LC-155Bxxxxxxx
155Mbps, SFF LC 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.
Multi-Source 2×5 package styles with LC
Receptacle.
Single 3.3V Power Supply.
PECL Differential Inputs and Outputs.
PECL (LC-155B2xxxxxx Series) or TTL
(LC-155B4xxxxxx Series) Receiver Signal
Detect Indicator.
RoHS Compliance
Wave Solder and Aqueous Wash Process
Compatible.
Description:
The LC-155Bxxxxxxx series are SFF (Small Form
Factor) 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-155Bxxxxxxx transceivers are supplied in 2
×5 DIP package style with duplex LC connector and
are fully compliant with SFF Multi-Source Agreement
(MSA).
The LC-155Bxxxxxxx transceivers can meet Class-1
eye safety standard and effective distance depending
on ITU-T G.957 standard or power penalty.
The transmitter sections utilize 1310nm Edge Emitting
InGaAsP Laser Diode. This Laser Diode is packaged
in the optical subassembly portion of the transmitter
section. A custom silicon IC that converts differential
PECL logical signals into an analog LD 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 the logic output and the Signal
Detect function. The data output is differential. The
signal detect output is single-ended.
Application:
Single-mode Fiber Backbone Links.
Fast Ethernet and ATM Compatible.
Single-mode Fiber Media Converter.
DELTA ELECTRONICS, INC.
http://www.deltaww.com
1
Jan., 2008
Rev.：0H
LC-155Bxxxxxxx
Absolute Maximum Ratings
Parameter
Storage Temperature Ts -40 85 ºC
Lead Soldering Temperature T
Lead Soldering Time t
Supply Volt age VCC 0 5 V
Symbol Min. Typ. Max. Unit Note
260 ºC
SOLD
10 Sec.
SOLD
Recommended Operating Conditions
Parameter Symbol Min. Typ. Max. Unit Note
Data Rate 100 155.52 200 Mbps
Ambient Operating Temperature TA 0 70 ºC 1
Supply Volt age VCC 3.15 3.3 3.45 V
Note: See “Order Information” for detail
Electrical Characteristics
Parameter Symbol Min. Typ. Max. Unit Note
Transmitter
Transmitter Data Input Voltage-Low VIL-VCC -1.81 -1.48 V
Transmitter Data Input Voltage-High VIH-VCC -1.16 -0.88 V
Transmitter Disable Input-Low V
Transmitter Disable Input High V
Receiver
Data Output Voltage-Low VOL-VCC -1.95 -1.62 V
Data Output Voltage-High VOH-VCC -1.045 -0.74 V
SD Output Voltage-Low V
SD Output Voltage-High V
SD Output Voltage-Low V
SD Output Voltage-High V
0 0.8 V
DISL
2 Vcc V
DISH
-VCC -1.95 -1.62 V
SDL
-VCC -1.045 -0.74 V
SDH
0 0.8 V
SDL
2 Vcc V
SDH
ECL Family
LVTTL
Optical Characteristics
（Data Rate = 155.52Mbps, PRBS=223-1, NRZ, 9/125um SMF）
Parameter Symbol Min. Typ. Max. Unit Note
Transmitter
Supply Current Icc
Mean Launch Power Po
Optical Extinction Ratio E.R.
Center Wavelength
Spectral Width (RMS)
λ
σ
C
150
-15 -8
-5 0
9
1280 1310 1340 nm
7.7
3
Output Eye Diagram Compliant with ITU-T recommendation G. 957
Receiver
Supply Current Icc
Sensitivity PIN
Overload P
SAT
Signal Detect-Asserted PA
150
-31
-34
-8
-10
-31
-34
Signal Detect-DeAsserted PD -45 dBm
Signal Detect-Hysteresis PA-PD 0.5 dB
Note: The sensitivity should be tested at a BER of 1×10
NRZ, 2
23
-1 PRBS and E.R.=9dB.
-10
or better with an input signal consisting of 155Mbps,
mA
dBm
LC-155BxMxxxxx
dB
nm
LC-155BxMxxxxx
mA
dBm
LC-155BxMxxxxx
dBm
LC-155BxMxxxxx
dBm
LC-155BxMxxxxx
DELTA ELECTRONICS, INC.
http://www.deltaww.com
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Jan., 2008
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Pin Definition
Mask of the eye diagram for the optical transmit signal
LC-155Bxxxxxxx
PIN Symbol
1 GND Receiver Signal Ground
2 VccR Receiver Power Supply
3 SD Receiver Signal Detect (LVPECL or LVTTL)
4 RD(-) Receiver Data Out Inverted (LVPECL)
5 RD(+) Receiver Data Out Non-inverted (LVPECL)
6 VccT Transmitter Power Supply
7 GND Transmitter Signal Ground
8 TxDis Transmitter Disable
9 TD (+) Transmitter Data In Non-inverted (LVPECL)
10 TD (-) Transmitter Data In Inverted (LVPECL)
Pin Out Drawing
Functional description
DELTA ELECTRONICS, INC.
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Jan., 2008
Rev.：0H
Recommended Circuit Schematic
LC-155Bxxxxxxx
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.
http://www.deltaww.com
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Jan., 2008
Rev.：0H
Package Outline (Plastic Housing)：
Package Outline (Metal Housing):
LC-155Bxxxxxxx
DELTA ELECTRONICS, INC.
http://www.deltaww.com
5
Jan., 2008
Rev.：0H
Regulatory Compliance
LC-155Bxxxxxxx
Feature
Electromagnetic Interference
FCC Class B
Reference
(EMI)
EN 55022 Class B (CISPR 22A)
Radio Frequency
EN 61000-4-3
Electromagnetic Field
IEC 1000-4-3
Electrostatic Discharge to the
EN 61000-4-2
Duplex LC Receptacle
IEC 1000-4-2
IEC 801.2
Electrostatic Discharge to the
Electrical Pins
MIL-STD-883E Method 3015.7
Eye Safety US FDA CDRH AEL Class 1
EN 60950: 2000
EN 60825-1: 1994+A11+A2
EN 60825-2: 2000
Component Recognition Underwriters Laboratories and
Canadian Standards Association Joint
Component Recognition for Information
Technology Equipment Including
Electrical Business Equipment
Performance
(1) Satisfied with electrical
characteristics of product
spec.
(2) No physical damage
CDRH File # 0321539-00
TUV Certificate No. R50032471
UL File # E239394
Order Information
LC- 155BX1X2X3X4X5X6
X
Power Supply Voltage and SD Level
1
2: 3.3V; Data In/Out (PECL); SD Output (PECL)
4: 3.3V; Data In/Out (PECL); SD Output (TTL)
Effective Distance Grade
X
2
J: 15Km
M: 40Km
X
Package type & coupling type
3
1: 2×5 LC DC/DC
X4 RoHS
Blank: Non-RoHS Compliant
R: RoHS Compliant
Housing Type & Revision Code
X5
A: New Design
P: Plastic Housing
M: Metal Housing
Temperature
X
6
Blank: 0 to + 70 degree C
H: -10 to + 85 degree C
T: -40 to + 85 degree C
DELTA ELECTRONICS, INC.
http://www.deltaww.com
6
Jan., 2008
Rev.：0H
Appendix A．Document Revision
Version No. Date Description
0G 2006-11 Release
0H 2008-01
Correct “Recommended Circuit Schematic”、Pin Definition、 Order
Information
LC-155Bxxxxxxx
DELTA ELECTRONICS, INC.
http://www.deltaww.com
7
Jan., 2008
Rev.：0H
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