Extended Reach Mul
ti-rate
OC-48/STM-16 LR-2/L-16.2
SFP CWDM Transceivers with Digital Diagnostics
TRPE48KE2 CWDM
Product Description
The TRPE48KE2 CWDM SFP series of multi-rate fiber optic transceivers
with digital diagnostics monitoring functionality provide a quick and
reliable interface for extended reach LR-2 applications. Diagnostics
monitoring functionality (alarm and warning features) is integrated
into the design via an I
2
C serial interface per the Multi-Source
Agreement (MSA) SFF-8472, Rev. 9.4.
Products under this series are compatible with SONET/SDH
standards for OC-48/STM-16 (2.488Gb/s) LR-2/L-16.2 extended
reach applications, OC-3/STM-1 (156Mb/s) and OC-12/STM-4
(622Mb/s) SR/I-1 and I-4 short reach applications; Gigabit Ethernet
LX (1.25Gb/s) applications per IEEE 802.3; and Fiber Channel 200-SM-
LC-L (2.125Gb/s) and 100-SM-LC-L (1.062Gb/s) applications per FC-PI
standards. The transceivers support data rates ranging from 2.67Gb/s
down to 125Mb/s and are available in eight (8) wavelengths: 1471nm,
1491nm, 1511nm, 1531nm, 1551nm, 1571nm, 1591nm and 1611nm.
The higher optical link power budget of 32dB is to accommodate
the wavelength multiplexing and de-multiplexing insertion losses.
All transceivers are Class I Laser products per U.S. FDA/CDRH and
international IEC-60825 standards.
The TRPE48KE2 CWDM 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 colored 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
internally. LV-TTL Transmitter Disable control input and Loss of Signal
(LOS) output interfaces are also provided.
The transceivers operate from a single +3.3V power supply over an
operating case temperature range of -5°C to +70°C (Commercial
Temp.) or -5°C to +85°C (Extended Temp.). The housing is made of
metal for EMI immunity.
Features
Distance up to 100km with Single Mode Fiber
Eight (8) Wavelength CWDM Transceivers
Compatible with SFP MSA
Compatible with SONET/SDH OC-48/STM-16
(2.488Gb/s) LR-2/L-16.2 Applications
Compatible with Gigabit Ethernet LX
Compatible with Fibre Channel 200-SM-LC-L and
100-SM-LC-L
Digital Diagnostics through Serial Interface
Internal Calibration for Digital Diagnostics
APD Receiver
Optical Link Power Budget of 32dB Minimum
Eye Safe (Class I Laser Safety)
Hot-pluggable
TX Fault & Loss of Signal Outputs and TX Disable
Input
Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Case Temperature
1
Supply Voltage
Maximum Input Optical Power (30 seconds max.)
Input Voltage
1
Symbol
T
ST
Commercial Temp.
Extended Temp.
T
OP
V
CC
P
in,max
V
IN
Minimum
- 40
-5
-5
0
-
0
Maximum
+ 85
+ 70
+ 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.
An Oplink Company
21737-0976, Rev.02
2012-01-09
TRPE48KE2 CWDM
Transmitter Performance Characteristics
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
All parameters guaranteed only at typical data rate
Parameter
Operating Data Rate
Average Optical Output Power (50% duty cycle)
Extinction Ratio
1471
1491
1511
Center Wavelength
1531
1551
1571
1591
1611
Spectral Width (-20dB)
Side Mode Suppression Ratio
Optical Rise/Fall Time (20% to 80%)
Relative Intensity Noise
Jitter Generation
Dispersion Penalty
1
Optical Output Eye
1
Symbol
B
P
O
ER
Minimum
0.125
1.0
8.2
1464.5
1484.5
1504.5
1524.5
1544.5
1564.5
1584.5
1604.5
Typical
-
-
-
1471
1491
1511
1531
1551
1571
1591
1611
-
-
-
-
-
-
Maximum
2.67
+ 5.0
-
1477.5
1497.5
1517.5
1537.5
1557.5
1577.5
1597.5
1617.5
1.0
-
0.16
- 117
0.07
2.5
Units
Gb/s
dBm
dB
λ
C
nm
Δλ
20
SMSR
t
r
, t
f
RIN
JG
-
-
30.0
-
--
-
--
nm
dB
ns
dB/Hz
UIp-p
dB
Compliant with Telcordia GR-253-CORE and ITU-T Recommendation G.957
Specified at 2000ps/nm dispersion over G.652/G.654 fiber with center wavelength range of 1464.5-1617.5nm.
Receiver Performance Characteristics
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
All parameters guaranteed only at typical data rate
Parameter
Operating Data Rate
1
Receiver Sensitivity
(10
-10
BER)
1
Receiver Sensitivity
(10
-12
BER)
2
OC-3/12/48, 2.67Gb/s
2.125Gb/s, 1.25Gb/s,
1.062Gb/s, 0.125Gb/s
Increasing Light Input
Decreasing Light Input
Increasing Light Input
Decreasing Light Input
Symbol
B
P
min
P
min
P
max
P
los+
P
los-
t_loss_off
t_loss_on
-
λ
-
Minimum
0.125
- 31.0
- 31.0
- 8.0
-
- 45.0
-
2.3
0.5
1260
-
Typical
-
-
-
-
-
-
-
-
1.5
-
-
Maximum
2.67
-
-
-
- 31.0
-
100
100
6.0
1620
- 27.0
Units
Gb/s
dBm
dBm
dBm
dBm
μs
dB
nm
dB
Maximum Input Optical Power (10
-12
BER)
LOS Thresholds
LOS Timing Delay
LOS Hysteresis
Wavelength of Operation
Receiver Reflectance
Measured with 2
23
-1 PRBS.
