LC-1250xxxxRx Series
RoHS Compliant 2x5 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 compliant 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
Laser Class 1 product which comply with the
requirements of IEC 60825-1 and IEC 60825-2
Duplex LC connector interface
TTL or PECL signal detect level
RoHS Compliant per Directive 2002/95/EC
Description
The
LC-1250xxxxRx series
are high performance,
cost effective optical transceivers intended for
1250 Mb/s. They are designed to provide
Gigabit Ethernet compliant link at 1250 Mb/s for
short, intermediate and long reach links,
respectively.
The
LC-1250xxxxRx series
provide with the LC
receptacle those are compatible with the
industry standard LC connector.
The
LC-1250xxxxRx series
are Class 1 eye
safety product. The optical power levels, under
normal operation, are at eye safe level.
Applications
Switch to switch interface
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, up to 10km in 9/125μm SMF
1310nm FP laser, up to 550m in 50/125μm
MMF
1310nm FP laser, up to 550m in 62.5/125μm
MMF
1
Sep., 2006
Rev. 0E
DELTA ELECTRONICS, INC.
www.deltaww.com
LC-1250xxxxRx Series
Absolute Maximum Ratings
Parameter
Storage Temperature
Lead Soldering Temperature
Lead Soldering Time
Supply Voltage
Symbol
Ts
T
SOLD
t
SOLD
V
CC
Min.
-40
Typ.
Max.
85
260
10
5
Unit
ºC
ºC
Sec.
V
Note
0
Recommended Operating Conditions
Parameter
Ambient Operating Temperature
Supply Voltage
Note: See ordering information for detail
Symbol
T
A
V
CC
Min.
0
3.135
Typ.
Max.
70
3.465
Unit
ºC
V
Note
1
Electrical Characteristics
(V
CC
=3.135 V to 3.465 V)
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 Output Voltage-High
SD Output Voltage-Low
SD Output Voltage-High
SD Output Voltage-Low
SD Output Voltage-High
Symbol
V
IL
-V
CC
V
IH
-V
CC
V
DISH
V
DISL
V
OL
-V
CC
V
OH
-V
CC
V
SDH
-V
CC
V
SDL
-V
CC
V
SDH
-V
CC
V
SDL
-V
CC
Min.
-1.81
-1.16
2
0
-1.95
-1.045
-1.95
-1.05
2
Typ.
Max.
-1.48
-0.88
V
CC
+0.3
0.8
-1.62
-0.74
-1.62
-0.74
0.8
Unit
V
V
V
V
V
V
V
V
V
V
Note
ECL
Family
LVTTL
2
DELTA ELECTRONICS, INC.
Sep., 2006
Rev. 0E
www.deltaww.com
LC-1250xxxxRx Series
Transmitter Optical Performance Specifications:
(V
CC
=3.135 V to 3.465 V)
Parameter
Supply Current
Average Launched Power
LC-1250AxFxRx
LC-1250BxQxRx
Optical extinction ratio
Center wavelength
LC-1250AxFxRx
LC-1250BxQxRx
Spectral Width
LC-1250AxFxRx (RMS)
LC-1250BxQxRx (RMS)
Relative Intensity Noise
Optical Rise/Fall Time
Output Eye
Symbol
Icc
P
O
ER
λ
C
σ
RIN
t
r
/t
f
-9.5
-9.5
9
830
1274
Min.
Typ.
Max.
150
-4
-3
Unit
mA
dBm
dB
860
1355
0.85
2.8
-116
260
nm
Notes
nm
dB/Hz
ps
1
Complies with the IEEE 802.3z/D2 specification, and is class 1
laser eye safety
Receiver Optical Performance Specifications:
(V
CC
=3.135 V to 3.465 V)
Parameter
Supply Current
Optical input sensitivity (avg.)
LC-1250AxFxRx
LC-1250BxQxRx
Optical input saturation (avg.)
LC-1250AxFxRx
LC-1250BxQxRx
Optical Wavelength
LC-1250AxFxRx
LC-1250BxQxRx
Output Data risetime
Output Data falltime
SD-Asserted Level (Avg.)
LC-1250AxFxRx
LC-1250BxQxRx
SD-Deasserted Level (Avg.)
LC-1250AxFxRx
LC-1250BxQxRx
Symbol
Icc
P
IN
P
SAT
λ
t
r
t
f
P
A
-30
-30
0.5
-3
-3
830
1274
860
1355
0.35
0.35
-17
-19
Min.
Typ.
Max.
120
-17
-19
Unit
mA
dBm
2
Notes
dBm
nm
ns
ns
dBm
1
1
P
D
dBm
dB
Signal detect- Hysteresis
P
A
-P
D
Notes:
1. These are unfiltered 20%~80% values.
2. The sensitivity is provided at a BER of 1×10
-10
or better with an input signal consisting of 1250 Mb/s,
3
DELTA ELECTRONICS, INC.
Sep., 2006
Rev. 0E
www.deltaww.com
LC-1250xxxxRx Series
2
7
-1 PRBS and ER=9dB.
Mask of the eye diagram for the optical transmit signal
Pin Out Table:
PIN (2X5)
1
2
3
4
5
6
7
8
9
10
Symbol
GND
RXV
CC
SD
RD (-)
RD (+)
TXV
CC
GND
Disable
TD (+)
TD (-)
Functional description
Receiver Signal Ground
Receiver Power Supply
Signal Detect
Receiver Data Out Bar (LVPECL)
Receiver Data Out (LVPECL)
Transmitter Power Supply
Transmitter Signal Ground
Transmitter Disable (LVTTL)
Transmitter Data In (LVPECL)
Transmitter Data In Bar (LVPECL)
Pin Out Drawing:
Tx
Rx
10 9 8 7 6
2x5 Module Top View
1 2 3 4 5
4
DELTA ELECTRONICS, INC.
Sep., 2006
Rev. 0E
www.deltaww.com
LC-1250xxxxRx Series
Recommend Circuit Schematic (LC-1250xxx1Rx)
VeeT
DELTA SFF Module
TxDis
Tx_Disable
VccT
82ohm
82ohm
0.1uF
50 ohm TXL
50 ohm TXL
0.1uF
130ohm
3.3V
1uH
0.1uF
130 ohm
TD+
Laser Driver
TD -
Laser Diode
VccT
SerDes IC
10uF
0.1uF
1uH
VccR
10uF
0.1uF
0.1uF
50 ohm TXL
100 ohm*
50 ohm TXL
0.1uF
150 ohm
RD+
Preamp &
Quantizer
RD -
150 ohm
Photo-diode
* Depands on SerDes IC used
SD
Rx_SD
VeeR
Note:
1. 270 Ohm SD Output pull-down resisters required for LVPECL SD Output.
2. No connected for TTL SD Output.
5
DELTA ELECTRONICS, INC.
Sep., 2006
Rev. 0E
www.deltaww.com
stm32/stm8
