V23818-N15-L373 [INFINEON]
Transceiver, Through Hole Mount;
| 型号： | V23818-N15-L373 |
| 厂家： | 
Infineon |
| 描述： | Transceiver, Through Hole Mount 光纤 |
| 文件： | 总11页 (文件大小：405K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
V23818-N15-Lx(*)
Sm all Form Factor
Single Mode 1300 nm 2.5 GBd Transceiver
2x5/2x10 Pinning w ith LC™ Connector
Prelim inary
Dimensions in mm [inches]
a) recommended bezel position
show n design w ith collar and 2x10 pinning
*) Ordering Inform ation
In-
Out- Signal Data
Volt- Col- Pin- Part Num ber
put
put
detect Outputs age lar ning
if SD is
Low
V23818-N15-
DC
AC
DC
AC
AC
AC
DC
AC
AC
DC
AC
DC
AC
AC
AC
DC
AC
AC
PECL Switched 3.3 V yes
to Low
2x10 -L17
TTL
yes
yes
yes
yes
no
2x10 -L353
2x10 -L417
2x10 -L457
2x10 -L354
2x10 -L355
PECL Noisy
TTL
TTL
Switched
to Low
TTL
PECL
TTL
yes
yes
yes
2x5
2x5
-L37
-L47
PECL
2x10 -L373
LC™ is a tradem ark of Lucent
Fiber Optics
OCTOBER 2001
FEATURES
On the parts V23818-N15-L417/L457
the data outputs are not switched by the Signal Detect. During
absence of light the data outputs are noisy with PECL ampli-
tude.
• Sm all Form Factor transceiver
• RJ -45 style LCu connector system
• Half the size of SC Duplex 1x9 transceiver
• Optim ized for SDH STM-16 / SONET OC-48
• Single power supply (+3.3 V)
• Extrem ely low power consum ption
• Loss of optical signal indicator
• Laser disable input
• PECL differential inputs and outputs
• Distance up to 2 km on Single Mode Fiber
• Class 1 FDA and IEC laser safety com pliant
• Multisource footprint
On the parts V23818-N15-L354/L355
the minimum guaranteed link budget is 2 dB higher.
Functional Description of SFF Transceiver
This transceiver is designed to transmit serial data via single
mode fiber.
Functional Diagram 2x10 Pin Row s
BIASMON
-
BIASMON+
Automatic
Shut-Down
• Sm all footprint for high channel density
• UL 94 V-0 certified
• Com pliant w ith FCC (Class B) and EN 55022
• Tx and Rx power m onitor
Laser
Coupling Unit
TxDis
3k
3k
e/o
Laser
TxDn
TxD
Laser
Driver
10
o/e
Power
Control
Absolute Maxim um Ratings
Single
Mode
Fiber
TxPMon
Exceeding any one of these values may destroy the device
immediately.
Rx
Coupling Unit
Receiver
RxDn
o/e
RxD
SD
Package Power Dissipation................................................ 1.5 W
Supply Voltage (V –V ) ...................................................... 4 V
CC EE
RxPMon
Data Input Levels ........................................ V +0.5 to V –0.5
CC
EE
Differential Data Input Voltage ............................................ 2.5 V
Operating Case Temperature ....................................0°C to 70°C
Storage Ambient Temperature..............................–40°C to 85°C
Soldering Conditions Temp/Time .............................250°C/ 5.5 s
Functional Diagram 2x5 Pin Row s
Automatic
Shut-Down
Laser
Coupling Unit
DESCRIPTION
TxDis
e/o
Laser
The Infineon 2.5 Gigabit single mode transceiver - part of
Infineon Small Form Factor transceiver family - is based on the
Physical Medium Depend (PMD) sublayer and baseband
medium, type 2000 Base-LX
TxDn
TxD
Laser
Driver
o/e
Power
Control
Single
Mode
Fiber
Rx
The appropriate fiber optic cable is 9 µm single mode fiber with
LC connector.
