3COM DWDM-SFP10g-39.76 Compatible 10g DWDM SFP+ 100GHz 1539.76nm 40km Dom LC SMF Transceiver Module

• Customization: Available
• Type: Both Single Mode and Multi Mode
• Transport Package: Blister Pack
• Model NO.: LADX-DxxS-ZR
• Trademark: Linksall
• Origin: China
• HS Code: 8517706000
• Production Capacity: 100, 000 Per Year

Product Description

10Gb/s DWDM SFP+ Transceiver 40KM
LADX-DxxS-ZR

Product Features

• Supports 9.95 to 11.3Gb/s bit rates
• Hot-Pluggable
• Duplex LC receptacle
• 100GHz ITU Grid, C Band
• DWDM EML transmitter, APD photo-detector
• SMF links up to 80km
• 2-wire interface for management specifications compliant with SFF 8472 digital diagnostic monitoring interface
• Power Supply :+3.3V
• Power consumption<1.5W
• Temperature Range: 0~ +70°C
• RoHS compliant

Applications

• 10Gbps DWDM Optical systems
• 10G SONET/SDH, OTU2/2e and 10G FC
• LTE systems
• Other Optical links

Standard

• Compliant to SFF-8431
• RoHS Compliant.

Description
The SFP+ transceivers are high performance, cost effective modules supporting data rate of 10Gbps and 80km transmission distance with SMF.

The transceiver consists of three sections: a Cooled EML laser transmitter, an APD photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.

The transceivers are compatible with SFP Multi-Source Agreement and SFF-8472 digital diagnostics functions.

Absolute Maximum Ratings  

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Storage Temperature	Ts	-40	-	+85	ºC
Relative Humidity	RH	5	-	95	%
Power Supply Voltage	VCC	-0.3	-	4	V
Signal Input Voltage		Vcc-0.3	-	Vcc+0.3	V

Recommended Operating Conditions

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Case Operating Temperature	TOP	0	-	+70	ºC	Without air flow
Power Supply Voltage	VCC	3.14	3.3	3.47	V
Power Supply Current	ICC	-		450	mA
Data Rate	BR		10.3125	11.3	Gbps
Transmission Distance	TD		-	80	km
Coupled fiber	Single mode fiber					9/125um SMF

Electrical Characteristics

Parameter	Symbol	Min.	Typical	Max.	Unit	Note
Supply Voltage	Vcc	3.135		3.465	V
Supply Current	Icc			450	mA
Power Consumption	P			1.5	W
Transmitter
Input differential impedance	Rin		100		Ω	1
Tx Input Single Ended DC Voltage Tolerance (Ref VeeT)	V	-0.3		4	V
Differential input voltage swing	Vin,pp	180		700	mV	2
Transmit Disable Voltage	VD	2		Vcc	V	3
Transmit Enable Voltage	VEN	Vee		Vee+0.8	V
Receiver
Single Ended Output Voltage Tolerance	V	-0.3		4	V
Rx Output Diff Voltage	Vo	300		850	mV
Rx Output Rise and Fall Time	Tr/Tf	30			ps	4
LOS Fault	VLOS fault	2		VccHOST	V	5
LOS Normal	VLOS norm	Vee		Vee+0.8	V	5

Notes:

1. Connected directly to TX data input pins. AC coupling from pins into laser driver IC.
2. Per SFF-8431 Rev 3.0
3. Into 100 ohms differential termination.
4. 20%~80%
5. LOS is an open collector output. Should be pulled up with 4.7k - 10kΩ on the host board. Normal operation is logic 0; loss of signal is logic 1. Maximum pull-up voltage is 5.5V.

