Generic Compatible 8.5G SR SFP+ 850nm 300m DOM Duplex LC MMF Optical Transceiver Module

SPECIFICATIONS
Product Model	SFP+8.5-85-03(SR)-LCD	Manufacturer Brand	PHILISUN
Package Type	SFP+	Optical Connector	Duplex LC
Max Data Rate	8.5Gbps	Channel Data Rate	8.5Gbps
Effective transmission distance(OM3)	300m	Effective transmission distance(OM4)	300m
Wavelength	850nm	Operating Voltage	3.3V
Fiber Type	MMF	Core Size	50/125µm
Transmitter Type	VCSEL	Receiver Type	IDP
TX Power	-6~-1dBm	Receiver Sensitivity	-11.1dBm
Digital Diagnostic Monitoring(DDM)	YES	Receiver Overload	0dBm
Power Consumption	<1.0W	Protocols	MSA SFP+ SFF-8431
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+ 8.5G 850nm 300m SR LC DX single-mode transceiver is a compact, pluggable module designed for serial optical data communication applications such as X1/X2/X4/X8 Fiber Channel. Equipped with a 20-pin SFP+ connector, it supports hot-plugging capabilities. Digital diagnostics are accessible via an I2C interface. This module is optimized for multimode fiber, operating at a nominal wavelength of 850nm. Its transmitter utilizes a Vertical Cavity Surface Emitting Laser (VCSEL), compliant with Class 1 laser safety standards per IEC 60825. The receiver section features an integrated GaAs detector preamplifier (IDP) within an optical header, along with a limiting post-amplifier IC for enhanced signal processing.

TRANSCEIVER SERIES PRODUCTS

PRODUCTION & TESTING EQUIPMENT

PERFORMANCE PARAMETER

Absolute Maximum Ratings
Parameter	Symbol	Min.	Max.	Unit
Storage temperature	TS	-40	+85	°C
Supply voltage	VCC	-0.5	3.6	V
Input voltage	Vin	-0.5	Vcc	V
Output current	Io	–	50	mA

Recommended Operating Environment
Parameter	Symbol		Min.	Typical	Max.	Unit
Operating case temperature	Tc	SFP+8.5-85-03(SR)-LCD	0	–	70	°C
			-40	–	85
Power supply voltage	VCC		3.15	3.3	3.45	V
Power supply current	ICC		–	–	300	mA
Surge current	ISurge		–	–	30	mA
Baud rate	8XFC		0.614	–	8.5	Gbps

Performance Specifications – Electrical
Parameter	Symbol	Min.	Typ.	Max	Unit	Notes
Transmitter
CML Inputs(Differential)	Vin	150	–	1200	mVpp	AC coupled inputs
Input Impedance (Differential)	Zin	85	100	115	ohms	Rin > 100 kohms @ DC
Tx_DISABLE Input Voltage – High	–	2	–	Vcc+0.3	V	–
Tx_DISABLE Input Voltage – Low	–	0	–	0.8	V	–
Tx_FAULT Output Voltage – High	–	2	–	Vcc+0.3	V	Io = 400µA; Host Vcc
Tx_FAULT Output Voltage – Low	–	0	–	0.8	V	Io = -4.0mA
Receiver
CML Outputs (Differential)	Vout	350	–	700	mVpp	AC coupled outputs
Output Impedance (Differential)	Zout	85	100	115	ohms	–
Rx_LOS Output Voltage – High	–	2	–	Vcc+0.3	V	lo = 400µA; Host Vcc
Rx_LOS Output Voltage – Low	–	0	–	0.8	V	lo = -4.0mA
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	Min.	Typical	Max.	Unit
50 / 125 um MMF		–	–	300	–	m
Data rate		–	0.614	–	8.5	Gbps
Transmitter
Centre wavelength		λC	840	850	860	nm
Spectral width (RMS)		Δλ	–	–	0.45	nm
Average output power		Pout	-6	–	-1	dBm
Extinction ratio		ER	3	5	–	dB
Output optical eye			IEEE 802.3-2005 Compliant
Transmitter dispersion penalty		TDP	–	–	3.9	dB
Input differential impedance		ZIN	90	100	110	Q
TX Disable	Disable	–	2	–	Vcc+0.3	V
TX Disable	Enable	–	0	–	0.8	V
TX_Fault	Fault	–	2	–	VCC+0.3	V
TX_Fault	Normal	–	0	–	0.8	V
TX_Disable assert time		t_off	–	–	10	us
TX_DISABLE negate time		t_on	–	–	1	ms
TX_BISABLE time to start reset		t_reset	10	–	–	us
Time to initialize, include reset of TX_FAULT		t_init	–	–	300	ms
TX_FAULT from fault to assertion		t_fault	–	–	100	us
Total jitter		TJ	–	–	0.28	UI(p-p)
Data dependant jitter		DDJ	–	–	0.1	UI(p-p)
Uncorrelated jitter		UJ	–	–	0.023	RMS
Receiver
Centre wavelength		λC	840	850	860	nm
Receiver sensitivity		Pmin	–	–	-11.1	dBm
Output differential impedance		RIN	90	100	110	Q
Receiver overload2		Pmax	0	–	–	dBm
Optical return loss		ORL	–	–	-12	dB
LOS de-assert		LOSD	–	–	-12.5	dBm
LOS assert		LOSA	-25	–	–	dBm
LOS hysteresis		–	0.5	–	–	dB
LOS	High	–	2	–	VCC+0.3	V
LOS	Low	–	0	–	0.8	V
Note 2: Measured with a PRBS 231 -1 test pattern @ 8.5Gbps, BER≤10-12

SFP+ TRANSCEIVER ELECTRICAL PAD LAYOUT

PIN FUNCTION DEFINITIONS

Pin	Name	Function	Plug Seq.	Notes
1	VeeT	Transmitter ground	1
2	TX Fault	Transmitter fault indication	3	Note 1
3	TX Disable	Transmitter disable	3	Note 2, Module disables on high or open
4	SDA	Module definition 2	3	Data line for serial ID.
5	SCL	Module definition 1	3	Clock line for serial ID.
6	MOD-ABS	Module definition 0	3	Note 3
7	RS0	RX rate select (LVTTL).	3	No function implement..
8	LOS	Loss of signal	3	Note 4
9	RS1	TX rate select (LVTTL).	1	No function implement..
10	VeeR	Receiver ground	1	Note 5
11	VeeR	Receiver ground	1	Note 5
12	RD-	Inv. Received data out	3	Note 6
13	RD+	Received data out	3	Note 6
14	VeeR	Receiver ground	1	Note 5
15	VccR	Receiver power	2	3.3V ± 5%, Note 7
16	VccT	Transmitter power	2	3.3V ± 5%, Note 7
17	VeeT	Transmitter ground	1	Note 5
18	TD+	Transmit data in	3	Note 8
19	TD-	Inv. Transmit data in	3	Note 8
20	VeeT	Transmitter ground	1	Note 5
Notes: 1) TX Fault is an open collector/drain output, which should be pulled up with a 4.7KΩ – 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 kind. 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 shut down the transmitter optical output. It is pulled up within the module with a 4.7KΩ~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) Module Absent, connected to VeeT or VeeR in the module. 4) LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7KΩ –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 700 mV differential (185 –350 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. Inductors with DC resistance of less than 1 ohm 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 150 – 1200 mV (75 – 600mV single-ended), though it is recommended that values between 150 and 1200 mV differential (75 – 600mV single-ended) be used for best EMI performance.