JFOPT SFP BIDI 1.25G 1310/1550nm 1-80km LC/SC Transceiver

Product model	JFTSM-SFPBD-1.25-1315-1/3/10/20/40/60/80-LC/SC	Manufacturer brand	JFOPT
Package type	SFP	Optical connector	Simplex SC/LC
Max data rate	up to 1.25G	Channel data rate	-
Effective transmission distance	1/3/10/20/40/60/80KM
Wavelength	1310nm/1550nm 1550nm/1310nm	Operating voltage	3.3V
Fiber type	1KM MMF 3/10/20/40/60/80KM SMF	Core size	1KM 50/125µm 3/10/20/40/60/80KM 9/125µm
Transmitter type	FP/DFB	Receiver type	IDP
TX power	1KM -9.5~-3dbm 3KM -14~-8dbm 10KM -9~-3dbm 20KM -8~-3dbm 40KM -3~2dbm 60KM 0~5dbm 80KM 0~5dbm	Receiver sensitivity	1/10KM -21dbm 3/20KM -22dbm 40KM -23dbm 60KM -24dbm 80KM -33dbm
Digital optical monitoring(DDM)	YES	Receiver overload	-3dbm
Power consumption	<1W	Protocols	1/3/10/20/40/60KM -3dbm 80KM -12dbm
Operating temperature(Commercial)	0℃~+70℃	Storage temperature(Commercial)	-40℃~+85℃
Operating temperature(Industrial)	-40℃~+85℃	Storage Temperature(Industrial)	-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 SFP BIDI 1.25G 1310/1550nm LC/SC SX Transceiver series, a compact small form-factor pluggable module designed for single-fiber bi-directional communication in Gigabit Ethernet 1000BASE-BX and Fiber Channel applications, utilizes a 1310nm/1550nm transmitter paired with a 1550nm/1310nm receiver to support transmission distances of 1km, 3km, 10km, 20km, 40km, 60km, and 80km. Featuring a 20-pin SFP connector with hot-plug capability for simplified installation and maintenance, its transmitter section incorporates a Class 1 laser fully compliant with IEC 60825 international safety standards, while the receiver section employs an advanced optical detection system—including an integrated B-type/A-type detector preamplifier (IDP) mounted in an optical header and a precision limiting post-amplifier IC—to ensure reliable signal reception and processing, with design adherence to SFF-8472 Multi-Source Agreement (MSA) guaranteeing industry-standard compatibility and interoperability for seamless network integration.

TRANSCEIVER SERIES PRODUCTS

PRODUCTION & TESTING EQUIPMENT

FEATURES

Support 1.25Gbps data links					1000m with 50/125µm MMF（800Mhz*km）
550m with 62.5/125µm MMF（500Mhz*km）					3km with 9/125 µm SMF
10km with 9/125 µm SMF					20km with 9/125 µm SMF
40km with 9/125 µm SMF for EOLS-BI1X12-40 series 60km with 9/125 µm SMF for EOLS-BI1X12-60 series 80km with 9/125 µm SMF for EOLS-BI1X12-80 series					A type: 1310nm FP Tx/1550nm Rx B type: 1550nm FP Tx/1310nm Rx
A type: 1310nm DFB TX /1550nm RX B type: 1550nm DFB TX /1310nm RX					A type: 1310nm FP TX /1550nm RX B type: 1550nm DFB TX /1310nm RX
Single 3.3V power supply and TTL logic interface					Hot-pluggable SFP footprint simplex SC/LC connector interface
Operating case temperature Standard: 0℃~+70℃ Industrial:-40℃~+85℃					Safety certification: TUV/UL/FDA

APPLICATION

Gigabit ethernet switches and routers				Fiber channel switch infrastructure
CPRI rate: 1.228Gbps				Fiber channel links
Gigabit ethernet				Fast ethernet
WDM gigabit ethernet links				Other optical links
FTTX Application

