DS280BR820
DS280BR820 is Low Power 28 Gbps 8 Channel Linear Repeater manufactured by Texas Instruments.
Features
- 1 Octal-Channel Multi-Protocol Linear Equalizer Supporting up to 28 Gbps Interfaces
- Low Power Consumption: 93 m W / Channel (Typical)
- No Heat Sink Required
- Linear Equalization for Seamless Support of Link Training, Auto-Negotiation, and FEC Pass Through
- Extends Channel Reach by 17 d B+ Beyond Normal ASIC-to-ASIC Capability
- 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-patible Retimer Available
- Single 2.5-V ±5% Power Supply
- - 40°C to +85°C Operating Temperature Range
2 Applications
- Backplane and Mid-Plane Reach Extension
- Front-Port Eye Opener for Optical and Passive Copper (100G-SR4/LR4/CR4)
- QSFP28, SFP28, CFP2, CFP4, CDFP
3 Description
The DS280BR820 is an extremely low-power, highperformance eight-channel linear equalizer supporting multi-rate, multi-protocol interfaces up to 28 Gbps. 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 linear nature of the DS280BR820’s equalization preserves the transmit signal characteristics, thereby allowing the host and link partner ASICs to freely negotiate transmit equalizer coefficients (100GCR4/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.
The DS280BR820's small package dimensions, optimized high-speed signal escape, and the pinpatible Retimer portfolio make the DS280BR820 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 100GSR4/LR4/CR4. The small 8-mm...
