LC-1250xxxx Series
RoHS Compliant 2X5 SC Small Form Factor Transceiver for Gigabit
Ethernet
Features
Compliant with SFF transceiver MSA
specification
Compliant with Specifications for IEEE
802.3z/Gigabit Ethernet
LC-1250BxQxRx complian t with the
1.0625GBd Fiber Channel 100-SM-LC-L FC-PI
Rev.13
LC-1250AxFxRx compliant with the
1.0625GBd Fiber Channel FC-PI 100-M5-SN-I
Rev.13
Single +3.3V Power Supply
PECL or TTL Signal Detect level
Duplex LC connector interface
Description
The LC-1250xxxx series are high performance,
cost effective optical transceivers intended for
1250Mb/s. They are designed to provide Gigabit
Ethernet compliant link at 1250Mb/s for short,
intermediate and long reach links, respectively.
The LC-1250xxxx series provide with the LC
receptacle that are compatible with the industry
standard LC connector.
The LC-1250xxxx series are Class 1 eye safety
product. The optical power levels, under normal
operation, are at eye safe level.
Laser Class 1 Product which comply with the
requirements of IEC 60825-1 and IEC 60825-2
RoHS Compliant per Directive 2002/95/EC.
Applications
Gigabit Ethernet/Fast Ethernet
Switched backplane applications
File server interface
Performance
LC-1250AxFxRx:
850nm VCSEL, up to 500m in 50/125μm MMF
850nm VCSEL, up to 220m in 62.5/125μm MMF
LC-1250BxQxRx:
1310nm FP laser, Data Link up to 10km in
9/125um SMF
1310nm FP laser, up to 550m in 50/125μm MMF
DELTA ELECTRONICS, INC.
1310nm FP laser, up to 550m in 62.5/125μm
MMF
1 Jan., 2008
Rev. 0H
www.deltaww.com
LC-1250xxxx Series
Absolute Maximum Ratings
Parameter Symbol Min. Typ. Max. Unit Note
Storag e Temperature Ts -40 85 ºC
Lead Soldering Temperature T
Lead Soldering Time t
260 ºC
SOLD
10 sec.
SOLD
Supply Voltage VCC 0 5 V
Recommended Operating Conditions
Parameter Symbol Min. Typ. Max. Unit Note
Ambient Operating Temperature TA 0 70 ºC 1
Supply Voltage VCC 3.135 3.465 V
Note:
1.See ordering information for detail
Electrical Characteristics
( V
= 3.135 to 3.465V)
CC
Parameter Symbol Min. Typ. Max. Unit Note
Transmitter
Transmitter Data Input Voltage-Low VIL-V
Transmitter Data Input Voltage-High VIH-V
Transmitter Disable Input-High V
Transmitter Disable Input-Low V
DISH
DISL
Receiver
Data Output Voltage-Low VOL-V
Data Output Voltage-High VOH-V
PECL SD Output
LOW level output voltage
HIGH level output voltage
V
SDL-VCC
V
SDH-VCC
TTL SD Output
LOW level output voltage
HIGH level output voltage
V
V
SDL
SDH
-1.810 -1.475 V
CC
-1.165 -0.880 V
CC
2 VCC V
0 0.8 V
-1.95 -1.62 V
CC
-1.045 -0.74 V
CC
-1.95
-1.05
0
2
-1.62
V
-0.74
0.8
V
VCC
DELTA ELECTRONICS, INC.
2 Jan., 2008
Rev. 0H
www.deltaww.com
/
LC-1250xxxx Series
Optical Performance Specification
( V
= 3.135 to 3.465V )
CC
Parameter Symbol Min. Typ. Max. Unit Note
Transmitter
Supply Current ICC 150 mA
Output Optical Power (Avg.)
LC-1250AxFxRx
LC-1250BxQxRx
P
O
-9.5
-9.5
Optical Extinction Ratio ER 9 dB
Center Wavelength
LC-1250AxFxRx
LC-1250BxQxRx
λ
C
830
1274
Spectral Width (RMS)
LC-1250AxFxRx
σ
LC-1250BxQxRx
Optical Rise/Fall time
t
LC-1250AxFxRx
r/tf
LC-1250BxQxRx
Relative Intensity Noise
Output Eye
RIN -116 dB/Hz
Complies with the IEEE 802.3z
D2 specification, and is class 1
laser eye safety
Receiver
Supply Current ICC 120 mA
Optical Input Sensitivity (Avg.)
LC-1250AxFxRx
P
-17
IN
LC-1250BxQxRx
Optical Receiver saturation (Avg.) P
Input Optical Wavelength
LC-1250AxFxRx
LC-1250BxQxRx
-3 dBm
SAT
λ
830
1274
Optical Rise/Fall time
LC-1250AxFxRx
t
r/tf
LC-1250BxQxRx
Signal Detect-Asserted (Avg.)
