Optoway
FEATURES
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SPB-4940RLWG
1
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SPB-4940RLWG / SPB-4940BRLWG / SPB-4940ARLWG
(RoHS Compliant)
6.144 Gbps
/
1330 nm TX / 1270 nm RX
/
40 km
Digital Diagnostic
Multi-Rate CPRI
SM SFP+
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DESCRIPTION
1-Fiber Bi-Directional SFP Optical Transceiver
CPRI / OBSAI Compatible Optical Interface
1 G to 6.25 G Multi-rate Specification
Compliant with SFP+ MSA
SFF-8472 Digital Diagnostic Function
Simplex LC Connector
1330 nm DFB LD Transmitter
1270 nm Receiver
Distance Up to 40 km
AC/AC Coupling according to MSA
Single +3.3 V Power Supply
RoHS Compliant
0 to 70
o
C Operating: SPB-4940RLWG
-10 to 85
o
C Operating: SPB-4940BRLWG
-40 to 85
o
C Operating: SPB-4940ARLWG
Class 1 Laser International Safety Standard IEC 60825
Compliant
The SPB-4940RLWG is a 1 to 6.25 Gb/s single-mode
transceiver module for serial optical communication
applications for a radio base station system by using 1330
nm transmitter and 1270 nm receiver. It is with the SFP
20-pin connector to allow hot plug capability. Digital
diagnostic functions are available via an I
2
C series bus
specified in the SFP MSA SFF-8472. The transmitter
section uses a multiple quantum well 1330 nm DFB laser
and is a class 1 laser compliant according to International
Safety Standard IEC 60825. The receiver section uses an
integrated 1270 nm 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.
APPLICATIONS
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Radio Base Station
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OBSAI rates 6.144 Gb/s, 3.072 Gb/s, and 1.563 Gb/s
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CPRI rates 4.9152 Gb/s, 2.4576 Gb/s, and 1.2288 Gb/s
ORDER INFORMATION
P/No.
SPB-4940RLWG
SPB-4940BRLWG
SPB-4940ARLWG
Bit Rate
(Gb/s)
1 to 6.25
1 to 6.25
1 to 6.25
Distance
(km)
40
40
40
TX
(nm)
1330 DFB
1330 DFB
1330 DFB
RX
(nm)
1270
1270
1270
Package
LC SFP+ with DMI
LC SFP+ with DMI
LC SFP+ with DMI
Temp
(
o
C)
0 to 70
-10 to 85
-40 to 85
RoHS
Compliant
Yes
Yes
Yes
Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Case Temperature
Symbol
Tstg
Topr
Min
-40
0
-10
-40
0
0
GND
0
Max
85
70
85
85
85
3.6
Vcc
30
Units
o
C
o
C
Notes
SPB-4940RLWG
SPB-4940BRLWG
SPB-4940ARLWG
Non condensing
Relative Humidity
Power Supply Voltage
Input Voltage
Output Current
RH
Vcc
---
Iout
%
V
V
mA
Recommended Operating Conditions
Parameter
Power Supply Voltage
Power Supply Current
Operating Case Temperature
Symbol
Vcc
I
CC (TX+RX)
Topr
Min
3.13
0
-10
-40
1
Typ
3.3
270
Max
3.47
320
70
85
85
6.25
Units / Notes
V
mA
o
C / SPB-4940LWG
o
C / SPB-4940BLWG
o
C / SPB-4940ALWG
Gb/s
Data Rate
**********************************************************************************************************************************************************************
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
2010/9/1
V2.0
Optoway
Transmitter Optical Specifications (0
o
C < Topr < 70
o
C, 3.13V < Vcc < 3.47V)
Parameter
Average Launch Power
Output Center Wavelength
Output Spectrum Width
Side Mode Suppression Ratio
Relative Intensity Noise
Average Launch Power of OFF
Transmitter
Symbol
Po,
Avg
λc
σ
λ
SMSR
RIN
Min
1
1320
30
-128
-30
Typ
Max
5
1340
1
Units
dBm
nm
nm
dB
dB/Hz
dBm
SPB-4940RLWG
Notes
1
-20 dB width
2
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1. Output power is power coupled into a 9/125
µm
single-mode fiber.
