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DS250DF810

ACTIVO

Retemporizador multifrecuencia de 8 canales y 25 Gbps

Detalles del producto

Type Retimer Mux Number of channels 8 Speed (max) (Gbpp) 25.8 Input compatibility AC-coupling, CML Protocols 100GbE, CDFP, CFP2/CFP4, IEEE802.3bj, Infiniband EDR, OIF-CEi-25G-LR/MR/SR/VSR, QSFP28 Operating temperature range (°C) -10 to 85
Type Retimer Mux Number of channels 8 Speed (max) (Gbpp) 25.8 Input compatibility AC-coupling, CML Protocols 100GbE, CDFP, CFP2/CFP4, IEEE802.3bj, Infiniband EDR, OIF-CEi-25G-LR/MR/SR/VSR, QSFP28 Operating temperature range (°C) -10 to 85
FCCSP (ABV) 135 104 mm² (13 mm × 8 mm)
  • Octal-channel multi-rate retimer with integrated signal conditioning
  • All channels lock independently from 20.2752 to 25.8 Gbps (including sub-rates like 10.3125 Gbps, 12.5 Gbps, and more)
  • Ultra-low latency: <500 ps typical for 25.78125 Gbps data rate
  • Single power supply, no low-jitter reference clock required, and integrated ac coupling capacitors to reduce board routing complexity and BOM cost
  • Integrated 2×2 cross point
  • Adaptive continuous time linear equalizer (CTLE)
  • Adaptive decision feedback equalizer (DFE)
  • Low-jitter transmitter with 3-Tap FIR filter
  • Combined equalization supporting 35+ dB channel loss at 12.9 GHz
  • Adjustable transmit amplitude: 205 mVppd to 1225 mVppd (typical)
  • On-chip eye opening monitor (EOM), PRBS pattern checker/generator small 8 mm × 13 mm BGA package with easy flow-through routing
  • Unique pinout allows routing high-speed signals underneath the package
  • Pin-compatible repeater available
  • Octal-channel multi-rate retimer with integrated signal conditioning
  • All channels lock independently from 20.2752 to 25.8 Gbps (including sub-rates like 10.3125 Gbps, 12.5 Gbps, and more)
  • Ultra-low latency: <500 ps typical for 25.78125 Gbps data rate
  • Single power supply, no low-jitter reference clock required, and integrated ac coupling capacitors to reduce board routing complexity and BOM cost
  • Integrated 2×2 cross point
  • Adaptive continuous time linear equalizer (CTLE)
  • Adaptive decision feedback equalizer (DFE)
  • Low-jitter transmitter with 3-Tap FIR filter
  • Combined equalization supporting 35+ dB channel loss at 12.9 GHz
  • Adjustable transmit amplitude: 205 mVppd to 1225 mVppd (typical)
  • On-chip eye opening monitor (EOM), PRBS pattern checker/generator small 8 mm × 13 mm BGA package with easy flow-through routing
  • Unique pinout allows routing high-speed signals underneath the package
  • Pin-compatible repeater available

The DS250DF810 is an eight-channel multi-rate Retimer with integrated signal conditioning. It is used to extend the reach and robustness of long, lossy, crosstalk-impaired high-speed serial links while achieving a bit error rate (BER) of 10-15 or less.

Each channel of the DS250DF810 independently locks to serial data rates in a continuous range from 20.6 Gbps to 25.8 Gbps or to any supported sub-rate (÷2 and ÷4), including key data rates such as 10.3125 Gbps and 12.5 Gbps, which allows the DS250DF810 to support individual lane Forward Error Correction (FEC) pass-through.

Integrated physical AC coupling capacitors (TX and RX) eliminate the need for external capacitors on the PCB. The DS250DF810 has a single power supply and minimal need for external components. These features reduce PCB routing complexity and BOM cost.

The advanced equalization features of the DS250DF810 include a low-jitter 3-tap transmit finite impulse response (FIR) filter, an adaptive continuous-time linear equalizer (CTLE), and an adaptive decision feedback equalizer (DFE). This enables reach extension for lossy interconnect and backplanes with multiple connectors and crosstalk. The integrated CDR function is ideal for front-port optical module applications to reset the jitter budget and retime the high-speed serial data. The DS250DF810 implements 2x2 cross-point on each channel pair, providing the host with both lane crossing and fanout options.