Coupling Unit
Receiver
RxDn
o/e
RxD
SD
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.
2x10/2x5 Pin Rows
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 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 PECL compatible serial
data (TD+ and TD–) into optical serial data.
The module is designed for low cost LAN, WAN, and OC-48
and STM-16 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.
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 Tx switched below V ).
CC
TH
2x10 Pin Rows
This transceiver operates at 2.5 Gbit/s from a single power
supply (+3.3 V). The full differential data inputs and outputs are
PECL compatible.
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.
On the parts V23818-N15-L17/L353/L354/L355/L37/L47/L373
the data output stages are switched to static levels during
absence of light, as indicated by the Signal Detect function.
Fiber Optics
V23818-N15-Lx, SFF SM 1300nm 2.5GBd 2x5/2x10 Trx (LC™)
2
TECHNICAL DATA
Generation can simply be defined as the amount of jitter on the
Tx optical output. The Sonet specifications for Jitter Generation
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 translates
to 4 ps rms, max. and 40 ps p-p, max.
The electro-optical characteristics described in the following
tables are valid only for use under the recommended operating
conditions.
Recom m ended Operating Conditions
Param eter
Sym bol Min.
Typ. Max. Units
Case Temperature
Power Supply Voltage
Supply Current
Transm itter
T
0
70
3.3 3.45
230
°C
V
Receiver Electro-Optical Characteristics
C
V
–V
3.15
CC EE
Receiver
Sym bol Min. Typ.
Max. Units
I
mA
CC
Sensitivity (Average
Power)
P
–18
dBm
N
(1,9)
Sensitivity (Average
Power)
–19
Data Input
V
–V
–1165
250
–880 mV
1600
IH CC
(1,10)
High Voltage
Saturation (Average
Power)
P
P
P
–3
AC-coupled differential
Data Input
V
IDiff
SAT
SDA
SDD
(1)
Data Input
Low Voltage
V –V
–1810
–1475
Signal Detect
–18
IL CC
(2)
Assert Level
Data Input
Rise/Fall time
t
i
120
ps
Signal Detect
Deassert Level
–30
(3)
Receiver
Signal Detect
Hysteresis
P
P
-
3
dB
ms
SDA
SDD
Input Center
Wavelength
λ
1260
1580 nm
RX
Signal detect
t
0.1
ASS
(2)
Asserttime
Note
Signal detect
Deasserttime
t
0.35
1. V23818-N15-L353/L457/L354/L355/L47/L373 is internally AC-cou-
pled. External coupling capacitors required only for V23818-N15-L17/
L417/L37.
DAS
(3)
(4)
Output Voltage
V
–V
–1110
–1800
500
–650
–1300
1000
mV
mV
OH CC
(4)
Output Voltage
V
–V
OL CC
Transm itter Electro-Optical Characteristics
Output Voltage
V
–V
OH OL
Transm itter
Sym bol Min. Typ. Max. Units
(4)
Swing
Output Power
(Average)
P
–10
–3
dBm
O
Signal detect Out-
put High Voltage
PECL
V
–
V
–1200
V
CC
(2)
SDH
CC
V
–820
EE
(5,7)
Output Power
–8
–3
(3)
(Average)
Signal detect Out-
put Low Voltage
V
–
V
V
CC
–1620
SDL
CC
Center Wavelength
λ
σ
1266
1360 nm
V
–1900
C
EE
(5,7)
PECL
Spectral Width (RMS)
4
Signal detect Out-
put High Voltage
V
2.0
V
SDH
Extinction Ratio
(Dynamic)
ER
8.2
dB
(5,8)
TTL
Eye Diagram
ITU-T G.957 mask pattern
ED
Signal detect Out-
put Low Voltage
TTL
V
0.5
1.0
SDL
Reset Threshold for
V
2.2
2.99
V
TH
(1)
(5,8)
TxV
CC
(1)
(6)
Power on Delay
30
ms
UI
Rx-Monitor
Rx-Mon
0.5
A/W
t
DEL
Jitter Generation
0.06 0.08
JGEp-p
Notes
1. Minimum average optical power at which the BER is less than 1 x 10
E–10. Measured with a 223–1 NRZ PRBS as recommended by ANSI
T1E1.2, SONET OC-48, and ITU-T G.957.
