Product Specification
4.25 Gb/s RoHS Compliant Short-Wavelength 2x7 SFF Transceiver
FTLF8524E2xNy
PRODUCT FEATURES
Up to 4.25 Gb/s bi-directional
data links
2x7 pin SFF-like footprint
Built-in digital diagnostic functions
850nm Oxide VCSEL laser
transmitter
Duplex LC connector
RoHS Compliant and Lead Free
Up to 500m on 50/125µm MMF,
300m on 62.5/125µm MMF
Metal enclosure, for lower EMI
Single 3.3V power supply
Extended operating temperature
range: -10°C to 85°C
Finisar’s FTLF8524E2xNy Small Form Factor (SFF) transceivers comply with the 2x5
standard package defined by the Small Form Factor Multi-Sourcing Agreement (MSA)
1
,
with the exception of 4 extra pins outlined in Section I below. They are compatible with
Fibre Channel FC-PI-2 Rev. 7.0
2
and are RoHS compliant and lead-free per Directive
2002/95/EC
3
and Finisar Application Note AN-2038.
PRODUCT SELECTION
APPLICATIONS
Tri-Rate 1.063/2.125/4.25 Gb/s
Fibre Channel
FTLF8524E2xNy
x
y
G
K
L
V
2 Grounding Pins, Short EMI shield
2 Grounding Pins, Long EMI shield
Non Rate Selectable - 1x, 2x, 4x Fibre Channel
Rate Selectable - 1x, 2x, 4x Fibre Channel
Finisar Corporation July 12, 2005 RevG
Page 1
FTLF8524E2xNy 2x7 Pin SFF Product Specification – July 2005
I.
Pin
MS
1
2
3
4
5
6
7
8
9
10
A
B
C
D
Notes:
Pin Descriptions
Symbol
MS
V
EER
V
CCR
SD
RD-
RD+
V
CCT
V
EET
T
DIS
TD+
TD-
SDA
SCL
Rate
Select
Reserved
Name/Description
Mounting Studs are for mechanical attachment and are connected to
chassis ground.
Chassis ground is internally isolated from circuit
grounds.
Connection to user’s ground plane is recommended.
Receiver Ground (Common with Transmitter Ground)
Receiver Power Supply
Signal Detect. Logic 1 indicates normal operation.
Receiver Inverted DATA out. AC Coupled
Receiver Non-inverted DATA out. AC Coupled
Transmitter Power Supply
Transmitter Ground (Common with Receiver Ground)
Transmitter Disable
Transmitter Non-Inverted DATA in. AC Coupled.
Transmitter Inverted DATA in. AC Coupled
Two Wire Digital Diagnostics Data Interface
Two Wire Digital Diagnostics Clock Interface
1.063 Gb/s or 2.125 Gb/s Fibre Channel,
Open or Low =
(Low Bandwidth)
2.125 or 4.25 Gb/s Fibre Channel (High Bandwidth)
High =
Logic Family
NA
NA
NA
LVTTL
See Rx spec.
See Rx spec.
NA
NA
LVTTL
See Tx spec.
See Tx spec.
See Note 1
See Note 1
LVTTL
See Note 2
NA
1.
Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and V
CC
.
2.
For Rate Selectable version only:
In accordance with SFF Committee SFF-8079 Draft Rev. 1.6,
Table 3. Note that rate select can also be set through 2-wire bus in accordance with SFF-8472
5
at Bit
3, Byte 110, Address A2h (note: writing ‘1’ selects full bandwidth operation). Rate select is the logic
OR of the input state of Rate Select Pin and 2-wire bus. Non Rate Selectable version can operate at 1x,
2x, 4x Fibre Channel independent of rate select pin setting.
MS
D B 10 …
6
TOP VIEW
CA1
…
5
MS
Finisar Corporation July 12, 2005 RevG
Page 2
FTLF8524E2xNy 2x7 Pin SFF Product Specification – July 2005
II.
