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DS280BR820

AKTIV

8-Kanal-Redriver mit 28 Gbit/s und geringem Stromverbrauch

Produktdetails

Type Redriver Number of channels 8 Speed (max) (Gbpp) 28.125 Input compatibility CML Protocols 100G-CR, 100GbE, CDFP, CFP2/CFP4, IEEE802.3bj, Infiniband EDR, OIF-CEi-25G-LR/MR/SR/VSR/CR, QSFP28 Operating temperature range (°C) -40 to 85
Type Redriver Number of channels 8 Speed (max) (Gbpp) 28.125 Input compatibility CML Protocols 100G-CR, 100GbE, CDFP, CFP2/CFP4, IEEE802.3bj, Infiniband EDR, OIF-CEi-25G-LR/MR/SR/VSR/CR, QSFP28 Operating temperature range (°C) -40 to 85
NFBGA (ZBL) 135 104 mm² (13 mm × 8 mm)
  • Octal-Channel Multi-Protocol Linear Equalizer Supporting up to 28 Gbps Interfaces
  • 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 17 dB+ 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-Compatible Retimer Available
  • Single 2.5-V ±5% Power Supply
  • –40°C to +85°C Operating Temperature Range
  • Octal-Channel Multi-Protocol Linear Equalizer Supporting up to 28 Gbps Interfaces
  • 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 17 dB+ 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-Compatible Retimer Available
  • Single 2.5-V ±5% Power Supply
  • –40°C to +85°C Operating Temperature Range

The DS280BR820 is an extremely low-power, high-performance 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 (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.

The DS280BR820’s small package dimensions, optimized high-speed signal escape, and the pin-compatible 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 100G-SR4/LR4/CR4. The small 8-mm x 13-mm footprint easily fits behind numerous standard front-port connectors like QSFP, SFP, CFP2, CFP4, and CDFP without the need for a heat sink.

Integrated AC coupling capacitors (RX side) eliminate the need for external capacitors on the PCB. The DS280BR820 has a single power supply and minimal need for external components. These features reduce PCB routing complexity and bill of materials (BOM) cost.

A pin-compatible Retimer device is available for longer reach applications.

The DS280BR820 can be configured either through the SMBus or through an external EEPROM. Up to 16 devices can share a single EEPROM.

The DS280BR820 is an extremely low-power, high-performance 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 (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.

The DS280BR820’s small package dimensions, optimized high-speed signal escape, and the pin-compatible 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 100G-SR4/LR4/CR4. The small 8-mm x 13-mm footprint easily fits behind numerous standard front-port connectors like QSFP, SFP, CFP2, CFP4, and CDFP without the need for a heat sink.

Integrated AC coupling capacitors (RX side) eliminate the need for external capacitors on the PCB. The DS280BR820 has a single power supply and minimal need for external components. These features reduce PCB routing complexity and bill of materials (BOM) cost.

A pin-compatible Retimer device is available for longer reach applications.

The DS280BR820 can be configured either through the SMBus or through an external EEPROM. Up to 16 devices can share a single EEPROM.

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Evaluierungsplatine

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Dieses verifizierte Referenzdesign ist eine Signalkonditionierungslösung für den Front-Port QSFP28, die zwei 100-GbE-Ports unterstützt, die mit den Anforderungen von 100G-CR4/SR4/LR4, 40G-CR4/SR4/LR4 und 10G SFF-8431 kompatibel sind. Das Design ist für optische und passive/aktive Kupferkabel (...)

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