1 Features

• Each Channel Independently Locks to
  10.3125 Gbps
• Lock Operation (Typically Under 15 ms)
• Low Latency (≈300 ps)
• Adaptive Equalization up to 34-dB Boost at 5 GHz
• Adjustable Transmit V_OD: 600 to 1300 mVp-p
• Adjustable Transmit De-emphasis to –12 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 Configuration Modes
• Operating Temperature Range of –40°C 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 10.3125 Gbps

2 Applications

• Front Port SFF 8431 (SFP+) Optical and Direct Attach Copper
• Backplane Reach Extension, Data Retimer
• Ethernet: 10 GbE, 1 GbE

For other data rates and data transmission protocols, other pin-compatible devices in the retimer family can be used.

3 Description

The DS100RT410 is a four-channel retimer with integrated signal conditioning. Each channel can independently lock to 10.3125-Gbps data rate to support 10 GbE. 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 DS100DF410 should be used because it has self-calibrating 5-tap decision-feedback equalizer (DFE).

The programmable settings can be applied easily 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. Flow-through pinout and single power supply make the DS100RT410 easy to use.

1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Diagram

4 Revision History

Changes from * Revision (January 2013) to A Revision

• Added Device Information table, ESD Ratings table, Thermal Information table, Detailed Description section, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go
• Changed Channel Register 33 to Reserved. Go