China Optical Transceiver Module SFP+ LC-MM 850nm 300m Manufacturer and Supplier

Optical Transceiver Module SFP+ LC-MM 850nm 300m

Short Description:

ML-SFP+MX RoHS Compliant 10Gb/s SFP+ 850nm 300m Optical Transceiver Enhanced Small Form Factor Pluggable SFP+ transceivers are designed for use in 10-Gigabit Ethernet over Multi-Mode fiber. They are compliant with SFF-8431, SFF-8432 and IEEE 802.3ae 10GBASE-SR/SW. The transceiver designs are optimized for high performance and cost effective to supply customers the best solutions for Telecommunication and Datacom.

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Product Detail

Product Tags

Product Features

● Supports up to 11.3Gb/s bit rates
● Duplex LC connector
● Hot pluggable SFP+ footprint
● 850nm VCSEL transmitter, PIN photo-detector
● Up to 300m on 50/125um MMF(2000MHZ.KM)
● Low power consumption, < 1W
● Digital Diagnostic Monitor Interface
● Optical interface compliant to IEEE 802.3ae
● Electrical interface compliant to SFF-8431
● Operating case temperature:
Commerical:0~70°C Industrial:-40 to 85 °C

Applications

● 10G Base-SR/SW at 10.3125G
● 10G Fiber Channel
● Other optical links

Functional Diagram

Absolute Maximum Ratings

Parameter	Symbol	Min.	Max.	Unit	Note
Supply Voltage	Vcc	-0.5	4.0	V
Storage Temperature	TS	-40	85	°C
Relative Humidity	RH	0	85	%

Note: Stress in excess of the maximum absolute ratings can cause permanent damage to the transceiver.

General Operating Characteristics

Parameter	Symbol	Min.	Typ	Max.	Unit	Note
Data Rate	DR	9.953	10.3125	11.3	Gb/s
Supply Voltage	Vcc	3.13	3.3	3.47	V
Supply Current	Icc₅			300	mA
Operating Case Temp.	Tc	0		70	°C
Operating Case Temp.	TI	-40		85	°C

Electrical Characteristics (TOP(C) = 0 to 70 ℃, TOP(I) =-40 to 85 ℃, VCC = 3.13 to 3.47 V)

Parameter	Symbol	Min.	Typ	Max.	Unit	Note
Transmitter
Differential data input swing	VINPP	180		700	mVpp	1
Transmit Disable Voltage	VD	VCC-0.8		Vcc	V
Transmit Enable Voltage	VEN	Vee		Vee+0.8	V
Input differential impedance	Rin		100		Ω
Receiver
Differential data output swing	Vout,pp	300		850	mVpp	2
Output rise time and fall time	Tr, Tf	28			Ps	3
LOS asserted	VLOS_F	2		Vcc_HOST	V	4
LOS de-asserted	VLOS_N	Vee		Vee+0.8	V	4

Note:

1. Connected directly to TX data input pins. AC coupling from pins into laser driver IC.

2. Into 100Ω differential termination.

3. 20 – 80%. Measured with Module Compliance Test Board and OMA test pattern. Use of four 1’s and four 0’s sequence in the PRBS 9 is an acceptable alternative.

4. LOS is an open collector output. Should be pulled up with 4.7kΩ – 10kΩ on the host board. Normal operation is logic 0; loss of signal is logic 1.

Optical Characteristics (TOP(C) = 0 to 70 ℃, TOP(I) =-40 to 85 ℃,VCC = 3.13 to 3.47 V)

Parameter	Symbol	Min.	Typ	Max.	Unit	Note
Transmitter
Operating Wavelength	λ	810	850	880	nm
Ave. output power (Enabled)	PAVE	-6		0	dBm	1
Extinction Ratio	ER	3.5			dB
RMS spectral width	Δλ			0.85	nm
Rise/Fall time (20%~80%)	Tr/Tf			50	ps	2
Dispersion penalty	TDP			2	dB
Output Optical Eye	Compliant with IEEE 0802.3ae
Receiver
Operating Wavelength		840	850	860	nm
Receiver Sensitivity（ER=4.5）	PSEN1			-11.1	dBm	3
Overload	PAVE			0.5	dBm
LOS Assert	Pa	-30			dBm
LOS De-assert	Pd			-12	dBm
LOS Hysteresis	Pd-Pa	0.5			dB