Optical Characteristics

Parameter	Symbol	Min.	Typical	Max.	Unit	Note
Transmitter
Optical Wavelength-End Of Life	λ	X-100	X	X+100	pm
Optical Wavelength-Beginning Of Life	λ	X-25	X	X+25	pm
Average Optical Power	Pavg	0		+5	dBm	1
Laser Off Power	Poff			-30	dBm
Extinction Ratio	ER	8.2			dB
Transmitter Dispersion Penalty	TDP			3.0	dB	2
Relative Intensity Noise	Rin			-128	dB/Hz	3
Optical Return Loss Tolerance		20			dB
Receiver
Center Wavelength	λr	1480		1565	nm
Receiver Sensitivity (OMA)	Sen			-23	dBm	4
Stressed Sensitivity (OMA)	SenST			-21	dBm	4
Los Assert	LOSA	-40		-	dBm
Los Dessert	LOSD			-24	dBm
Los Hysteresis	LOSH	0.5			dB
Overload	Sat	-7			dBm	5
Receiver Reflectance	Rrx			-12	dB

Notes:

1. Average power figures are informative only, per IEEE802.3ae.
2. TWDP figure requires the host board to be SFF-8431compliant. TWDP is calculated using the Matlab code provided in clause 68.6.6.2 of IEEE802.3ae.
3. 12dB reflection.
4. Conditions of stressed receiver tests per IEEE802.3ae. CSRS testing requires the host board to be SFF-8431 compliant.
5. Receiver overload specified in OMA and under the worst comprehensive stressed condition.

Timing Characteristics

Parameter	Symbol	Min.	Typical	Max.	Unit
TX_Disable Assert Time	t_off			10	us
TX_Disable Negate Time	t_on			1	ms
Time to Initialize Include Reset of TX_FAULT	t_int			300	ms
TX_FAULT from Fault to Assertion	t_fault			100	us
TX_Disable Time to Start Reset	t_reset	10			us
Receiver Loss of Signal Assert Time	TA,RX_LOS			100	us
Receiver Loss of Signal Deassert Time	Td,RX_LOS			100	us
Rate-Select change Time	t_ratesel			10	us
Serial ID Clock Time	t_serial-clock			100	kHz

Pin Assignment

Diagram of Host Board Connector Block Pin Numbers and Name

Pin Function Definitions

0	Symbol	Name/Description	Ref.
1	VEET	Transmitter Ground  (Common with Receiver Ground)	1
2	TFAULT	Transmitter Fault.	2
3	TDIS	Transmitter Disable. Laser output disabled on high or open.	3
4	SDA	2-wire Serial Interface Data Line	4
5	SCL	2-wire Serial Interface Clock Line	4
6	MOD_ABS	Module Absent. Grounded within the module	4
7	RS0	RS0 for Rate Select:  Open or Low = Module supports 1.25 Gb/s High = Module supports 9.95 Gb/s to 10.3125 Gb/s	5
8	LOS	Loss of Signal indication.  Logic 0 indicates normal operation.	6
9	RS1	No connection required	1
10	VEER	Receiver Ground  (Common with Transmitter Ground)	1
11	VEER	Receiver Ground  (Common with Transmitter Ground)	1
12	RD-	Receiver Inverted DATA out.  AC Coupled
13	RD+	Receiver Non-inverted DATA out.  AC Coupled
14	VEER	Receiver Ground  (Common with Transmitter Ground)	1
15	VCCR	Receiver Power Supply
16	VCCT	Transmitter Power Supply
17	VEET	Transmitter Ground  (Common with Receiver Ground)	1
18	TD+	Transmitter Non-Inverted DATA in. AC Coupled.
19	TD-	Transmitter Inverted DATA in.  AC Coupled.
20	VEET	Transmitter Ground  (Common with Receiver Ground)	1

Notes:
1. Circuit ground is internally isolated from chassis ground.
2. T_FAULT is an open collector/drain output, which should be pulled up with a 4.7k - 10k Ohms resistor on the host board if intended for use. Pull up voltage should be between 2.0V to Vcc + 0.3V. A high output indicates a transmitter fault caused by either the TX bias current or the TX output power exceeding the preset alarm thresholds.  A low output indicates normal operation. In the low state, the output is pulled to <0.8V.
3. Laser output disabled on T_DIS >2.0V or open, enabled on T_DIS <0.8V.
4. Should be pulled up with 4.7kΩ- 10kΩ host board to a voltage between 2.0V and 3.6V. MOD_ABS pulls line low to indicate module is plugged in.
5. Transceiver data rate selected through the 2-wire bus in accordance with SFF-8472 Rev. 10.5.  Soft RS0 is set at Bit3, Byte 110, Address A2h.  Soft RS0 default state on power up is '0' LOW, and the state is reset following a power cycle. Writing '1' HIGH selects max data rate operation.  Transceiver data rate is the logic OR of the input state of the RS0 pin and soft RS0 bit.  Thus, if either the RS0 pin OR the soft RS0 bit is HIGH then the selected data rate will be 9.95 and 10.3 Gb/s. 
6. Loss Of Signal is LVTTL. It should be pulled up with 4.7kΩ - 10kΩ on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
 