P
LC-1250AxFxRx
A
LC-1250BxQxRx
Signal Detect-De-asserted (Avg.) PD -30 dBm
Signal Detect-Hysteresis PA-PD 0.5 dB
Notes:
1. These are unfiltered 20%~80% values
-10
2. The sensitivity is provided at a BER of 1×10
7
1250Mb/s, 2
-1 PRBS and ER=9dB.
or better with an input signal consisting of
-4
-3
860
1355
0.85
4.5
0.26
0.4
-19
860
1355
0.36
0.5
-17
-19
dBm
nm
nm
ns 1
dBm 2
nm
ns 1
dBm
3 Jan., 2008
Rev. 0H
DELTA ELECTRONICS, INC.
www.deltaww.com
Pin Definition
LC-1250xxxx Series
Mask of the eye diagram for the optical transmit signal
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
DELTA ELECTRONICS, INC.
4 Jan., 2008
Rev. 0H
www.deltaww.com
Pin Out Drawing
Recommended Circuit Schematic (LC-1250xxx1Rx)
LC-1250xxxx Series
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
DELTA ELECTRONICS, INC.
5 Jan., 2008
Rev. 0H
www.deltaww.com
C8=C9=10uF
L1=L2=1uH
Recommended Circuit Schematic (LC-1250xxx2Rx)
LC-1250xxxx Series
R1=130 ohm (3.3V PECL),82 ohm(5V),NC (TTL)
R2=82 ohm (3.3V PECL),130 ohm(5V),NC (TTL)
C1=C2=C3 =100 nF
C4=C5=10uF
L1=L2=1uH
DELTA ELECTRONICS, INC.
6 Jan., 2008
Rev. 0H
www.deltaww.com
Package Outline (Plastic Housing)
LC-1250xxxx Series
DELTA ELECTRONICS, INC.
7 Jan., 2008
Rev. 0H
www.deltaww.com
Package Outline (Metal Housing)
LC-1250xxxx Series
DELTA ELECTRONICS, INC.
8 Jan., 2008
Rev. 0H
www.deltaww.com
Regulatory Compliance
Feature Reference Performance
LC-1250xxxx Series
Electromagnetic Interference
(EMI)
Radio Frequency
Electromagnetic Field
Electrostatic Di scharge to the
Duplex LC Receptacle
Electrostatic Di scharge to the
Electrical Pins
Eye Safety US FDA CDRH AEL Class 1
Component Recognition Underwriters Laboratories and
FCC Class B
EN 55022 Class B (CISPR 22A)
EN 61000-4-3
IEC 1000-4-3
EN 61000-4-2
IEC 1000-4-2
IEC 801.2
MIL-STD-883E Method 3015.7
EN 60950: 2000
EN 60825-1: 1994+A11+A2
EN 60825-2: 2000
Canadian Standards Association Joint
Component Recognition for Information
Technology Equipment Including
Electrical Business Equipment
(1) Satisfied with electrical
characteristics of product
spec.
(2) No physical damage
CDRH File # 0321539-00
TUV Certificate No. R50032471
UL File # E239394
DELTA ELECTRONICS, INC.
9 Jan., 2008
Rev. 0H
www.deltaww.com
Order Information
/
LC- 1250X1X2X3X4X5X6X7
LC-1250xxxx Series
X
X
X
X
: Light source types
1
A: Multi-mode 850nm
B: Single-mode 1310nm
Power Supply Voltage and SD Level
:
2
2: 3.3V, PECL SD Level
4: 3.3V, TTL SD Level
:
3
Distance
F: 500m,
Q: 10km,
:
Data Coupling
4
1: SFF LC DC/DC
2: SFF LC AC/AC
50/125μm
9/125μm
MMF
SMF
: RoHS Compliant
X
5
Blank: Non-RoHS Compliant
R: RoHS Compliant
X
: Shielding Type & housing
6
A: New design
B: B type shielding
C
D: A type shielding
M: Metal housing
P: Plastic housing
X7: Temperature
Blank: 0 to +70 degree C
H: -10 to + 85 degree C
T: -40 to + 85 degree C
Appendix A. Document Revision
Version No. Date Description
0G 2006-11 Release
0H 2008-01
Correct “T TL SD Output”、 “PECL SD Output”、 Optical Rise
time、Spectral Width (RMS)、Package Outline、Circuit Schematic、
Order Information
: C type shielding
Fall
10 Jan., 2008
Rev. 0H
DELTA ELECTRONICS, INC.
www.deltaww.com
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