0.006 0.008
JGERMS
Notes
1. Laser power is shut down if power supply is below V and
TH
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)
switched on if power supply is above V after t
TH
.
RES
2. Not for V23818-N15-L354/L355.
3. Only for V23818-N15-L354/L355.
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.
J itter
4. Load is 100 Ω differential.
The transceiver is specified to meet the Sonet Jitter perfor-
mance as outlined in ITU-T G.958 and Bellcore GR-253.
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.
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
6. Monitor current needs to be sunk to V
.
CC
7. for V23818-N15-L17/L417/L37/L373.
8. for V23818-N15-L353/L457/L354/L355/L47.
Fiber Optics
V23818-N15-Lx, SFF SM 1300nm 2.5GBd 2x5/2x10 Trx (LC™)
3
9. Not for V23818-N15-L354/L355.
10.Only for V23818-N15-L354/L355.
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.
Regulatory Com pliance
Feature
Standard
Com m ents
The transceiver has been certified with FDA under accession
number 9520890-29.
ESD:
EIA/JESD22-A114-A Class 1 (>1000 V)
(MIL-STD 883D
Method 3015.7)
Electrostatic
Discharge to the
Electrical Pins
To meet laser safety requirements the transceiver shall be oper-
ated within the Absolute Maximum Ratings.
Immunity:
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).
Caution
Against Electro-
static Discharge
(ESD) to the
Duplex LC
All adjustm ents have been m ade at the factory prior to ship-
m ent of the devices. No m aintenance or alteration to the
device is required.
Tam pering w ith or m odifying the perform ance of the device
w ill result in voided product warranty.
Receptacle
Immunity:
Against Radio Fre- IEC 61000-4-3
quency Electro-
EN 61000-4-3
With a field strength of
3 V/m rms, noise
Note
frequency ranges from
10 MHz to 2 GHz. No
effect on transceiver
performance between
the specification limits.
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)).
magnetic Field
Laser Data
Emission:
Electromagnetic
Interference (EMI) EN 55022 Class B
CISPR 22
FCC 47 CFR Part 15, Noise frequency range:
Class B 30 MHz to 18 GHz
Wavelength
1300 nm
Total output power (as defined by IEC: 7 mm
aperture at 14 mm distance)
less than
2 mW
Total output power (as defined by FDA: 7 mm
aperture at 20 cm distance)
less than
180 µW
Beam divergence
Required Labels
FDA
tbd
IEC
Complies with 21 CFR
1040.10 and 1040.11
Class 1 Laser Product
Laser Em ission
Indication of
laser aperture
and beam
Tx
20 19 18 17 16 15 14 13 12 11
1
2 3 4 5 6 7 8 9 10
Rx
Fiber Optics
V23818-N15-Lx, SFF SM 1300nm 2.5GBd 2x5/2x10 Trx (LC™)
4
Pin Description
Pin Nam e
Level
Pin#
Description
2x10 Transceiver
RxPMon Rx Power Monitor Analog Current
1
Do not connect if not used. See application note.
RxV
EE
Rx Ground
Power Supply 2, 3, 6 Negative power supply, normally ground
NC
RxV
4, 5
7
Pin not connected
Rx +3.3 V
Power Supply
Positive power supply, +3.3 V
CC
SD
Rx Signal Detect
PECL/TTL Out-
put active high
8
A high level on this output shows that optical data is applied to the optical input.
