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Product details

Parameters

Product type Retimer Mux Number of channels (#) 8 Input compatibility AC-coupling, CML Speed (Max) (Gbps) 25.8 Protocols IEEE802.3bj, 100GbE, Infiniband EDR, OIF-CEi-25G-LR/MR/SR/VSR, QSFP28, CFP2/CFP4, CDFP Operating temperature range (C) -10 to 85 open-in-new Find other Ethernet retimers, redrivers & mux-buffers

Package | Pins | Size

FCBGA (ABV) 135 104 mm² 13 x 8 open-in-new Find other Ethernet retimers, redrivers & mux-buffers

Features

  • 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

All trademarks are the property of their respective owners.

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Description

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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More Information

The IBIS AMI models, device programming guide and device GUI profile, are available: Request now

Technical documentation

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No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet DS250DF810 25 Gbps Multi-Rate 8-Channel Retimer datasheet (Rev. C) Oct. 24, 2019
Application notes Optimal Implementation of 25G-28G Ethernet Retimers versus Redrivers (Rev. A) Jan. 07, 2020
User guides DS250DF810EVM User's Guide (Rev. C) Sep. 03, 2019
Application notes Transmitter Optimization for ≥ 25Gbps Retimer Links Sep. 08, 2017
More literature Advanced Signal Conditioning Made Easy and Efficient Jan. 12, 2017
Application notes Green box testing: A method for optimizing high-speed serial links Jul. 21, 2016
Technical articles Designing a 25G system: 5 tips to balance power, performance and price Feb. 01, 2016
Application notes Understanding EEPROM Programming for 25G and 28G Repeaters and Retimers Jan. 13, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$1,499.00
Description

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 (...)

Features
  • Programmable via on board USB2ANY and EVM software
  • Supports data rates up to 25.8Gbps
  • EVM supports single supply (2.5V or 3.3V)

Design tools & simulation

SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

Reference designs

REFERENCE DESIGNS Download
2-port 100GbE/40GbE/10GbE QSFP28 Signal Conditioner Reference Design
TIDA-00427 This verified reference design is a signal conditioning solution for front-port QSFP28 supporting two 100GbE ports compatible with 100G-CR4/SR4/LR4, 40G-CR4/SR4/LR4 and 10G SFF-8431 requirements. The design is applicable to optical and passive/active copper cables. It allows for reach extension (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
FCBGA (ABV) 135 View options

Ordering & quality

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