JFOPT SFP28 BIDI 25G 1270/1330nm 20km ELR LC SX Transceiver - Single-Fiber Bidirectional Optical Module

Product model	JFTSM-SFP28BD-25-1213-20(ELR)-LC	Manufacturer brand	JFOPT
Package type	SFP28	Optical connector	Simplex LC
Max data rate	25.78Gbps	Channel data rate	-
Effective transmission distance	20km
Wavelength	1270nm-TX/1330nm-RX	Operating voltage	3.3V
Fiber type	SMF	Core size	9/125
Transmitter type	DFB BiDi	Receiver type	PIN
TX power	0~6dBm	Receiver sensitivity	<-14dBm
Digital optical monitoring(DOM)	YES	Receiver overload	2.5dBm
Power consumption	≤1.2W	Protocols	eCPRI, SFF-8472, SFF-8432, SFF-8431
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 BIDI 25G 1270/1330nm 20km ELR LC SX transceiver is a high-performance module designed for bidirectional optical data transmission over single-mode fiber, supporting distances of up to 20km. It complies with SFF-8472, SFF-8402, SFF-8432, and applicable sections of SFF-8431 standards.Equipped with digital diagnostic monitoring via a 2-wire serial interface, as outlined in SFF-8472, this transceiver ensures reliable performance and precise monitoring for seamless integration into high-speed network applications.

TRANSCEIVER SERIES PRODUCTS

PRODUCTION & TESTING EQUIPMENT

FEATURES

Up to 20 km transmission distance					LC single connector
Low power consumption <1.2W					-40℃ to 85℃ operating case temperature range
Single 3.3V±5% power supply					Compliant with SFF-8472

APPLICATION

25GBASE-LR

CPRI option 10 / eCPRI

STANDARD COMPLIANCE

ORDERING INFORMATION

Form Factor	Data Rate(Gb/s)	Laser	Average Power (dBm)		Detector	OMA Sensitivity 5E-5 (dBm)		Top (℃)	Reach （km）
SFP28	25.78125	1270nm DFB	0~6		PIN	<-14		-40~85	20

ABSOLUTE MAXIMUM RATINGS

Parameter	Symbol	Unit	Min.	Max.
Storage temperature range	TS	°C	-40	85
Relative humidity	RH	%	0	85
Supply voltage	VCC	V	-0.3	3.6

RECOMMENDED OPERSTING CONDITIONS

Parameter	Symbol	Unit	Min.	Typ.	Max.
Operating case temperature range	Tc	℃	-40	-	85
Power supply voltage	VCC	V	3.135	3.3	3.465
Bit rate	BR	Gb/s	24.33024	25.78125	-
Max. supported link length	L	km	10	20	-

ELECTRICAL CHARACTERISTICS

Parameter	Symbol	Unit	Min.	Typ.	Max.	Note
Supply voltage	VCC	V	3.14	3.3	3.46	-
Supply current	Icc	mA	-	-	360	@3.3V
Transmitter
Input differential impedance	Rin	Ω	-	100	-	-
Single ended data input swing	VIN	mVp-p	90	-	450	-
Transmit disable voltage	VDIS	V	2	-	VCCHOST	-
Transmit enable voltage	VEN	V	VEE	-	VEE+0.8	-
Transmit fault assert voltage	VFA	V	2.2	-	VCCHOST	-
Transmitfault de-assert voltage	VFDA	V	VEE	-	VEE+0.4	-
Receiver
Single ended data output swing	VOD	mVp-p	200	-	450	-
LOS fault	VLOSFT	V	2.2	-	VccHOST	-
LOS normal	VLOSNR	V	VEE	-	Vee+0.4	-

OPTICAL CHARACTERISTICS

Parameter	Symbol	Unit	Min.	Typ.	Max	Notes
Transmitter
Center wavelength range	λ	nm	1320	-	1340	Downstream
			-	-	1280	Upstream
Spectral width \| -20dB	-	nm	-	-	1	-
Side mode suppression ratio	SMSR	dB	30	-	-	-
Average launch power	PAVG	dBm	0	-	6	-
OMA launch power	POMA	dBm	-2	-	-	-
Transmitter and dispersion penalty 25G \| BER=5E-5	TDP	dB	-	-	4	-
Average launch power of OFF transmitter	POFF	dBm	-	-	-30	-
Extinction ratio	ER	dB	3.5	-	-	-
RIN20OMA	RIN	dB/Hz	-	-	-130	-
Optical return loss tolerance	-	dB	-	-	20	-
Mask margin	-	%	5	-	-	1
Note 1: Template: {0.31, 0.40, 0.45, 0.34, 0.38, 0.40}, Hit Ratio: 5E-5

Parameter	Symbol	Unit	Min.	Typ.	Max	Notes
Receiver
Center wavelength	λr	nm	1260	1270	1280	Downstream
			1320	1330	1340	Upstream
Overload	-	dBm	2.5	-	-	-
OMA receiver sensitivity up to 25G 5E-5	POMA	dBm	-	-	-14	-
LOS de-assert	LOSA	dBm	-30	-	-	-
Los assert	LOSD	dBm	-	-	-17	-
Los hysteresis	-	dB	0.5	-	-	-

PIN FUNCTION DEFINITIONS

TRANSCEIVER PIN DESCRIPTIONS

Pin No.	Symbol	Logic	Description
1	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-	CML input	Transmitter inverted data Input, internally AC coupled and terminated

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