PECL Output active high for V23818-N15-L17/L417/L373
TTL Output active high for V23818-N15-L353/L457/L354/L355
RxDn
RxD
Rx Output Data
PECL Output
9
Inverted receiver output data
Receiver output data
10
TxV
CC
Tx +3.3 V
Tx Ground
Power Supply 11
Positive power supply, +3.3 V
TxV
EE
Power Supply 12, 16 Negative power supply, normally ground
TxDis
Tx Disable/Enable TTL Input
13
A low signal switches the laser on.
A high signal switches the laser off.
TxD
Tx Input Data
PECL Input
14
15
Transmitter input data
TxDn
Inverted transmitter input data
Bias Mon Bias Monitor
Analog Voltage
Bias Mon –
This output shows an analog voltage that is proportional to the laser bias current.
Use this output to check proper laser operation and for end of life indications.
3 kΩ
17
18
Limit: Bias Current I
<60 mA
BIAS
10 Ω
3 kΩ
8
ꢀꢁΩ
,
= ----------
Bias Mon +
TxPMon Tx Power Monitor Analog Voltage
This output is derived from the Tx monitor diode. See Application Note.
PMon –
PMon +
19
20
Output Voltage Vmon=1.2 ±0.2 V, Source Resistance R =100 kΩ
S
2x5 Transceiver
RxV
EE
Rx Ground
Power Supply
Power Supply
1
2
3
Negative power supply, normally ground
Positive power supply, +3.3 V
RxV
CC
Rx +3.3 V
SD
Rx Signal Detect
PECL/TTL Out-
put active high
A high level on this output shows that optical data is applied to the optical input.
PECL Output active high for V23818-N15-L37
TTL Output active high for V23818-N15-L47
RxDn
RxD
Rx Output Data
PECL Output
4
5
6
7
8
Inverted receiver output data
Receiver output data
TxV
CC
Tx +3.3 V
Tx Ground
Power Supply
Power Supply
Positive power supply, +3.3 V
Negative power supply, normally ground
TxV
EE
TxDis
Tx Disable/Enable TTL Input
A low signal switches the laser on.
A high signal switches the laser off.
TxD
Tx Input Data
PECL Input
9
Transmitter input data
TxDn
10
Inverted transmitter input data
2x10/2x5 Transceiver
MS
HL
Mounting Studs
N/A
N/A
MS1/2 Mounting Studs are provided for transceiver mechanical attachment to the
circuit board. They also provide an optional connection of the transceiver to the
equipment chassis ground.
Housing Leads
HL1/2/ The transceiver Housing Leads are provided for additional signal grounding. The
3/4
holes in the circuit board must be included and be tied to signal ground.
(See Application Notes).
Pin Inform ations
20 Pin Module
10 Pin Module
HL3
HL2
HL3
MS2
MS2
Tx
Tx
HL4
HL4
20 19 18 17 16 15 14 13 12 11
20-PIN MODULE - TOP VIEW
9 10
10 9
8
7
6
5
10-PIN MODULE - TOP VIEW
1
2
3
4
5
6
7
8
1 2 3 4
HL1
HL1
MS1
MS1
Rx
Rx
HL2
Fiber Optics
V23818-N15-Lx, SFF SM 1300nm 2.5GBd 2x5/2x10 Trx (LC™)
5
APPLICATION NOTES
EMI-Recom m endation
7UDQVFHLYHUꢀ3LWFK
Dimensions in (mm) inches
To avoid electromagnetic radiation exceeding the required limits
please read the following recommendations:
*)
(13.97)
.550
Whenever high speed Gigabit switching components are
located on the PCB (also multiplexers, clock recoveries ...) any
opening of the machine may generate radiation even at differ-
ent locations. Thus every mechanical opening or aperture
should be as small as possible.
