Generic Compatible 1000BASE-ZX/EZX SFP 1550nm 40/80/100/120/160km DOM Duplex LC SMF Optical Transceiver Module

SPECIFICATIONS
Product Model	SFP-1.25-15-40/80/100/120/160-LCD	Manufacturer Brand	PHILISUN
Package Type	SFP	Optical Connector	Duplex LC
Max Data Rate	up to 1.25Gbps	Channel Data Rate	-
Effective Transmission Distance	40/60/80/100/120/160KM
Wavelength	1550nm	Operating Voltage	3.3V
Fiber Type	SMF	Core Size	9/125µm
Transmitter Type	DFB	Receiver Type	IDP
TX Power	40KM -5~0dbm 60KM -2~3dbm 80/100/120KM 0~5dbm 160KM 3~7dbm	Receiver Sensitivity	40/60/80KM -24dbm 100KM -28dbm 120KM -32dbm 160KM -37dbm
Digital Diagnostic Monitoring(DDM)	YES	Receiver Overload	40/60/80/100KM' -3dbm 120/160KM' -10dbm
Power Consumption	<1W	Protocols	SFP MSA SFF-8472
Operating temperature(Commercial)	0℃~+70℃	Storage Temperature(Commercial)	-40℃~+85℃
Operating temperature(Industrial)	-40℃~+85℃	Storage Temperature(Industrial)	-40℃~+85℃

PRODUCT PRESENTATION

The PHILISUN SFP 1.25G 1550nm 40/80/100/120/160km LC DX Transceiver is a compact single-mode module designed for high-speed serial optical data communication, supporting extended transmission distances of 40/80/100/120/160km; this small form-factor pluggable (SFP) module is compatible with Gigabit Ethernet 1000BASE-ZX and Fiber Channel 1x SM-LC-L FC-PI standards, featuring a 20-pin connector enabling hot-plug capability for seamless integration and maintenance. Optimized for single-mode fiber operation at 1550nm wavelength, its transmitter integrates a high-performance multiple quantum well (MQW) 1550nm DFB laser compliant with IEC-60825 Class 1 laser safety standards, while the receiver incorporates an advanced optical detection system with integrated InGaAs detector preamplifier (IDP) mounted in an optical header and precision limiting post-amplifier IC to ensure reliable signal reception and processing; the entire series adheres to the SFF-8472 SFP Multi-Source Agreement (MSA), guaranteeing industry-standard compatibility and interoperability.

TRANSCEIVER SERIES PRODUCTS

PRODUCTION & TESTING EQUIPMENT

PERFORMANCE PARAMETER

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
Operating case temperature		Tc	SFP-1.25-15-40/80/100/120/160-LCD	0	–	+70	°C
				-40	–	+85
Power supply voltage		Vcc		3.15	3.3	3.45	V
Power supply current		Icc		–	–	300	mA
Date rate	GBE	–		–	1.25	–	Gbps
	FC			–	1.063	–

Performance Specifications – Electrical
Parameter		Symbol	Min.	Typ.	Max.	Unit	Notes
Transmitter
LVPECL inputs(Differential)		Vin	500	–	2400	mVpp	AC coupled inputs
Input impedance (Differential)		Zin	85	100	115	ohm	Rin > 100 kohm @ DC
TX_disable	Disable	–	2	–	Vcc	V	–
TX_disable	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 ( 2:0 )		VoH	2.5	–	–	V	With serial ID
MOD_DEF ( 2:0 )		VoL	0	–	0.5	V	With serial ID

Optical and Electrical Characteristics

Parameter

Symbol

Unit

1550nm DFB and PIN, 40km

1550nm DFB and PIN, 60km

1550nm DFB and PIN, 80km

Min.

Typical

Max.

Min.

Typical

Max.

Min.

Typical

Max.

9µm core diameter SMF

–

Data rate

–

Gbps

–

1.063/1.25

–

1.063/1.25

–

1.063/1.25

–

Transmitter

Center wavelength

λC

1500

1550

1580

1500

1550

1580

1500

1550

1580

Spectral width (-20dB)

Δλ

–

Side mode suppression ratio

SMSR

–

Average output power

Pout

dBm

-5

–

-2

–

Extinction ratio

–

Rise/Fall time(20%～80%)

tr/tf

–

0.26

–

0.26

–

0.26

Total jitter

–

0.43

–

0.43

–

0.43

Output optical eye

Compliant with IEEE 802.3ah-2004

TX disable assert time

t_off

–

Pout@TX disable asserted

Pout

dBm

–

-45

–

-45

–

-45

Receiver

Center wavelength

1260

–

1600

1260

–

1600

1260

–

1600

Receiver sensitivity

Pmin

dBm

–

-24

–

-24

–

-24

Receiver overload

Pmax

dBm

-3

–

-3

–

-3

–

Return loss

–

Optical path penalty

–

LOS de-assert

LOSD

dBm

–

-25

–

-25

–

-25

LOS assert

LOSA

dBm

-35

–

-35

–

-35

–

LOS hysteresis

–

0.5

–

0.5

–

0.5

–

Optical and Electrical Characteristics

Parameter

Symbol

Unit

1550nm DFB and PIN, 100km

1550nm DFB and APD, 120km

1550nm DFB and APD, 160km

Min.

Typical

Max.

Min.

Typical

Max.

Min.

Typical

Max.

9µm core diameter SMF

–

100

–

120

–

160

–

Data rate

–

Gbps

–

1.063/1.25

–

1.063/1.25

–

1.063/1.25

–

Transmitter

Center wavelength

λC

1500

1550

1580

1500

1550

1580

1500

1550

1580

Spectral width (-20dB)

Δλ

–

Side mode suppression ratio

SMSR

–

Average output power

Pout

dBm

–

Extinction ratio

–

Rise/Fall time(20%～80%)

tr/tf

–

0.26

–

0.26

–

0.26

Total jitter

–

0.43

–

0.43

–

0.43

Output optical eye

Compliant with IEEE 802.3ah-2004

TX disable assert time

t_off

–

Pout@TX disable asserted

Pout

dBm

–

-45

–

-45

–

-45

Receiver

Center wavelength

1260

–

1600

1260

–

1600

1260

–

1600

Receiver sensitivity

Pmin

dBm

–

-28

–

-32

–

-37

Receiver overload

Pmax

dBm

-3

–

-10

–

-10

–

Return loss

–

Optical path penalty

–

LOS de-assert

LOSD

dBm

–

-29

–

-33

–

-38

LOS assert

LOSA

dBm

-42

–

-45

–

-45

–

LOS hysteresis

–

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	SDA	3	3) 2 wire serial ID interface.
5	MOD-DEF1	SCL	3	3) 2 wire serial ID interface.
6	MOD-DEF0	MOD_ABS	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. 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.