Multi-rate OC-48/STM-16 LR-2/L-16.2 SFP
DWDM Transceivers with Digital Diagnostics
TRD148xL2/E2/X2-G
Product Description
The TRD148xL2/E2/X2-G DWDM SFP series of multi-rate fiber optic
transceivers with digital diagnostics monitoring functionality pro-
vide a quick and reliable interface for long reach applications. Diag-
nostics monitoring functionality (alarm and warning features) is inte-
grated into the design via an I
2
C serial interface per the Multi-Source
Agreement (MSA) on DWDM SFP transceivers.
Products under this series are compatible with SONET/SDH standards
for OC-48/STM-16 (2.67Gb/s) Forward Error Correction and OC-48/
STM-16 (2.488Gb/s) applications, OC-3/STM-1 (156Mb/s) and OC-12/
STM-4 (622Mb/s) applications; Gigabit Ethernet LX (1.25Gb/s) appli-
cations per IEEE 802.3; and Fibre Channel 200-SM-LC-L (2.125Gb/s)
and 100-SMLC-L (1.062Gb/s) applications per FC-PI standards. The
transmitter incorporates a highly reliable 1550nm DFB laser with an
operating wavelength in full compliance with 100GHz (0.8nm) spac-
ing per ITU-grid. All transceivers are Class I Laser products per U.S.
FDA/CDRH and international IEC-60825 standards.
The TRD148xL2/E2/X2-G DWDM transceivers connect to standard
20-pad SFP connectors for hot plug capability. This allows the system
designer to make configuration changes or maintenance by simply
plugging in different types of transceivers without removing the
power supply from the host system.
The transceivers have blue bail-type latches, which offer an easy and
convenient way to release the modules. The latch is compliant with
the SFP MSA.
The transmitter and receiver DATA interfaces are AC-coupled internal-
ly. LV-TTL Transmitter Disable control input and Loss of Signal (LOS)
output interfaces are also provided. The transceiver operate from a
single +3.3V power supply over operating case temperature range
of -5°C to +70°C (Commerical), -5°C to +85°C (Extended) or -40°C to
+85°C (Industrial). The housing is made of metal designed for opti-
mum thermal performance and electromagnetic compatibility.
Pb
Features
Compliant with DWDM SFP MSA
Multi-rate Operations from 125Mb/s to 2.67Gb/s
1550nm DFB Laser Transmitter & APD Receiver
Transmission Distance of 80km, 120km or 200km
Compliant with G.692
100GHz Channel Spacing
Optical Link Power Budget of 28dB or 32dB
Minimum
Digital Diagnostics through Serial Interface
Internal Calibration for Digital Diagnostics
Eye Safe (Class I Laser Safety)
Hot-pluggable
TX Fault & Loss of Signal Outputs
TX Disable Input
Fully RoHS Compliant
Absolute Maximum Ratings
Parameter
Storage Temperature
Commercial
Operating Case Temperature
1
Supply Voltage
Maximum Input Optical Power (30 seconds max.)
Input Voltage
1
2
Symbol
T
ST
Extended
Industrial
2
V
CC
P
in, max
V
IN
T
OP
Minimum
- 40
-5
-5
- 40
0
-
0
Maximum
+ 85
+ 70
+ 85
+ 85
+ 4.5
+ 3.0
V
CC
Units
°C
°C
V
dBm
V
Measured on top side of SFP module at the front center vent hole of the cage.
-40°C is specified as ambient temperature.
An Oplink Company
S0219. Rev04. (web) 2012.06.18
TRD148xL2/E2/X2-G
Transmitter Performance Characteristics
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Parameter
Operating Data Rate
Average Optical Output Power
(50% duty cycle)
Extinction Ratio
2
Center Wavelength
3
Spectral Width (-20dB)
4
Transmitter OFF Power
Side Mode Suppression Ratio
Optical Rise/Fall Time (20% to 80%)
Relative Intensity Noise
Jitter Generation
Optical Output Eye
Specified through EOL.
Measured at 2.48832Gb/s, with 4th order Bessel Thomson filter
3
BOL: +/-0.05nm from ITU grid.
