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1.6T Transceiver · OSFP-XD · 8×200G PAM4

T5-class DSP Rx equalization — watch each lane converge from raw ADC samples to KP4-clean symbols.

aggregate
0.00 Tb/s
lanes locked
0/8
module temp
49.9 °C
DSP
Luma T5
OSFP-XD skeleton · top view
MPO-16 ⇄ LC-8 · CWDM8 · 26.5 dB power budget
host · 8 × 200G PAM4 electricalMPO-16LUMA T55nm · 224G SerDesDSP · gearbox · KP4 FECEML array8 × driverPIN + TIA8 × Rx front-endλ0λ1λ2λ3λ4λ5λ6λ7host edgeDSP · T5optics
click a lane trace above or a row below to inspect its DSP pipeline · tick 0
T5 Rx equalization pipeline
lane λ0 · 1271 nm · pre-FEC BER 2.00e-3 · post-FEC 1.0e-15 · SNR 6.9 dB
KP4 threshold 2.4×10⁻⁴
stage 1
TIA
linear front-end
100% converged
→
stage 2
ADC
7-bit · 106 GSa/s
100% converged
→
stage 3
CTLE
continuous-time EQ
0% converged
→
stage 4
FFE
31-tap feed-fwd
0% converged
→
stage 5
CDR
baud-rate timing
0% converged
→
stage 6
DFE
5-tap decision fbk
0% converged
→
stage 7
MLSE
maximum-likelihood
0% converged
→
stage 8
SLICER
PAM4 → 2b
0% converged
→
stage 9
KP4 FEC
RS(544,514)
0% converged
PAM4 eye · post-DSP
lane λ0
eye opening 5% · SNR 6.9 dB
FFE tap weights
31-tap · adaptive LMS
31 taps · LMS μ=2⁻¹⁰
DFE decision feedback
5 post-cursor taps
5 taps · LMS μ=2⁻¹⁰
per-lane telemetry · 8 × 200G
laneλ nmRx dBmTx bias mAtemp °CSNR dBpre-FECpost-FECstate
λ01271-2.3263.551.46.92.00e-31.0e-15◐ training
λ11291-3.0764.650.06.62.00e-31.0e-15◐ training
λ21311-3.2166.151.07.52.00e-31.0e-15◐ training
λ31331-2.8563.452.06.92.00e-31.0e-15◐ training
λ41351-2.6465.548.96.42.00e-31.0e-15◐ training
λ51371-2.7363.248.47.42.00e-31.0e-15◐ training
λ61391-2.2467.349.57.72.00e-31.0e-15◐ training
λ71411-2.1062.748.26.82.00e-31.0e-15◐ training