Notes:

1. Measured at 10.3125b/s with PRBS 2^{31 – 1} NRZ test pattern.

2. 20%~80%

3. Under the ER worst case=4.5@ 10.3125 Gb/s with PRBS 2^{31 – 1} NRZ test pattern for BER < 1×10^-12

Pin Definitions And Functions

Pin	Symbol	Name/Description
1	VEET [1]	Transmitter Ground
2	Tx_FAULT [2]	Transmitter Fault
3	Tx_DIS [3]	Transmitter Disable. Laser output disabled on high or open
4	SDA [2]	2-wire Serial Interface Data Line
5	SCL [2]	2-wire Serial Interface Clock Line
6	MOD_ABS [4]	Module Absent. Grounded within the module
7	RS0 [5]	Rate Select 0
8	RX_LOS [2]	Loss of Signal indication. Logic 0 indicates normal operation
9	RS1 [5]	Rate Select 1
10	VEER [1]	Receiver Ground
11	VEER [1]	Receiver Ground
12	RD-	Receiver Inverted DATA out. AC Coupled
13	RD+	Receiver DATA out. AC Coupled
14	VEER [1]	Receiver Ground
15	VCCR	Receiver Power Supply
16	VCCT	Transmitter Power Supply
17	VEET [1]	Transmitter Ground
18	TD+	Transmitter DATA in. AC Coupled
19	TD-	Transmitter Inverted DATA in. AC Coupled
20	VEET [1]	Transmitter Ground

Notes:

1.Module circuit ground is isolated from module chassis ground within the module.

2.should be pulled up with 4.7k – 10k ohms on host board to a voltage between 3.15Vand 3.6V.

3.Tx_Disable is an input contact with a 4.7 kΩ to 10 kΩ pullup to VccT inside the module.

4.Mod_ABS is connected to VeeT or VeeR in the SFP+ module. The host may pull this contact up to Vcc_Host with a resistor in the range 4.7 kΩ to10 kΩ.Mod_ABS is asserted “High” when the SFP+ module is psically absent from a host slot.

5. RS0 and RS1 are module inputs and are pulled low to VeeT with > 30 kΩ resistors in the module.

Serial Interface for ID and Digital Diagnostic Monitor

The SFP+MX transceiver support the 2-wire serial communication protocol as defined in the SFP+ MSA. The standard SFP+ serial ID provides access to identification information that describes the transceiver’s capabilities, standard interfaces, manufacturer, and other information. Additionally, This SFP+ transceivers provide an enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when particular operating parameters are outside of a factory set normal range.

The SFP MSA defines a 256-byte memory map in EEPROM that is accessible over a 2-wire serial interface at the 8 bit address 1010000X(A0h), so the originally monitoring interface makes use of the 8 bit address(A2h), so the originally defined serial ID memory map remains unchanged. The structure of the memory map is shown in Table1.

Table 1. Digital Diagnostic Memory Map (Specific Data Field Descriptions)

Digital Diagnostic Specifications

The SFP+MX transceivers can be used in host systems that require either internally or externally calibrated digital diagnostics.

Parameter	Symbol	Units	Min.	Max.	Accuracy	Note
Transceiver temperature	DTemp-E	ºC	-45	+90	±5ºC	1
Transceiver supply voltage	DVoltage	V	2.8	4.0	±3%
Transmitter bias current	DBias	mA	0	80	±10%	2
Transmitter output power	DTx-Power	dBm	-7	+1	±2dB
Receiver average input power	DRx-Power	dBm	-13	0	±2dB

Notes:

1. Internally measured

2. The accuracy of the Tx bias current is 10% of the actual current from the laser driver to the laser

Typical Interface Circuit

Recommended Power Supply Filter

Note:

Inductors with DC resistance of less than 1Ω 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 30 mA greater than the steady state value