Lightem LSFP+1310CG-LR 10Gbs 1310nm Singlemode SFP+

TELECOM / DATACOM SYSTEMS
Lightem LSFP+1310CG-LR
10Gbs 1310nm Singlemode SFP+ Transceiver
Features
Up to 11.1Gbps Data Links
Maximum link length of 2km SMF
Power dissipation < 1W
1310nm FP transmitter, PIN photo-detector
Metal enclosure, for lower EMI
2-wire interface with integrated Digital Diagnostic monitoring
Hot-pluggable SFP+ footprint
Specifications compliant with SFF 8472
Compliant with SFP+ MSA with LC connector
Single 3.3V power supply
Operating Case Temperature - Commercial: -5ºC to +70ºC
Industrial: -40°C to +85°C
Applications
10GBASE-LR
Standard
Compliant to SFP+ SFF-8431
Compliant to 802.3aq 10GBASE-LRM.
RoHS Compliant.
Absolute Maximum Ratings
Parameter
Storage Temperature
Relative Humidity
Power Supply Voltage
Signal Input Voltage
Symbol
Ts
RH
VCC
Min.
-40
5
-0.3
Vcc-0.3
Typ.
-
Max.
85
95
4
Vcc+0.3
Unit
ºC
%
V
V
Note
Recommended Operating Conditions
Parameter
Case Operating Temperature
Power Supply Voltage
Power Supply Current
Data Rate
Transmission Distance
Coupled fiber
Symbol
Tcase
Tcase
VCC
ICC
BR
TD
Min.
-5
-40
3.14
-
Typ.
3.3
10.3125
-
Max.
+70
+85
3.47
300
220
Single mode fiber
Unit
ºC
ºC
V
mA
Gbps
m
Note
Commercial grade
Industrial grade
SMF
TELECOM / DATACOM SYSTEMS
Optical Characteristics
Parameter
Transmitter
Average Launch Power
Optical Wavelength
Optical Extinction Ratio
Side Mode Supression Ratio
RIN
Output Eye Mask
Receiver
Receiver Sensitivity@10.3125G
Input Saturation Power (Overload)
Wavelength Range
LOS De -Assert
LOS Assert
LOS Hysteresis
Symbol
Min
POUT
λ
ER
SMSR
RIN
-6.5
1290
3.5
30
Sen
Psat
λC
LOSD
LOSA
Typ
Max
Unit
NOTE
0.5
1330
dBm
nm
dB
dB
dB/Hz
1
1310
dBm
dBm
nm
dBm
dBm
dB
2
-128
Compliant with IEEE 802.3aq
-10
1.5
1260
1350
-14
-30
0.5
Notes:
1. Average power figures are informative only, per IEEE802.3aq
2. Conditions of stressed receiver tests per IEEE802.3aq.
Electrical Characteristics
Parameter
Supply Voltage
Supply Current
Transmitter
Input differential impedance
Single ended data input swing
Transmit Disable Voltage
Transmit Enable Voltage
Transmit Disable Assert Time
Receiver
Differential data output swing
Data output rise time
Data output fall time
LOS Fault
LOS Normal
Power Supply Rejection
Symbol
Vcc
Icc
Min
3.14
Typ
3.3
Max
3.46
300
Unit
V
mA
NOTE
Ω
mV
V
V
us
1
mV
ps
ps
V
V
mVpp
3
4
4
5
5
6
100
Rin
Vin,pp
VD
VEN
180
Vcc–1.3
Vee
700
Vcc
Vee+ 0.8
10
Vout,pp
tr
tf
VLOS fault
VLOS norm
PSR
300
30
30
Vcc–1.3
Vee
100
850
VccHOST
Vee+0.8
2
Notes:
1.Connected directly to TX data input pins. AC coupled thereafter.
2.Or open circuit.
3.Into 100 ohms differential termination.
4.These are unfiltered 20-80% values
5.Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
6.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.
