Datasheet

Datasheet Transceiver
Transmitter Optical Characteristics
Parameter Symbol Minimum Typical Maximum Unit
Signaling Speed per Lane 53.125 GBd
Modulation Format PAM4
Lane_0 Center Wavelength
λC0
1264.5 1277.5nm
Lane_1 Center Wavelength
λ
C1 1284.5 1297.5nm
Lane_2 Center Wavelength
λ
C2 1304.5 1317.5nm
Lane_3 Center Wavelength
λ
C3 1324.5 1337.5nm
Side-mode Suppression Ratio SMSR 30 dB
Total Average Launch Power 9.3 dBm
Average Launch Power, Each Lane *
(note 1)
TxAVG -3.33.5 dBm
Outer Optical Modulation Amplitude (OMA
outer
),
Each Lane*
(note 2)
TxOMA -0.33.7 dBm
Difference in Launch Power Between Any Two
Lanes (OMA
outer
)
4dB
Launch Power in OMA
outer
Minus TDECQ, Each
Lane:
For Extinction Ratio ≥ 4.5 dB
For Extinction Ratio < 4.5 dB
OMA
outer
-TDECQ
-1.7
-1.6
dBm
Transmitter and Dispersion Eye Closure for PAM4
(TDECQ), Each Lane
TDECQ 3.4dB
TDECQ-10*log10 (Ceq), Each Lane*
(note 3)
3.4dB
Average Launch Power of OFF Transmitter, Each
Lane
-20 dBm
Extinction RatioER3.5 dB
Transmitter Transition Time 17 ps
RIN17.1 OMA -136 dB/Hz
Optical Return Loss Tolerance 17.1dB
Transmitter Reflectance*
(note 4)
-26 dB
*Note 1: Average launch power, each lane (min) is informative and not the principal indicator of signal strength. A transmitter with launch power below
this value cannot be compliant; however, a value above this does not ensure compliance.
*Note 2: Even if the TDECQ < 1.4 dB for an extinction ratio of ≥ 4.5 dB or TDECQ < 1.3 dB for an extinction ratio of < 4.5 dB, the OMAouter (min) must
exceed this value.
*Note 3: Ceq is a coefficient defined in IEEE Std 802.3-2018 clause 121.8.5.3 which accounts f or reference equalizer noise enhancement.
*Note 4: Transmitter reflectance is defined looking into the transmitter.