LC-155Axxxxx
155Mbps 1x9 SC/ST Duplex Optical Transceiver Module for
Fast Ethernet, ATM, SONET/OC-3, SDH/STM-1
Features:
Full Compliance with the Optical Performance
Requirements of the ATM 100Mbps and 100
Base-FX Version of IEEE 802.3u.
Industry Standard 2x5 Footprint and Duplex LC
Connector Interface.
3.3V Power Supply.
PECL Differential Inputs and Outputs.
PECL (LC-155A2 Series) or TTL (LC-155A4
Series) Receiver Signal Detect Indicator.
RoHS Compliance.
Wave Solder and Aqueous Wash Process
Compatible.
Description
The LC-155Axxxx series are 2x5 optical transceiver
modules
designed
expressly
for
high-speed
communication applications that require rates of up to
155Mbps. They are all compliant with the SONET/SDH
standards.
The LC-155Axxxx transceivers are supplied in industry
standard 2x5 footprint and duplex LC connector.
The LC-155Axxxx series meet Class-1 eye safety
standard and effective distance up to 2Km.
The transmitter sections utilize 1310nm Surface
Emitting InGaAsP LEDs. These LEDs are packaged in
the optical subassembly portion of the transmitter
section. A custom silicon IC that converts differential
PECL logical signals into an analog LED driving current
drives it.
The receiver sections utilize InGaAs PIN photodiodes
coupled into a custom silicon trans-impedance
preamplifier IC. These are packaged in the optical
subassembly portion of receiver.
These PIN/Preamplifier combinations are coupled into a
custom quantizer IC which provides the final pulse
shaping for logic output and the signal Detect function.
The data output is differential. The signal detect output
is signal-ended.
Application:
Multimode Fiber Backbone Links.
Fast Ethernet and ATM Compatible.
Multimode Fiber Media Convert
DELTA ELECTRONICS, INC.
www.deltaww.com
1
Jan., 2008
Rev. :0F
LC-155Axxxxx
Absolute Maximum Ratings
Parameter
Storage Temperature
Lead Soldering Temperature
Lead Soldering Time
Supply Voltage
Parameter
Data Rate
Ambient Operating Temperature
Supply Voltage
Note1: See “order Information” for detail
Symbol
T
s
T
sold
t
sold
Vcc
Symbol
T
A
Vcc
Min.
-40
Typ.
Max.
85
260
10
5
Max.
70
3.45
Unit
℃
℃
Second
V
Unit
Mbps
℃
V
Note
0
Min.
0
3.15
Typ.
155.52
3.3
Recommended Operating Conditions
Note
Note1
Electrical Characteristics
Parameter
Transmitter
Transmitter Data Input Voltage-Low
Transmitter Data Input Voltage-High
Transmitter Disable Input-High
Transmitter Disable Input-Low
Receiver
Data Output Voltage-Low
Data Outpot Voltage-High
SD Output Voltage-Low
SD Output Voltage-High
SD Output Voltage-Low
SD Output Voltage-High
Symbol
V
IL
-Vcc
V
IH
-Vcc
V
DISH
V
DISL
V
OL
-Vcc
V
OH
-Vcc
V
SDL
-Vcc
V
SDH
-Vcc
V
SDL
V
SDH
Min.
-1.81
-1.16
2
0
-1.95
-1.045
-1.95
-1.045
2
Typ.
Max.
-1.48
-0.88
Vcc +0.3
0.8
-1.62
-0.74
-1.62
-0.74
0.8
Unit
Mbps
℃
V
V
V
V
V
V
V
V
Note
ECL Family
LVTTL
Optical Characteristics
(Data Rate = 155.52Mbps, PRBS=2
23
-1, NRZ, 62.5/125um MMF)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Note
Transmitter
Supply Current
Icc
185
mA
Mean Launch Power
P
o
-20
-14
dBm
Optical Extinction Ratio
E.R
9
dB
Center Wavelength
λc
1280
1310
1340
nm
Spectral Width (RMS)
σ
200
nm
Optical Risetime / Falltime
t
r
/r
f
3.0
ns
10%~90%
Output Eye Diagram
Compliant with ITU-T recimmendation G.957
Receiver
Supply Current
Icc
145
mA
Sensitivity
P
IN
-31
dBm
Note2
Input Optical Wavelength
λ
1100
1600
nm
Signal Detect-Asserted
P
A
-31
dBm
Signal Detect-DeAsserted
P
D
-45
dBm
Signal Detect-Hysteresis
P
A
-P
D
0.5
dB
Overload
P
SAT
-14
dBm
Notes2: The Sensitivity should be tested at BER of 1x10
-10
or better with an input signal consisting of 155Mbps,
DELTA ELECTRONICS, INC.
www.deltaww.com
2
Jan., 2008
Rev. :0F
LC-155Axxxxx
NRZ, PRBS=2
23
-1 and E.R= 9dB.
Pin Definition
PIN
1
2
3
4
5
6
7
8
9
10
Symbol
GND
VccR
SD
RD(-)
RD(+)
VccT
GND
TxDis
TD (+)
TD (-)
Receiver Signal Ground
Receiver Power Supply
Receiver Signal Detect (LVPECL or LVTTL)
Receiver Data Out Inverted (LVPECL)
Receiver Data Out Non-inverted (LVPECL)
Transmitter Power Supply
Transmitter Signal Ground
Transmitter Disable
Transmitter Data In Non-inverted (LVPECL)
Transmitter Data In Inverted (LVPECL)
Functional description
Pin Out Drawing
DELTA ELECTRONICS, INC.
www.deltaww.com
3
Jan., 2008
Rev. :0F
LC-155Axxxxx
Recommend Circuit Schematic for Internal DC Coupled Transceivers
R1=R3=82 ohm (3.3V),68 ohm(5V)
R2=R4=130 ohm (3.3V),191 ohm (5V)
R5=R6=150 ohm (3.3V),270 ohm (5V)
R7=130 ohm (3.3V PECL),82 ohm(5V),NC (TTL)
R8=82 ohm (3.3V PECL),130 ohm(5V),NC (TTL)
C1=C2=C3=C4=C5=C6=C7=100 nF
C8=C9=10uF
L1=L2=1uH
DELTA ELECTRONICS, INC.
www.deltaww.com
4
Jan., 2008
Rev. :0F
Embedded System
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