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DS560DF810

ACTIVE

56-Gbps, eight-channel retimer with 2x2 crosspoint

Product details

Type Retimer Mux Number of channels 8 Input compatibility AC-coupling, CML Speed (max) (Gbps) 56 Protocols 100G-CR, 100GbE, CDFP, CFP2/CFP4, IEEE802.3bj, Infiniband EDR, OIF-CEi-25G-LR/MR/SR/VSR/CR, QSFP28 Operating temperature range (°C) -40 to 85
Type Retimer Mux Number of channels 8 Input compatibility AC-coupling, CML Speed (max) (Gbps) 56 Protocols 100G-CR, 100GbE, CDFP, CFP2/CFP4, IEEE802.3bj, Infiniband EDR, OIF-CEi-25G-LR/MR/SR/VSR/CR, QSFP28 Operating temperature range (°C) -40 to 85
FCCSP (ALU) 135 104 mm² 13 x 8
  • -channel multi-protocol retimer with integrated signal conditioning
  • All channels lock independently to both PAM4 and NRZ data rates from 19.6 to 28.9 GBd (including div-by-2 and div-by-4 sub-rates)
  • Suitable for up to CEI-56G, Ethernet™ (400 GbE), fibre channel (64GFC), InfiniBand™ (HDR), and CPRI/eCPRI PCB, copper cable, and optical applications
  • Automatic lane rate switching for CDR lock up to five different combinations of baud rates and modulation types
  • Low latency: <2000 ps (typical) at 26.5625 GBd
  • Continuously adaptive time linear equalizer (CTLE), RX feed-forward equalizer (FFE), and decision feedback equalizer (DFE) to support 30+ dB channel loss at 13.28 GHz
  • Integrated 2×2 crosspoint
  • Adjustable 4-tap TX FFE filter
  • Gearbox mode support (NRZ/PAM4 bit mux/de-mux, NRZ/PAM4 serializer/deserializer)
  • On-chip eye opening monitor (EOM), PRBS generator, and PRBS checker for debug
  • Dual 1.8-V and 1.2-V supplies
  • –40°C to +85°C operating temperature range
  • 8.00 mm × 13.00 mm BGA package with integrated AC coupling capacitors
  • -channel multi-protocol retimer with integrated signal conditioning
  • All channels lock independently to both PAM4 and NRZ data rates from 19.6 to 28.9 GBd (including div-by-2 and div-by-4 sub-rates)
  • Suitable for up to CEI-56G, Ethernet™ (400 GbE), fibre channel (64GFC), InfiniBand™ (HDR), and CPRI/eCPRI PCB, copper cable, and optical applications
  • Automatic lane rate switching for CDR lock up to five different combinations of baud rates and modulation types
  • Low latency: <2000 ps (typical) at 26.5625 GBd
  • Continuously adaptive time linear equalizer (CTLE), RX feed-forward equalizer (FFE), and decision feedback equalizer (DFE) to support 30+ dB channel loss at 13.28 GHz
  • Integrated 2×2 crosspoint
  • Adjustable 4-tap TX FFE filter
  • Gearbox mode support (NRZ/PAM4 bit mux/de-mux, NRZ/PAM4 serializer/deserializer)
  • On-chip eye opening monitor (EOM), PRBS generator, and PRBS checker for debug
  • Dual 1.8-V and 1.2-V supplies
  • –40°C to +85°C operating temperature range
  • 8.00 mm × 13.00 mm BGA package with integrated AC coupling capacitors

The DS560DF810 is an eight-channel multi-rate retimer with integrated signal conditioning. It extends the reach and robustness of long, lossy, crosstalk-impaired high-speed serial links.

Each channel in the DS560DF810 independently locks to symbol rates (PAM4 and NRZ) in a continuous range from 19.6 to 28.9 GBd or to any supported sub-rate. The integrated CDR function is an excellent choice for front-port optical module applications to reset the jitter budget and retime the high-speed serial data. These features allow for individual lane forward error correction (FEC) pass-through. In addition, the DS560DF810 supports automatic lane rate switching for CDR lock up to five different combinations of baud rates and modulation types without host intervention.

The advanced equalization features of the DS560DF810 include a continuously adaptive continuous-time linear equalizer (CTLE), RX feed-forward equalizer (FFE), decision feedback equalizer (DFE), and a programmable, low-jitter 4-tap TX feed-forward equalizer (FFE) filter. These features enable reach extension for lossy interconnects such as direct-attach copper (DAC) cables and backplanes with multiple connectors and crosstalk.