Receiver Optical Specifications (0
o
C < Topr < 70
o
C, 3.13V < Vcc < 3.47V)
Parameter
Sensitivity
Receiver Overload
LOS -- Deasserted
LOS -- Asserted
Wavelength of Operation
Symbol
P
MAX
LOS
D
LOS
A
λc
Min
0.5
---
-30
1260
Typ
---
---
---
Max
-15
-18
---
1280
Units
dBm
dBm
dBm
dBm
nm
Notes
2, Average Power
Transition: low to high
Transition: high to low
3
2. A valid 8B/10Bencoded input is required for receiver sensitivity specification.
3. At least 30 dB optical isolation for the wavelength 1320 to 1340 nm.
Electrical Characteristics
Parameter
Symbol
High-Speed Signal (CML) Interface Specification
Input Data Rate
Differential Input Impedance
Rin
Differential Data Input Amplitude
Output Data Rate
Differential Output Impedance
Rout
Differential Data Output
Amplitude
Low-Speed Signal (LVTTL) Interface Specification
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Min
1
100
150
1
350
100
600
1200
6.25
700
Typ
Max
6.25
Units
Gb/s
Ω
mVpp
Gb/s
Ω
mVpp
Notes
Internally AC coupled
Internally AC coupled
2.0
GND
2.4
GND
Vcc+0.3
0.8
Vcc
0.5
V
V
V
V
**********************************************************************************************************************************************************************
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
2010/9/1
V2.0
Optoway
CONNECTION DIAGRAM
SPB-4940RLWG
3
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PIN Signal Name
1
2
V
EE
T
TX_Fault
Description
Transmitter Signal Ground
Transmitter Fault Indication. Logic
“1”
Output
= Laser Fault. Logic
“0”
Output = Normal
Operation
Logic
“1”
Input (or no connection) = Laser off,
Logic
“0”
= Laser on.
Modulation Definition 2
–
Two wires serial ID
Interface
Modulation Definition 1
–
Two wires serial ID
Interface
Modulation Definition 0
–
Ground in Module
RX Rate Select (LVTTL). This pin has an
internal 30k pulldown to ground. A signal on
this pin will not affect module performance.
Loss of Signal Out (OC).
TX Rate Select (LVTTL). This pin has an
internal 30k pulldown to ground. A signal on
this pin will not affect module performance.
Receiver Signal Ground
PIN Signal Name
11
12
V
EE
R
RD-
Description
Receiver Signal Ground
Inverse Receiver Data Out
3
4
5
6
7
TX_Disable
SDA
SDL
MOD-ABS
RS0
13
14
15
16
17
RD+
V
EE
R
V
CC
R
V
CC
T
V
EE
T
Receiver Data Out
Receiver Signal Ground
Receiver Power
–
3.3V±5%
Transmitter Power
–
3.3V±5%
Transmitter Signal Ground
8
9
RX_LOS
RS1
18
19
TD+
TD-
Transmitter Data In
Inverse Transmitter Data In
10
V
EE
R
20
V
EE
T
Transmitter Signal Ground
MODULE DEFINITION
Module Definition
4
PIN 4
SDA
PIN 5
SCL
PIN 6
MOD-ABS
Interpretation by Host
Serial module definition
protocol
Module Definition 4 specifies a serial definition protocol. For this definition, upon power up, SDA and SDL appear as no connector
(NC) and MOD-ABS 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
2010/9/1
V2.0
Optoway
RECOMMENDED CIRCUIT SCHEMATIC
Vee T
Tx_DISABLE
Tx_FAULT
( 1,17,20)
3
2
10 KΩ
TD +
18
Z=50Ω
TD -
19
Z=50Ω
Vcc T
16
0.1μF
4 .7
μH
Vcc 3.3V
22
μF
0.1μF
0.1μF
Vcc R
15
0.1μF
22
μF
4 .7
μH
TD -
TD +
SPB-4940RLWG
4
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Tx_DISABLE
Tx_FAULT
LD
D
river
100Ω
SerDes
IC
Protocol
IC
RD -
12
Z=50Ω
100Ω
RD -
POST
Amp
RD +
13
Z=50Ω
10 KΩ
RD +
depending on SE D S
RE
LOSS OF SINGAL
LOS
Vee R
RS1
30K
Ω
30K
Ω
MOD_ABS
RS0
8
( 10,11,14)
9
7
TX Rate Select
RX Rate Select
6
5
4
10 KΩ
10 KΩ
10 KΩ
Vcc 3.3V
MODU LE DETECT
SCL
SDA
EEPROM
SCL
SDA
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
2010/9/1
V2.0
Optoway
REVISION HISTORY
Version
1.0
2.0
Initial datasheet
Extend data rate: from 1 Gb/s to 6.25Gb/s
SPB-4940RLWG
5
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Subject
Release Date
2010/1/1
2010/9/1
**********************************************************************************************************************************************************************
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
2010/9/1
V2.0
DSP and ARM Processors
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