On the board itself every data connection should be an imped-
ance matched line (e.g. strip line, coplanar strip line). Data,
Datanot should be routed symmetrically, via’s should be
avoided. A symmetrically matching resistor of 100 Ω should be
placed at the end of each matched line. An alternative termina-
tion can be provided with a 50 Ω resistor at each (D, Dn). In DC
coupled systems an artificial 50 Ω resistance can be achieved
as follows: For 3.3 V: 125 Ω to V and 82 Ω to V , for 5 V:
*) min. pitch between SFF transceiver according to MSA.
Tx Power Monitor
This is the voltage drop across a resistor in the monitor path of
the laser diode. As the output power is regulated to a constant
value, TxPMon also has to stay on constant level. Deviation indi-
cates faulty behavior.
CC
EE
82 Ω to V and 125 Ω to V at Data and Datanot. Please con-
CC
EE
sider whether there is an internal termination inside an IC or a
transceiver.
Rx Monitor
It is recommended that chassis GND and signal GND should
remain separate if there are openings or apertures of the hous-
ing nearby. Sometimes signal GND is the most harmful source
of radiation. Connecting chassis GND and signal GND at the
plate/ bezel/ backside wall e.g. by means of a fiber optic trans-
ceiver may result in a huge amount of radiation. Even a capaci-
tive coupling between signal GND and chassis may be harmful
if it is too close to an opening or an aperture.
This output monitors the optical power into the receiver. The Rx
monitor has a very linear characteristic. There are slight differ-
ences depending on the load. The optical input power was
changed in the range of –11 dBm ... –30 dBm.
Measurem ent Setup (sim plified)
&XUUHQWꢀ0HDVXUHPHQW
If a separation of signal GND and chassis GND is not possible,
it is strongly recommended to provide a proper contact
between signal GND and chassis GND at almost every location.
This concept is suitable to avoid hotspots. Hotspots are places
of highest radiation which could be generated if only a few con-
nections between signal and chassis GND are available. Com-
pensation currents would concentrate at these connections,
causing radiation.
VCC
5 Ω
shunt
VCC
A
V23818-N15-L17
0...2 kΩ
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JURXQGꢁꢀ$Q\ZD\ꢀLWꢀLVꢀDOVRꢀSRVVLEOHꢀWRꢀFRQQHFWꢀWKHPꢀWRꢀFKDVVLVꢀ
*1'ꢁꢀ7KLVꢀPD\ꢀSURYLGHꢀDꢀEHWWHUꢀ(0,ꢀSHUIRUPDQFHꢀLQꢀVRPHꢀSDUꢂ
WLFXODUꢀFDVHVꢁ
Rx-Mon
Please consider that the PCB may behave like a waveguide.
With an ε of 4, the wavelength of the harmonics inside the
r
PCB will be half of that in free space. In this case even small
PCBs may have unexpected resonances.
Fiber Optics
V23818-N15-Lx, SFF SM 1300nm 2.5GBd 2x5/2x10 Trx (LC™)
6
The follow ing diagram s show the m easurem ents plus a trendline added to each m easurem ent.
5HVXOW
80
C
A
A
B
C
D
0 Ω
2 kΩ
Linear Fit (0 Ω)
Linear Fit (2 kΩ)
70
60
50
40
30
20
10
0
D
B
2 µA difference at -11 dBm
between 0 Ω and 2 kΩ
0
10
20
30
40
50
60
70
80
90
100
P in [µW]
/RJDULWKPLFꢀFKDUWꢁꢀW\SLFDOꢀFXUYH
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
−35.00
−30.00
−25.00
−20.00
−15.00
−10.00
−5.00
0.00
P / dBm
Fiber Optics
V23818-N15-Lx, SFF SM 1300nm 2.5GBd 2x5/2x10 Trx (LC™)
7
Single Mode 2.5 GBd 2x10 Transceiver DC/DC
VCC
18
3.3 V
20
19 17
VCC SerDes
12,16
14
TxVEE
TD+
VCC
C6
C7
+
SerDat Out
ECL/
R9
R8
Laser
Driver
PECL
Driver
TD− 15
SerDat Out −
TxDis
13
Tx Disable
L1
TxVCC 11
VCC
3.3 V
SFF Transceiver
C1
V23818-N15-L17/L417
Serializer/
Deserializer
L2
RxVCC
7
C3
C2
Signal
Detect
SD
8
1
SD
RxPMon
Limiting
Pre-
RD−
9
C4
RD−
SerDat In −
Amplifier
Amp
Receiver
PLL etc.
