Texas Instruments DS280BR820 8通道线性中继器
Texas Instruments DS280BR820 8通道线性中继器是一款超低功耗、高性能八通道线性均衡器，支持数据传输速率高达28Gbps的多速率、多协议接口。 该器件可用于扩展长度范围并提高背板、前端口和芯片至芯片应用的高速串行链路的稳定性。 DS280BR820均衡器的线性特质保留了发射信号的特性，因此允许主机与链路合作伙伴ASIC自由协商发射均衡器系数(100G-CR4/KR4)。 这种链路协商协议的透明管理有助于在对延迟影响最小的情况下实现系统级互操作性。 每条通道独立运行，允许DS280BR820进行独立信道前向纠错(FEC)直通功能。
The linear nature of the Texas Instruments DS280BR820’s equalization preserves the transmit signal characteristics, thereby allowing the host and link partner ASICs to freely negotiate to transmit equalizer coefficients (100G-CR4/KR4). This transparency to the link training protocol facilitates system-level interoperability with minimal effect on the latency. Each channel operates independently, which allows the DS280BR820 to support individual lane Forward Error Correction (FEC) pass-through.
特性
- Octal-channel multi-protocol linear equalizer supporting up to 28Gbps interfaces
- 93mW / channel (typical) low power consumption
- 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
- 100ps (typical) ultra-low latency
- Low additive random jitter
- Small 8mm×13mm 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 available
- Single 2.5V ±5% power supply
- –40°C to +85°C operating temperature range
应用
- Backplane/mid-plane reach extension
- QSFP28, SFP28, CFP2, CFP4, CDFP
- Front-port eye-opener for optical and passive copper (100G-SR4/LR4/CR4)
视频
Simplified Schematic
发布日期: 2016-10-18
| 更新日期: 2022-03-11