JFOPT SFP28 25G DWDM Optical Transceiver - C-band 10km LC Duplex

Product model	JFTSM-SFP28-25-DWC-10-LCD	Manufacturer brand	JFOPT
Package type	SFP28	Optical connector	Duplex LC
Max data rate	25.78G	Channel data rate	-
Effective transmission distance	10km
Wavelength	C17-C61	Operating voltage	3.3V
Fiber type	SMF	Core size	9/125
Transmitter type	EML DWDM	Receiver type	PIN
TX power	-2~6dBm	Receiver sensitivity	<-12dBm
Digital optical monitoring(DOM)	YES	Receiver overload	-
Power consumption	2W	Protocols	MSA, CPRI, eCPRI
Operating temperature(Commercial)	0℃~+70℃	Storage temperature(Commercial)	-40℃~+85℃

PRODUCTION LINE INTRODUCTION

JFOPT continues to invest in optical transceiver production, covering a full range of optical transceiver such as 1*9, SFP, 10G, 25G, 100G, 200G, 400G, 800G GPON/EPON/XG/XGSPON OLT transceiver. At the same time, our company provides TOSA, ROSA, BOSA semi-finished device solutions for the downstream peer. JFOPT's production line has a daily production capacity of 10,000 optical transceivers and 20,000 optical devices. In addition, JFOPT's optical transceiver have industry-leading high temperature resistance and anti-interference capability, and are widely used in computing centers, operators, traffic security, power facilities and other industries.

PRODUCT PRESENTATION

The JFOPT SFP28 25G DWDM (C Band) 10km LC DX transceiver is a high-performance module designed to deliver 25GBase-DWDM connectivity over single-mode fiber (SMF) for distances up to 10km. Utilizing an LC duplex connector, it provides reliable 25GBASE Ethernet connectivity for 25G Ethernet, telecommunications, and data center applications.This transceiver is fully compliant with SFP28 MSA specifications as well as CPRI and eCPRI standards, ensuring compatibility and seamless integration into modern network infrastructures.

TRANSCEIVER SERIES PRODUCTS

PRODUCTION & TESTING EQUIPMENT

FEATURES

Fully RoHS compliant					All metal housing for superior EMI performance
Operating data rate 9.83Gbps to 25.78125Gbps					Digital monitoring SFF-8472 rev 10.2 compliant
Cooled EML DFB laser					APD receiver
LC duplex connector					Hot plug gable 20pin connector
Low power consumption ≤2W					-40C to 85C operating wide temperature range
Single +3.3V ±5% power supply					RealTime monitoring of：transmitted optical power received optical power laser bias current temperature supply voltage

APPLICATION

25G Ethernet

Data center

STANDARD COMPLIANCE

ABSOLUTE MAXIMUM RATINGS

Parameter	Symbol	Min.	Max.	Unit
Storage temperature range	TS	-40	85	°C
Relative humidity	RH	-	95	%

RECOMMENDED OPERSTING CONDITIONS

Parameter	Symbol	Min.	Typ.	Max.	Unit
Operating case temperature range	TC	-40	-	85	°C
Power supply voltage	VCC	3.14	3.3	3.46	V
Bit rate	BR	-	25.78125	-	Gb/s
Bit error ratio	BER	-	-	5 E-5	-
Max supported link length	L	-	-	10	km

OPTICAL CHARACTERISTICS

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Transmitter
Nominal wavelength	λC	1529.55	-	1561.42	nm	-
Center wavelength spacing	ΔT	-	100	-	GHz	-
Wavelength tolerance	ΔCW	-80	-	80	pm	-
Side mode suppression ratio	SMSR	30	-	-	dB	-
Spectral width(-20dB)	Δλ	-	-	0.5	nm	-
Average optical power	Pavg	0	-	5	dBm	-
Extinction ratio	ER	6	-	-	dB	-
Mask Margin\|5E -5	Margin	10	-	-	%	-
Dispersion Penalty	TDP	-	-	3	dB	-
Average optical power of transmitter off	Poff	-	-	-30	dBm	-
Receiver
Center wavelength	λC	1260	-	1620	nm	-
Transmitting distance	TD		-	10	km	-
Average receiver sensitivity	Sens	-	-	-18	dBm	-
Receiver iverload	Rod	-5	-	-	dBm	-
Optical return loss	ORL	26	-	1561.42	dB	-
LOS assert	LOSA	-35	-	-	dBm	-
LOS de-assert	LOSD	-	-	-19	dBm	-
LOS hysteresis	LOSH	0.5	-	5	dB	-

