2.5 Gbps Single Mode SFF LC Transceiver
C-1X-2500(C)-FDFB-SLC4
Features
• Duplex LC Single Mode Transceiver
• Small Form Factor Multi-sourced 2x5 Pin Package
• Complies with SONET OC48 / SDH STM-16
• 1310 nm / 1550 nm Wavelength, DFB Laser
• Single +3.3V Power Supply
• LVPECL / CML Differential Inputs and Outputs
• LVTTL Signal Detection Output (C-1X-2500C-FDFB-SLC4)
• LVPECL Signal Detection Output (C-1X-2500-FDFB-SLC4)
• LVTTL Tx Disable Input
• Temperature Range: 0 to 70 ºC
• Class 1 Laser International Safety Standard IEC 825
Compliant
• Solderability to MIL-STD-883, Method 2003
• Pin Coating is Sn / Pb with minimum 2% Pb content
• Flammability to UL94V0
• Humidity RH 5-85% (5-95% short term) to IEC 68-2-3
• Complies with Bell core GR-468
• Uncooled laser diode with MQW structure
Absolute Maximum Rating
Parameter
Power Supply Voltage
Output Current
Soldering Temperature
Storage Temperature
Symbol
V
cc
I
out
-
T
stg
Min.
0
0
-
-40
Max.
3.6
30
260
85
Unit
V
mA
ºC
ºC
10 seconds on leads only
Note
Recommended Operating Condition
Parameter
Power Supply Voltage
Operating Temperature
Data rate
Transmitter Specifications
Parameter
Optical
Optical Transmit Power
Output center Wavelength
Output center Wavelength
Output Spectrum Width
Side Mode Suppression Ratio
Extinction Ratio
Output Eye
Optical Rise Time
Optical Fall Time
Relative Intensity Noise
Total Jitter
tr
tf
RIN
TJ
P
o
λ
λ
∆λ
Sr
ER
0
1260
1500
-
30
8.2
-
-
-
-
-
1310
1550
-
35
-
-
-
-
-
+5
1360
1580
1
-
-
130
130
-120
0.18
dBm
nm
nm
nm
dBm
dB
ps
ps
dB/Hz
ns
Measured with 2
23
-1 PRBS with 72 ones and
72 zeros
20% to 80% Values
20% to 80% Values
C-13-2500(C)-FDFB-SLC4
C-15-2500(C)-FDFB-SLC4
-20 dB width
CW, Po=5mW
Symbol
Min
Typical
Max
Unit
Notes
Symbol
V
cc
T
opr
Min.
3.1
0
-
Typ.
3.3
-
2488
Max.
3.5
70
-
Unit
V
ºC
Mbps
Compliant with GR-253-CORE
LUMINENTOIC.COM
20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486
9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213
1
LUMNDS814-Apr2605
rev. A.0
2.5 Gbps Single Mode SFF LC Transceiver
C-1X-2500(C)-FDFB-SLC4
Transmitter Specifications
Parameter
Electrical
Power Supply Current
TX_DISABLE Input Voltage-Low
TX_DISABLE Input Voltage-High
Data Input Voltage-Single Ended
I
cc
V
IL
V
IH
V
DIN
-
0
2
250
-
-
-
160
0.8
Vcc
1200
mA
V
V
mV (p-p)
Maximum current is specified at
Vcc= Maximum @ maximum temperature
Transmitter on
Transmitter Disabled
AC coupled inputs
Symbol
Min
Typical
Max
Unit
Notes
Receiver Specifications
Parameter
Optical
Sensitivity
Maximum Input Power
Signal Detect-Asserted
Signal Detect-Deasserted
Signal Detect-Hysteresis
Wavelength of Operation
Reflectance
-
P
in
Pa
Pd
Pa-Pd
-
0
-
-38
1
1100
-
-
-
-
-
-
-
-
-20
-
-20
-
-
1600
-27
dBm
dBm
dBm
dBm
dB
nm
dB
Measured on transition: low to high
Measured on transition: high to low
Measured with 2
23
-
1 PRBS, BER = 10
-10
Symbol
Min
Typical
Max
Unit
Notes
Receiver Specifications
Parameter
Electrical
Power Supply Current
Data Output Voltage-Single-ended
Signal Detect Output Voltage-Low
Signal Detect Output Voltage-High
Signal Detect Output Voltage-Low
Signal Detect Output Voltage-High
I
CC
V
OH
-
V
oL
V
SDL-
V
cc
V
SDH-
V
cc
V
SDL-
V
cc
V
SDH-
V
cc
-
300
-2.0
-1.1
-
2.0
-
-
-
-
-
-
100
900
-1.58
-0.74
0.5
-
mA
mV
V
V
V
V
The current excludes the output load
current
AC coupled
C-1X-2500-FDFB-SLC4
C-1X-2500C-FDFB-SLC4
Symbol
Min
Typical
Max
Unit
Note
LUMINENTOIC.COM
20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486
9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213
2
LUMNDS814-Apr2605
rev. A.0
2.5 Gbps Single Mode SFF LC Transceiver
C-1X-2500(C)-FDFB-SLC4
