Generic Compatible 25G CWDM 10km SFP28 Duplex LC SMF Optical Transceiver Module

SPECIFICATIONS
Product Model	SFP28-25-CW-10-LCD	Manufacturer Brand	PHILISUN
Package Type	SFP28	Optical Connector	Duplex LC
Max Data Rate	25.78Gbps	Channel Data Rate	-
Effective Transmission Distance	10km
Wavelength	1270/1290/1310/1330/1350/1370/1470/1490/1510/1530/1550/1570nm	Operating Voltage	3.3V
Fiber Type	SMF	Core Size	9/125µm
Transmitter Type	DFB CWDM	Receiver Type	PIN
TX Power	0~6dBm	Receiver Sensitivity	<-14dBm
Digital Optical Monitoring(DOM)	YES	Receiver Overload	-
Power Consumption	1.3W	Protocols	MSA, CPRI, eCPRI
Operating Temperature(Commercial)	0℃~+70℃	Storage Temperature(Commercial)	-40℃~+85℃

PRODUCT PRESENTATION

The PHILISUN SFP28 25G CWDM 10km LC DX transceiver is a high-performance module designed for 25GBase-CWDM connectivity, delivering data rates of up to 25Gbps over single-mode fiber (SMF) with a range of 10km. Operating within a wavelength range of 1270nm to 1370nm and utilizing an LC duplex connector, this transceiver is ideal for 25G Ethernet, telecom, and data center applications.Fully compliant with the SFP28 MSA, CPRI, and eCPRI standards, it ensures seamless integration and reliable performance in high-speed network environments.

TRANSCEIVER SERIES PRODUCTS

PRODUCTION & TESTING EQUIPMENT

PERFORMANCE PARAMETER

Absolute Maximum Ratings
Parameter	Symbol	Min.	TyP.	Max.	Unit
Storage temperature	TS	-40	–	85	°C
Supply currnt	TS	–	–	330	mA
Maximum power dissipation	PD	–	–	1	W
Aggregate bit rate	ABR	24.33	–	25.78	Gb/s
Operating distance	–	2	–	10000	m

Recommended Operating Conditions
Parameter	Symbol	Min.	TyP.	Max.	Unit
Operating case temperature	TOP	0	–	70	°C
Power supply voltage	VCC	3.13	3.3	3.46	V
Instantaneous peak current at hot plug	ICC_IP	–	–	400	mA
Sustained peak current at hot plug	ICC_SP	–	–	330	mA

Optical Characteristics
Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Transmitter
Nominal wavelength	λC0	1264.5 1284.5 1304.5 1324.5 1344.5 1364.5	1271 1291 1311 1331 1351 1371	1277.5 1297.5 1317.5 1337.5 1357.5 1377.5	nm	–
Side-mode suppression ratio	SMSR	37	–	–	dB	–
Spectral width	Δλ	–	–	1	nm	–
OFF_average power	POFF	–	–	-40	dBm	–
Average optical power	POUTL	0	–	6	dBm	–
Optical modulation amplitude	OMA	0	–	6	dBm	–
Extinction ratio	ER	3.5	–	–	dB	–
Transmitter and dispersion penalt (1271/1291/1311nm/1331 nm)	TDP	–	–	3	dB	–
Transmitter and dispersion penalty(1351/1371nm)				4.5
Optical return loss tolerance	ORLT	–	–	20	dB	–
Eye mask margin	–	10@25℃ 5@70℃ &0℃	–	–	%	1
Crossing	–	40	50	60	%	–
Receiver
Center wavelength	λC0	1271	–	1371	nm	–
Overload input optical power	PMAX	3	–	–	dBm	–
Receiver sensitivity_OMA	BOL	–	–	-14.5	dBm	2
Receiver sensitivity (OMA)	EOL	–	–	-14	dBm	–
Optical return loss	ORL	27	–	–	dBm	–
Receiver reflectance	RXR	–	–	-30	dBm	–
LOS de-assert	LOSD	–	–	-17	dBm	–
LOS assert	LOSA	-30	–	–	dBm	–
LOS hysteresis	–	0.5	–	4	dB	–
Notes: 1 . EYE Mask Margin test conditions, sample waveform ≥1000 wfms, Hit Ratio 5E-5. 2. Measured with a PRBS 231-1 test pattern @25.78125Gbps, BER≤5E-5.

Electrical Characteristics
Parameter	Symbol	Min.	Typ.	Max.	Unit
Supply voltage	VCC	3.14	3.3	3.46	V
Supply current	Icc	–	–	330	mA
Transmitter
Input differential impedance	Rin	–	100	–	Ω
Single ended data input swing	VIN	90	–	450	mVp-p
Transmit disable voltage	VDIS	2	–	VCCHOST+0.3	V
Transmit enable voltage	VEN	VEE	–	VEE+0.8	V
Transmit fault assert voltage	VFA	2.2	–	VCCHOST+0.3	V
Transmitfault de-assert voltage	VFDA	VEE	–	VEE+0.4	V
Receiver
Single ended data output swing	VOD	225	–	375	mVp-p
LOS fault	LOS_FT	2.2	–	VCCHOST+0.3	V
LOS normal	LOS_Nor	VEE	–	VEE+0.4	V

Pin No.	Symbol	Logic	Description
1,7,20	VeeT	–	Connected to signal ground on the host board.
2	TX fault	LVTTL output	Module transmitter fault output
3	TX disable	LVTTL input	Module transmitter disable control
4	SDA	LVTTL input/output	2-wire serial interface data
5	SCL	LVTTL input/output	2-wire serial interface clock
6	MOD_ABS	–	Module absent (connected to module ground)
7	RS0	LVTTL input	Rate select 0 (Rx): Low=CDR Bypass; high=CDR select
8	LOS	LVTTL output	Receiver loss of signal
9	RS1	LVTTL input	Rate select 1 (Tx): Low=CDR Bypass; high=CDR select
10,11,14	VeeR	–	Connected to signal ground on the host board.
12	RD-	CML output	Receiver inverted data output, internally AC coupled and terminated.
13	RD+	CML output	Receiver non-inverted data output, internally AC coupled and terminated.
15	VccR	–	Receiver power 3.3V supply
16	VccT	–	Transmitter power 3.3V supply
18	TD+	CML input	Transmitter non-inverted data input, internally AC coupled and terminated.
19	TD-	LVTTL output	Transmitter inverted data Input, internally AC coupled and terminated.

Parameter	Range	Accuracy	Unit
DDM Accuracy
Operating case temperature	0 to 70	±3	℃
Voltage	3.13 to 3.46	±3%	V
Tx bias current (each lane)	20 to 80	±10 %	mA
Tx output power (each lane)	0 to 6	±2	dB
Rx power (each lane)	-14.5 to 3	±2	dB

Parameter	Comments	Unit
DDM Alarm & warning threshold
Temp high alarm	75	℃
Temp low alarm	-5	℃
Temp high warning	70	℃
Temp low warning	0	℃
VCC high alarm	3.63	V
VCC low alarm	2.97	V
VCC high warning	3.46	V
VCC low warning	3.13	V
Tx bias high alarm	100	mA
Tx bias low alarm	10	mA
Tx bias high warning	80	mA
Tx bias low warning	20	mA
Tx power high alarm	8.2	dBm
Tx power low alarm	-3	dBm
Tx power high warning	6	dBm
Tx power low warning	0	dBm
Rx power high alarm	5	dBm
Rx Power Low Alarm	-16.5	dBm
Rx Power High Warning	3	dBm
Rx Power Low Warning	-14.5	dBm