea9n, m\u1ed9t m\u00f4-\u0111un QSFP+ s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>4 k\u00eanh SERDES \u0111i\u1ec7n t\u1ed1c \u0111\u1ed9 10,3125 Gbps<\/strong><\/p><\/li><li><p>\u0110\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1edfi chu\u1ea9n <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/xlppi-electrical-interface-in-40g-qsfp-plus-modules-explained\/\"><strong>XLPPI<\/strong><\/a><strong> (Giao di\u1ec7n v\u1eadt l\u00fd song song m\u1edf r\u1ed9ng 4 k\u00eanh \u2013 40G Extended Four-Lane Parallel Physical Interface)<\/strong><\/p><\/li><li><p>\u0110\u01b0\u1ee3c \u00e1nh x\u1ea1 sang <strong>4 k\u00eanh quang<\/strong> cho chu\u1ea9n 40GBASE-SR4<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >Vai tr\u00f2 c\u1ee7a SERDES b\u00ean trong m\u00f4-\u0111un<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Chuy\u1ec3n \u0111\u1ed5i c\u00e1c k\u00eanh SERDES \u0111i\u1ec7n t\u1eeb thi\u1ebft b\u1ecb ch\u1ee7 <strong>th\u00e0nh \u0111i\u1ec1u ch\u1ebf quang<\/strong> Qu\u1ea3n l\u00fd CDR cho t\u1eebng k\u00eanh<\/p><\/li><li><p>\u0110\u1ea3m b\u1ea3o \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u1ebft n\u1ed1i trong su\u1ed1t d\u1ea3i nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec7n \u00e1p thay \u0111\u1ed5i<\/p><\/li><li><p>Ho\u1ea1t \u0111\u1ed9ng c\u00f9ng quang h\u1ecdc song song cho k\u1ebft n\u1ed1i s\u1ee3i quang t\u1ea7m ng\u1eafn<\/p><\/li><li><p>V\u00ec v\u1eady, hi\u1ec7u n\u0103ng SERDES x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec5u (jitter tolerance) v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng k\u1ebft n\u1ed1i t\u1ed5ng th\u1ec3 c\u1ee7a m\u00f4-\u0111un.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a SERDES.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >C\u00e1c chu\u1ea9n d\u1ef1a tr\u00ean SERDES<\/h2>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 288px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"288\"><p>Lo\u1ea1i \u1ee9ng d\u1ee5ng<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Ethernet trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"288\"><p><strong>Ethernet 10G\/25G\/40G\/100G\/400G<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SFP+, QSFP+, QSFP28, QSFP-DD<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"288\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>M\u00f4-\u0111un quang<br><\/strong><\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1eb7t l\u01b0ng (backplane) &amp; chip-to-chip<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"288\"><p><strong>PCI Express, SAS\/SATA<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Vi\u1ec5n th\u00f4ng \/ Kh\u00f4ng d\u00e2y<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"288\"><p><strong>Vi\u1ec5n th\u00f4ng \/ Kh\u00f4ng d\u00e2y<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>CPRI, eCPRI, \u0110\u01a1n v\u1ecb Radio<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"288\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26454-dac-aoc-aec-cables.htm\"><strong>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u01b0\u01a1ng t\u1ef1-s\u1ed1\/s\u1ed1-t\u01b0\u01a1ng t\u1ef1 t\u1ed1c \u0111\u1ed9 cao<\/strong><\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>JESD204B \/ JESD204C<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea5t k\u1ef3 h\u1ec7 th\u1ed1ng n\u00e0o truy\u1ec1n d\u1eef li\u1ec7u \u1edf t\u1ed1c \u0111\u1ed9 \u0111a gigabit \u0111\u1ec1u ph\u1ee5 thu\u1ed9c v\u00e0o SERDES \u1edf \u0111\u00e2u \u0111\u00f3 trong \u0111\u01b0\u1eddng d\u1eabn t\u00edn hi\u1ec7u c\u1ee7a n\u00f3.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >T\u00f3m t\u1eaft<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SERDES l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng ngh\u1ec7 quan tr\u1ecdng nh\u1ea5t trong m\u1ea1ng hi\u1ec7n \u0111\u1ea1i. Nh\u1edd cho ph\u00e9p truy\u1ec1n d\u1eabn n\u1ed1i ti\u1ebfp t\u1ed1c \u0111\u1ed9 cao m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, SERDES \u0111\u00f3ng vai tr\u00f2 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a c\u00e1c m\u00f4-\u0111un quang Ethernet, ki\u1ebfn tr\u00fac chuy\u1ec3n m\u1ea1ch trung t\u00e2m d\u1eef li\u1ec7u, k\u1ebft n\u1ed1i chip-chip v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng th\u1ebf h\u1ec7 m\u1edbi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c s\u1ea3n ph\u1ea9m nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491483.htm\"><strong>M\u00f4-\u0111un QSFP+ LQ-SW40-SR4C c\u1ee7a LINK-PP<\/strong><\/a> d\u1ef1a v\u00e0o thi\u1ebft k\u1ebf SERDES ti\u00ean ti\u1ebfn \u0111\u1ec3 cung c\u1ea5p hi\u1ec7u n\u0103ng 40G \u1ed5n \u0111\u1ecbnh v\u1edbi kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c xu\u1ea5t s\u1eafc v\u00e0 \u0111\u1ed9 tin c\u1eady d\u00e0i