2
Measured with 2
7
-1 PRBS.
1
Oplink Communications, Inc
2
21737-0976, Rev.02
2012-01-09
TRPE48KE2 CWDM
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
0.35
2.0
0
2.0
0
Typical
-
-
-
-
-
Maximum
1.75
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
Parameter
Output Voltage Swing (RD+ & RD-)
1
Output HIGH Voltage (LOS)
2
Output LOW Voltage (LOS)
2
1
2
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V))
Symbol
V
PP-DIF
V
OH
V
OL
Minimum
0.40
V
CC
- 1.3
0
Typical
-
-
-
Maximum
1.75
V
CC
+ 0.3
0.5
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
Supply Voltage
Supply Current
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V))
Minimum
3.13
-
Typical
3.3
210
Maximum
3.47
350
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
20
19
18
17
16
15
14
13
12
11
Toward
ASIC
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
4
5
6
7
8
9
10
Top of Board
Bottom of Board
(as viewed thru top of board)
Oplink Communications, Inc
3
21737-0976, Rev.02
2012-01-09
TRPE48KE2 CWDM
Example of SFP host board schematic
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
4
5
6
R
R
R
R
TX Fault
LOS
MOD_DEF(2)
MOD_DEF(1)
MOD_DEF(0)
+
10
0.1
TX Disable
50Ω line
TX DATA IN+
TX DATA IN-
50Ω line
3
18
19
TRPE48KE2
50Ω line
13
50Ω line
12
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 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_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 in non-latching (automatically deasserts
when fault goes away).
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).
Laser Safety
Laser Safety:
All transceivers are Class I Laser products per FDA/
CDRH and IEC-60825 standards. They must be operated under
specified operating conditions.
Upon power up, MOD_DEF(1:2) appear as NC (no connection),
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 start and
end of serial protocol activation. The supported monitoring
functions are temperature, 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 SFP
MSA, and SFF-8472, Rev. 9.4
Power Supply and Grounding:
The power supply line should
be well-filtered. All 0.1μF power supply bypass capacitors
should be as close to the transceiver module as possible.
Oplink Communications, Inc.
DATE OF MANUFACTURE:
This product complies with
21 CFR 1040.10 and 1040.11
Meets Class I Laser Safety Requirements
Oplink Communications, Inc
4
21737-0976, Rev.02
2012-01-09
TRPE48KE2 CWDM
Mechanical Package
41.80
[1.646]
13.62
[.536]
14.94
[.588]
45.00
[1.772]
6.25
[.246]
1.99
[.0 7 8 ]
[.257]
6.54
0.60
[.0 2 4 ]
[.470]
11.94
[.362]
9.20
10.45
46335 Landing Pkwy Fremont, CA 94538 Tel: (510) 933-7200 Fax: (510) 933-7300 Email: Sales@Oplink.com • www.oplink.com
2.29
13.80
[.543]
[.090]
1.49
[.0 5 9 ]
[.411]
2.50
[.0 9 8 ]
0.60
[.0 2 4 ]
0.45
[.0 1 8 ]
Dimensions in inches [mm]
Default tolerances:
.xxx = + .005”, .xx = + .01”
Ordering Information
Model Name
32dB Link Budget (100km Distance)
1
- 5°C to +70°C
- 5°C to +85°C
Nominal Wavelength
Latch Color
TRPE48KE2C00010
TRPE48KE2C00020
TRPE48KE2C00030
TRPE48KE2C00040
TRPE48KE2C00050
TRPE48KE2C00060
TRPE48KE2C00070
TRPE48KE2C00080
1
TRPE48KE2E00010
TRPE48KE2E00020
TRPE48KE2E00030
TRPE48KE2E00040
TRPE48KE2E00050
TRPE48KE2E00060
TRPE48KE2E00070
TRPE48KE2E00080
1471nm
1491nm
1511nm
1531nm
1551nm
1571nm
1591nm
1611nm
Gray
Violet
Blue
Green
Yellow
Orange
Red
Brown
The indicated transmission distance is for guidelines only, not guaranteed. The exact distance is dependent on the fiber loss, connector and
splice loss, and allocated system penalty. Longer distances can be supported if the optical link power budget is satisfied.
Oplink Communications, Inc. reserves the right to make changes in equipment design or specifications without notice. Information supplied by Oplink Commu-
nications, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Oplink Communications, Inc. for its use nor for any infringements
of third parties, which may result from its use. No license is granted by implication or otherwise under any patent right of Oplink Communications, Inc.
© 2012, Oplink Communications, Inc.
21737-0976, Rev.02
5
[.333]
8.46
2012-01-09
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