The DS250DF810 can be configured either via the SMBus or through an external EEPROM. Up to 16 devices can share a single EEPROM. A non-disruptive on-chip eye monitor and a PRBS generator/checker allow for in-system diagnostics.

The DS250DF810 is an eight-channel multi-rate Retimer with integrated signal conditioning. It is used to extend the reach and robustness of long, lossy, crosstalk-impaired high-speed serial links while achieving a bit error rate (BER) of 10-15 or less.

Each channel of the DS250DF810 independently locks to serial data rates in a continuous range from 20.6 Gbps to 25.8 Gbps or to any supported sub-rate (÷2 and ÷4), including key data rates such as 10.3125 Gbps and 12.5 Gbps, which allows the DS250DF810 to support individual lane Forward Error Correction (FEC) pass-through.

Integrated physical AC coupling capacitors (TX and RX) eliminate the need for external capacitors on the PCB. The DS250DF810 has a single power supply and minimal need for external components. These features reduce PCB routing complexity and BOM cost.

The advanced equalization features of the DS250DF810 include a low-jitter 3-tap transmit finite impulse response (FIR) filter, an adaptive continuous-time linear equalizer (CTLE), and an adaptive decision feedback equalizer (DFE). This enables reach extension for lossy interconnect and backplanes with multiple connectors and crosstalk. The integrated CDR function is ideal for front-port optical module applications to reset the jitter budget and retime the high-speed serial data. The DS250DF810 implements 2x2 cross-point on each channel pair, providing the host with both lane crossing and fanout options.

The DS250DF810 can be configured either via the SMBus or through an external EEPROM. Up to 16 devices can share a single EEPROM. A non-disruptive on-chip eye monitor and a PRBS generator/checker allow for in-system diagnostics.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos DS250DF810 25 Gbps Multi-Rate 8-Channel Retimer datasheet (Rev. C) PDF | HTML 24/10/2019
Nota sobre la aplicación Implementing Pin Compatible Ethernet Redrivers and Retimers PDF | HTML 28/10/2024
Nota sobre la aplicación Optimal Implementation of 25G-28G Ethernet Retimers versus Redrivers (Rev. B) PDF | HTML 1/05/2023
Nota sobre la aplicación DS2X0DF810 Junction Temperature Readback and Temperature Lock Range (TLR) Extens PDF | HTML 24/05/2021
Nota sobre la aplicación Transmitter Optimization for ≥ 25Gbps Retimer Links 8/09/2017
Más documentación Advanced Signal Conditioning Made Easy and Efficient 12/01/2017
Analog Design Journal Green box testing: A method for optimizing high-speed serial links 21/07/2016
Artículo técnico Designing a 25G system: 5 tips to balance power, performance and price PDF | HTML 1/02/2016
Nota sobre la aplicación Understanding EEPROM Programming for 25G and 28G Repeaters and Retimers PDF | HTML 13/01/2016

Diseño y desarrollo

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Placa de evaluación

DS250DF810EVM — Módulo de evaluación de retemporizador de 8 canales, multifrecuencia y 25 Gbps

The DS250DF810EVM allows for easy evaluation of the 25 Gbps retimer DS250DF810. Users are required to supply power and high speed traffic to the EVM via Huber+Suhner 1x8 MXP connectors. Huber+Suhner cables are not included.

Through the onboard USB2ANY connection and EVM software, users can evaluate (...)

Guía del usuario: PDF
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Diseño de referencia

TIDA-00427 — Diseño de referencia del acondicionador de señal QSFP28+ de 2 puertos de 100 GbE/40 GbE/10 GbE

Este diseño de referencia verificado es una solución de acondicionamiento de señal para puertos frontales QSFP28 que admite dos puertos 100 GbE, compatible con los estándares 100G-CR4/SR4/LR4, 40G-CR4/SR4/LR4 y 10G SFF-8431. El diseño es aplicable a cables ópticos y pasivos/activos de cobre. (...)

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