1.25Gb/s SFP CWDM 100km

This transceiver is a product of the combination of CWDM technology and high-performance optoelectronic devices. It provides a very effective solution for solving ultra-long-distance, large-capacity, and low-cost fiber optic network connections.

Specification

Resources

Product Features

Hot-Pluggable

Duplex LC connector

Single +3.3V Power Supply

Up to 1.25Gb/s Data Links

CWDM DFB laser transmitter

Up to 100km on 9/125μm SMF

Low power dissipation <1W typically

18-Wavelength CWDM 1270n~1610nm Available

Monitoring Interface Compliant with SFF-8472

Operating temperature range: 0°C to 70°C

RoHS compliant and Lead Free

Applications

2Gigabit Ethernet

1XFiber Channel

CWDM Networks

Description

This transceiver provide optical networking equipment manufacturers with a timely and cost effective tool in supporting the unceasing demand for higher bandwidth equipment build-outs in the enterprise access and metropolitan area networks. There are 18 center wavelengths available from 1270nm to 1610nm. The 20nm channel spacing allows for un-cooled laser operation, a high yield manufacturing process, and lower cost Mux/Demux technology, thus providing a complete cost effective solution for various data and telecom applications.

Absolute Maximum Ratings

Table 1-Absolute Maximum Ratings

Parameter	Symbol	Min	Max	Unit	Note
Storage Temperature	TS	-40	85	°C
Operating Case Temperature	TOP	0	70	°C
Power Supply Voltage	VCC	-0.5	3.6	V
Relative Humidity (non-condensation)	RH	0	85	%

Note:

It has to be noted that the operation in excess of any individual absolute maximum ratings might cause permanent damage to this module.

Recommended Operating Conditions

Table 2-Recommended Operating Conditions

Parameter	Symbol	Min	Typical	Max	Unit	Note
Operating Case Temperature	TOP	0		70	°C
Power Supply Voltage	VCC	3.135	3.3	3.465	V
Power Consumption	P			1	W
Supply Current	Icc			300	mA
Bit Error Rate	BER			10^-12
Aggregate Bit Rate	BRAVE	-	1.25	-	Gb/s
Transmission Distance	TD		-	100	KM	Over SMF

Optical Characteristics

Table 3-Optical Characteristics

Transmitter Optical Specification
Parameter	Symbol	Min	Typ	Max	Units	Notes
Center Wavelength	λc	λ-6.5	λ	λ+6.5	nm
Spectral Width	σ			1	nm
Side Mode Suppression Ratio	SMSR	30			dB
Optical Output Power	Pout	-1		+5	dBm
Optical Rise/Fall Time	tr / tf			260	ps
Extinction Ratio	ER	8.2			dB
Generated Jitter (peak to peak)	JTXp-p			0.07	UI
Generated Jitter (rms)	JTXrms			0.007	UI
Eye Mask for Optical Output		Compliant with IEEE802.3z(class 1 laser safety)
Receiver Optical Specification
Optical Input Wavelength	λc	1260		1620	nm
Receiver Overload	Pol	-3			dBm
RX Sensitivity	Sen			-28	dBm
RX_LOS Assert	LOS A	-45			dBm
RX_LOS De-assert	LOS D			-29	dBm
RX_LOS Hysteresis	LOS H	0.5			dB

Electrical Characteristics

The following electrical characteristics are defined over the recommended operating environment

Table 4-Electrical Characteristics

Parameter	Symbol	Mi	Typ	Max		Units	Notes
Transmitter (Module Input)
Input differential impedance	Rin	90	100		110
Single ended data input swing	Vin PP	250			1200	mVp-p	1
Transmit Disable Voltage	VD	Vcc – 1.3			Vcc	V	2
Transmit Enable Voltage	VEN	Vee			Vee+ 0.8	V
Transmit Disable Assert Time	Tdessert				10	us
Receiver (Module Output)
Single ended data output swing	Vout,pp	300		800		mv	3
Data output rise time	tr			260		ps	4
Data output fall time	tf			260		ps	4
LOS Fault	Vlosfault	Vcc – 0.5		VCC_host		V	5
LOS Normal	Vlos norm	Vee		Vee+0.5		V	5
Power Supply Rejection	PSR	100				mVpp	6

Note:

1、AC coupled.

2、Or open circuit.

3、Into 100 ohm differential termination. 4. 20 – 80 %

4、LOS is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.

5、All transceiver specifications are compliant with a power supply sinusoidal modulation of 20 Hz to 1.5MHz up to specified value applied through the power supply filtering network shown on page 23 of the Small Form-factor Pluggable (SFP) Transceiver Multi-Source Agreement (MSA), September 14, 2000.

Digital Diagnostics

Table 6-Digital Diagnostics

Parameter	Symbol	Min	Max	Unit	Note
Temperature Monitor Absolute Error	DMI_Temp	-3	3	°C	Cover full operating temperature range
Supply Voltage Monitor Absolute Error	DMI _VCC	-0.1	0.1	V	Cover full operating temperature range
Channel RX Power Monitor Absolute Error	DMI_RX_Ch	-3	3	dB
Channel Bias Current Monitor	DMI_Ibias_Ch	-10%	10%
Channel TX Power Monitor Absolute Error	DMI_TX_Ch	-3	3	dB

Edge connector and pinout description

The electrical pinout of the SFP module is shown in Figure below.

PIN #	Name	Function	Notes
1	VeeT	Transmitter Ground	1
2	Tx Fault	Transmitter Fault - High indicates a fault condition	2
3	Tx Disable	Transmitter Disable – High or open disables the transmitter
4	SDL	2-wire Serial Interface Data Line (MOD-DEF2)	3
5	SCL	2-wire Serial Interface Clock (MOD-DEF1)	3
6	MOD-ABS	Module Absent, connected to VeeT or VeeR in the module
7	RS0	Rate Select 0	5
8	RX_LOS	Receiver Loss of Signal(LVTTL-O). Logic 0 indicates normal operation	4
9	RS1	Rate Select 1	1
10	VeeR	Receiver Ground	1
11	VeeR	Receiver Ground	1
12	RD-	Inverse Received Data out (CML-O), AC Coupled
13	RD+	Receiver Non-inverted DATA out. AC Coupled
14	VeeR	Receiver Ground	1
15	VccR	Receiver Power Supply
16	VccT	Transmitter Power Supply
17	VeeT	Transmitter Ground	1
18	TD+	Transmitter Non-Inverted DATA in. AC Coupled.
19	TD-	Transmitter Inverted DATA in. AC Coupled.
20	VeeT	Transmitter Ground	1

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Resources

1.25Gb/s SFP CWDM 100km