STANDARD COMPLIANCE

ORDERING INFORMATION

Part No.	Data Rate	Wavelength	Distance	Interface	Temp	DDMI
JFTSM-SFPBD-1.25-1315-1-LC/SC	1.25Gbps	1310/1550mm	0.55~1km	SC	Standard	YES
		1310/1550mm			Industrial
		1310/1550mm		LC	Standard	YES
		1310/1550mm			Industrial
JFTSM-SFPBD-1.25-1315-3-LC/SC	1.25Gbps	1310/1550mm	3km	SC	Standard	YES
		1310/1550mm			Industrial
		1310/1550mm		LC	Standard	YES
		1310/1550mm			Industrial
JFTSM-SFPBD-1.25-1315-10/20/40/60/ 80-LC/SC	1.063/ 1.25Gbps	1310/1550mm	10/20/40/60/80km	SC	Standard	YES
		1310/1550mm			Industrial
		1310/1550mm		LC	Standard	YES
		1310/1550mm			Industrial

ABSOLUTE MAXIMUM RATINGS

Parameter	Symbol	Min.	Max.	Unit
Storage temperature	TS	-4.0	+85	℃
Supply voltage	VCC	-0.5	3.6	V
Operating relative humidity	-	-	95	%
Exceeding any one of these values may destroy the device immediately.

RECOMMENDED OPERATING ENVIRONMENT

Parameter		Symbol		Min	Typical	Max	Unit
Operating case temperature		Tc	JFTSM-SFPBD-1.25-1315-1/3/10/20/40/60/80-LC/SC	0	-	+70	°C
Operating case temperature		Tc	JFTSM-SFPBD-1.25-1315-1/3/10/20/40/60/80-LC/SC	-40	-	+85	°C
Power supply voltage		Vcc		3.15	3.3	3.45	V
Power supply current		Icc		-	-	300	mA
Date rate	FE	-		-	100	-	Mbps
	FC			-	1.063	-	Gbps
	GBE			-	1.25	-	Gbps

PERFORMANCE SPECIFICATIONS–ELECTRICAL

Parameter		Symbol	Min.	Typ.	Max.	Unit	Notes
Transmitter
LVPECL inputs(Differential)		Vin	400	-	2000	mVpp	AC coupled inputs
Input impedance (Differential)		Zin	85	100	115	ohm	Rin > 100 kohm @ DC
TX_dis	Disable	-	2	-	Vcc+0.3	V	-
TX_dis	Enable	-	0	-	0.8	V	-
TX_FAULT	Fault	-	2	-	Vcc+0.3	V	-
TX_FAULT	Normal	-	0	-	0.5	V	-
Receiver
LVPECL outputs (Differential)		Vout	370	-	2000	mVpp	AC coupled output
Output impedance(Differential)		Zout	85	100	115	ohms	-
RX_LOS	LOS	-	2	-	Vcc+0.3	V	-
RX_LOS	Normal	-	0	-	0.8	V	-
MOD_DEF ( 0:2 )		VoH	2.5	-	-	V	With serial ID
MOD_DEF ( 0:2 )		VoL	0	-	0.5	V	With serial ID