ELECTRICAL CHARACTERISTICS

Parameter	Symbol	Min.	Typ.	Max.	Unit
Supply voltage	VCC	3.14	3.3	3.46	V
Power consumption	Por	-	-	2	W
Transmitter
Input differential impedance	Rin	90	100	110	Ω
Differential data input	VIN	190	-	700	mVp-p
Transmit disable voltage	VDIS	2	-	VCCHOST	V
Transmit enable voltage	VEN	VEE	-	VEE+0.8	V
Transmit fault assert voltage	VFA	2	-	VCCHOST	V
Transmitfault de-assert voltage	VFDA	VEE	-	VEE+0.4	V
Receiver
Differential data output	VOD	350	-	850	mVp-p
Output rise time@20%~80%	tRISE	25	-	-	PS
Output fall time@20%~80%	tFALL	25	-	-	PS
LOS fault	VLOSFT	2	-	VCCHOST	V
LOS normal	VLOSNR	VEE	-	VEE+0.4	V

PIN DEFINITIONS

PIN DESCRIPTION

Pin	Symbol	Name	Description
1,17,20	VeeT	Transmitter signal ground	These pins should be connected to signal ground on the host board.
2	TX fault	Transmitter fault out(OC)	Logic“1 ”output = laser fault (laser off before t_fault) Logic“0”output = normal operation This pin is open collector compatible, and should be pulled up to Host Vcc with a 10k Ω resistor.
3	TX disable	Transmitter disable in(LVTTL)	Logic“1 ”input (or no connection) = Laser off Logic“0”input = laser on This pin is internally pulled up to Vc cT with a 10 kΩ resistor.
4	SDA	Module definition identifiers	Serial ID with S FF 8472 diagnostics module Definition pins should be pulled up to Host Vcc with 10kΩ resistors.
5	SCL
6	MOD_ABS
7	RS0	Receiver rate select (LVTTL) Transmitter rate select (LVTTL)	These pins have an internal 30k Ω pull-down to ground. A signal on either of these pins will not affect module performance.
9	RS1
8	LOS	Loss of signal out(OC)	Sufficient optical signal for potential BER < 1 x 1 0- 1 2 = Logic“0” Insufficient optical signal for potential BER < 1 x 1 0- 1 2 = Logic“1 ” This pin is open collector compatible, and should be pulled up to Host Vcc with a 1 0k Ω resistor.
10,11,14	VeeR	Receiver signal ground	These pins should be connected to signal ground on the host board.
12	RD-	Receiver negative DATA out(CML)	Light on = logic“0”output receiver DATA out put is internally AC coupled and series termin ated with a 50Ω resistor.
13	RD+	Receiver positive DATA out (CML)	Light on = Logic“1 ”Output Receiver DATA output is internally AC coupled and series terminated with a 50Ω resistor.
15	VccR	Receiver power supply	This pin should be connected to a filtered +3.3V power supply on the host board.See Figure 3.recommended power supply filter
16	VccT	Transmitter power supply	This pin should be connected to a filtered +3.3V power supply on the host board.See Figure 3.Recommended power supply filter
18	TD+	Transmitter positive DATA in (CML)	Logic“1 ”Input = Light on Transmitter DATA inputs are internally AC coupled and terminated with a differential 100Ω resistor.
19	TD-	Transmitter negative DATA in (CML)	Logic“0”Input = Light on Transmitter DATA inputs are internally AC coupled and terminated with a differential 100Ω resistor.

DDM ACCURACY

Parameter	Symbol	Min .	Max.	Unit
Temperature	TC	-3	3	℃
Voltage	VC	-3	3	%
Ibias	ICC	-10	10	%
Tx power	TXPWR	-3	3	dB
Rx power	RXPWR	-3	3	dB

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