LC-155Bxxxxxxx
DELTA ELECTRONICS, INC.
http://www.deltaww.com 1 Jan., 2008
Rev.：0H
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.
LC-155Bxxxxxxx
DELTA ELECTRONICS, INC.
http://www.deltaww.com 2 Jan., 2008
Rev.：0H
Absolute Maximum Ratings
Parameter Symbol Min. Typ. Max. Unit Note
Storage Temperature Ts -40 85 ºC
Lead Soldering Temperature TSOLD 260 ºC
Lead Soldering Time tSOLD 10 Sec.
Supply Voltage VCC 0 5 V
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 Voltage 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 VDISL 0 0.8 V
Transmitter Disable Input High VDISH 2 Vcc 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 Volt age-Low VSDL-VCC -1.95 -1.62 V
SD Output Volt age-High VSDH-VCC -1.045 -0.74 V
ECL Family
SD Output Volt age-Low VSDL 0 0.8 V
SD Output Volt age-High VSDH 2 Vcc V
LVTTL
Optical Characteristics
（Data Rate = 155.52Mbp s, PRBS=223-1, NRZ, 9/125um SMF）
Parameter Symbol Min. Typ. Max. Unit Note
Transmitter
Supply Current Icc 150 mA
-15 -8
Mean Launch Power Po -5 0
dBm LC-155BxMxxxxx
Optical Extinction Ratio E.R. 9
dB
Center Wavelength λC 1280 1310 1340 nm
7.7
Spectral Width (RMS) σ 3
nm LC-155BxMxxxxx
Output Eye Diagram Compliant with ITU-T recommendation G.957
Receiver
Supply Current Icc 150 mA
-31
Sensitivity PIN -34
dBm LC-155BxMxxxxx
-8
Overload PSAT -10 dBm LC-155BxMxxxxx
-31
Signal Detect-Asserted PA -34
dBm LC-155BxMxxxxx
Signal Detect-DeAsserted PD -45 dBm
Signal Detect-Hysteresis PA-PD 0.5 dB
Note: The sensitivity should be tested at a BER of 1×10-10 or better with an input signal consisting of 155Mbps,
NRZ, 223-1 PRBS and E.R.=9dB.
LC-155Bxxxxxxx
DELTA ELECTRONICS, INC.
http://www.deltaww.com 3 Jan., 2008
Rev.：0H
Mask of the eye diagram for the optical transmit signal
Pin Definition
PIN Symbol Functional description
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
LC-155Bxxxxxxx
DELTA ELECTRONICS, INC.
http://www.deltaww.com 4 Jan., 2008
Rev.：0H
Recommended Circuit Schematic
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
LC-155Bxxxxxxx
DELTA ELECTRONICS, INC.
http://www.deltaww.com 5 Jan., 2008
Rev.：0H
Package Outline (Plastic Housing)：
Package Outline (Metal Housing):
LC-155Bxxxxxxx
DELTA ELECTRONICS, INC.
http://www.deltaww.com 6 Jan., 2008
Rev.：0H
Regulatory Compliance
Feature Reference Performance
Electromagnetic Interference
(EMI) FCC Class B
EN 55022 Class B (CISPR 22A)
Radio Frequency
Electromagnetic Field EN 61000-4-3
IEC 1000-4-3
Electrostatic Discharge to the
Duplex LC Receptacle EN 61000-4-2
IEC 1000-4-2
IEC 801.2
Electrostatic Discharge to the
Electrical Pins MIL-STD-883E Method 3015.7
(1) Satisfied with electrical
characteristics of product
spec.
(2) No physical damage
Eye Safety US FDA CDRH AEL Class 1
EN 60950: 2000
EN 60825-1: 1994+A11+A2
EN 60825-2: 2000
CDRH File # 0321539-00
TUV Certificate No. R50032471
Component Recognition Underwriters Laboratories and
Canadian Standards Association Joint
Component Recognition for Information
Technology Equipment Including
Electrical Business Equipment
UL File # E239394
Order Information
LC- 155BX1X2X3X4X5X6
X1 Power Supply Voltage and SD Lev el
2: 3.3V; Data In/Out (PECL); SD Output (PECL)
4: 3.3V; Data In/Out (PECL); SD Output (TTL)
X4 RoHS
Blank: Non-RoHS Compliant
R: RoHS Compliant
X2 Effective Distance Grade
J: 15Km
M: 40Km
X5 Housing Type & Revision Code
A: New Design
P: Plastic Housing
M: Metal Housing
X3
Package type & coupling type
1: 2×5 LC DC/DC
X6 Temperature
Blank: 0 to + 70 degree C
H: -10 to + 85 degree C
T: -40 to + 85 degree C
LC-155Bxxxxxxx
DELTA ELECTRONICS, INC.
http://www.deltaww.com 7 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
