V23818-N15-Lxx/Lxxx
(*)
Small Form Factor
Single Mode 1300 nm 2.5 GBd Transceiver
2x5/2x10 Pinning with LC™ Connector
Preliminary
Dimensions in mm [inches]
a) recommended bezel position
Drawing shown is 2x10 pinning with collar
FEATURES
• Small Form Factor transceiver
• RJ-45 style LC™ connector system
™
• Half the size of SC Duplex 1x9 transceiver
• Optimized for SDH STM-16 / SONET OC-48
• Single power supply (+3.3 V)
• Extremely low power consumption
• Loss of optical signal indicator
• Laser disable input
• PECL differential inputs and outputs
• Suitable for multi rate applications up to 2.5 GBd
• Distance up to 2 km on single mode fiber (SMF)
• Class 1 FDA and IEC laser safety compliant
• Multisource footprint
• Small footprint for high channel density
• UL 94 V-0 certified
• Compliant with FCC (Class B) and EN 55022
• Tx and Rx power monitor
LC™ is a trademark of Lucent
Fiber Optics
MARCH 2002
*) Ordering Information
Part Number
V23818-N15-L17
V23818-N15-L16
V23818-N15-L353
V23818-N15-L356
V23818-N15-L417
V23818-N15-L457
V23818-N15-L354
V23818-N15-L355
V23818-N15-L37
V23818-N15-L36
V23818-N15-L47
V23818-N15-L46
V23818-N15-L373
V23818-N15-L46WH
Input
DC
DC
AC
AC
DC
AC
AC
AC
DC
DC
AC
AC
AC
AC
Output
DC
DC
AC
AC
DC
AC
AC
AC
DC
DC
AC
AC
AC
AC
Signal
detect
PECL
PECL
TTL
TTL
PECL
TTL
TTL
TTL
PECL
PECL
TTL
TTL
PECL
TTL
Switched to Low
Active
Data Outputs if SD is Low
Switched to Low
Operating
Temperature
–5...70°C
–40...85°C
–5...70°C
–40...85°C
–5...70°C
–5...70°C
–5...70°C
–5...70°C
–5...70°C
–40...85°C
–5...70°C
–40...85°C
–5...70°C
–40...85°C
Collar
yes
yes
yes
yes
yes
yes
yes
no
yes
yes
yes
yes
yes
yes
Pinning
2x10
2x10
2x10
2x10
2x10
2x10
2x10
2x10
2x5
2x5
2x5
2x5
2x10
2x5
Absolute Maximum Ratings
Exceeding any one of these values may destroy the device
immediately.
Package Power Dissipation................................................0.9 W
Supply Voltage (V
CC
–V
EE
) ...................................................... 4 V
Data Input Levels........................................ V
CC
+0.5 to V
EE
–0.5
Differential Data Input Voltage ............................................ 2.5 V
PIN PDBias Voltage ............................................................... 4 V
Operating Case Temperature
(1)
...............................–5°C to 70°C
Operating Case Temperature
(2)
.............................–40°C to 85°C
Storage Ambient Temperature..............................–40°C to 85°C
Hand Lead Soldering Temp/Time.............................. 260°C/ 10 s
Wave Soldering Temp/Time ...................................... 260°C/ 10 s
Aqueous Wash Pressure ............................................... <110 psi
Notes
1. Not for V23818-N15-Lx6/Lxx6.
2. Only for V23818-N15-Lx6/Lxx6.
DESCRIPTION
The Infineon 2.5 Gigabit single mode transceiver – part of the
Infineon Small Form Factor transceiver family – is based on the
Physical Medium Depend (PMD) sublayer and baseband
medium, type 2000 Base-LX.
The appropriate fiber optic cable is 9 µm single mode fiber with
LC connector.
The Infineon OC-48 single mode transceiver is a single unit
comprised of a transmitter, a receiver, and an LC receptacle.
This design frees the customer from many alignment and PC
board layout concerns.
This transceiver supports the LC connectorization concept,
which competes with UTP/CAT 5 solutions. It is compatible
with RJ-45 style backpanels for fiber-to-the-desktop applica-
tions while providing the advantages of fiber optic technology.
The transmission distance is up to 2 km.
The module is designed for low cost LAN, WAN, and up to
2.5 Gbit/s applications. It can be used as the network end
device interface in mainframes, workstations, servers, and
storage devices, and in a broad range of network devices such
as bridges, routers, hubs, and local and wide area switches.
This transceiver operates at up to 2.5 Gbit/s from a single
power supply (+3.3 V). The full differential data inputs and
outputs are LVPECL compatible.
Fiber Optics
2
V23818-N15-Lxx/Lxxx, SFF SM 1300nm 2.5GBd Trx 2x5/2x10 (LC™)
Functional Description of SFF Transceiver
This transceiver is designed to transmit serial data via single
mode fiber.
