Delta Electronics LC-155Axxxxx User Manual
155Mbps 1x9 SC/ST Duplex Optical Transceiver Module for
Fast Ethernet, ATM, SONET/OC-3, SDH/STM-1
LC-155Axxxxx
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 Interfa ce .
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
Absolute Maximum Ratings
Parameter
Storage Temperature Ts -40 85 ℃
Lead Soldering Temperature T
Lead Soldering Time t
Supply Voltage Vcc 0 5 V
Symbol Min. Typ. Max. Unit Note
260 ℃
sold
10 Second
sold
Recommended Operating Conditions
Parameter Symbol Min. Typ. Max. Unit Note
Data Rate 155.52 Mbps
Ambient Operating Temperature TA 0 70 ℃ Note1
Supply Voltage Vcc
3.15 3.3 3.45
Note1: See “order Information” for detail
Electrical Characteristics
Parameter
Transmitter
Transmitter Data Input Voltage-Low VIL-Vcc -1.81 -1.48 Mbps
Transmitter Data Input Voltage-High VIH-Vcc -1.16 -0.88 ℃
Transmitter Disable Input-High V
Transmitter Disable Input-Low V
Receiver
Data Output Voltage-Low VOL-Vcc -1.95 -1.62 V
Data Outpot 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
Symbol Min. Typ. Max. Unit Note
2 Vcc +0.3 V
DISH
0 0.8 V
DISL
-Vcc -1.95 -1.62 V ECL Family
SDL
-Vcc -1.045 -0.74 V
SDH
0.8 V
SDL
2 V
SDH
LC-155Axxxxx
V
LVTTL
Optical Characteristics
(Data Rate = 155.52Mbps, PRBS=223-1, NRZ, 62.5/125um MMF)
Parameter Symbol Min. Typ. Max. Unit Note
Transmitter
Supply Current Icc 185 mA
Mean Launch Power Po -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 tr/rf 3.0 ns 10%~90%
Output Eye Diagram Compliant with ITU-T recimmendation G.957
Receiver
Supply Current Icc 145 mA
Sensitivity PIN -31 dBm Note2
Input Optical Wavelength λ 1100 1600 nm
Signal Detect-Asserted PA -31 dBm
Signal Detect-DeAsserted PD -45 dBm
Signal Detect-Hysteresis PA-PD 0.5 dB
Overload P
Notes2: The Sensitivity should be tested at BER of 1x10
DELTA ELECTRONICS, INC.
www.deltaww.com
-14 dBm
SAT
-10
or better with an input signal consisting of 155Mbps,
2
Jan., 2008
Rev. :0F
NRZ, PRBS=2
Pin Definition
23
-1 and E.R= 9dB.
LC-155Axxxxx
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)
Functional description
Pin Out Drawing
DELTA ELECTRONICS, INC.
www.deltaww.com
3
Jan., 2008
Rev. :0F
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