Texas Instruments DS280BR820 8-Channel Linear Repeater
Texas Instruments DS280BR820 8-Channel Linear Repeater is an extremely low-power, high-performance eight-channel linear equalizer supporting multi-rate, multi-protocol interfaces up to 28Gbps. This device 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 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.
Features
- 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
Applications
- Backplane/mid-plane reach extension
- QSFP28, SFP28, CFP2, CFP4, CDFP
- Front-port eye-opener for optical and passive copper (100G-SR4/LR4/CR4)
Videos
Simplified Schematic
Inilathala: 2016-10-18
| Na-update: 2022-03-11