Connection Diagram
Legal Notice
PIN
1
2
3
4
5
6
7
8
9
10
Symbol
RxGND
TxVcc
SD
RD-
RD+
TxVcc
TxGND
TxDIS
TD+
TD-
Notes
Directly connect this pin to the receiver ground plane
+3.3 V dc power for the receiver section
Active high on this indicates a received optical signal(LVPECL/LVTTL)
Receiver Data Out Bar (LVPECL)
Receiver Dat Out (LVPECL)
+3.3 V dc power for the transmitter section
Directly connect this pin to the transmitter ground plane
Transmitter disable (LVTTL)
Transmitter Data In (LVPECL)
Transmitter Data In Bar (LVPECL)
The attaching posts are at case potential and may be connected to chassis
ground. They are isolated from circuit ground.
Attaching Posts
LUMINENTOIC.COM
20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486
9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213
3
LUMNDS814-Apr2605
rev. A.0
2.5 Gbps Single Mode SFF LC Transceiver
C-1X-2500(C)-FDFB-SLC4
Recommended Circuit Schematic
Inputs to the C-1X-2500(C)-FDFB-SLC4 series transmitters are AC coupled and internally terminated through 50 ohms to AC ground.
These transceivers can operate with LVPECL or CML logic levels. The input signal must have at least a 200 mV peak to (single ended) signal
swing. Output from the receiver section of the module is also AC coupled and is expected to drive into 50 ohm load. Different termination
strategies may be required depending on the particular Serializer / Deserializer chip set used.
The C-1X-2500(C)-FDFB-SLC4 series product family are designed with AC coupled data inputs and outputs to provide the following
advantages:
■
Close positioning of SERDES with respect to transceiver; allows for shorter line lengths and at gigabit speeds reduces EMI.
■
Minimum number of external components.
■
Internal termination reduces the potential for unterminated stubs which would otherwise increase jitter and reduce transmission margin.
Figure 1 & Figure 2 illustrates the recommended transmit and receive data line trminations for SERDES with CML and LVPECL Inputs / Outputs
respectively.
TTL logic level
½
½
½
Serializer / De-Serializer
with CML lnputs/Outputs
½
Figure 1.Recommended TRANSMIT and RECEIVE Data Terminations for SERDES with CML I/Os.
Note 1. Consult SERDES manufacturer’s data sheet and application data for appropriate receiver input biasing network.
Some deserializer inputs are internally terminated and may not need external termination resistors.
LUMINENTOIC.COM
20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486
9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213
4
LUMNDS814-Apr2605
rev. A.0
2.5 Gbps Single Mode SFF LC Transceiver
C-1X-2500(C)-FDFB-SLC4
TTL logic level
TRANSMITTER
½
½
o e
N t
1
No e
t 1
Serializer / De-Serializer
with LVPECL lnputs/Outputs
Vcc= +3.3V
½
82
Ω
82
Ω
½
130
Ω
130
Ω
Figure 2.Recommended TRANSMIT and RECEIVE Data Terminations for SERDES with LVPRCL I/Os.
Note 1. Consult SERDES manufacturer’s application information for biasing required for Tx outputs. Some serializer outputs
are internally biased and may not need external bias resistors.
Signal Detect
The C-1X-2500(C)-FDFB-SLC4 transceivers are equipped with LVTTL / LVPECL signal detect outputs. The standard LVTTL output eliminates
the need for a LVPECL to LVTTL level shifter in most in most applications.
R2
LVPECL
or
LVTTL Logic
R1
R: For LVTTL level R1=N.C., R2=N.C.
LVPECL level R1=82
,R2=130
Figure 3: Signal Detect
LUMINENTOIC.COM
20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486
9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213
5
LUMNDS814-Apr2605
rev. A.0
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