Single-Mode 1.25Gbps Optical Transceiver
Features
•
•
•
•
•
•
•
•
•
Intermediate and long reach
Industrial standard 1x9 pin footprint
Duplex SC/ST/FC single mode connector interface
Receiver signal detect function
Wide dynamic rang receiver with AGC
PECL/LVPECL logic interface, DC or AC coupling
Single supply 5V/3.3V
Low power consumption
RoHS available
Specifications
Parameter
Transmitter
Data Rate (NRZ)
Optical Output Power (avg.)
(1) (2) (3)
-1
-2
Extinction Ratio
Optical Wavelength
1310nm FP LD
1310nm DFB LD
1550nm FP LD
1550nm DFB LD
Spectral Width (RMS, -20dB)
1310nm FP LD
1550nm FP LD
Side Mode Suppression Ratio
1310nm DFB LD
1550nm DFB LD
Output Rise Time (20-80%)
Output Fall Time (20-80%)
Data Input
(6)
Symbol
B
P
o
P
o
ER
λ
C
λ
C
λ
C
λ
C
Δλ
Δλ
SMSR
SMSR
t
r
t
f
V
IL
V
IH
V
I
V
CC
I
CC
Min.
-
-12
-6
9
1260
1290
1490
1530
-
-
30
30
-
-
V
CC
-1.810
V
CC
-1.165
0.25
3.10
4.75
-
Typ.
1250
-
-
-
1310
1310
1550
1550
1.0
1.0
40
40
-
-
-
-
-
3.3
5.0
-
Max.
-
-6
0
-
1360
1330
1610
1570
2.0
2.5
-
-
0.26
0.26
V
CC
-1.475
V
CC
-0.880
1.6
3.50
5.25
110
Unit
Mb/s
dBm
dBm
dB
nm
nm
nm
nm
nm
nm
dB
dB
ns
ns
V
V
V
V
mA
DC Coupled
AC Coupled
(Differential)
Supply Voltage
Supply Current
1
2009-2
Single-Mode 1.25Gbps Optical Transceiver
Parameter
Receiver
Data Rate (NRZ)
Optical Input (avg.) Sensitivity
(1) (5)
-1
-2
Saturation
Optical Wavelength
Output Rise Time (20-80%)
Output Fall Time (20-80%)
Data Output
(6)
Symbol
B
P
IN
P
IN
P
SAT
λ
t
r
t
f
V
OL
V
OH
V
I
P
A
P
D
P
HYS
V
CC
Min.
-
-
-
-3
1100
-
-
V
CC
-1.840
V
CC
-1.045
0.6
-
-35
-
3.10
4.75
-
Typ.
1250
-
-
0
-
-
-
-
-
-
-
-
2
3.3
5.0
-
Max.
-
-23
-25
-
1600
0.4
0.4
V
CC
-1.62
V
CC
-0.88
1.8
-23
-
-
3.50
5.25
100
Unit
Mb/s
dBm
dBm
dBm
nm
ns
ns
V
V
V
dBm
dBm
dB
V
mA
DC Coupled
AC Coupled
(Differential)
Signal Detect Asserted (avg.)
Signal Detect Deasserted (avg.)
Hysteresis
Supply Voltage
Supply Current
I
CC
Notes：
(1) With 0.275 NA, 9/125μm fiber.
(2) Driven with a differential signal.
(3) Class 1 eye safe per FDA and IEC.
(4) Eye mask diagram is compliant to IEEE802.3z Eye Diagram.
(5) 2
7
-1 PRBS, BER= 10
-12
.
(6) Compatible with LVPECL and PECL logic levels.
(7) The transmitter output should not be viewed directly.
Absolute Maximum Ratings
Parameter
Operating Temperature
Storage Temperature
Lead Soldering Limits
Supply Voltage
5V
3.3V
-1
-2
Min.
0
-40
-40
-
-0.2
-0.2
Max.
70
85
100
240/10
7
4
Unit
°C
°C
°C
°C /sec
V
V
2
2009-2
Single-Mode 1.25Gbps Optical Transceiver
Ordering Information
T R
□ □
S M 3 -
□ □ □ □ □
9 R
□ □ □
G
--
for RoHS
Operating Temperature Range：
1：0 ~ 70°C
2：-40 ~ 85°C
Data Coupling & SD Output Level：
Tx
Rx
SD
Symbol
Coupling Coupling
C
AC
DC
PECL
D
AC
DC
TTL
E
AC
AC
PECL
F
AC
AC
TTL
G
DC
DC
PECL
H
DC
DC
TTL
I
DC
AC
PECL
J
DC
AC
TTL
Sensitivity
Grade
Specifications)
1：-1
2： 2
Voltage：
Supply
5：5V
3：3.3V
Connector Type：
SC：SC Connector
FC：FC Connector
ST：ST Connector
Laser Type：
L：FP LD
F：DFB LD
Tx Output Power Grade：
(refer to Specifications)
1：-1
2：-2
Wavelength：
13：1310nm
15：1550nm
：
(refer
to
3
2009-2
Single-Mode 1.25Gbps Optical Transceiver
Outline Drawing
UNIT：mm
4
2009-2
Single-Mode 1.25Gbps Optical Transceiver
Pinout Description
Pin No.
1
2
3
4
5
6
7
8
9
Symbol
V
EER
RD+
RD-
SD
V
CCR
V
CCT
TD-
TD+
V
EET
Description
Receiver Ground
Receiver Data Out
Receiver Data Out (Inverted)
Receiver Signal Detect
Receiver Power Supply (5V/3.3V)
Transmitter Power Supply (5V/3.3V)
Transmitter Data In (Inverted)
Transmitter Data in
Transmitter Ground
Application Notes
Recommended AC Coupling Interface Circuit：
1 X 9 Transceiver
(AC Data Coupling)
Transmitter
Laser
Driver
(7) TD-
(6) VCCT
L1
VCC
C1
C3
C4
L2
C2
(4) SD
To upper level IC SD
SerDes IC
(AC Data Coupling
R1
Z=50Ω
Z=50Ω
R2
DATA OUT+
(9) VEET
(8) TD+
DATA OUT-
Receiver
(5) VCCR
Serializer/
Deserializer
PIN
Pre-
Amp.
Limiting
Amp.
(3) RD-
R4
Z=50Ω
R3
DATA IN-
(2) RD+
Z=50Ω
DATA IN+
(1) VEER
NOTE
：
L1=L2=1μH or ferrite bead
1. Transmission line characteristic impedance Z=50Ω.
C1=C2=C3=0.1μF
2. R1, R2, R3 as close to SerDes IC as possible.
C4=10μF
R1, R2, R3 depends on SerDes IC specification.
(Consult the SerDes IC application information)
R4=510Ω
5
2009-2
Microcontroller MCU
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