DS250DF810 25 Gbps Multi-Rate 8-Channel Retimer | TI.com

DS250DF810 (ACTIVE)

25 Gbps Multi-Rate 8-Channel Retimer

25 Gbps Multi-Rate 8-Channel Retimer - DS250DF810
 

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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 2×2 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 insystem diagnostics.

Features

  • Octal-Channel Multi-Rate Retimer with Integrated
    Signal Conditioning
  • All Channels Lock Independently from 20.6 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

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Parametrics Compare all products in Ethernet retimers, redrivers/repeaters & MUX buffers

 
Device Type
Number of Channels (#)
Application
Input Compatibility
Speed (Max) (Gbps)
SupplyVoltage (Volt)
Protocols
Operating Temperature Range (C)
Package Group
Pin/Package
DS250DF810 DS100DF410 DS125DF111 DS125DF1610 DS125DF410 DS250DF210 DS250DF230 DS250DF410 DS280DF810
Retimer     Retimer     Retimer     Retimer     Retimer     Retimer     Retimer     Retimer     Retimer    
8     4     2     16     4     2     2     4     8    
Backplane
Front Port    
Front Port
Backplane    
Front Port
Backplane    
Front Port
Backplane    
Front Port
Backplane    
Backplane
Front Port
Active Cable    
Backplane Front Port Active Cable     Backplane
Front Port
Active Cable    
 
AC-Coupled
CML    
AC-Coupled
CML    
AC-Coupled
CML    
AC-Coupled
CML    
AC-Coupled
CML    
AC-Coupled
CML    
AC-Coupled CML     AC-Coupled
CML    
AC-Coupled
CML    
25.8     10.3       12.5     12.5     25.8     25.8     25.8     28.4    
2.5     2.5     2.5     2.5     2.5     2.5     2.5     2.5     2.5    
IEEE802.3bj
100GbE
Infiniband EDR
OIF-CEi-25G-LR/MR/SR/VSR
QSFP28
CFP2/CFP4
CDFP    
10G-SR/LR
40G-SR4/LR4
Infiniband
General Purpose    
10G-SR/LR
Infiniband
CPRI
Interlaken
General Purpose    
10G-SR/LR
40G-SR4/LR4
Infiniband
CPRI
Interlaken
General Purpose    
10G-SR/LR
40G-SR4/LR4
Infiniband
CPRI
Interlaken
General Purpose    
IEEE802.3bj
100GbE
Infiniband EDR
OIF-CEi-25G-LR/MR/SR/VSR
QSFP28
CFP2/CFP4
CDFP    
IEEE802.3bj 100GbE Infiniband EDR OIF-CEI-25G-LR/MR/SR/VSR CPRI QSFP28 CFP2/CFP4 CDFP     IEEE802.3bj
100GbE
Infiniband EDR
OIF-CEi-25G-LR/MR/SR/VSR
QSFP28
CFP2/CFP4
CDFP    
 
-10 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
FCBGA | 135     WQFN | 48     WQFN | 24     FCBGA | 196     WQFN | 48     FC/CSP | 101     NFBGA | 36     FC/CSP | 101     FCBGA | 135    
135FCBGA     48WQFN     24WQFN     196FCBGA     48WQFN     101FC/CSP     36NFBGA     101FC/CSP     135FCBGA