1.25G Bi-directional Module Fiber Optical 3Km

Product Description

iB-3506-03BD

SFP BIDI 1.25G 1310/1550nm(1550/1310nm)nm 3KM Transceiver

Features

· Up to 1.25Gb/s data links

· FP laser transmitter for iSF-BL3512-20D

· DFB laser transmitter for iSF-BL5312-20D

· PIN photo-detector

· Up to 3km on 9/125µm SMF

· Hot-pluggable SFP footprint

· BIDI LC/UPC type pluggable optical interface

· Low power dissipation

· Metal enclosure, for lower EMI

· RoHS compliant and lead-free

· Single +3.3V power supply

· Support Digital Diagnostic Monitoring interface

· Compliant with SFF-8472

· Case operating temperature

Commercial: 0°C to +70°C

Extended: -10°C to +80°C

Industrial: -40°C to +85°C

Applications

· Switch to Switch Interface

· Gigabit Ethernet

· Switched Backplane Applications

· Router/Server Interface

· Other Optical Links

Description

Xmethod Network Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA), The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the 1310nm FP laser (the 1550nm DFB laser) and the PIN photo-detector. The module data link up to 3KM in 9/125um single mode fiber.

The optical output can be disabled by a TTL logic high-level input of Tx Disable, and the system also can disable the module via I2C. Tx Fault is provided to indicate that degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver or the link status with partner. The system can also get the LOS (or Link)/Disable/Fault information via I2C register access.

Absolute Maximum Ratings

Parameter	Symbol	Min	Typ	Max	Unit	Note
Storage Temperature	Ts	-40		85	ºC
Storage Ambient Humidity	HA	5		95	%
Power Supply Voltage	VCC	-0.5		4	V
Signal Input Voltage		-0.3		Vcc+0.3	V
Receiver Damage Threshold		5			dBm

Recommended Operating Conditions

Parameter	Symbol	Min	Typ	Max	Unit	Note
Case Operating Temperature	Tcase	0		70	ºC	commercial
		-10		80		extended
		-40		85		industrial
Ambient Humidity	HA	5		70	%	Non-condensing
Power Supply Voltage	VCC	3.13	3.3	3.47	V
Power Supply Current	ICC			280	mA
Power Supply Noise Rejection				100	mVp-p	100Hz to 1MHz
Data Rate			1.25/1.25		Gbps	TX Rate/RX Rate
Transmission Distance				3	KM
Coupled Fiber	Single mode fiber					9/125um SMF

Electrical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	Note
Transmitter
Total Supply Current	ICC			A	mA	Note (1)
Transmitter Disable Input-High	VDISH	2		Vcc+0.3	V
Transmitter Disable Input-Low	VDISL	0		0.8	V
Transmitter Fault Input-High	VDISL	2		Vcc+0.3	V
Transmitter Fault Input-Low	VTxFH	0		0.8	V
Receiver
Total Supply Current	ICC			B	mA	Note (1)
LOSS Output Voltage-High	VLOSH	2		Vcc+0.3	V	LVTTL
LOSS Output Voltage-Low	VLOSL	0		0.8	V

Notes:

A (TX) + B (RX) = 280mA (Not include termination circuit)

Optical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	Note
Transmitter
Average Output Power	POUT	-9		-3	dBm
Extinction Ratio	ER	9			dB
Center Wavelength	λC	1290	1310	1330	nm
		1530	1550	1570
Spectrum Width (RMS)	σ			3.5	nm	FP Laser (TX:1310nm)
Side Mode Suppression Ratio	SMSR	30			dB	DFB Laser (TX:1550nm)
Spectrum Bandwidth(-20dB)	σ			1	nm
Transmitter OFF Output Power	POff			-45	dBm
Differential Line Input Impedance	RIN	90	100	110	Ohm
Jitter P-P	tJ			0.1	UI	Note (1)
Output Eye Mask	Compliant with IEEE802.3 z (class 1 laser safety)					Note (2)
Receiver
Input Optical Wavelength	λIN	1530	1550	1570	nm
		1290	1310	1330
Receiver Sensitivity	PIN			-22	dBm	Note (3)
Input Saturation Power (Overload)	PSAT	-3			dBm
Los Of Signal Assert	PA	-35			dBm
Los Of Signal De-assert	PD			-21	dBm	Note (4)
LOS Hysteresis	PA-PD	0.5	2	6	dB

Notes:

· Measure at 2^7-1 NRZ PRBS pattern

· Transmitter eye mask definition

· Measured with Light source 1550nm(1310nm), ER=9dB; BER =<10^-12 PRBS=2^7-1 NRZ.

· When LOS de-asserted, the RX data+/- output is signal output.

Pin Descriptions

Pin	Symbol	Name/Description	Note
1	VEET	Transmitter Ground (Common with Receiver Ground)	1
2	TFAULT	Transmitter Fault.
3	TDIS	Transmitter Disable. Laser output disabled on high or open.	2
4	MOD_DEF(2)	Module Definition 2. Data line for Serial ID.	3
5	MOD_DEF(1)	Module Definition 1. Clock line for Serial ID.	3
6	MOD_DEF(0)	Module Definition 0. Grounded within the module.	3
7	Rate Select	No connection required	4
8	LOS	Loss of Signal indication. Logic 0 indicates normal operation.	5
9	VEER	Receiver Ground (Common with Transmitter Ground)	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:

· Circuit ground is internally isolated from chassis ground.

· Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.

· Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V.MOD_DEF(0) pulls line low to indicate module is plugged in.

· This is an optional input used to control the receiver bandwidth for compatibility with multiple data rates (most likely Fiber Channel 1x and 2x Rates). If implemented, the input will be internally pulled down with > 30kΩ resistor. The input states are:

Low (0 – 0.8V): Reduced Bandwidth

(>0.8V, < 2.0V): Undefined

High (2.0 – 3.465V): Full Bandwidth

Open: Reduced Bandwidth

· LOS is open collector output. Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.

Pin out of Connector Block on Host Board

Xmethod NetworK iB-3506-03BD transceivers support the 2-wire serial communication protocol as defined in the SFP MSA. It is very closely related to the E2PROM defined in the GBIC standard, with the same electrical specifications.

The standard SFP serial ID provides access to identification information that describes the transceiver’s capabilities, standard interfaces, manufacturer, and other information.

Additionally, Xmethod Network SFP transceivers provide an 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 E2PROM 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 interface is identical to, and is thus fully backward compatible with both the GBIC Specification and the SFP Multi Source Agreement.

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.

Digital diagnostics for the iB-3506-03BD are Internally calibrated by default.

Outline Specifications

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

Ordering information

Part Number	Product Description
iB-3506-03BD	1310/1550nm(1550/1310nm) , FP, 1.25Gb/s, 3KM, DDM

Revision History

Revision	Notes	Authors	Checked	Approval	Date
Rev A0	New release	Granger.Leung			2014.11.11

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