Optoway
FEATURES
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SPS-3131G
1
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SPS-3131G
(RoHS Compliant)
3.3V / 1310 nm / 125/155 Mbps LC SFP SINGLE-MODE TRANSCEIVER
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DESCRIPTION
Hot-Pluggable SFP Footprint LC Optical Transceiver
Small Form-Factor Pluggable (SFP) MSA compatible
Compliant with SONET OC-3 IR / SDH STM-1 (S-1.1)
AC/AC Coupling according to MSA
Distance up to 30 km
Single +3.3 V Power Supply
RoHS Compliant
0 to 70
o
C Operating Case Temperature
Class 1 Laser International Safety Standard IEC-60825
Compliant
APPLICATIONS
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ATM Switches and Routers
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SONET / SDH Switch Infrastructure
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Fast Ethernet Applications
The SPS-3131G series single mode transceivers is small
form factor pluggable module for bi-directional serial
optical data communications such as SONET OC-3 / SDH
STM-1 and Fast Ethernet. It is with the SFP 20-pin
connector to allow hot plug capability. This module is
designed for single mode fiber and operates at a nominal
wavelength of 1310 nm. The transmitter section uses a
multiple quantum well laser and is a class 1 laser
compliant according to International Safety Standard
IEC-60825. The receiver section uses an integrated InGaAs
detector preamplifier (IDP) mounted in an optical header
and a limiting post-amplifier IC.
LASER SAFETY
This single mode transceiver is a Class 1 laser product. It
complies with IEC-60825 and FDA 21 CFR 1040.10 and
1040.11. The transceiver must be operated within the
specified temperature and voltage limits. The optical ports
of the module shall be terminated with an optical connector
or with a dust plug.
Distance
(km)
30
Wavelength Package
(nm)
1310
LC SFP
Temp.
(
o
C)
0 to 70
TX Power RX Sens.
RoHS
(dBm)
(dBm) Compliant
-8 to -14
-34
Yes
ORDER INFORMATION
P/No.
SPS-3131G
Bit Rate
(Mb/s)
125 / 155
SONET
/SDH
IR-1/S-1.1
Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Case Temperature
Power Supply Voltage
Symbol
Tstg
Topr
Vcc
Min
-40
0
-0.5
Max
85
70
3.6
Units
o
C
o
C
V
Notes
Recommended Operating Conditions
Parameter
Power Supply Voltage
Operating Case Temperature
Power Supply Current
Data Rate
Symbol
Vcc
Topr
I
CC (TX+RX)
Min
3.1
0
Typ
3.3
200
125/155
Max
3.5
70
300
200
Units / Notes
V
o
C
mA
Mb/s
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OPTOWAY TECHNOLOGY INC.
No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
1/1/2008 V2.0
Optoway
Transmitter Specifications (0
o
C < Topr < 70
o
C, 3.1V < Vcc < 3.5V)
Parameter
Symbol
Min
Typ
Max
Units
Optical
Optical Transmit Power
Po
-14
---
-8
dBm
Output Center Wavelength
1261
1310
1360
nm
λ
Output Spectrum Width
---
---
5
nm
∆λ
Extinction Ratio
E
R
8.2
---
---
dB
Output Eye
Compliant with Bellcore TR-NWT-000253 and ITU recommendation G.957
Optical Rise Time
t
r
2
ns
Optical Fall Time
t
f
2
ns
Relative Intensity Noise
RIN
-120
dB/Hz
Electrical
Data Input Current
–
Low
I
IL
-350
µA
Data Input Current
–
High
I
IH
350
µA
Differential Input Voltage
V
IH
- V
IL
0.5
2.4
V
TX Disable Input Voltage
–
Low
T
DIS, L
0
0.5
V
TX Disable Input Voltage
–
High
T
DIS, H
2.0
Vcc
V
TX Disable Assert Time
T
ASSERT
10
µs
TX Disable Deassert Time
T
DEASSERT
1
ms
TX Fault Output Voltage -- Low
T
FaultL
0
0.8
V
TX Fault Output Voltage -- High
T
FaultH
2.0
Vcc+0.3
V
1. Output power is power coupled into a 9/125
µm
single mode fiber.
