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Product details

Parameters

Product type Retimer Number of channels (#) 4 Input compatibility AC-coupling, CML Speed (Max) (Gbps) 12.5 Protocols 10G-SR/LR, 40G-SR4/LR4, Infiniband, CPRI, Interlaken, General purpose Operating temperature range (C) -40 to 85 open-in-new Find other Ethernet retimers, redrivers & mux-buffers

Package | Pins | Size

WQFN (RHS) 48 49 mm² 7 x 7 open-in-new Find other Ethernet retimers, redrivers & mux-buffers

Features

  • Each Channel Independently Locks to Data Rates
    From 9.8 to 12.5 Gbps and Submultiples
  • Fast Lock Operation Based on Protocol-Select
    Mode
  • Low Latency (≈ 300 ps)
  • Adaptive Equalization up to 34-dB Boost at 5 GHz
  • Adjustable Transmit VOD: 600 to 1300 mVp-p
  • Adjustable Transmit De-emphasis to –15 dB
  • Typical Power Dissipation (EQ+CDR+DE):
    150 mW/Channel
  • Programmable Output Polarity Inversion
  • Input Signal Detection, CDR Lock Detection and
    Indicator
  • On-Chip Eye Monitor (EOM), PRBS Generator
  • Single 2.5-V ± 5% Power Supply
  • SMBus and EEPROM ConfigurationModes
  • Operating Temperature Range of –40 to 85°C
  • WQFN 48-Pin 7-mm × 7-mm Package
  • Easy Pin Compatible Upgrade Between Repeater
    and Retimers
    • DS100RT410 (EQ+CDR+DE): 10.3125 Gbps
    • DS100DF410 (EQ+DFE+CDR+DE):
      10.3125 Gbps
    • DS110RT410 (EQ+CDR+DE): 8.5 to
      11.3 Gbps
    • DS110DF410 (EQ+DFE+CDR+DE): 8.5 to
      11.3 Gbps
    • DS125RT410 (EQ+CDR+DE): 9.8 to
      12.5 Gbps
    • DS125DF410 (EQ+DFE+CDR+DE):
      9.8 to 12.5 Gbps
    • DS100BR410 (EQ+DE): Up to
      0.3125 Gbps
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Description

The DS125RT410 is a four-channel retimer with integrated signal conditioning. The device includes a fully adaptive continuous-time linear equalizer (CTLE), clock and data recovery (CDR), and a transmit de-emphasis (DE) driver to enable data transmission over long, lossy and crosstalk-impaired highspeed serial links to achieve BER < 1 × 10–15. For channels with a high amount of crosstalk, the DS125DF410 should be used because it has self calibrating 5-tap decision-feedback equalizer (DFE).

Each channel can independently lock to data rate from 9.8 to 12.5 Gbps, and associated subrates (divide by 2, 4, and 8) to support a variety of communication protocols. A 25-MHz crystal oscillator clock is used to speed up the CDR lock process. This clock is not used for training the PLL and does not need to be synchronous with the serial data.

The programmable settings can be applied using the SMBus (I2C) interface, or they can be loaded through an external EEPROM. An on-chip eye monitor and a PRBS generator allow real-time measurement of high-speed serial data for system bring-up or field tuning.

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Technical documentation

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Type Title Date
* Data sheet DS125RT410 Low-Power Multi-Rate Quad Channel Retimer datasheet (Rev. A) Oct. 28, 2015
User guides DS100DF410EVK, DS110DF410EVK, DS125DF410EVM User's Guide (Rev. C) Jun. 22, 2016
Application notes Understanding EEPROM Programming for 10G to 12.5G 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
$699.00
Description

The DS125DF410EVM evaluation board lets you examine the advanced signal conditioning capabilities of the DS125DF410 and DS125RT410 devices using SMAs. The board is controlled by a PC using a USB port and the SigCon Architect GUI.

To use the SigCon Architect GUI to control the device, use the  (...)

Features
  • Each channel independently locks to 9.8 to 12.5 Gbps and sub-multiples of the data rates
  • Lock time operation (typically under 15 ms)
  • Low latency (300 ps)
  • Adjustable transmit VOD: 600 to 1300 mVp-p
  • Adjustable transmit de-emphasis to -12 dB
  • Typical power dissipation (EQ+DFE+CDR+DE): 180 mW per channel
  • (...)

Design tools & simulation

SIMULATION MODELS Download
SNLM143.PDF (25 KB) - IBIS Model
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

CAD/CAE symbols

Package Pins Download
WQFN (RHS) 48 View options

Ordering & quality

Support & training

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