EOL: +/-0.1nm from ITU grid.
4
Measured with OSA and 0.1nm resolution bandwidth.
1
2
1
Symbol
B
Minimum
0.125
0
+ 3.0
8.2
-
-
30
-
-
-
Typical
-
-
-
-
Maximum
2.67
+ 4.0
+ 7.0
-
0.4
- 45.0
-
0.16
- 117
0.07
Units
Gb/s
dBm
dB
-
nm
dBm
dB
ns
dB/Hz
UIp-p
80km, 120km
200km
P
O
ER
λ
C
Δλ
20
P
OFF
SMSR
t
n
, t
f
RIN
JG
see Ordering Information Table
-
-
-
-
-
-
OC-48
Compliant with Telcordia GR-253-CORE and ITU-T Recommendation G.957
Receiver Performance Characteristics
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Parameter
Operating Data Rate
Receiver Sensitivity
(10
-10
BER)
2
Receiver Sensitivity
(10
-12
BER)
3
Receiver Sensitivity
with fiber
(10
-10
BER)
2
Receiver Sensitivity
with fiber
(10
-12
BER)
3
OC-3/12/48, 2.67Gb/s
2.125Gb/s, 1.25Gb/s,
1.062Gb/s, 0.125Gb/s
OC-3/12/48,
2.67Gb/s
2.125Gb/s,
1.25Gb/s,
1.062Gb/s,
0.125Gb/s
1600ps/nm
(80km)
2400ps/nm
(120km)
4000ps/nm
(200km)
1600ps/nm
(80km)
2400ps/nm
(120km)
4000ps/nm
(200km)
P
max
P
los+
P
los-
t
_loss_off
t
_loss_on
-
λ
-
- 8.0
-
- 45.0
-
2.3
0.5
1260
-
-
-
-
-
-
1.5
-
-
P
min
-
-
P
min
-
-
1
Symbol
B
P
min
P
min
Minimum
0.125
-
-
Typical
-
-
-
Maximum
2.67
- 28.0
- 28.0
- 26.0
- 26.0
- 25.0
- 26.0
- 26.0
- 25.0
-
- 28.0
-
100
100
-
1570
-27.0
Units
Gb/s
dBm
dBm
dBm
Maximum Input Power (10
-12
BER)
LOS Thresholds
LOS Timing Delay
LOS Hysteresis
Wavelength of Operation
Receiver Reflectance
Specified through EOL.
Measured with 2
23
-1 PRBS.
3
Measured with 2
7
-1 PRBS.
1
2
dBm
dBm
µs
dB
nm
dB
Increasing Light Input
Decreasing Light Input
Increasing Light Input
Decreasing Light Input
Oplink Communications, Inc
2
S0219. Rev04. (web) 2012.06.18
TRD148xL2/E2/X2-G
Transmitter Performance Characteristics
Parameter
Input Voltage Swing (TD+ & TD-)
1
Input HIGH Voltage (TX Disable)
2
Input LOW Voltage (TX Disable)
2
Output HIGH Voltage (TX Fault)
3
Output LOW Voltage (TX Fault)
3
1
2
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Minimum
0.5
2.0
0
2.0
0
Typical
-
-
-
-
-
Maximum
2.4
V
CC
0.8
V
CC
+ 0.3
0.8
Units
V
V
V
V
V
Symbol
V
PP-DIF
V
IH
V
IL
V
OH
V
OL
Differential peak-to-peak voltage.
There is an internal 4.7 to 10kΩ pull-up resistor to VccT.
3
Open collector compatible, 4.7 to 10kΩ pull-up resistor to Vcc (Host Supply Voltage).
Receiver Electrical Interface
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Parameter
Output Voltage Swing (RD+ & RD-)
1
Output HIGH Voltage (LOS)
2
Output LOW Voltage (LOS)
2
1
2
Symbol
V
PP-DIF
V
OH
V
OL
Minimum
0.37
2.0
0
Typical
-
-
-
Maximum
2.0
V
CC
+ 0.3
0.8
Units
V
V
V
Differential peak-to-peak voltage across external 100Ω load.