TELECOM / DATACOM SYSTEMS
Pin Descriptions
Pin out of Connector Block on Host Board
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Symbol
VEET
T FAULT
T DIS
SDA
SCL
MOD_ABS
RS0
LOS
RS1
VEER
VEER
RDRD+
VEER
VCCR
VCCR
VEER
TD+
TDVEER
Name/Description
Transmitter Ground (Common with Receiver Ground)
Transmitter Fault.
Transmitter Disable. Laser output disabled on high or open.
2-wire Serial Interface Data Line
2-wire Serial Interface Clock Line
Module Absent. Grounded within the module
Rate Select 0
Loss of Signal indication. Logic 0 indicates normal operation.
No connection required
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)
NOTE
1
2
3
4
4
4
5
6
1
1
1
1
1
1
Notes:
1.Circuit ground is internally isolated from chassis ground.
2.TFAULT is an open collector/drain output, which should be pulled up with a 4.7k – 10k Ohms resistor on the host board if intended for use.
Pull up voltage should be between 2.0V to Vcc + 0.3V.A high output indicates a transmitter fault caused by either the TX bias current
or the TX output power exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the output is
pulled to <0.8V.
3.Laser output disabled on TDIS >2.0V or open, enabled on TDIS<0.8V.
4.Should be pulled up with 4.7kΩ- 10kΩ host board to a voltage between 2.0V and 3.6V. MOD_ABS pulls line low to indicate module is
plugged in.
5.Internally pulled down per SFF-8431 Rev 4.1.
6.LOS is open collector output. It should be pulled up with 4.7kΩ – 10kΩ on host board to a voltage between 2.0V and 3.6V. Logic 0
indicates normal operation; logic 1 indicates loss of signal.
TELECOM / DATACOM SYSTEMS
Digital Diagnostic Functions
LSFP+1310CG-LR transceivers support the 2-wire serial communication protocol as defined in the SFP+ MSA.
The standard SFP serial ID provides access to identification information that describes the transceiver’s capabilities, standard interfaces,
manufacturer, and other information.
Additionally, Lightem SFP+ transceivers provide a unique enhanced digital diagnostic monitoring interface, which allows real-time
access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical
power and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when
particular operating parameters are outside of a factory set normal range.
The SFP+ MSA defines a 256-byte memory map in EEPROM that is accessible over a 2-wire serial interface at the 8 bit address 1010000X
(A0h).The digital diagnostic monitoring interface makes use of the 8 bit address 1010001X (A2h), so the originally defined serial ID memory
map remains unchanged.
The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the
transceiver, which is accessed through a 2-wire serial interface. When the serial protocol is activated,the serial clock signal (SCL, Mod Def
1) is generated by the host. The positive edge clocks data into the SFP transceiver into those segments of the E2PROM that are not
write-protected. The negative edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def 2) is bi-directional for serial
data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are
organized as a series of 8-bit data words that can be addressed individually or sequentially.
Host - Transceiver Interface Block Diagram
TELECOM / DATACOM SYSTEMS
Outline Dimensions
Comply to SFF-8432 rev. 5.0, the improved Pluggable form factor specification.
Regulatory Compliance
Feature
Electrostatic discharge(ESD)
Electromagnetic Interference (EMI)
Laser Eye Safety
Component Recognition
ROHS
EMC
Reference
IEC/EN 61000-4-2
FCC Part 15 Class B EN 55022 Class B (CISPR 22A)
FDA 21CFR 1040.10, 1040.11 IEC/EN 60825-1,2
IEC/EN 60950, UL
2002/95/EC
EN61000-3
Ordering Information
PN: LSFP+1310CG-LR-y
y - optional Commercial grade option; C eg: LSFP+1310CG-LR-C
optional Industrial grade option; H eg: LSFP+1310CG-LR-H
Performance
Compatible with standards
Compatible with standards
Class 1 laser product
Compatible with standards
Compatible with standards
Compatible with standards
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