Functional Diagram 2x10 Pin Rows
BMon-
BMon+
Automatic
Shut-Down
TDis
3k
TD-
TD+
Laser
Driver
Power
Control
PMon-
PMon+
RD-
RD+
SD
PDBias
Receiver
3k
10
3k
e/o
TECHNICAL DATA
The electro-optical characteristics described in the following
tables are valid only for use under the recommended operating
conditions.
Recommended Operating Conditions
Parameter
Symbol
T
C
V
CC
–V
EE
I
CCt
V
IH
–V
CC
–1165
250
–1810
Min.
–40
–5
3.14
3.3
Typ. Max.
85
70
3.46
110
–880
1600
–1475
120
ps
V
mA
mV
Unit
°C
Case Temperature
(1)
Case Temperature
(2)
Power Supply Voltage
Supply Current Tx
Transmitter
Tx
Coupling Unit
Laser
o/e
200
3k
Monitor
Rx
Coupling Unit
o/e
Single
Mode
Fiber
Data Input
High Voltage
AC-coupled Differential V
IDiff
Data Input
(3)
Data Input
Low Voltage
Data Input
Rise/Fall time
Receiver
Supply Current Rx
V
IL
–V
CC
t
i
Functional Diagram 2x5 Pin Rows
Automatic
Shut-Down
TDis
TD−
TD+
Laser
Driver
Power
Control
I
CCr
λ
RX
1260
120
1580
mA
nm
Tx
Coupling Unit
e/o
Input Center
Wavelength
Notes
Laser
o/e
1. Only for V23818-N15-Lx6/Lxx6.
2. Not for V23818-N15-Lx6/Lxx6.
Single
Mode
Fiber
Monitor
Rx
Coupling Unit
o/e
RD−
RD+
SD
Receiver
3. V23818-N15-L353/L356/L457/L354/L355/L47/L46/L373 are inter-
nally AC coupled. External coupling capacitors required only for
V23818-N15-L17/L16/L417/L37/L36.
The receiver component converts the optical serial data into an
electrical data (RD+ and RD
–
). The Signal Detect output (SD)
shows whether an optical signal is present.
The transmitter part converts electrical LVPECL compatible
serial data (TD+ and TD
–
) into optical serial data.
The module has an integrated shutdown function that switches
the laser off in the event of an internal failure.
Reset is only possible if the power is turned off, and then on
again. (V
CCt
switched below V
TH
).
The transmitter contains a laser driver circuit that drives the
modulation and bias current of the laser diode. The currents are
controlled by a power control circuit to guarantee constant out-
put power of the laser over temperature and aging. The power
control uses the output of the monitor PIN diode (mechanically
built into the laser coupling unit) as a controlling signal, to pre-
vent the laser power from exceeding the operating limits.
Fiber Optics
3
V23818-N15-Lxx/Lxxx, SFF SM 1300nm 2.5GBd Trx 2x5/2x10 (LC™)
Transmitter Electro-Optical Characteristics
Transmitter
Output Power
(Average)
(1)
Output Power
(Average)
(2)
Center Wavelength
Spectral Width (RMS)
Extinction Ratio
(Dynamic)
Eye Diagram
Reset Threshold for
V
CCt
(3)
Power on Delay
(3)
Jitter Generation
Rise Time
(4)
Fall Time
(4)
T
Dis
Assert Voltage TTL
λ
C
σ
Receiver Electro-Optical Characteristics
Max.
–3
–3
1360
4
nm
dB
Unit
dBm
Receiver
Sensitivity
Average Power)
(1)
Saturation
(Average Power)
Signal Detect
Assert Level
(2)
Signal Detect
Deassert Level
(3)
Signal Detect
Hysteresis
Signal Detect
Assert Time
(2)
UI
Signal Detect
Deassert Time
(3)
Output Voltage
(4)
70
225
ps
Output Voltage
(4)
Output Voltage
Swing
Signal Detect Out-
put High Voltage
PECL
(5,6)
Signal Detect Out-
put Low Voltage
PECL
(5,6)
Signal Detect Out-
put High Voltage
TTL
(5,7)
Signal Detect Out-
put Low Voltage
TTL
(5,7)
Photo Detector
Bias
(8)
Reflectance
Notes
1. Minimum average optical power at which the BER is less than
1x10
–10
. Measured with a 2
23
–
1 NRZ PRBS as recommended by
ANSI T1E1.2, SONET OC-48, and ITU-T G.957
.
2. An increase in optical power above the specified level will cause the
Signal Detect to switch from a low state to a high state (high active
output).
3. A decrease in optical power below the specified level will cause the
Signal Detect to switch from a high state to a low state.
4. Load is 100
Ω
differential.
5. Internal Load is 510
Ω
to GND, no external load necessary. Signal
Detect is a high active output. High level means signal is present,
low level means loss of signal.
6. For V23818-N15-L17/L16/L417/L37/L36/L373.
7 For V23818-N15-L353/L356/L457/L354/L355/L47/L46.
.
8. Monitor current needs to be sunk to V
CC
.
Symbol
P
O
Min. Typ.
–10
–8
1266
8.2
Symbol
Min.
Typ.
Max.
