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WT-SFP28-SR

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產品簡介

FEATURE lCompatible with CPRI option10 24.33Gbps and 25GBASE 25.78Gbps l100m transmission over OM4 MMF l70m transmission over OM3 MMF l850nm VCSEL laser transmitter l80nm high sensitivity PIN-TIA receiver lSFP28 MSA compliant lBuilt-in digital diagnostic

詳細介紹

FEATURE

l Compatible with CPRI option10 24.33Gbps and 25GBASE 25.78Gbps

l 100m transmission over OM4 MMF

l 70m transmission over OM3 MMF

l 850nm VCSEL laser transmitter

l 80nm high sensitivity PIN-TIA receiver

l SFP28 MSA compliant

l Built-in digital diagnostic functions

l Single +3.3V power supply
l Operating case temperature: -40 to +85 °C or 0 to +70 °C

l RoHS 6 Compliant

APPLICATIONS
l 25GBASE-SR

l 24.33Gbps CPRI

Outline drawing

Optical Characteristics

Transmitter
Parameter	Symbol	Min.	Typical	Max.	Unit	Notes
CenterWavelength	λ_t	840	850	860	nm
Average Optical Power, 25GE	P_avg	-6	-	2.4	dBm
Optical Modulation Amplitude, 25GE	OMA	-3.2	-	-	dBm
OMA–TDP, 25GE	OMA_TDP	-4	-	-	dBm
Average Output Power (Laser Turn off)	P_OFF	-	-	-30	dBm
Spectral Width (RMS)	σ		-	0.6	nm
Extinction Ratio, 25GE	ER	2	-	-	dB
Transmitter and Dispersion Penalty	TDP	-	-	3.13	dB	1
Optical Return Loss Tolerance	ORLT	-	-	11	dB
Receiver
Center Wavelength	λr	840	850	860	nm
Stressed OMA Sensitivity, 25GE		-	-	-5.2	dBm
OMA Sensitivity, 25GE@1E-6	P_{SEN_OMA}	-	-	-10.2	dBm
Average Rx Sensitivity, 25GE@1E-6	P_SEN	-	-	-10.3	dBm
Receiver Overload	P_IN-OL	2.5	-	-	dBm
Reflectance	Ref	-	-	-12	dB
LOS Assert	LOS_A	-30	-	-17	dBm
LOS De-assert	LOS_D	-	-	-17	dBm
LOS Hysteresis	LOS_H	0.5	-	-	dB

Notes:
1. Measured with a PRBS 2³¹-1 test pattern @25.78125 Gb/s.

Electrical Characteristics

	Transmitter (Module Input)
Parameter			Symbol	Min.	Typical	Max.	Unit	Notes
Differential Data Input Amplitude			V_IN_,_P-P	100	-	900	mVpp
Differential Input Impedance			Rin	-	100	-	Ω
Tx_Fault		Normal Operation	V_IL	-0.3	-	0.4	V
Tx_Fault		TxFault	V_IH	2.4	-	V_CC+0.3	V
Tx_Disable		Normal Operation	V_IL	-0.3	-	0.8	V
Tx_Disable		Laser Disable	V_IH	2.0	-	V_CC+0.3	V
	Receiver (Module Output)
Differential Data Output Amplitude			V_OUT_,_P-P	450	-	900	mVpp
Differential Output Impedance			Rout	-	100	-	Ω
Differential Termination Mismatch				-	-	±5	%
Output Rise/Fall Time, 20%~80%			T_R	9.5	-	-	ps
Rx_LOS		Normal Operation	V_OL	-0.3	-	0.4	V
Rx_LOS		Lose Signal	V_OH	2.4	-	V_CC+0.3	V