Product Specification
40GBASE-LR4 QSFP+ Optical Transceiver Module
FTL4C1QL1L
PRODUCT FEATURES
9B
Hot-pluggable QSFP+ form factor
Supports 41.2 Gb/s aggregate bit
rates
Power dissipation < 3.5W
RoHS-6 compliant
Lite case temperature range 15°C
to 60°C
Single 3.3V power supply
Maximum link length of 2km on
Single Mode Fiber (SMF)
1
Uncooled 4x10Gb/s CWDM
transmitter
XLPPI electrical interface
Duplex LC receptacles
APPLICATIONS
40GBASE-LR4 40G Ethernet
Built-in digital diagnostic
functions, including Tx/Rx power
monitoring
Finisar’s FTL4C1QE1C QSFP+ transceiver modules are designed for use in 40 Gigabit
Ethernet links over single mode fiber. They are compliant with the QSFP+ MSA
1,2
and
IEEE 802.3ba 40GBASE-LR4
3
. Digital diagnostics functions are available via an I2C
interface, as specified by the QSFP+ MSA. The optical transceiver is compliant per the
RoHS Directive 2011/65/EU
4
. See Finisar Application Note AN-2038 for more details
5
.
3B
PRODUCT SELECTION
FTL4C1QL1L
16B
E:
1:
L:
40GBASE-LR4 compliant optical interface
First generation product
Lite Temperature range and Reach
Finisar Corporation October 2015
Rev C1
Page 1
FTL4C1QL1L Product Specification
I.
Pin Descriptions
Figure 1 – QSFP+ MSA-compliant 38-pin connector
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Symbol
GND
Tx2n
Tx2p
GND
Tx4n
Tx4p
GND
ModSelL
ResetL
Vcc Rx
SCL
SDA
GND
Rx3p
Rx3n
GND
Rx1p
Rx1n
GND
GND
Rx2n
Rx2p
GND
Rx4n
Rx4p
GND
6B
Name/Description
Ground
Transmitter Inverted Data Input
Transmitter Non-Inverted Data Input
Ground
Transmitter Inverted Data Input
Transmitter Non-Inverted Data Input
Ground
Module Select
Module Reset
+3.3 V Power supply receiver
2-wire serial interface clock
2-wire serial interface data
Ground
Receiver Non-Inverted Data Output
Receiver Inverted Data Output
Ground
Receiver Non-Inverted Data Output
Receiver Inverted Data Output
Ground
Ground
Receiver Inverted Data Output
Receiver Non-Inverted Data Output
Ground
Receiver Inverted Data Output
Receiver Non-Inverted Data Output
Ground
Notes
1
1
1
1
1
1
1
1
1
Finisar Corporation October 2015
Rev C1
Page 2
FTL4C1QL1L Product Specification
27
28
29
30
31
32
33
34
35
36
37
38
U
ModPrsL
IntL
Vcc Tx
Vcc1
LPMode
GND
Tx3p
Tx3n
GND
Tx1p
Tx1n
GND
Module Present
Interrupt
+3.3 V Power supply transmitter
+3.3 V Power Supply
Low Power Mode
Ground
Transmitter Non-Inverted Data Input
Transmitter Inverted Data Input
Ground
Transmitter Non-Inverted Data Input
Transmitter Inverted Data Input
Ground
1
1
1
Notes
1. Circuit ground is internally isolated from chassis ground.
II.
0B
General Product Characteristics
Value
QSFP+
41.2
10.3
Typical applications include
40G Ethernet, Infiniband,
Fibre Channel,
SATA/SAS3
38-pin edge connector
3.5
Serial, I2C-based, 400 kHz
maximum frequency
Symbol
BR
BER
d
Min
Watts
As defined by the QSFP+ MSA
Unit
Gb/s
Gb/s
Notes
Parameter
Module Form Factor
Maximum Aggregate Data Rate
Maximum Data Rate per Lane
Protocols Supported
Higher bit rates may be supported.
Please contact Finisar.
Electrical Interface and Pin-out
Maximum Power Consumption
Management Interface
Pin-out as defined by the
QSFP+ MSA
Data Rate Specifications
Bit Rate per Lane
Bit Error Ratio
Link distance on SMF-28
U
U
Typ
Max
10,313
10
-12
10
Units
Mb/sec
kilometers
Ref.
1
2
3
Notes:
1. Compliant with 40GBASE-LR4 and XLPPI per IEEE 802.3ba. Compatible with 1/10 Gigabit Ethernet
and 1/2/4/8/10G Fibre Channel.
2. Tested with a PRBS 2
31
-1 test pattern.
3. Per 40GBASE-LR4, IEEE 802.3ba
Finisar Corporation October 2015
Rev C1
Page 3
FTL4C1QL1L Product Specification
III.
1B
Absolute Maximum Ratings
Symbol
Vcc1,
VccTx,
VccRx
T
S
T
OP
RH
DT
Min
-0.5
Typ
Max
3.6
Unit
V
C
C
%
dBm
Ref.
