Finisar
Product Specification
Multiprotocol 80Km, 10Gb/s DWDM XFP Optical Transceiver
FTLX3815M3xx
PRODUCT FEATURES
Supports 8.5Gb/s to 11.35Gb/s
Hot-pluggable XFP footprint
RoHS-6 Compliant (lead-free)
100GHz ITU Grid, C-Band
Duplex LC connector
Power dissipation <3.5W
Built-in digital diagnostic functions
Temperature range: 0°C to 70°C
Point-to-Point & OSNR optimized
versions
Reference Clock Not Required
APPLICATIONS
ITU G.698.1, DW100S-2Dx compliant
DWDM 10G SONET/SDH
ITU G.698.2, DW100C-2Ax compliant
DWDM 10G SONET/SDH
DWDM, IEEE 10GBASE-ZR based Ethernet
10GFC (SM-1200-LL-L) & 8GFC (SM-800-
LC-L) compliant
ITU G.709 / OTN FEC applications
Finisar’s FTLX3815M3xx Small Form Factor 10Gb/s (XFP) transceiver complies with
the XFP Multi-Source Agreement (MSA) Specification
1
. It supports amplified DWDM
10Gb/s SONET/SDH, 10 Gigabit Ethernet, and 10 Gigabit Fibre Channel applications
over 80km of fiber without dispersion compensation. Digital diagnostics functions are
available via a 2-wire serial interface, as specified in the XFP MSA. The transceiver is
RoHS compliant and lead free per Directive 2002/95/EC
3
, and Finisar Application Note
AN-2038
4
.
PRODUCT SELECTION
FTLX3815M3xx
xx:
100GHz ITU-T channel
1174161
Rev.:
A04
Page 1 of 23
This document contains proprietary and confidential information to Finisar Corp. This document and the entire information
contained herein, and any other tangible representation thereof, is not to be copied, reproduced, duplicated, distributed, or
modified, in whole or in part, and/or used without the expressed written consent of Finisar Corp.
Printed copy may not be the latest revision please refer to Agile for current revision
FTLX3815M3xx DWDM XFP Product Specification – Nov 2014
Finisar
I.
II.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Pin Descriptions
Logic
LVTTL-I
LVTTL-O
LVTTL-I
Symbol
GND
VEE5
Mod-Desel
Interrupt
TX_DIS
VCC5
GND
VCC3
VCC3
SCL
SDA
Mod_Abs
Mod_NR
RX_LOS
GND
GND
RD-
RD+
GND
VCC2
P_Down/RST
Name/Description
Module Ground
Optional –5.2 Power Supply –
Not used
Module De-select; When held low allows the module to
respond to 2-wire serial interface commands
Interrupt (bar); Indicates presence of an important condition
which can be read over the serial 2-wire interface
Transmitter Disable; Transmitter laser source turned off
+5 Power Supply
Module Ground
+3.3V Power Supply
+3.3V Power Supply
Serial 2-wire interface clock
Serial 2-wire interface data line
Module Absent; Indicates module is not present. Grounded
in the module.
Module Not Ready; Finisar defines it as a logical OR
between RX_LOS and Loss of Lock in TX/RX.
Receiver Loss of Signal indicator
Module Ground
Module Ground
Receiver inverted data output
Receiver non-inverted data output
Module Ground
+1.8V Power Supply –
Not used
Power Down; When high, places the module in the low
power stand-by mode and on the falling edge of P_Down
initiates a module reset
Reset; The falling edge initiates a complete reset of the
module including the 2-wire serial interface, equivalent to a
power cycle.
+1.8V Power Supply –
Not used
Module Ground
Reference Clock non-inverted input, AC coupled on the
host board –
Not Required
Reference Clock inverted input, AC coupled on the host
board –
Not Required
Module Ground
Module Ground
Transmitter inverted data input
Transmitter non-inverted data input
Module Ground
Ref.
1
2
1
2
2
2
2
2
1
1
1
LVTTL-I
LVTTL-
I/O
LVTTL-O
LVTTL-O
LVTTL-O
CML-O
CML-O
LVTTL-I
22
23
24
25
PECL-I
PECL-I
VCC2
GND
RefCLK+
RefCLK-
1
26
GND
1
27
GND
1
28
CML-I
TD-
29
CML-I
TD+
30
GND
1
Notes:
1. Module circuit ground is isolated from module chassis ground within the module.
2. Open collector; should be pulled up with 4.7k – 10kohms on host board to a voltage between 3.15V
and 3.6V.
1174161
Rev.:
A04
Page 2 of 23
This document contains proprietary and confidential information to Finisar Corp. This document and the entire information
contained herein, and any other tangible representation thereof, is not to be copied, reproduced, duplicated, distributed, or
modified, in whole or in part, and/or used without the expressed written consent of Finisar Corp.
Printed copy may not be the latest revision please refer to Agile for current revision
FTLX3815M3xx DWDM XFP Product Specification – Nov 2014
Finisar
Diagram of Host Board Connector Block Pin Numbers and Names
II.
Absolute Maximum Ratings
Parameter
Maximum Supply Voltage #1
Maximum Supply Voltage #2
Storage Temperature
Case Operating Temperature
Receiver Damage Threshold
Symbol
Vcc3
Vcc2
T
S
T
OP
P
Rdmg
Min
-0.5
-0.5
-40
0
+5
Typ
Max
4.0
6.0
85
70
Unit
V
V
C
C
dBm
Ref.
