1
Technical Data Sheet
August 2002
FIBEROPTICS DIVISION
TR137FA-0D30S
622Mbps 1310nm Small Form Factor Pluggable(SFP)
LC Duplex Single Mode Transceiver
Features
Links of 15km with 9/125µm single mode fiber
1.3µm InGaAsP MQW FP laser
Highly sensitive InGaAs PIN Photodiode
Operating temperature range of -40~85
°C
Single +3.3V power supply
Supports serial ID
Fully compatible MSA with LC duplex
Receptacle
AC coupled input and output data signal
TTL Loss of Signal (LOS)
Digital monitoring Function (LD bias current, LD power, PD received power, Temperature,
and applied bias voltage)
Applications
SONET/SDH equipment interconnect, SONET OC-12 / SDH STM-4 rate, and Inter/intra-
office ATM/SONET links
Product Code
Product Code
TR137FA-0D30S
Extinction Ratio
≥8.2dB
Output Power
-8 to -15dBm
Distance
15Km
2
Description
Samsung's
TR137FA-0D30S
of small form factor pluggable transceiver are uncooled
transceiver modules operated over the temperature range of -40°C to 85°C. These
transceiver modules are designed for single mode fiber and operate at a nominal
wavelength of 1300nm. They are incorporated with a high performance optical
subassembly (OSA), a reliable circuit board (PCB) and a low cost plastic package.
The transmitter section of
TR137FA-0D30S
is 1.3µm InGaAsP MQW Fabry Perot (FP)
laser diode. The receiver section uses a highly sensitive InGaAs PIN photodiode.
Transceiver also conforms to the industry SFP Multi-source agreement (MSA). For
the good EMI performance, this transceiver uses the metal cover.
This module will meet the growing demand on the optical network unit (ONU) for for
access network and local area network (LAN) for SONET OC-12 and SDH STM-4.
Pin Information
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Symbol
VeeT
TX Fault
TX Disable
MOD_DEF2
MOD_DEF1
MOD_DEF0
Rate Select
Los
VeeR
VeeR
VeeR
RD-
RD+
VeeR
VccR
VccT
VeeT
TD+
TD-
VeeT
Sequence
1
3
3
3
3
3
3
3
1
1
1
3
3
1
2
2
1
3
3
1
Type
Ground
Signal Out
Signal In
Input/Output
Input/Output
Input/Output
Not
Connected
Signal Out
Ground
Ground
Ground
Data Out
Data Out
Ground
Power
Power
Ground
Data In
Data In
Ground
Functional Description
Transmitter signal ground
Transmitter fault indication
Transmitter disable
Module definition 2
Module definition 1
Module definition 0
Select between full or reduced receiver
bandwidth
Loss of signal
Receiver ground
Receiver ground
Receiver ground
Received data inverted output
Received data non-inverted output
Receiver ground
+3.3V Receiver power supply
+3.3V Transmitter power supply
Transmitter ground
Transmitter data non-inverted output
Transmitter data inverted output
Transmitter ground
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Notes:
1)
TX Fault
is an open collector/drain output, which should be pulled up with a 4.7k – 10kΩ
resistor on the host board. When high, output indicates a laser fault of some kind. Low
indicates normal operation. In the low state, the output will be pulled to < 0.8V.
2)
TX disable
is an input that is used to shut down the transmitter optical output. It is pulled
up within the module with a 4.7k – 10kΩ resistor. Its states are:
Low (0 – 0.8V): Transmitter on
(>0.8, < 2.0V): Undefined
High (2.0 – 3.465V): Transmitter Disabled
Open: Transmitter Disabled
3)
Mod-Def 0,1,2.
These are the module definition pins. They should be pulled up with a 4.7k
– 10kΩresistor on the host board. The pull-up voltage shall be VccT or VccR.
Mod-Def 0 is grounded by the module to indicate that the module is present Mod-Def 1 is the
clock line of two wire serial interface for serial ID Mod-Def 2 is the data line of two wire serial
interface for serial ID.
4)
LOS(Loss of Signal)
is an open collector/drain output, which should be pulled up with a
4.7k – 10kΩresistor. When high, this output indicates the received optical power is below the
worst-case receiver sensitivity. Low indicates normal operation. In the low state, the output
will be pulled to < 0.8V.
5)
VeeR
and
VeeT
may be internally connected within the SFP module.
6)
Rx_Data-/+:
These are the differential receiver outputs. They are AC coupled
100Ωdifferential lines should be terminated with 100Ω(differential) at the user SERDES. The
AC coupling is done inside the module and is thus not required on the host board. The
voltage swing on these lines will be between 600 and 900 mV differential when properly
terminated.
7)
VccR
and
VccT
are the receiver and transmitter power supplies. They are defined as
3.3V±5% at the SFP connector pin. Maximum supply current is 200 mA. Recommended host
board power supply filtering is shown below. Inductors with DC resistance of less than 1Ω
should be used in order to maintain the required voltage at the SFP input pin with 3.3V. When
the recommended supply filtering network is used, hot plugging of the SFP transceiver
module will result in an inrush current of no more than 30 mA greater than the steady state
value. VccR and VccT may be internally connected within the SFP transceiver module.
8)
Tx_Data-/+:
These are the differential transmitter inputs. They are AC-coupled, differential
lines with 100Ω termination inside the module. The AC coupling is done inside the module
and is thus not required on the host board. The inputs will accept differential swings of 200 –
4
1800 mV, though it is recommended that values between 500 and 1200 mV differential be
used for best EMI performance
.
Figure 1. Recommended Host Board Supply Filtering Network
Figure 2. Example SFP Host Board Schematics
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In order to prevent unwanted reflections between system and transceiver, it is
necessary to have both a 50Ω impedance matched transmission line as well as a
50Ω termination load. The system board differential pair transmission lines must be
designed with the same length.
The transmitter internally includes a 100Ω differential termination for the two
differential input lines (TD+, TD-). Therefore, additional 50Ω terminations should not
be externally connected to the transmitter-input lines. The transmitter is disabled
when the TX disable is TTL high and enabled when TTL low. If this feature is not
needed, it should be connected to system ground.
Outline Diagram
Dimensions are in millimeters (inches).
Tolerances : x.xx ± 0.025mm
x.x ± 0.05mm, unless otherwise specified
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