DS280MB810
- Octal-Channel Multi-Protocol Linear Equalizer Supporting up to 28 Gbaud NRZ Interfaces
- Integrated 2x2 Cross-point with Pin or Register Control for Mux, Fanout, and Signal Crossing Applications
- Low Power Consumption: 93 mW / Channel (Typical)
- No Heat Sink Required
- Linear Equalization for Seamless Support of Link Training, Auto-Negotiation, and FEC Pass-Through
- Extends Channel Reach by 17dB+ Beyond Normal ASIC-to-ASIC Capability at 14 GHz
- Ultra-Low Latency: 100 ps (Typical)
- Low Additive Random Jitter
- Small 8 mm x 13 mm BGA Package with Integrated RX AC Coupling Capacitors for Easy Flow-Through Routing
- Unique Pinout Allows Routing High-Speed Signals Underneath the Package
- Pin-Compatible Retimer with Cross-point Available
- Single 2.5-V ±5% Power Supply
- –40°C to +85°C Operating Temperature Range
The DS280MB810 is an extremely low-power, high-performance eight-channel linear equalizer supporting multi-rate, multi-protocol interfaces up to 28 Gbaud NRZ. It is used to extend the reach and improve the robustness of high-speed serial links for backplane, front-port, and chip-to-chip applications.
The DS280MB810 includes a full 2x2 cross-point switch between each pair of adjacent channels which enables 2-to-1 multiplexing and 1-to-2 de-multiplexing applications for failover redundancy, as well as signal cross-over to aid PCB routing. The cross-point can be controlled through pins or the SMBus register interface.
The linear nature of the DS280MB810’s equalization preserves the transmit signal characteristics, thereby allowing the host and link partner ASICs to freely negotiate transmit equalizer coefficients (100G-CR4/KR4). This transparency to the link training protocol facilitates system-level interoperability with minimal effect on the latency. The DS280MB810 supports two-level pulse amplitude modulation (PAM), or NRZ, for symbol rates up to 28 Gbaud and peak signal amplitude within the linear operating range.
Each channel operates independently, and every channel can be configured uniquely. In most application scenarios, the same configuration can be used regardless of data rate.
The DS280MB810’s small package dimensions, optimized high-speed signal escape, and the pin-compatible Retimer portfolio make the DS280MB810 ideal for high-density backplane applications. Simplified equalization control, low power consumption, and ultra-low additive jitter make it suitable for front-port interfaces such as 100G-SR4/LR4/CR4. The small 8-mm x 13-mm footprint easily fits behind numerous standard front-port connectors like QSFP, SFP, CFP, and CDFP without the need for a heat sink.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | DS280MB810 Low Power 28 Gbps 8 Channel Linear Repeater with Cross-point datasheet (Rev. C) | PDF | HTML | 2020/10/13 | ||
| 應用說明 | Implementing Pin Compatible Ethernet Redrivers and Retimers | PDF | HTML | 2024/10/28 | |||
| 應用說明 | Optimal Implementation of 25G-28G Ethernet Retimers versus Redrivers (Rev. B) | PDF | HTML | 2023/5/1 | |||
| 更多文件說明 | Advanced Signal Conditioning Made Easy and Efficient | 2017/1/12 |
設計與開發
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DS280MB810EVM — 具有交叉點的 DS280MB810 28 Gbps 八通道線性中繼器評估模組
透過板上 USB2ANY 連線和 EVM 軟體，使用者可以評估裝置功能，例如均衡設定、寬頻帶幅度增益設定、驅動程式設定、EEPROM 檔案產生，以及其他暫存器功能。
TIDA-00427 — 雙埠 100GbE/40GbE/10GbE QSFP28 訊號調節器參考設計
這項經過驗證的參考設計為適用於前連接埠 QSFP28 的訊號調整解決方案，支援兩個符合 100G-CR4/SR4/LR4、40G-CR4/SR4/LR4 及 10G SFF-8431 要求的 100GbE 連接埠。此設計適用於光學和被動/主動銅纜。該設計可實現 Switch ASIC 與前端連接埠 QSFP28 之間的延伸連接，這通常是機架頂端 (ToR) 交換器的最外側連接埠或 QSFP28 線卡的附加夾層實作所必需。此參考設計可讓使用者彈性地從 DS280BR810 中繼器升級至接腳相容的 DS250DF810 重定時器。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| NFBGA (ZBL) | 135 | Ultra Librarian |
訂購與品質
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