Product Specification
3.7 Gb/s RoHS Compliant Short-Wavelength SFP Transceiver
FTLF8524P3BNL
PRODUCT FEATURES
Up to 3.7 Gb/s bi-directional
data links
Hot-pluggable SFP footprint
Built-in digital diagnostic functions
850nm Oxide VCSEL laser
transmitter
Duplex LC connector
RoHS Compliant and Lead Free
Up to 300m on 62.5/125µm MMF
Metal enclosure, for lower EMI
Single 3.3V power supply
<0.5W
Extended operating temperature
range: -40°C to 85°C
APPLICATIONS
Wireless: OBSAI,CPRI, LTE
Finisar’s FTLF8524P3xNy Small Form Factor Pluggable (SFP) transceivers are
compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA)
1
.
The optical transceivers are compliant per the RoHS Directive 2011/65/EU. See Finisar
Application Note AN-2038 for more details. Digital diagnostics functions are available
via the 2-wire serial bus specified in the SFP MSA.
PRODUCT SELECTION
FTLF8524P3BNL
Finisar Corporation August 2015 Rev. C
Page 1
FTLF8524P3BNL Pluggable SFP Product Specification
I.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin Descriptions
Symbol
V
EET
T
FAULT
T
DIS
MOD_DEF(2)
MOD_DEF(1)
MOD_DEF(0)
Rate Select
LOS
V
EER
V
EER
V
EER
RD-
RD+
V
EER
V
CCR
V
CCT
V
EET
TD+
TD-
V
EET
Name/Description
Transmitter Ground (Common with Receiver Ground)
Transmitter Fault.
Transmitter Disable. Laser output disabled on high or open.
Module Definition 2. Data line for Serial ID.
Module Definition 1. Clock line for Serial ID.
Module Definition 0. Grounded within the module.
NA
Loss of Signal indication. Logic 0 indicates normal operation.
Receiver Ground (Common with Transmitter Ground)
Receiver Ground (Common with Transmitter Ground)
Receiver Ground (Common with Transmitter Ground)
Receiver Inverted DATA out. AC Coupled
Receiver Non-inverted DATA out. AC Coupled
Receiver Ground (Common with Transmitter Ground)
Receiver Power Supply
Transmitter Power Supply
Transmitter Ground (Common with Receiver Ground)
Transmitter Non-Inverted DATA in. AC Coupled.
Transmitter Inverted DATA in. AC Coupled.
Transmitter Ground (Common with Receiver Ground)
Ref.
1
2
3
3
3
4
1
1
1
1
1
1
Notes:
1. Circuit ground is internally isolated from chassis ground.
2. Laser output disabled on T
DIS
>2.0V or open, enabled on T
DIS
<0.8V.
3. 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.
4. 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.
VeeT
1
2
3
4
VeeT
TD-
TXFault
TD+
TX Disable
VeeT
MOD-DEF(2)
VccT
16
15
14
13
12
11
MOD-DEF(1)
VccR
6
7
8
9
10
MOD-DEF(0)
VeeR
Rate Select
RD+
LOS
RD-
VeeR
VeeR
VeeR
17
18
19
20
Towards
Bezel
5
Towards
ASIC
Diagram of Host Board Connector Block Pin Numbers and Names
Finisar Corporation August 2015 Rev. C
Page 2
FTLF8524P3NL Pluggable SFP Product Specification
II.
Absolute Maximum Ratings
Parameter
Maximum Supply Voltage
Storage Temperature
Case Operating Temperature
Relative Humidity
Symbol
Vcc
T
S
T
A
RH
Min
-0.5
-40
-40
0
Typ
Max
4.0
85
85
85
Unit
V
°C
°C
%
Ref.
1
III.
Electrical Characteristics
(T
A
, V
CC
= 3.1 to 3.46 Volts)
Parameter
Symbol
Vcc
Icc
R
in
Vin,pp
V
D
V
EN
Vout,pp
t
r
t
f
V
LOS fault
V
LOS norm
PSR
Min
3.1
Typ
130
100
150
2
Vee
300
1200
Vcc
Vee+ 0.8
800
140
140
Vcc
HOST
Vee+0.8
28
77
Max
3.46
144
Unit
V
mA
Ω
mV
V
V
mV
ps
ps
V
V
mVpp
ps
ps
Ref.