Absolute Maximum Ratings
Symbol
Vcc
T
S
T
OP
RH
Min
-0.5
-40
-10
0
Typ
Max
4.0
85
85
85
260/10
260/10
Unit
V
°C
°C
%
°C/s
°C/s
Ref.
Parameter
Maximum Supply Voltage
Storage Temperature
Case Operating Temperature
Relative Humidity
Hand Lead Soldering Temperature/Time
Wave Lead Soldering Temperature/Time
Notes:
1. Non condensing.
1
III.
Electrical Characteristics
(T
OP
= -10 to 85
°
C, V
CC
= 3.0 to 3.6 Volts)
Parameter
Symbol
Vcc
Icc
R
in
Vin,pp
V
D
V
EN
Rout
Vout,pp
t
r
/ t
f
SD
normal
SD
fault
PSR
RX
∆
DJ
RX
∆
DJ
RX
∆
TJ
RX
∆
TJ
Min
3.0
Typ
180
80
250
2
Vee
80
250
100
Max
3.6
240
120
1200
Vcc
Vee+ 0.8
120
550
120
Vcc
HOST
Vee+0.5
100
51.7
23.5
122.4
61
Unit
V
mA
Ω
mV
V
V
Ω
mV
ps
V
V
mVpp
ps
ps
ps
ps
Ref.
Supply Voltage
Supply Current
Transmitter
Input differential impedance
Single ended data input swing
Transmit Disable Voltage
Transmit Enable Voltage
Receiver
Output differential impedance
Single ended data output swing
Data output rise/fall time
Mask Margin
≤
2.125 Gb/s
Signal Detect Normal
Signal Detect Fault
Power Supply Rejection
Deterministic Jitter Contribution @ 2.125 Gb/s
Deterministic Jitter Contribution @ 4.25 Gb/s
Total Jitter Contribution (p-p) @ 2.125 Gb/s
Total Jitter Contribution (p-p) @ 4.25 Gb/s
1
2
1
3
4
5
5
6
7
7
8
8
100
350
45%
Vee
Notes:
1. AC coupled.
2. Or open circuit.
3. Into 100
Ω
differential termination. Data pattern is PRBS 2
7
-1.
4. 20 – 80 %.
5. Signal detect is LVTTL. Logic 1 indicates normal operation; logic 0 indicates no signal detected.
6. 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.
7. Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ
and
∆
DJ, 10
-12
BER.
8. If measured with TJ-free data input signal, , 10
-12
BER. In actual application, output TJ will be given
by:
TJ
OUT
=
DJ
IN
+ ∆
DJ
+
(
TJ
IN
−
DJ
IN
)
+
(
∆
TJ
− ∆
DJ
)
2
2
Finisar Corporation July 12, 2005 RevG
Page 3
FTLF8524E2xNy 2x7 Pin SFF Product Specification – July 2005
IV.
Optical Characteristics
(T
OP
= -10 to 85
°
C, V
CC
= 3.0 to 3.6 Volts)
Parameter
Symbol
P
OUT
λ
σ
OMA
OMA
OMA
t
r
/ t
f
RIN
TX
∆
DJ
TX
∆
DJ
TX
∆
TJ
TX
∆
TJ
Rx
SENS
Rx
SENS
Rx
SENS
0.055
0.096
0.138
Rx
MAX
λ
C
RL
SD
normal
SD
fault
770
12
-30
0.5
0
1500
2500
860
-20
Min
-9
830
247
196
156
90
-118
56.5
28.2
119
56.5
45%
-20
-18
-15
dBm
dBm
dBm
mW
mW
mW
dBm
MHz
MHz
nm
dB
dBm
dBm
dB
6
6
6
8
8
8
9
10
Typ
Max
-2.5
860
0.85
Unit
dBm
nm
nm
µW
µW
µW
ps
dB/Hz
ps
ps
ps
ps
Ref.