OPTICAL AND ELECTRICAL CHARACTERISTICS

Parameter	Symbol	Unit	1310nm FP and PIN, 550m			1310nm FP and PIN, 3km			1310nm FP and PIN, 10km			1310nm FP and PIN, 20km
Parameter	Symbol	Unit	Min.	Typical	Max.	Min.	Typical	Max.	Min.	Typical	Max.	Min.	Typical	Max.
50µm core diameter MMF(800Mhz*km)	L	m	-	-	1000	-	-	-	-	-	-	-	-	-
62.5 core diameter MMF(500Mhz*km)	L	m	-	-	550	-	-	-	-	-	-	-	-	-
9µm core diameter SMF	L	km	-	-	-	-	3	-	-	10	-	-	20	-
Data rate	-	Gbps	100	1.063/1.25	-	100	1.063/1.25	-	100	1.063/1.25	-	100	1.063/1.25	-
Transmitter
Center wavelength	λC	nm	1260	1310	1360	1260	1310	1360	1270	1310	1350	1290	1310	1330
Spectral width(-20dB)	Δλ	nm	-	-	4	-	-	4	-	-	3.5	-	-	3.5
Average output power	Pout	dBm	-9.5	-	-3	-14	-	-8	-9	-	-3	-8	-	-3
Extinction ratio	ER	dB	6	-	-	6	-	-	6	9	-	6	9	-
Rise/Fall time(20%～80%)	tr/tf	ns	-	-	0.26	-	-	0.26	-	-	0.26	-	-	0.26
Total jitter	TJ	ps	-	-	56.5	-	-	260	-	-	260	-	-	260
Output optical eye	-	-	Compatible with IEEE 802.3ah-2004			Compliant with IEEE 802.3 ah-2004			Compliant with IEEE 802.3 ah-2004			Compliant with IEEE 802.3 ah-2004
TX disable assert time	t_off	us	-	-	10	-	-	10	-	-	10	-	-	10
Pout@TX disable asserted	Pout	dBm	-	-	-45	-	-	-45	-	-	-45	-	-	-45
Receiver
Center wavelength	λC	nm	1500	1550	1580	1500	1550	1580	1530	1550	1570	1500	1550	1600
Receiver sensitivity	Pmin	dBm	-	-	-22	-	-	-22	-	-	-21	-	-	-22
Receiver overload	Pmax	dBm	-3	-	-	-3	-	-	-3	-	-	-3	-	-
Return loss	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Optical path penalty	-	-	-	-	-	-	-	-	-	-	-	-	-	-
LOS de-assert	LOSD	dBm	-	-	-23	-	-	-23	-	-	-22	-	-	-23
LOS assert	LOSA	dBm	-35	-	-	-35	-	-	-35	-	-	-35	-	-
LOS hysteresis	-	dB	0.5	-	-	0.5	-	-	0.5	-	-	0.5	-	-

Parameter	Symbol	Unit	1310nm DFB and PIN, 40km			1310nm DFB and PIN, 60km			1310nm DFB and PIN, 80km
Parameter	Symbol	Unit	Min.	Typical	Max.	Min.	Typical	Max.	Min.	Typical	Max.
9µm core diameter SMF	L	km	-	40	-	-	60	-	-	80	-
Data rate	-	Gbps	100	1.25	-	100	1.25	-	100	1.25	-
Transmitter
Center wavelength	λC	nm	1290	1310	1330	1290	1310	1330	1290	1310	1330
Spectral width (-20dB)	Δλ	nm	-	-	1	-	-	1	-	-	1
Side mode suppression ratio	SMSR	dB	30	-	-	30	-	-	30	-	-
Average output power	Pout	dBm	-3	-	2	0	-	+5	+1	-	+5
Extinction ratio	ER	dB	8.2	-	-	8.2	-	-	8.2	-	-
Rise/Fall time(20%～80%)	tr/tf	ns	-	-	0.26	-	-	0.26	-	-	0.26
Output optical eye	-	-	Compliant with IEEE 802.3 ah-2004			Compliant with IEEE 802.3 ah-2004			Compliant with IEEE 802.3 ah-2004
TX disable assert time	t_off	us	-	-	10	-	-	10	-	-	10
Pout@TX disable asserted	Pout	dBm	-	-	-45	-	-	-45	-	-	-45
Receiver
Center wavelength	λC	nm	1480	1550	1580	1480	1550	1580	1480	1550	1580
Receiver sensitivity	Pmin	dBm	-	-	-23	-	-	-24	-	-	-24
Receiver overload	Pmax	dBm	-3	-	-	-3	-	-	-3	-	-
Return loss	-	dB	12	-	-	12	-	-	12	-	-
Optical path penalty	-	-	-	-	1	-	-	1	-	-	1
LOS de-assert	LOSD	dBm	-	-	-24	-	-	-25	-	-	-25
LOS assert	LOSA	dBm	-35	-	-	-35	-	-	-35	-	-
LOS hysteresis	-	dB	0.5	-	-	0.5	-	-	0.5	-	-