1174161
Rev.:
A04
Page 3 of 23
This document contains proprietary and confidential information to Finisar Corp. This document and the entire information
contained herein, and any other tangible representation thereof, is not to be copied, reproduced, duplicated, distributed, or
modified, in whole or in part, and/or used without the expressed written consent of Finisar Corp.
Printed copy may not be the latest revision please refer to Agile for current revision
FTLX3815M3xx DWDM XFP Product Specification – Nov 2014
Finisar
III.
Electrical Characteristics
(T
OP
= -5 to 70
C,
V
CC5
= 4.75 to 5.25 Volts)
FTLX3815M3xx
Symbol
Min
Vcc3
3.13
Vcc5
4.75
Icc5
Icc3
P
R
in
Vin,pp
V
D
V
EN
Vout,pp
t
r
t
f
V
LOS fault
V
LOS norm
PSR
V
SEPP
R
L
Δf
-
Parameter
Supply Voltage #1
Supply Voltage #2
Supply Current – Vcc5 supply
Supply Current – Vcc3 supply
Module total power dissipation
Transmitter
Input differential impedance
Differential data input swing
Transmit Disable Voltage
Transmit Enable Voltage
Receiver
Differential data output swing
Data output rise time
Data output fall time
LOS Fault
LOS Normal
Power Supply Rejection
Reference Clock (AC-Coupled)
Single-ended peak to peak voltage
swing
Single-ended resistance
Frequency clock tolerance
Duty cycle
Typ
Max
3.46
5.25
450
750
3.5
100
120
2.0
GND
500
820
Vcc
GND+ 0.8
850
40
40
Vcc
HOST
GND+0.5
See Note 7 below
450
50
60
+100
60
Vcc – 0.5
GND
Unit
V
V
mA
mA
W
mV
V
V
mV
ps
ps
V
V
Ref.
1
2
3
4
5
5
6
6
7
200
40
-100
40
mV
ppm
%
Notes:
1. Maximum total power value is specified across the full temperature and voltage range.
2. After internal AC coupling.
3. Or open circuit.
4. Into 100 ohms differential termination.
5. 20 – 80 %
6. Loss Of Signal is open collector to be pulled up with a 4.7k – 10kohm resistor to 3.15 – 3.6V. Logic 0
indicates normal operation; logic 1 indicates no signal detected.
7. Per Section 2.7.1. in the XFP MSA Specification
1
.
1174161
Rev.:
A04
Page 4 of 23
This document contains proprietary and confidential information to Finisar Corp. This document and the entire information
contained herein, and any other tangible representation thereof, is not to be copied, reproduced, duplicated, distributed, or
modified, in whole or in part, and/or used without the expressed written consent of Finisar Corp.
Printed copy may not be the latest revision please refer to Agile for current revision
FTLX3815M3xx DWDM XFP Product Specification – Nov 2014
Finisar
XII.
Optical Characteristics
(EOL, T
OP
= -5 to 70C, V
CC5
= 4.75 to 5.25 Volts)
Symbol
P
OUT
ER
c
c
SSR
min
Tx
j
Tx
jRMS
Min
-1
8.2
X-100
X-25
35
0.1
0.01
30
Typ
Max
+3
Unit
dBm
dB
GHz
pm
pm
dB
UI
UI
s
dBm
nm
dB
dBm
dBm
dB
Ref
Transmitter
Parameter
Output Opt. Pwr: 9/125 SMF
Optical Extinction Ratio
Center Wavelength Spacing
Transmitter Center Wavelength –
End Of Life
Transmitter Center Wavelength –
Beginning Of Life
Sidemode Suppression ratio
Tx Jitter Generation (peak-to-peak)
Tx Jitter Generation (RMS)
Tx Locked Eye (Cold Start)
Receiver
Overload
Optical Center Wavelength
Receiver Reflectance
LOS De-Assert
LOS Assert
LOS Hysteresis
100
X
X
X+100
X+25
1
2
2
3
4
P
MAX
C
R
rx
LOS
D
LOS
A
-6
1270
1615
-27
-30
-37
0.5
FTLX3815M3xx
Receiver Sensitivity
Data rate
(Gb/s)
8.5
9.95
10.3
10.7
11.1
11.3
BER
1e-12
1e-12
1e-12
1e-4
1e-4
1e-4
5
5
Dispersion (ps/nm)
-500 to 1450
-500 to 1450
-500 to 1450
-500 to 1450
-500 to 1450
-500 to 1450
Sensitivity back-to-
back at
OSNR>30dB
(dBm)
-24
-24
-24
-27
-27
-27
Power Penalty
at OSNR>30dB
(dB)
3
3
3
3
3
3
Threshold
Adjust
Required
No
No
No
Yes
Yes
Yes
1174161
Rev.:
A04
Page 5 of 23
This document contains proprietary and confidential information to Finisar Corp. This document and the entire information
contained herein, and any other tangible representation thereof, is not to be copied, reproduced, duplicated, distributed, or
modified, in whole or in part, and/or used without the expressed written consent of Finisar Corp.
Printed copy may not be the latest revision please refer to Agile for current revision