1
Transmitter
Output Opt. Pwr: 50 or 62.5 MMF
Optical Wavelength
Spectral Width
Optical Modulation Amplitude @ 4.25 Gb/s
Optical Modulation Amplitude @ 2.125 Gb/s
Optical Modulation Amplitude @ 1.0625 Gb/s
Optical Rise/Fall Time
Relative Intensity Noise
Deterministic Jitter Contribution @ 2.125 Gb/s
Deterministic Jitter Contribution @ 4.25 Gb/s
Total Jitter Contribution @ 2.125 Gb/s
Total Jitter Contribution @ 4.25 Gb/s
Mask Margin
≤
2.125 Gb/s
Receiver
Receiver Sensitivity = 1.0625 Gb/s
Receiver Sensitivity = 2.125 Gb/s
Receiver Sensitivity = 4.25 Gb/s
Stressed RX sens. =1.0625 Gb/s
Stressed RX sens. =2.125 Gb/s
Stressed RX sens. =4.25 Gb/s
Average Received Power
Receiver Elec. 3 dB cutoff frequency
Receiver Elec. 3 dB cutoff frequency
Optical Center Wavelength
Return Loss
Signal Detect Normal
Signal Detect Fault
Signal Detect Hysteresis
2
2
2
3
4
4
5
5
Notes:
1. Class 1 Laser Safety per FDA/CDRH, EN (IEC) 60825 laser safety regulations.
2. Equivalent extinction ratio specification for Fibre Channel. Allows smaller ER at higher average
power.
3. Unfiltered, 20-80%. Complies with FC 1x and 2x eye mask when filtered.
4. Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ
and
∆
DJ, 10
-12
BER.
5. If measured with TJ-free data input signal, 10
-12
BER. In actual application, output TJ will be given by:
TJ
OUT
=
DJ
IN
+ ∆
DJ
+
6.
7.
8.
9.
10.
(
TJ
IN
−
DJ
IN
)
+
(
∆
TJ
− ∆
DJ
)
2
2
Specifications are for 50 micro-meter or 62.5 micro-meter fiber
As measured with 9dB extinction ratio.
Measured with conformance signals defined in FC-PI-2 Rev. 7.0 specifications.
Rate selectable version in low bandwidth mode.
Rate selectable version in high bandwidth mode.
Finisar Corporation July 12, 2005 RevG
Page 4
FTLF8524E2xNy 2x7 Pin SFF Product Specification – July 2005
V.
General Specifications
Parameter
Symbol
BR
BER
L
L
Min
Typ
1.062,
2.125,
4.25
Max
Units
Gb/sec
Ref.
1
5
2
3
4
2
3
4
Data Rate
Bit Error Rate
Fiber Length on 50/125µm MMF
Fiber Length on 62.5/125µm MMF
10
-12
550
300
150
300
150
70
m
m
Notes:
1. 1x, 2x, and 4x Fibre Channel compatible per FC-PI-2 Rev. 7.0.
2. At 1.0625 Gb/s Fibre Channel data rate.
3. At 2.125 Gb/s Fibre Channel data rate.
4. At 4.25 Gb/s Fibre Channel data rate.
5. At 1.0625, 2.125, and 4.25Gb/s with PRBS 2
7
-1.
VI.
Environmental Specifications
Finisar SFF transceivers have an extended operating temperature range from –10°C to
+85°C case temperature.
Parameter
Case Operating Temperature
Storage Temperature
Symbol
T
op
T
sto
Min
-10
-40
Typ
Max
85
85
Units
°C
°C
Ref.
Notes:
1. SFF transceivers may be water washed with the optical port plug in position. However, the process
must be followed by a baking step at 80°C for one hour, to ensure the drying of any water which may
be trapped inside then shells of the modules.
VII.
Regulatory Compliance
Finisar transceivers are Class 1 Laser Products and comply with US FDA regulations.
These products are certified by TÜV and CSA to meet the Class 1 eye safety
requirements of EN (IEC) 60825 and the electrical safety requirements of
EN (IEC) 60950. Copies of certificates are available at Finisar Corporation upon request.
Finisar Corporation July 12, 2005 RevG
Page 5
51mcu
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