Open collector compatible, 4.7 to 10kΩ pull-up resistor to Vcc (Host Supply Voltage).
Electrical Power Supply Characteristics
Parameter
Power Supply Voltage
Supply Current
Commercial
Industrial, Extended
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Minimum
3.13
-
-
Typical
3.3
245
245
Maximum
3.47
350
430
Units
V
mA
Symbol
V
CC
I
CC
Module Definition
MOD_DEF(0)
pin 6
MOD_DEF(1)
pin 5
MOD_DEF(2)
pin 4
Interpretation by Host
TTL LOW
SCL
SDA
Serial module definition protocol
Electrical Pad Layout
20
19
18
17
16
15
14
13
12
11
TX GND
TD- (TX DATA IN-)
TD+ (TX DATA IN+)
TX GND
VccTX
VccRX
RX GND
RD+ (RX DATA OUT+)
RD- (RX DATA OUT-)
RX GND
Host Board Connector Pad Layout
1
2
3
4
5
6
7
8
9
10
TX GND
TX Fault
TX Disable
MOD_DEF(2)
MOD_DEF(1)
MOD_DEF(0)
NO CONNECTION
LOS
RX GND
RX GND
1
2
3
Toward
Bezel
20
19
18
17
16
15
14
13
12
11
Toward
ASIC
4
5
6
7
8
9
10
Top of Board
Bottom of Board
(as viewed thru top of board)
Oplink Communications, Inc
3
S0219. Rev04. (web) 2012.06.18
TRD148xL2/E2/X2-G
Host Board Termination & Coupling
Vcc
3.3V
1 µH coil or ferrite bead
(<0.2 Ω series resistance)
Vcc
3.3V
+
10
0.1
0.1
16
15
R
2
8
R
R
R
R
TX Fault
LOS
MOD_DEF(2)
MOD_DEF(1)
MOD_DEF(0)
+
10
0.1
SFP
4
5
100
6
50Ω line
50Ω line
12
TX Disable
50Ω line
TX DATA IN+
TX DATA IN-
50Ω line
3
18
19
13
RX DATA OUT+
to 50Ω load
RX DATA OUT-
to 50
Ωload
1, 9,10,11,14,17,20
R: 4.7 to 10kΩ
CAP Values in μF
Application Notes
Electrical interface:
All signal interfaces are compliant with the
SFP MSA specification. The high speed DATA interface is differential
AC-coupled internally with 0.1μF and can be directly connected to
a 3.3V SERDES IC. All low speed control and sense output signals
are open collector TTL compatible and should be pulled up with a
4.7 - 10kΩ resistor on the host board
Loss of Signal (LOS):
The Loss of Signal circuit monitors the level
of the incoming optical signal and generates a logic HIGH when an
insufficient photocurrent is produced.
TX Start-up:
During power up or hot plugging the DWDM SFP
module will initially set the TX to the correct operating temperature.
Depending on the ambient temperature this may take several
seconds to 1 minute. When the Tx has reached the required
temperature the Tx is switched on and active. At this point the Tx is
guaranteed to be within +/-0.2nm of the appropriate ITU wavelength
and will settle to +/-0.05nm within the time limit set by the MSA.
TX_Fault:
The output indicates LOW when the transmitter is
operating normally, and HIGH with a laser fault including laser
end-of-life. TX Fault is an open collector/drain output that should
be pulled up with a 4.7 - 10kΩ resistor on the host board. TX Fault
is latched per SFP MSA.
TX_Disable:
When the TX Disable pin is at logic HIGH, the
transmitter optical output is disabled (less than -45dBm).
Serial Identification and Monitoring:
The module definition of
SFP is indicated by the three module definition pins, MOD_DEF(0),
MOD_DEF(1) and MOD_DEF(2). Upon power up, MOD_DEF(1:2)
appear as NC (noconnection), and MOD_DEF(0) is TTL LOW. When
the host system detects this condition, it activates the serial protocol
(standard two-wire I
2
C serial interface) and generates the serial
clock signal (SCL). The positive edge clocks data into the EEPROM
segments of the SFP that are not write protected, and the negative
edge clocks data from the SFP.