Parameter
Maximum Supply Voltage
Storage Temperature
Case Operating Temperature
Relative Humidity
Damage Threshold, per Lane
Notes:
1. Non-condensing.
U
U
-40
15
0
3.4
85
60
85
1
IV.
1B
Electrical Characteristics
(T
OP
= 0 to 70C, V
CC
= 3.1 to 3.47 Volts)
Symbol
Vcc1,
VccTx,
VccRx
Icc
Min
3.1
Typ
Max
3.47
1.13
2000
VinT
Vin,pp
-0.3
120
50
15
Per IEEE P802.3ba,
Section 86A.4.1.1
0.17
0.29
0.07
0.11, 0.31
95, 350
-0.3
200
300
400
600
4.0
400
600
550
800
1200
7.5
5
Per IEEE P802.3ba,
Section 86A.4.2.1
Per IEEE P802.3ba,
Section 86A.4.2.2
28
0.42
0.65
0.29, 0.5
150, 425
4.0
1200
Unit
V
A
ms
V
mVpp
mV
mV
dB
UI
UI
UI
UI
mV
V
mVpp
mV
%
dB
dB
ps
UI
UI
UI
mV
4
4
4
Ref.
Parameter
Supply Voltage
Supply Current
Link turn-on time
Transmit turn-on time
Transmitter (per Lane)
Single ended input voltage tolerance
Differential data input swing
Differential input threshold
AC common mode input voltage tolerance
(RMS)
Differential input return loss
J2 Jitter Tolerance
J9 Jitter Tolerance
Data Dependent Pulse Width Shrinkage
Eye mask coordinates {X1, X2
Y1, Y2}
Receiver (per Lane)
Single-ended output voltage
Differential data output swing
AC common mode output voltage (RMS)
Termination mismatch at 1 MHx
Differential output return loss
Common mode output return loss
Output transition time, 20% to 80%
J2 Jitter output
J9 Jitter output
Eye mask coordinates #1 {X1, X2
Y1, Y2}
Finisar Corporation October 2015
2
3
Jt2
Jt9
DDPWS
5
Vout,pp
6, 7
Jo2
Jo9
5
Rev C1
Page 4
FTL4C1QL1L Product Specification
Power Supply Ripple Tolerance
PSR
50
mVpp
Notes:
1. Maximum total power value is specified across the full temperature and voltage range.
2. From power-on and end of any fault conditions.
3. After internal AC coupling. Self-biasing 100 differential input.
4. 10 MHz to 11.1 GHz range.
5. Hit ratio = 5 x 10E-5.
6. AC coupled with 100 differential output impedance.
7. Output voltage is settable in 4 discrete steps via I2C. Default is 400 – 800 mV.
U
U
V.
2B
Optical Characteristics
(T
OP
= 0 to 70C, V
CC
= 3.1 to 3.47 Volts)
Parameter
Symbol
Min
Typ
Max
10.3125
1264.5 – 1277.5
1284.5 – 1297.5
1304.5 – 1317.5
1324.5 – 1337.5
P
OUT
TxOMA
TXP
x
ER
SSR
min
-4.0
-7.0
3.5
30
8.3
3.5
2.3
Unit
GBd
nm
Ref.
1
Transmitter
Signaling Speed per Lane
Lane center wavelengths (range)
Total Average Launch Power
Transmit OMA per Lane
Average Launch Power per Lane
Optical Extinction Ratio
Sidemode Suppression ratio
Average launch power of OFF
transmitter, per lane
Relative Intensity Noise
Optical Return Loss Tolerance
Transmitter Reflectance
Transmitter eye mask definition {X1,
X2, X3, Y1, Y2, Y3}
Receiver
Signaling Speed per Lane
Lane center wavelengths (range)
Receive Power (OMA) per Lane
Average Receive Power per Lane
Receiver Sensitivity (OMA) per Lane
Stressed Receiver Sensitivity (OMA)
per Lane
Damage Threshold per Lane
Return Loss
Vertical eye closure penalty, per lane
Receive electrical 3 dB upper cutoff
frequency, per lane
LOS De-Assert
LOS Assert
LOS Hysteresis
dBm
dBm
dBm
dB
dB
dBm
dB/Hz
dB
dB
GBd
nm
2
-30
RIN
-128
20
-12
{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}
10.3125
1264.5 – 1277.5
1284.5 – 1297.5
1304.5 – 1317.5
1324.5 – 1337.5
RxOMA
RXP
x
Rxsens
SRS
P
MAX
RL
-13.7
3.5
2.3
-11.5
-9.6
3.4
-26
1.9
12.3
LOS
D
LOS
A
-15
-28
1
3
4
dBm
dBm
dBm
dBm
dBm
dB
dB
GHz
dBm
dBm
dB
5
Finisar Corporation October 2015
Rev C1
Page 5