–19
Unit
dBm
P
SAT
P
SDA
P
SDD
P
SDA
-
P
SDD
t
ASS
t
DAS
–3
–19
–30
3
0.1
0.35
–650
–1300
1000
V
CC
–820
V
CC
–1620
V
mV
mV
dB
ms
ER
ED
V
TH
ITU-T G.957 mask pattern
2.2
30
2.99
V
ms
t
DEL
J
GE
p-p
J
GE
RMS
t
R
t
F
V
TDH
2.0
V
OH
–V
CC
–1110
V
OL
–V
CC
–1800
V
OH
–V
OL
500
V
SDH
–
V
EE
V
SDL
–
V
EE
V
SDH
V
CC
–1200
V
CC
–1900
2.0
V
0.8
0.4
0.06
1
10
ms
µs
T
Dis
Deassert Voltage TTL
V
TDL
T
Dis
Assert Time
(5)
t
ASS
T
Dis
Deassert Time
(6)
Notes
1. Not for V23818-N15-L354/L355.
2. Only for V23818-N15-L354/L355.
t
DAS
3. Laser power is shut down if power supply is below V
TH
and
switched on if power supply is above V
TH
after t
DEL
.
4. Measured using 20%–80% levels without bandwidth filtering.
5. T
Dis
assertion to laser shutdown.
6. T
Dis
reassertion to laser startup.
V
SDL
0.5
PDBias
P
REF
0.5
–33
1.0
–27
A/W
dB
Jitter
The transceiver is specified to meet the SONET Jitter perfor-
mance as outlined in ITU-T G.958 and Telcordia GR-253.
Jitter Generation is defined as the amount of jitter that is gener-
ated by the transceiver. The Jitter Generation specifications are
referenced to the optical OC-48 signals. If no or minimum jitter
is applied to the electrical inputs of the transmitter, then Jitter
Generation can simply be defined as the amount of jitter on the
Tx optical output. The SONET specifications for Jitter Genera-
tion are 0.01 UI rms, maximum and 0.1 UI p-p, maximum. Both
are measured with a 12 KHz – 20 MHz filter in line. A UI is a
Unit Interval, which is equivalent to one bit slot. At OC-48, the
bit slot is 400 ps, so the Jitter Generation specification trans-
lates to 4 ps rms, max. and 40 ps p-p, max.
Fiber Optics
4
V23818-N15-Lxx/Lxxx, SFF SM 1300nm 2.5GBd Trx 2x5/2x10 (LC™)
Regulatory Compliance
Feature
ESD:
Electrostatic
Discharge to the
Electrical Pins
Immunity:
Against Electro-
static Discharge
(ESD) to the
Duplex LC
Receptacle
Standard
Comments
EIA/JESD22-A114-A Class 1 (>1000 V)
(MIL-STD 883D
Method 3015.7)
EN 61000-4-2
IEC 61000-4-2
Discharges ranging
from
±2
kV to
±15
kV on
the receptacle cause no
damage to transceiver
(under recommended
conditions).
With a field strength of
3 V/m rms, noise
frequency ranges from
10 MHz to 2 GHz. No
effect on transceiver
performance between
the specification limits.
EYE SAFETY
This laser based single mode transceiver is a Class 1 product.
It complies with IEC 60825-1 and FDA 21 CFR 1040.10 and
1040.11.
The transceiver has been certified with FDA under accession
number 9520890.
To meet laser safety requirements the transceiver shall be oper-
ated within the Absolute Maximum Ratings.
Caution
All adjustments have been made at the factory prior to ship-
ment of the devices. No maintenance or alteration to the
device is required.
Tampering with or modifying the performance of the device
will result in voided product warranty.
Note
Failure to adhere to the above restrictions could result in a modifica-
tion that is considered an act of “manufacturing”, and will require,
under law, recertification of the modified product with the U.S. Food
and Drug Administration (ref. 21 CFR 1040.10 (i)).
Immunity:
EN 61000-4-3
Against Radio Fre- IEC 61000-4-3
quency Electro-
magnetic Field
Emission:
FCC 47 CFR Part 15, Noise frequency range:
Electromagnetic
Class B
30 MHz to 18 GHz
Interference (EMI) EN 55022 Class B
CISPR 22
Laser Data
Wavelength
Total output power (as defined by IEC: 7 mm
aperture at 14 mm distance)
Total output power (as defined by FDA: 7 mm
aperture at 20 cm distance)
Beam divergence
1300 nm
less than
2 mW
less than
180 µW
t.b.d.
Required Labels
FDA
Complies with 21 CFR
1040.10 and 1040.11
IEC
Class 1 Laser Product
Laser Emission
Indication of
laser aperture
and beam
Tx
Rx
20 19 18 17 16 15 14 13 12 11
TOP VIEW
1 2 3 4 5 6 7 8 9 10
Fiber Optics
5
V23818-N15-Lxx/Lxxx, SFF SM 1300nm 2.5GBd Trx 2x5/2x10 (LC™)
RF/Wirelessly
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