Parameter	Symbol	Unit	1550nm FP and PIN, 550m			1550nm FP and PIN, 3km			1550nm DFB and PIN, 10km			1550nm DFB and PIN, 20km
Parameter	Symbol	Unit	Min.	Typical	Max.	Min.	Typical	Max.	Min.	Typical	Max.	Min.	Typical	Max.
50µm core diameter MMF(800Mhz*km)	L	m	-	-	1000	-	-	-	-	-	-	-	-	-
62.5 core diameter MMF(500Mhz*km)	L	m	-	-	550	-	-	-	-	-	-	-	-	-
9µm core diameter SMF	L	km	-	-	-	-	3	-	-	10	-	-	20	-
Data rate	-	Gbps	100	1.25	-	100	1.063/1.25	-	100	1.063/1.25	-	100	1.063/1.25	-
Transmitter
Center wavelength	λC	nm	1500	1550	1580	1480	1550	1580	1520	1550	1580	1530	1550	1570
Spectral width(-20dB)	Δλ	nm	-	-	4	-	-	4	-	-	1	-	-	1
Average output power	Pout	dBm	-9.5	-	-3	-14	-	-8	-9	-	-3	-8	-	-3
Extinction ratio	ER	dB	6	-	-	6	-	-	6	9	-	6	9	-
Rise/Fall time(20%～80%)	tr/tf	ns	-	-	0.26	-	-	0.26	-	-	0.26	-	-	0.26
Total jitter	TJ	ps	-	-	56.5	-	-	-	-	-	-	-	-	-
Output optical eye	-	-	Compatible with IEEE 802.3ah-2004			Compliant with IEEE 802.3 ah-2004			Compliant with IEEE 802.3 ah-2004			Compliant with IEEE 802.3 ah-2004
TX disable assert time	t_off	us	-	-	10	-	-	10	-	-	10	-	-	10
Pout@TX disable asserted	Pout	dBm	-	-	-45	-	-	-45	-	-	-45	-	-	-45
Receiver
Center wavelength	λC	nm	1260	1310	1360	1260	-	1600	1260	-	1360	1260	1310	1360
Receiver sensitivity	Pmin	dBm	-	-	-22	-	-	-22	-	-	-21	-	-	-22
Receiver overload	Pmax	dBm	-3	-	-	-3	-	-	-3	-	-	-3	-	-
Return loss	-	-	-	-	-	12	-	-	12	-	-	12	-	-
Optical path penalty	-	-	-	-	-	-	-	1	-	-	1	-	-	1
LOS de-assert	LOSD	dBm	-	-	-23	-	-	-23	-	-	-22	-	-	-23
LOS assert	LOSA	dBm	-35	-	-	-35	-	-	-35	-	-	-35	-	-
LOS hysteresis	-	dB	0.5	-	-	0.5	-	-	0.5	-	-	0.5	-	-

Parameter	Symbol	Unit	1550nm DFB and PIN, 40km			1550nm DFB and PIN, 60km			1550nm DFB and APD, 80km
Parameter	Symbol	Unit	Min.	Typical	Max.	Min.	Typical	Max.	Min.	Typical	Max.
9µm core diameter SMF	L	km	-	40	-	-	60	-	-	80	-
Data rate	-	Gbps	100	1.25	-	100	1.25	-	100	1.25	-
Transmitter
Center wavelength	λC	nm	1480	1550	1580	1480	1550	1580	1480	1550	1580
Spectral width (-20dB)	Δλ	nm	-	-	1	-	-	1	-	-	1
Side mode suppression ratio	SMSR	dB	30	-	-	30	-	-	30	-	-
Average output power	Pout	dBm	-5	-	0	-2	-	+3	0	-	+5
Extinction ratio	ER	dB	8.2	-	-	8.2	-	-	8.2	-	-
Rise/Fall time(20%～80%)	tr/tf	ns	-	-	0.26	-	-	0.26	-	-	0.26
Output optical eye	-	-	Compliant with IEEE 802.3 ah-2004			Compliant with IEEE 802.3 ah-2004			Compliant with IEEE 802.3 ah-2004
TX disable assert time	t_off	us	-	-	10	-	-	10	-	-	10
Pout@TX disable asserted	Pout	dBm	-	-	-45	-	-	-45	-	-	-45
Receiver
Center wavelength	λC	nm	1290	-	1330	1290	-	1330	1480	1550	1580
Receiver sensitivity	Pmin	dBm	-	-	-23	-	-	-24	-	-	-33
Receiver overload	Pmax	dBm	-3	-	-	-3	-	-	-8	-	-
Return loss	-	dB	12	-	-	12	-	-	12	-	-
Optical path penalty	-	-	-	-	1	-	-	1	-	-	1
LOS de-assert	LOSD	dBm	-	-	-24	-	-	-25	-	-	-34
LOS assert	LOSA	dBm	-35	-	-	-35	-	-	-45	-	-
LOS hysteresis	-	dB	0.5	-	-	0.5	-	-	0.5	-	-