h\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2666 SERDES l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SERDES l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a Serializer\/Deserializer (B\u1ed9 n\u1ed1i ti\u1ebfp\/B\u1ed9 gi\u1ea3i n\u1ed1i ti\u1ebfp). B\u1ea1n s\u1eed d\u1ee5ng n\u00f3 \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u song song th\u00e0nh d\u1eef li\u1ec7u n\u1ed1i ti\u1ebfp nh\u1eb1m truy\u1ec1n \u0111i, r\u1ed3i chuy\u1ec3n ng\u01b0\u1ee3c l\u1ea1i th\u00e0nh d\u1eef li\u1ec7u song song t\u1ea1i \u0111\u1ea7u thu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2666 L\u1ee3i th\u1ebf ch\u00ednh khi s\u1eed d\u1ee5ng SERDES l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng d\u00e2y d\u1eabn v\u00e0 ch\u00e2n k\u1ebft n\u1ed1i c\u1ea7n thi\u1ebft cho vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao. \u0110i\u1ec1u n\u00e0y gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a bo m\u1ea1ch in v\u00e0 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2666 C\u00e1c giao di\u1ec7n SERDES th\u01b0\u1eddng s\u1eed d\u1ee5ng lo\u1ea1i m\u00e3 h\u00f3a n\u00e0o?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n th\u01b0\u1eddng th\u1ea5y c\u00e1c l\u01b0\u1ee3c \u0111\u1ed3 m\u00e3 h\u00f3a nh\u01b0 8b\/10b, 64b\/66b v\u00e0 PAM4. Nh\u1eefng l\u01b0\u1ee3c \u0111\u1ed3 n\u00e0y gi\u00fap b\u1ea1n duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u v\u00e0 h\u1ed7 tr\u1ee3 kh\u00f4i ph\u1ee5c \u0111\u1ed3ng h\u1ed3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2666 Nh\u1eefng \u1ee9ng d\u1ee5ng n\u00e0o s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 SERDES?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n t\u00ecm th\u1ea5y SERDES trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">module quang<br><\/a>, c\u00e1c li\u00ean k\u1ebft chip-\u0111\u1ebfn-chip v\u00e0 c\u00e1c giao di\u1ec7n t\u1ed1c \u0111\u1ed9 cao nh\u01b0 Ethernet v\u00e0 PCI Express.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2666 T\u00edn hi\u1ec7u vi ph\u00e2n trong SERDES l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00edn hi\u1ec7u vi ph\u00e2n s\u1eed d\u1ee5ng hai d\u00e2y cho m\u1ed7i t\u00edn hi\u1ec7u. B\u1ea1n \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u t\u1ed1t h\u01a1n v\u00e0 gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eeb, nh\u1edd \u0111\u00f3 gi\u00fap d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n duy tr\u00ec \u0111\u1ed9 tin c\u1eady.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Xem Th\u00eam<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/ddm-dom-in-optical-transceivers\/\">T\u1ea7m quan tr\u1ecdng c\u1ee7a gi\u00e1m s\u00e1t k\u1ef9 thu\u1eadt s\u1ed1 trong c\u00e1c b\u1ed9 thu ph\u00e1t quang<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/single-fiber-vs-dual-fiber-transceivers\/\">Nh\u1eefng kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa b\u1ed9 thu ph\u00e1t s\u1ee3i quang \u0111\u01a1n v\u00e0 b\u1ed9 thu ph\u00e1t s\u1ee3i quang k\u00e9p<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/optical-transceiver-terminology-guide\/\">C\u00e1c thu\u1eadt ng\u1eef thi\u1ebft y\u1ebfu \u0111\u1ec3 hi\u1ec3u v\u1ec1 b\u1ed9 thu ph\u00e1t quang<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/optical-transceivers-vs-fiber-converters\/\">So s\u00e1nh b\u1ed9 thu ph\u00e1t quang v\u00e0 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ph\u01b0\u01a1ng ti\u1ec7n quang<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-optical-transceivers-transmit-data\/\">Qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u trong b\u1ed9 thu ph\u00e1t quang<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>C\u00e1c giao di\u1ec7n SERDES chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u song song th\u00e0nh d\u1eef li\u1ec7u n\u1ed1i ti\u1ebfp \u0111\u1ec3 truy\u1ec1n t\u1ea3i t\u1ed1c \u0111\u1ed9 cao v\u00e0 \u0111\u00e1ng tin c\u1eady, gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng d\u00e2y d\u1eabn v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u trong thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed.<\/p>","protected":false},"author":1,"featured_media":3797,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[14,18,19,26],"class_list":["post-3798","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-10g-sfp-transceivers","tag-40g-qsfp-transceivers","tag-aoc-dac-cables","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3798","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=3798"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3798\/revisions"}],"predecessor-version":[{"id":10872,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3798\/revisions\/10872"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3797"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}