• 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 VOD: 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

• 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.

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.