FUNCTIONAL DESCRIPTION OF TRANSCEIVER

SFP TRANSCEIVER ELECTRICAL PAD LAYOUT

PIN FUNCTION DEFINITIONS

Pin	Name	Function	Plug Seq.	Notes
1	VeeT	Transmitter ground	1	5)
2	TX Fault	Transmitter fault indication	3	1)
3	TX Disable	Transmitter disable	3	2) Module disables on high or open
4	MOD-DEF2	Module definition 2	3	3) Data line for serial ID.
5	MOD-DEF1	Module definition 1	3	3) Clock line for serial ID.
6	MOD-DEF0	Module definition 0	3	3) Grounded within the module.
7	Rate Select	Not connect	3	Function not available
8	LOS	Loss of signal	3	4)
9	VeeR	Receiver ground	1	5)
10	VeeR	Receiver ground	1	5)
11	VeeR	Receiver ground	1	5)
12	RD-	Inv. received data out	3	6)
13	RD+	Received data out	3	7)
14	VeeR	Receiver ground	1	5)
15	VccR	Receiver power	2	7) 3.3V ± 5%
16	VccT	Transmitter power	2	7) 3.3V ± 5%
17	VeeT	Transmitter ground	1	5)
18	TD+	Transmit data In	3	8)
19	TD-	Inv. transmit data In	3	8)
20	VeeT	Transmitter ground	1	5)

Notes:
1) TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor on the host board. Pull up voltage between 2.0V and VccT/R+0.3V. When high, output indicates a laser fault of some kinds. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.

2) TX disable is an input that is used to shutdown the transmitter optical output. It is pulled up within the module with a 4.7K – 10 KΩ resistor. Its states are:
Low (0 – 0.8V): Transmitter on
(>0.8, < 2.0V): Undefined
High (2.0 – 3.465V): Transmitter Disabled
Open: Transmitter Disabled

3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10K resistor on the host board. The pull-up voltageshall be VccT or VccR .
Mod-Def 0 is grounded by the module to indicate that the module is present
Mod-Def 1 is the clock line of two wire serial interface for serial ID
Mod-Def 2 is the data line of two wire serial interface for serial ID

4) LOS is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor. Pull up voltage between 2.0V and VccT/R+0.3V. When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use).Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.

5) VeeR and VeeT may be internally connected within the SFP module.

6) RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the module and is thus not required on the host board. The voltage swing on these lines will be between 370 and 2000 Mv differential (185 –1000 Mv single ended) when properly terminated.

7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP connector pin. Maximum supply current is 300Ma. Recommended host board power supply filtering is shown below. Inductors with DC resistance of less than 1ohm should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than 30Ma greater than the steady state value.VccR and VccT may be internally connected within the SFP transceiver module.

8) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module.. The AC coupling is done inside the module and is thus not required on the host board. The inputs will accept differential swings of 500 – 2400 Mv (250 – 1200Mv single-ended), though it is recommended that values between 500 and 1200 Mv differential (250 – 600Mv single-ended) be used for best EMI performance.

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