The DS560DF810 is equipped with a bit mux and de-mux gearbox for simple NRZ-to-PAM4 or PAM4-to-NRZ conversion between host and module. The gearbox is capable of aggregating a pair of NRZ inputs up to 28.9 GBd into one 28.9 GBd PAM4 output as well as de-aggregating a single 28.9 GBd PAM4 input into a pair of 28.9 GBd NRZ outputs.

The DS560DF810 implements a full 2×2 crosspoint between each pair of adjacent channels after the CDR to enable fast and flexible lane switching for PCB routing flexibility, 2-to-1 multiplexing and 1-to-2 de-multiplexing for failover redundancy, and 1-to-2 fanout for diagnostic monitoring. In addition, integrated physical AC coupling capacitors (TX and RX) eliminate the need for external capacitors on the PCB. These features reduce PCB routing complexity and bill of material (BOM) cost.

Diagnostic capabilities include a non-destructive PAM4/NRZ vertical eye height monitor, a 2D PAM4/NRZ eye opening monitor (EOM), PRBS pattern generator with error injector module, PRBS error checker, and on-die temperature sensor. These features help to gauge the margin of the link and can be used to monitor the health of the system over time.

The DS560DF810 can be configured either through I 2C or through an external EEPROM. Up to 16 devices can share a single EEPROM.

The DS560DF810 is an eight-channel multi-rate retimer with integrated signal conditioning. It extends the reach and robustness of long, lossy, crosstalk-impaired high-speed serial links.

Each channel in the DS560DF810 independently locks to symbol rates (PAM4 and NRZ) in a continuous range from 19.6 to 28.9 GBd or to any supported sub-rate. The integrated CDR function is an excellent choice for front-port optical module applications to reset the jitter budget and retime the high-speed serial data. These features allow for individual lane forward error correction (FEC) pass-through. In addition, the DS560DF810 supports automatic lane rate switching for CDR lock up to five different combinations of baud rates and modulation types without host intervention.

The advanced equalization features of the DS560DF810 include a continuously adaptive continuous-time linear equalizer (CTLE), RX feed-forward equalizer (FFE), decision feedback equalizer (DFE), and a programmable, low-jitter 4-tap TX feed-forward equalizer (FFE) filter. These features enable reach extension for lossy interconnects such as direct-attach copper (DAC) cables and backplanes with multiple connectors and crosstalk.

The DS560DF810 is equipped with a bit mux and de-mux gearbox for simple NRZ-to-PAM4 or PAM4-to-NRZ conversion between host and module. The gearbox is capable of aggregating a pair of NRZ inputs up to 28.9 GBd into one 28.9 GBd PAM4 output as well as de-aggregating a single 28.9 GBd PAM4 input into a pair of 28.9 GBd NRZ outputs.

The DS560DF810 implements a full 2×2 crosspoint between each pair of adjacent channels after the CDR to enable fast and flexible lane switching for PCB routing flexibility, 2-to-1 multiplexing and 1-to-2 de-multiplexing for failover redundancy, and 1-to-2 fanout for diagnostic monitoring. In addition, integrated physical AC coupling capacitors (TX and RX) eliminate the need for external capacitors on the PCB. These features reduce PCB routing complexity and bill of material (BOM) cost.

Diagnostic capabilities include a non-destructive PAM4/NRZ vertical eye height monitor, a 2D PAM4/NRZ eye opening monitor (EOM), PRBS pattern generator with error injector module, PRBS error checker, and on-die temperature sensor. These features help to gauge the margin of the link and can be used to monitor the health of the system over time.

The DS560DF810 can be configured either through I 2C or through an external EEPROM. Up to 16 devices can share a single EEPROM.

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Type Title Date
* Data sheet DS560DF810 56 Gbps Multi-Rate 8-Channel Retimer with Crosspoint datasheet (Rev. B) PDF | HTML 14 Apr 2023
EVM User's guide DS560DF810 EVM User's Guide (Rev. A) PDF | HTML 19 Dec 2022
Certificate DS560DF810EVM EU RoHS Declaration of Conformity (DoC) 27 Jul 2022

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Evaluation board

DS560DF810EVM — DS560DF810 56-Gbps multi-rate 8-channel retimer evaluation module

The DS560DF810 evaluation board module (EVM) allows the user to quickly evaluate both the high-speed and low-speed functionality of the DS560DF810 retimer. It supports retimed operation for PAM4 and NRZ data rates from 19.6 to 28.9 GBd. 1.2 V and 1.8 V are managed on the EVM through an onboard (...)
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