2. There is an internal 4.7K to 10K ohm pull-up resistor to VccTX.
3. Open collector compatible, 4.7K to 10K ohm pull-up to Vcc (Host Supply Voltage).
SPS-3131G
Notes
1
RMS (σ)
2
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10 % to 90% Values
10 % to 90% Values
Peak-to-Peak
2
2
3
3
Receiver Specifications (0
o
C < Topr < 70
o
C, 3.1V < Vcc < 3.5V)
Parameter
Symbol
Min
Typ
Max
Units
dBm
dBm
dBm
dBm
dB
nm
V
V
V
Notes
4
4
Transition: low to high
Transition: high to low
Optical
Sensitivity
Sens
-34
Maximum Input Power
Pin
-8
Signal Detect -- Asserted
Pa
---
-34
Signal Detect -- Deasserted
Pd
-47
---
---
Signal detect -- Hysteresis
1.0
---
Wavelength of Operation
1200
---
1600
Electrical
Differential Output Voltage
V
OH
–
V
OL
0.6
2.0
Output LOS Voltage -- Low
V
OL
0
0.8
Output LOS Voltage -- High
V
OH
2.0
Vcc+0.3
23
4. Measured at 2 -1 PRBS at BER 1E-10.
5. Open collector compatible, 4.7K to 10K ohm pull-up to Vcc (Host Supply Voltage).
5
5
***********************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC.
No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
1/1/2008 V2.0
Optoway
CONNECTION DIAGRAM
SPS-3131G
3
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PIN
1
2
3
4
5
6
7
8
9
10
Signal Name
TX GND
TX Fault
TX Disable
MOD-DFE2
MOD-DEF1
MOD-DEF0
N/C
LOS
RX GND
RX GND
Description
Transmitter Ground
Transmitter Fault Indication
Transmitter Disable (Module disables
on high or open)
Modulation Definition 2
–
Two wires
serial ID Interface
Modulation Definition 1
–
Two wires
serial ID Interface
Modulation Definition 0
–
Ground in
Module
Not Connected
Loss of Signal
Receiver Ground
Receiver Ground
PIN
11
12
13
14
15
16
17
18
19
20
Signal Name
Description
RX GND
Receiver Ground
RX DATA OUT- Inverse Receiver Data Out
RX DATA OUT+ Receiver Data Out
RX GND
Vcc RX
Vcc TX
TX GND
TX DATA IN+
TX DATA IN-
TX GND
Receiver Ground
Receiver Power
–
3.3V±5%
Transmitter Power
–
3.3V±5%
Transmitter Ground
Transmitter Data In
Inverse Transmitter Data In
Transmitter Ground
Module Definition
Module Definition
4
MOD-DEF2
PIN 4
SDA
MOD-DEF1
PIN 5
SCL
MOD-DEF0
PIN 6
LV-TTL Low
Interpretation by Host
Serial module definition
protocol
Module Definition 4 specifies a serial definition protocol. For this definition, upon power up, MOD-DEF(1:2) appear as no connector
(NC) and MOD-DEF(0) is TTL LOW. When the host system detects this condition, it activates the serial protocol. The protocol uses the
2-wire serial CMOS E
2
PROM protocol of the ATMEL AT24C01A/02/04 family of components.
***********************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC.
No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
1/1/2008 V2.0
Optoway
RECOMMENDED CIRCUIT SCHEMATIC
VeeT
Tx_DISABLE
Tx_FAULT
(1,17,20)
3
2
4.7K to 10KΩ
TD +
18
Z=50Ω
TD -
19
Z=50Ω
VccT
16
10nF
1μH
Vcc 3.3V
10μF
10nF
1μH
VccR
15
10nF
10μF
10μF
TD -
TD +
SPS-3131G
4
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Tx_DISABLE
Tx_FAULT
LD
Driver
100Ω
SerDes
IC
Protocol
IC
RD -
12
Z=50Ω
100Ω
RD -
POST
Amp
RD +
13
Z=50Ω
4.7K to 10KΩ
RD +
depending on SERDES
LOSS OF SINGAL
LOS
VeeR
MOD_DEF(0)
8
(9,10,11,14)
6
5
4
4.7K to 10KΩ
Vcc 3.3V
4.7K to 10KΩ
MODULE DETECT
SCL
SDA
4.7K to 10KΩ
EEPROM
MOD_DEF(1)
MOD_DEF(2)
SFP module
PACKAGE DIAGRAM
Units in mm
Note: Specifications subject to change without notice.
***********************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC.
No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
1/1/2008 V2.0
Optoway
Revision History
Version
1.0
2.0
SPS-3131G
5
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Subject
Initial datasheet
Revise package diagram for high port density use
Release Date
2005/12/1
2008/1/1
***********************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC.
No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
1/1/2008 V2.0
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