LxK-CTxxx LOW PROFILE
OPTICAL TRANSCEIVER
GigE/1xFC (1.0625 - 1.25Gbps)
3.3V, 1500nm band DFB Laser, Singlemode,
Up to 10.0 Km
PRELIMINARY
FEATURES
• Low Profile Design - 0.386 inches max. height
• Surface mount I/O pins for high speed signal integrity
• All metal body, solder or screw mount options
• Industrial Temp Range, Vibration tolerant design
• RX data squelch on Signal Detect deassert
• Individual (separate) +3.3 V power supply per port
• Industry standard duplex singlemode LC receptacle
• EN-60825/ IEC-825 / CDRH Class 1 Compliant
• Optional Parylene C Conformal Coating
APPLICATIONS
The LxK-CTxxx singlemode optical fiber transceivers
provide low profile, cost effective solutions for GigE and 1xFX
CWDM (singlemode) optical fiber data links with a duplex LC
connector interface.
These transceivers are fully compliant with the GigE and
1xFC data rates, but can be used for any other data com-
munications purpose within their operating parameters.
DESCRIPTION
BLOCK DIAGRAM
CML
DRIVER
RX+
RX-
SD
CML
BUFFER
SIGNAL
DETECT
BASELINE
REFERENCE
LEVEL
DETECT
LASER
PIN AND TIA
L
C
I
N
T
E
R
F
A
C
E
The LxK-CTxxx fiber optic transceivers consist of trans-
mitter and receiver functions combined in an RJ Format
module. The optical transmitter is a DFB CWDM compli-
ant laser in the 1500nm band. The transmitter input lines
are driven with differential LVPECL signals applied to the
Transmit (TX+ and TX-) pins. These signals are internally
converted to a suitable modulation current by a CMOS
integrated circuit. A Transmit Disable (TDIS) function is
provided to enable control of the optical output.
The optical receivers consist of PIN and Preamplifier
assemblies and CMOS limiting post-amplifier integrated
circuits. Outputs from the receivers consist of differential
CML data signals on the Receive (RX+ and RX-) pins and
a single ended LVTTL signal detect function on the Signal
Detect (SD) pin. The RX data is squelched (JAM) upon
Signal Detect deassert to prevent garbage data output
when no optical signal is present.
TDIS
TX-
TX+
LASER
DRIVER
CASE
ORDERING INFORMATION
L
Product
Family
L=
Low Profile
RJ XCVR
X
Shell
Options
K
Application
-
C T XX
Optical Wavelength,
Signal Detect, Fiber
CTXX=
1500nm band DFB,
Singlemode,
LVTTL Signal Detect
XX
is the specific DFB
wavelength (from table,
last data sheet page)
X
Temperature
and Coating
H=
-20 to 85 C,
No Coating
M=
-20 to 85 C,
Conformal
Coating
X
Mounting
BLANK=
Solder Posts
(0.125 length)
B=
Screw Posts
(0.050 length)
K=
N=
No GND Tabs GigE / 1xFC
(1.0625 Gbps
(Flat Shell)
- 1.25 Gbps)
T=
GND Tabs
TDS-DFB216K-002P
Noivember 3, 2005
7444 West Wilson Avenue, Chicago, IL 60706 USA
Telephone: 708.867-9600, Fax: 708867-0996
Webpage: www.stratoslightwave.com
LxK-CTxxx LOW PROFILE OPTICAL TRANSCEIVER
GigE/1xFC (1.0625Gbps - 1.25Gbps) Applications
3.3V, 1500nm band DFB Laser, Singlemode, Up to 10.0 Km
PRELIMINARY
ABSOLUTE MAXIMUM RATINGS
Absolute maximum limits mean that no catastrophic damage will occur if the product is subjected to these ratings for short periods,
provided each limiting parameter is in isolation and all other parameters have values within the performance specification. It should
not be assumed that limiting values of more than one parameter can be applied to the product at the same time.