Supply Voltage
Supply Current
Transmitter
Input differential impedance
Single ended data input swing
Transmit Disable Voltage
Transmit Enable Voltage
Receiver
Single ended data output swing
Data output rise time
Data output fall time
LOS Fault
LOS Normal
Power Supply Rejection
Determinstic Jitter Contribution @ 3.7 Gb/s
Total Jitter Contribution @ 3.7 Gb/s
2
3
4
2
Vee
100
5
6
6
7
7
8
9
10
Notes:
1. Non condensing.
2. Connected directly to TX data input pins. AC coupling from pins into laser driver IC.
3. We recommend <600mV for best EMI performance.
4. Or open circuit.
5. Into 100 ohms differential termination.
6. Unfiltered, 20 – 80 %
7. LOS is an open collector output. Should be pulled up with 4.7k – 10kohms on the host board. Normal
operation is logic 0; loss of signal is logic 1. Maximum pull-up voltage is 5.5V.
8. Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to
specified value applied through the recommended power supply filtering network.
9. Typical peak-to-peak jitter (=6*RMS width of Jitter).
10. Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ
and
∆
DJ. If measured with TJ-free data input signal. In actual application, output TJ will be given by:
TJ
OUT
=
DJ
IN
+ ∆
DJ
+
(
TJ
IN
−
DJ
IN
)
2
+
(
∆
TJ
− ∆
DJ
)
2
Finisar Corporation August 2015 Rev. C
Page 3
FTLF8524P3NL Pluggable SFP Product Specification
IV.
Optical Characteristics
(T
A
, V
CC
= 3. 10 to 3.46 Volts)
Parameter
Symbol
P
OUT
λ
σ
OMA
t
r
/ t
f
RIN
TX
∆
DJ
TX
∆
TJ
RxSENS
Rx
MAX
λ
C
LOS
D
LOS
A
Min
-9
830
247
103
-118
28.2
56.5
-13
0
860
-20
-30
0.5
Typ
Max
Unit
dBm
nm
nm
µW
ps
dB/Hz
ps
ps
dBm
dBm
nm
dB
dBm
dBm
dB
Ref.
1
Transmitter
Output Opt. Pwr: 50 or 62.5 MMF
Optical Wavelength
Spectral Width
Optical Modulation Amplitude
Optical Rise/Fall Time
Relative Intensity Noise
Deterministic Jitter Contribution
Total Jitter Contribution
Receiver
Receiver Sensitivity @3.7Gb/s (OMA)
Average Receiver Power
Optical Center Wavelength
Optical Return Loss
LOS De-Assert
LOS Assert
LOS Hysteresis
860
0.85
2
3
4
5
770
12
Notes:
1. Class 1 Laser Safety per FDA/CDRH, and EN (IEC) 60825 laser safety standards.
2. Unfiltered, 20-80%.
3. Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ
and
∆
DJ.
4. If measured with TJ-free data input signal. In actual application, output TJ will be given by:
TJ
OUT
=
DJ
IN
+ ∆
DJ
+
5.
(
TJ
IN
−
DJ
IN
)
2
+
(
∆
TJ
− ∆
DJ
)
2
Specifications are for 50 micro-meter or 62.5 micro-meter fiber.
Finisar Corporation August 2015 Rev. C
Page 4
FTLF8524P3NL Pluggable SFP Product Specification
V.
General Specifications
Parameter
Symbol
BR
BER
L
Min
Typ
3.7
Max
10
-12
300
Units
Gb/sec
1
m
Ref.
Data Rate
Bit Error Rate
Fiber Length over OM3
Notes:
1.
3.7Gb/s with PRBS 2
7
-1
VI.
Environmental Specifications
Symbol
T
op
T
sto
Min
-40
-40
Typ
Max
85
85
Units
°C
°C
Ref.
Parameter
Case Operating Temperature
Storage Temperature
VII.
Regulatory Compliance
Finisar transceivers are Class Finisar laser transceiver complies with Laser Class 1 per
latest edition of EN60825-1 and IEC 60825-1 for fiber optic systems.
Finisar Corporation August 2015 Rev. C
Page 5
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