SNLA335B september 2019 – may 2023 DS250DF210 , DS250DF230 , DS250DF410 , DS250DF810 , DS280BR810 , DS280BR820 , DS280DF810 , DS280MB810
Table 5-1 provides a summary of TI's portfolio of signal conditioning devices aimed at 25Gbps to 28Gbps system applications. TI's signal conditioning portfolio spans both retimer and redriver product types. TI's devices are suitable for use in systems spanning a wide range of applications requiring chip-to-chip channel reach extension, from Ethernet data center switches to telecommunications routers and CPRI equipment. Table 4 lists multiple features for each part number including channel count, package type and electrical performance parameters. TI's portfolio has the following differentiating features worth highlighting:
Features | DS280BR820 | DS280MB810 | DS250DF230 | DS250DF410 | DS280DF810 |
---|---|---|---|---|---|
Type | redriver | redriver | Retimer | Retimer | Retimer |
Data rate | up to 28.4Gbps | up to 28.4Gbps | 19.6-25.8Gbps 9.8-12.9Gbps 4.9-6.45Gbps | 20.2-25.8Gbps 10.1-12.9Gbps 5.05-6.4Gbps | 20.2-28.4Gbps 10.1-14.2Gbps 5.05-7.1Gbps |
Channel | 8 | 8 | 2 | 4 | 8 |
Mux | N/A | Quad 2x2 | Single 2x2 | Dual 2x2 | Quad 2x2 |
Rx Signal Conditioning Features | 2-Stage CTLE, Post-CTLE DC Gain | 2-Stage CTLE, Post-CTLE DC Gain | Adaptive 4-Stage CTLE, VGA, Post-CTLE DC Gain, Adaptive 5-Tap DFE, CDR | Adaptive 4-Stage CTLE, VGA, Post-CTLE DC Gain, Adaptive 5-Tap DFE, CDR | Adaptive 4-Stage CTLE, VGA, Post-CTLE DC Gain, Adaptive 5-Tap DFE, CDR |
Tx Signal Conditioning Features | 3-Tap FIR (Optional) | Linear Only | 3-Tap FIR | 3-Tap FIR | 3-Tap FIR |
Channel Reach Extension | 17dB+ | 17dB+ | 35dB | 35dB+ | 35dB+ |
Vcc | 2.5V | 2.5V | 2.5V | 2.5V | 2.5V |
Power | 90mW/ch | 90mW/ch | 315mW/ch | 315mW/ch | 315mW/ch |
Latency (Typ) | 100ps | 100ps | <500ps | <500ps | <500ps |
Integrated AC Coupling | Receiver Only | Receiver Only | N/A | N/A | Receiver and Transmitter |
Seamless FEC Pass-Through | Yes | Yes | Yes | Yes | Yes |
Link training support | Seamless Pass-Through | Seamless Pass-Through | Not supported | Not supported | Not supported |
Flow through Routing | Yes | Yes | Yes | Yes | Yes |
Package | 8mmx13mm nFBGA 0.8mm Pitch | 8mmx13mm nFBGA 0.8mm Pitch | 5mmx5mm nFBGA 0.8mm Pitch | 6mmx6mm fcBGA 0.5mm Pitch | 8mmx13mm fcBGA 0.8mm Pitch |
Front-Port Optical and Passive Connectors Supported | QSFP28 SFP28 CFP2/CFP4 CDFP 25G QSFP-DD | QSFP28 SFP28 CFP2/CFP4 CDFP 25G QSFP-DD | QSFP28 SFP28 CFP2/CFP4 CDFP 25G QSFP-DD | QSFP28 SFP28 CFP2/CFP4 CDFP 25G QSFP-DD | QSFP28 SFP28 CFP2/CFP4 CDFP 25G QSFP-DD |
IEEE Standards Supported | 100G-SR4/LR4/CR4 100G-KR4 CAUI-4 | 100G-SR4/LR4/CR4 100G-KR4 CAUI-4 | 100G-SR4/LR4/CR4 100G-KR4 (LT Disabled) CAUI-4 | 100G-SR4/LR4/CR4 100G-KR4 (LT Disabled) CAUI-4 | 100G-SR4/LR4/CR4 100G-KR4 (LT Disabled) CAUI-4 |
OIF Standards Supported | OIF-CEI-25G-LR/MR/SR/VSR | OIF-CEI-25G-LR/MR/SR/VSR | OIF-CEI-25G-LR/MR/SR/VSR | OIF-CEI-25G-LR/MR/SR/VSR | OIF-CEI-25G-LR/MR/SR/VSR |
Other Standards Supported | CPRI, eCPRI, JESD204, OTN(ITU-T G.709), Infiniband EDR Fibre Channel | CPRI, eCPRI, JESD204, OTN(ITU-T G.709), Infiniband EDR Fibre Channel | CPRI, eCPRI, JESD204, OTN(ITU-T G.709), Infiniband EDR Fibre Channel | CPRI, eCPRI, JESD204, OTN (ITU-T G.709), Infiniband EDR Fibre Channel | CPRI, eCPRI, JESD204, OTN(ITU-T G.709), Infiniband EDR Fibre Channel |
Debug Features | Signal Detect Interrupt Pin | Signal Detect Interrupt Pin | On-Chip Eye Opening Monitor PRBS Gen/Chkr Signal Detect, Interrupt Pin | On-Chip Eye Opening Monitor PRBS Gen/Chkr Signal Detect, Interrupt Pin | On-Chip Eye Opening Monitor PRBS Gen/Chkr Signal Detect, Interrupt Pin |
Pin Compatible With | DS280BR810, DS280MB810, DS250DF810, DS280DF810 | DS280BR810, DS280BR820, DS250DF810, DS280DF810 | N/A | N/A | DS280BR810, DS280BR820, DS280MB810, DS250DF810 |