The serial data signal (SDA) is for serial data transfer. The host
uses SDA in conjunction with SCL to mark the startand end of
serial protocol activation. The supported monitoring functions
are internal temperature, supply voltage, bias current, transmitter
power, average receiver signal, all alarms and warnings and software
monitoring of TX Fault/LOS. The device is internally calibrated.
The data transfer protocol and the details of the mandatory and
vendor specific data structures are defined in the MSA.
Power supply and grounding:
The power supply line shouldbe
well-filtered. All 0.1μF power supply bypass capacitors should be
as close to the transceiver module as possible.
Laser Safety:
All transceivers are Class I Laser products per
FDA/CDRH and IEC-60825 standards. They must be operated
under specified operating conditions.
Oplink Communications, Inc.
This product complies with
21 CFR 1040.10 and 1040.11
Meets Class I Laser Safety Requirements
Oplink Communications, Inc
4
S0219. Rev04. (web) 2012.06.18
TRD148xL2/E2/X2-G
Package Outline
2.224
56.50 REF
.601
15.25
.539
13.70
FRONT EDGE OF
TRANSCEIVER CAGE
.246
6.25 REF
.080
2
1.874
47.60REF
.335
8.50
.539 .004
13.7 0.1
.064
1.62
1.646
41.8
.006
0.15
.339
8.6 MAX
.375
9.53
1.772 .008
45 0.2
Dimensions in mm [inches]
Default tolerances:
X.XX 0.1 [.004]
X.X 0.25 [.01]
Ordering Information (80km)
Model Name
Commercial Temp.
-5°C to +70°C
Extended Temp.
-5°C to +85°C
Industrial Temp.
-40°C to +85°C
Center
Wavelength
(nm)
ITU
Frequency
(THz)
Wavelength
Reference
Distance
TRD148JL2C00061G
TRD148JL2C00060G
TRD148JL2C00059G
TRD148JL2C00058G
TRD148JL2C00057G
TRD148JL2C00056G
TRD148JL2C00055G
TRD148JL2C00054G
TRD148JL2C00053G
TRD148JL2C00052G
TRD148JL2C00051G
TRD148JL2C00050G
TRD148JL2C00049G
TRD148JL2C00048G
TRD148JL2C00047G
TRD148JL2C00046G
TRD148JL2C00045G
TRD148JL2C00044G
TRD148JL2E00061G
TRD148JL2E00060G
TRD148JL2E00059G
TRD148JL2E00058G
TRD148JL2E00057G
TRD148JL2E00056G
TRD148JL2E00055G
TRD148JL2E00054G
TRD148JL2E00053G
TRD148JL2E00052G
TRD148JL2E00051G
TRD148JL2E00050G
TRD148JL2E00049G
TRD148JL2E00048G
TRD148JL2E00047G
TRD148JL2E00046G
TRD148JL2E00045G
TRD148JL2E00044G
TRD148JL2I00061G
TRD148JL2I00060G
TRD148JL2I00059G
TRD148JL2I00058G
TRD148JL2I00057G
TRD148JL2I00056G
TRD148JL2I00055G
TRD148JL2I00054G
TRD148JL2I00053G
TRD148JL2I00052G
TRD148JL2I00051G
TRD148JL2I00050G
TRD148JL2I00049G
TRD148JL2I00048G
TRD148JL2I00047G
TRD148JL2I00046G
TRD148JL2I00045G
TRD148JL2I00044G
1528.77
1529.55
1530.33
1531.12
1531.90
1532.68
1533.47
1534.25
1535.04
1535.82
1536.61
1537.40
1538.19
1538.98
1539.77
1540.56
1541.35
1542.14
196.1
196.0
195.9
195.8
195.7
195.6
195.5
195.4
195.3
195.2
195.1
195.0
194.9
194.8
194.7
194.6
194.5
194.4
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
80km
80km
80km
80km
80km
80km
80km
80km
80km
80km
80km
80km
80km
80km
80km
80km
80km
80km
Oplink Communications, Inc
5
S0219. Rev04. (web) 2012.06.18
