| Description:
The 1.25G SFP optical module is Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). They simultaneously comply with Gigabit Ethernet as specified in IEEE Std 802.31 and 1x and 2x Fiber Channel as defined in FC-PI 13.03.
The 1000BASE-LX/LH (long wavelength/long haul) SFP module interfaces fully comply with the IEEE 802.3z 1000BASE-LX standard.Their higher optical quality allows them to reach 6.2 miles (10 km) to 62.1 miles(100km) over single-mode fiber (SMF) .
Features:
l Up to 1.25Gb/s bi-directional data links
l Hot-pluggable SFP footprint
l 1310/1550nm FP/DFB, SM Fiber
l Duplex LC connector
l Very low jitter
l Up to 100km on 9/125μm SMF
l Metal enclosure, for lower EMI
l Single 3.3V power supply
l Low power dissipation <700mW typical
Application:
- Switch to switch interface
- High speed I/O for file servers .
- Bus extension applications
Description:
The Small Form Factor Pluggable (SFP)
transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing
Agreement (MSA). They simultaneously comply with Gigabit Ethernet as specified in
IEEE Std 802.31 and 1x and 2x Fiber Channel as defined in FC-PI 13.03.
Absolute Maximum Ratings:
|
Parameter
|
Symbol
|
Min
|
Typ
|
Max
|
Unit
|
Ref.
|
|
Maximum Supply
Voltage
|
Vcc
|
0.5
|
|
4.5
|
V
|
|
|
Storage
Temperature
|
TS
|
-40
|
|
100
|
℃
|
|
|
Case Operating
Temperature
|
TOP
|
-40
|
|
85
|
℃
|
|
|
Relative
Humidity
|
RH
|
0
|
|
85
|
%
|
1
|
Electrical Characteristics (TOP = -40 to 85 ℃,
VCC = 3.00 to 3.60 Volts)
|
Parameter
|
Symbol
|
Min
|
Typ
|
Max
|
Unit
|
Ref.
|
|
Supply Voltage
|
Vcc
|
3.00
|
|
3.60
|
V
|
|
|
Supply Current
|
Icc
|
|
200
|
300
|
mA
|
|
|
Transmitter
|
|
Input
differential impedance
|
Rin
|
|
100
|
|
Ω
|
2
|
|
Single ended
data input swing
|
Vin,pp
|
250
|
|
1200
|
mV
|
|
|
Transmit
Disable Voltage
|
VD
|
Vcc – 1.3
|
|
Vcc
|
V
|
|
|
Transmit
Enable Voltage
|
VEN
|
Vee
|
|
Vee+ 0.8
|
V
|
3
|
|
Transmit
Disable Assert Time
|
|
|
|
10
|
us
|
|
|
Receiver
|
|
Single ended
data output swing
|
Vout,pp
|
300
|
400
|
800
|
mV
|
4
|
|
Data output
rise time
|
tr
|
|
100
|
175
|
ps
|
5
|
|
Data output
fall time
|
tf
|
|
100
|
175
|
ps
|
5
|
|
LOS Fault
|
VLOS fault
|
Vcc – 0.5
|
|
VccHOST
|
V
|
6
|
|
LOS Normal
|
VLOS norm
|
Vee
|
|
Vee+0.5
|
V
|
6
|
|
Power Supply
Rejection
|
PSR
|
100
|
|
|
mVpp
|
7
|
|
Deterministic
Jitter Contribution
|
RX Δ DJ
|
|
|
51.7
|
ps
|
8
|
|
Total Jitter
Contribution
|
RX Δ TJ
|
|
|
122.4
|
ps
|
|
Notes:
1. Non condensing.
2. AC coupled.
3. Or open circuit.
4. Into 100 ohm differential termination.
5. 20 – 80 %
6. LOS is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no
signal detected.
7. All transceiver specifications are compliant with a power supply
sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value applied through
the power supply filtering network shown on page 23 of the Small Form-factor
Pluggable (SFP) Transceiver MultiSource Agreement (MSA), September 14, 2000.
8. Measured with DJ-free data input signal. In actual application, output
DJ will be the sum of input DJ and DDJ.
Optical Characteristics (TOP = 0 to 70℃,
VCC = 3.00 to 3.60 Volts)
|
Parameter
|
Symbol
|
Min
|
Typ
|
Max
|
Unit
|
Ref.
|
|
Transmitter
|
|
Output Opt. Power
|
POUT
|
-9
|
|
-3
|
dBm
|
1
|
|
Optical Wavelength
|
λ
|
1270
|
1310
|
1360
|
nm
|
2
|
|
Spectral Width
|
σ
|
|
|
3
|
nm
|
2
|
|
Optical Modulation Amplitude
|
OMA
|
174
|
|
|
μW
|
2,3
|
|
Optical Rise/Fall Time
|
tr/ tf
|
|
100
|
160
|
ps
|
4
|
|
RIN
|
|
|
|
-120
|
dB/Hz
|
|
|
Deterministic Jitter Contribution
|
TX Δ DJ
|
|
20
|
56.5
|
ps
|
5
|
|
Total Jitter Contribution
|
TX Δ TJ
|
|
70
|
119
|
ps
|
|
|
Optical Extinction Ratio
|
ER
|
9
|
|
|
dB
|
|
|
Receiver
|
|
Average Rx Sensitivity @ 2.125
|
RSENS1
|
|
|
-21
|
dBm
|
6, 7
|
|
Gb/s (2X Fiber Channel)
|
|
|
|
|
|
|
|
Average Rx Sensitivity @ 1.25 Gb/s
|
RSENS2
|
|
|
-22
|
dBm
|
6, 7
|
|
(Gigabit Ethernet)
|
|
|
|
|
|
|
|
Average Rx Sensitivity @ 1.06 Gb/s
|
RSENS1
|
|
|
-22
|
dBm
|
6, 7
|
|
(1X Fiber Channel)
|
|
|
|
|
|
|
|
Stressed RX sens. =1.25 Gb/s
|
|
|
-18
|
-14.5
|
dBm
|
|
|
Average Received Power
|
RxMAX
|
|
|
0
|
dBm
|
|
|
Receiver Elec. 3 dB cutoff freq.
|
|
|
|
1500
|
MHz
|
|
|
Optical Center Wavelength
|
λC
|
1265
|
|
1600
|
nm
|
|
|
Return Loss
|
|
12
|
|
|
dB
|
|
|
LOS De-Assert
|
LOSD
|
|
-23
|
-19
|
dBm
|
|
|
LOS Assert
|
LOSA
|
-30
|
-25
|
|
dBm
|
|
|
LOS Hysteresis
|
|
0.5
|
|
|
dB
|
|
Notes:
1. Class 1 Laser Safety per FDA/CDRH and EN (IEC) 60825 regulations.
2. Also specified to meet curves in FC-PI 13.0 Figures 18 and 19, which
allow trade-off between
wavelength, spectral
width and OMA.
3. Equivalent extinction ratio specification for Fiber Channel. Allows
smaller ER at higher average power.
4. Unfiltered, 20-80%. Complies with IEEE 802.3 (Gig. E), FC 1x and 2x eye
masks when filtered.
5. Measured with DJ-free data input signal. In actual application, output
DJ will be the sum of input DJ and DDJ.
6. Measured with conformance signals defined in FC-PI 13.0 specifications.
7. Measured with PRBS 27-1 at 10-12 BER
|