Parameter
Storage Temperature
Lead Soldering Temperature
Lead Soldering Time
Supply Voltage
Data Input Voltage
Differential Input Voltage (p-p)
Output Current
Symbol
T
S
T
SOLD
t
SOLD
V
CC
V
I
V
D
I
O
Minimum
-55
Typical
Maximum
+100
+260
10
Unit
°C
°C
Seconds
V
V
V
mA
-0.5
-0.5
+4.5
V
CC
2.0
50
RECOMMENDED OPERATING CONDITIONS
Parameter
Operating Temperature Limit
Supply Voltage
TX Common Mode Voltage
TX Differential Input Voltage (p-p)
Transmit Disable Voltage
Transmit Enable Voltage
RX Data Output Load
Symbol
T
A
V
CC
V
CM
V
D
V
TD
V
TEN
R
L
Minimum
-20
+3.135
Typical
Maximum
+85
+3.465
Unit
°C
V
V
V
V
V
Ohms
2.0
0.20
2.0
V
EE
50
1.25
V
CC
0.8
DETAIL OF DATA I/O STAGES
V
CC
V
CC
ESD
STRUCTURES
16K
V
CC
50
Ω
50
Ω
RD+
RD-
FP Laser Drive
TD +
50
V
CC
50
TD -
24K
TD +/- LVPECL Input Stage
GND
RD+/- CML Output Stage
7444 West Wilson Avenue, Chicago, IL 60706 USA
Telephone: 708.867-9600, Fax: 708867-0996
Webpage: www.stratoslightwave.com
TDS-DFB216K-002P
November 3, 2005
2
LxK-CTxxx LOW PROFILE OPTICAL TRANSCEIVER
GigE/1xFC (1.0625Gbps - 1.25Gbps) Applications
3.3V, 1500nm band DFB Laser, Singlemode, Up to 10.0 Km
PRELIMINARY
VCCTX = 3.135V to 3.465V, T
A
= Operating Temperature Range
Parameter
Symbol Minimum
Typical
Optical Output Power
1
Optical Output Wavelength (from nominal)
Spectral Width
Extinction Ratio
Supply Current
Optical Rise / Fall Time (20% - 80%)
Relative Intensity Noise
Total Jitter
Transmit Disable Voltage
Optical Modulation Amplitude (p-p)
Transmit Enable Voltage
1. BER=10
-12
TRANSMITTERS
Maximum
+3
+9
1
Unit
dBm
nm
nm
dB
mA
nS
dB/Hz
pS
V
µW
V
P
o
λ
OUT
∆λ
RMS
ER
I
CC
t
R,F
RIN
Tj
V
D
OMA
V
EN
-1
-9
1
9
150
200
0.15
-116
85
2.0
186
V
EE
0.8
V
CC
@ 1.25Gbps, PRBS 2 -1, NRZ
7
RECEIVERS
Parameter
Optical Sensitivity
1
VCCRX = 3.135V to 3.465V, T
A
= Operating Temperature Range
Symbol
P
I
OMA
λ
IN
ORL
I
CC
t
SDAS
t
SDDA
SD
OFF
SD
ON
HYS
V
OL -
V
CC
V
OH -
V
CC
1.5
-1.810
-1.165
2.25
-20.5
-19
3.5
-1.475
-0.880
Minimum
-19
24
1460
12
Typical
-20
Maximum
0
1620
Unit
dBm
µW
nm
dB
mA
µS
µS
dBm
dBm
dB
V
V
Optical Modulation Amplitude(p-p)
Optical Input Wavelength
Optical Return Loss
Supply Current
Signal Detect Assert Time
Signal Detect Deassert Time
Signal Detect Deassert Level
2
Signal Detect Assert Level
Signal Detect Hysteresis
RX Data Output - Low
RX Data Output - High
70
<10
<10
120
100
350
1. BER=10
-12
@ 1.25Gbps, PRBS 2
7
-1, NRZ
2. RX Data outputs are squelched when Signal Detect is deasserted to prevent garbage data output when no optical signal is present.
7444 West Wilson Avenue, Chicago, IL 60706 USA
Telephone: 708.867-9600, Fax: 708867-0996
Webpage: www.stratoslightwave.com
TDS-DFB216K-002P
November 3, 2005
3
LxK-CTxxx LOW PROFILE OPTICAL TRANSCEIVER
GigE/1xFC (1.0625Gbps - 1.25Gbps) Applications
3.3V, 1500nm band DFB Laser, Singlemode, Up to 10.0 Km
PRELIMINARY
CONFORMAL COATING OPTION
Parameter
Specification
Coating:
Deposition:
Film Tickness:
Value
MIL-I-46058C, Type XY
Parylene type C
Vacuum deposited
1 MIL +/- 0.0002
REGULATORY COMPLIANCE
Requirement
MIL-STD-883-3015.7
IEC-801-2
IEC-801-3
FCC
EN 55022 (CISPR 22A)
IEC-825 Issue 1993-11
FDA CDRH 21-CFR 1040
Feature
ESD
ESD
EMI
EMI
EMI
Eye Safety
Eye Safety
Condition
Class II
Human Body Model
Immunity
Class B
Class B
Class 1
Class 1
Notes
2200V
25KV
10V/M
>20dB
10V/M
TUV Certificate Number PENDING
CDRH Accession Number PENDING
File Number: Pending
EN 60 950
EN 60 825-1
EN 60 825-2
File Number: Pending
7444 West Wilson Avenue, Chicago, IL 60706 USA
Telephone: 708.867-9600, Fax: 708867-0996
Webpage: www.stratoslightwave.com
TDS-DFB216K-002P
November 3, 2005
4
LxK-CTxxx LOW PROFILE OPTICAL TRANSCEIVER
GigE/1xFC (1.0625Gbps - 1.25Gbps) Applications
3.3V, 1500nm band DFB Laser, Singlemode, Up to 10.0 Km
PRELIMINARY
Low Profile Optical Transceiver
Top View Shown
Pin 1
Pin 10
PIN FUNCTIONS
Pin Number
GP
1
2
3
4
5
Symbol
GP
TD+
VEETX
TD–
VCCTX
SD
Description
Grounding Posts
Connect to chassis ground
Logic Family
N/A
LVPECL
N/A
LVPECL
N/A
LVTTL
Transmitter DATA In
Transmitter Signal Ground
Transmitter DATA In
Transmitter Power Supply
Signal Detect output
Satisfactory Optical Input: Logic “1” Output
Fault Condition: Logic “0” Output
6
TDIS
Transmit Disable input
Logic 1 = Disable Optical Output
Logic 0 = Enable Optical Output
Internal 4.7K ohm pull-down (enable)
LVTTL
7
8
9
10
RD+
VCCRX
RD-
VEERX
Receiver DATA Out
Receiver Power Supply
Receiver DATA Out
Receiver Signal Ground
CML
N/A
CML
N/A
7444 West Wilson Avenue, Chicago, IL 60706 USA
Telephone: 708.867-9600, Fax: 708867-0996
Webpage: www.stratoslightwave.com
TDS-DFB216K-002P
November 3, 2005
5
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