EEPROM Information and Management
The SFP+ transceivers 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, The SFP+ transceivers provide a unique 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).The digital diagnostic monitoring interface makes use of the 8 bit address 1010001X (A2h), so the originally defined serial ID memory map remains unchanged.

The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through a 2-wire serial interface. When the serial protocol is activated, the serial clock signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks data into the SFP transceiver into those segments of the E2PROM that are not write-protected. The negative edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def 2) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially.
Table 1. Digital Diagnostic Memory Map (Specific Data Field Descriptions)Table 2 - EEPROM Serial ID Memory Contents (A0h)
 

Data Address	Length (Byte)	Name of Length	Description and Contents
Base ID Fields
0	1	Identifier	Type of Serial transceiver (03h=SFP)
1	1	Reserved	Extended identifier of type serial transceiver (04h)
2	1	Connector	Code of optical connector type (07=LC)
3-10	8	Transceiver	10G Base-XX
11	1	Encoding	64B/66B
12	1	BR, Nominal	Nominal baud rate, unit of 100Mbps
13-14	2	Reserved	(0000h)
15	1	Length(9um)	Link length supported for 9/125um fiber, units of 100m
16	1	Length(50um)	Link length supported for 50/125um fiber, units of 10m
17	1	Length(62.5um)	Link length supported for 62.5/125um fiber, units of 10m
18	1	Length(Copper)	Link length supported for copper, units of meters
19	1	Reserved
20-35	16	Vendor Name	SFP+ vendor name
36	1	Reserved
37-39	3	Vendor OUI	SFP+ transceiver vendor OUI ID
40-55	16	Vendor PN	Part Number
56-59	4	Vendor rev	Revision level for part number
60-62	3	Reserved
63	1	CCID	Least significant byte of sum of data in address 0-62
Extended ID Fields
64-65	2	Option	Indicates which optical SFP signals are implemented(001Ah = LOS, TX_FAULT, TX_DISABLE all supported)
66	1	BR, max	Upper bit rate margin, units of %
67	1	BR, min	Lower bit rate margin, units of %
68-83	16	Vendor SN	Serial number (ASCII)
84-91	8	Date code	Manufacturing date code
92-94	3	Reserved
95	1	CCEX	Check code for the extended ID Fields (addresses 64 to 94)
Vendor Specific ID Fields
96-127	32	Readable	specific date, read only
128-255	128	Reserved	Reserved for SFF-8079

Digital Diagnostic Monitor Characteristics

Data Address	Parameter	Accuracy	Unit
96-97	Transceiver Internal Temperature	±3.0	°C
98-99	VCC3 Internal Supply Voltage	±3.0	%
100-101	Laser Bias Current	±10	%
102-103	Tx Output Power	±3.0	dB
104-105	Rx Input Power	±3.0	dB

Regulatory Compliance
The SFP+ complies with international Electromagnetic Compatibility (EMC) and international safety requirements and standards (see details in Table following).
Regulatory Compliance

Feature	Reference	Performance
Electrostatic discharge(ESD)	IEC/EN 61000-4-2	Compatible with standards
Electromagnetic Interference (EMI)	FCC Part 15 Class B EN 55022 Class B (CISPR 22A)	Compatible with standards
Laser Eye Safety	FDA 21CFR 1040.10, 1040.11 IEC/EN 60825-1,2	Class 1 laser product
Component Recognition	IEC/EN 60950 ,UL	Compatible with standards
ROHS	2002/95/EC	Compatible with standards
EMC	EN61000-3	Compatible with standards