RD+ 10
2,3,6
C5
RD+
SerDat In +
RxVEE
L1/2
= 1 ... 4.7 µH
R2/3
R4/5
R6/7
R8/9
= 150 Ω
C1/2/3 = 4.7 ... 10 µF
= biasing for outputs depending on Serializer
C4/5/6/7 = 100 nF
= 127 Ω
= 82 Ω
R1
= 100 Ω (if no biasing necessary for
Deserializer and not termination inside)
Fiber Optics
V23818-N15-Lx, SFF SM 1300nm 2.5GBd 2x5/2x10 Trx (LC™)
8
Single Mode 2.5 GBd 2x10 Transceiver AC/AC
VCCSerDes
3.3 V
20
18
19 17
TxVEE
TD+
VCC
14
SerDat Out +
ECL/
PECL
Driver
Laser
Driver
100 Ω
TD− 15
SerDat Out −
TxDis
13
Tx Disable
C1
L1
L2
TxVCC 11
VCC
3.3 V
SFF Transceiver
V23818-N15-L353/L354/L355/L373/L457
Serializer/
Deserializer
RxVCC
7
C3
C2
Signal
Detect
SD
8
1
SD
RxPMon
Limiting
Pre-
RD−
9
SerDat In −
Amplifier
Amp
Receiver
PLL etc.
RD+ 10
2,3,6
SerDat In +
RxVEE
L1/2
= 1 ... 4.7 µH
R7/8
= Biasing (depends on SerDes chip)
C1/2/3 = 4.7 ... 10 µF
Place R1/2/3/4/7/8 close to SerDes chip
Place R5/6 close to Infineon transceiver
R1/2
R3/4
= Depends on SerDes chip used
= Depends on SerDes chip used
Values of R1/2/3/4 may vary as long as proper 50 Ω termination
ing is required for good EMI performance. Use short tracks
from the inductor L1/L2 to the module V Rx/V Tx.
to V or 100 Ω differential is provided. The power supply filter-
EE
CC
CC
Fiber Optics
V23818-N15-Lx, SFF SM 1300nm 2.5GBd 2x5/2x10 Trx (LC™)
9
Single Mode 2.5 GBd 2x5 Transceiver DC/DC
VCC
3.3 V
VCC SerDes
7
TxVEE
TD+
VCC
9
C6
C7
+
SerDat Out
ECL/
PECL
Driver
R9
R8
Laser
Driver
TD− 10
SerDat Out −
TxDis
TxVCC
8
6
Tx Disable
L1
VCC
3.3 V
SFF Transceiver
V23818-N15-L37
C1
C2
Serializer/
Deserializer
L2
RxVCC
2
C3
Signal
Detect
SD
3
4
SD
Limiting
Amplifier
RD−
C4
RD−
Pre-
SerDat In −
Amp
Receiver
PLL etc.
RD+
5
1
C5
RD+
SerDat In +
RxVEE
L1/2
= 1 ... 4.7 µH
R2/3
R4/5
R6/7
R8/9
= 150 Ω
C1/2/3 = 4.7 ... 10 µF
= biasing for outputs depending on Serializer
C4/5/6/7 = 100 nF
= 127 Ω
= 82 Ω
R1
= 100 Ω (if no biasing necessary for
Deserializer and not termination inside)
Fiber Optics
V23818-N15-Lx, SFF SM 1300nm 2.5GBd 2x5/2x10 Trx (LC™)
10
Single Mode 2.5 GBd 2x5 Transceiver AC/AC
VCC SerDes
7
TxVEE
TD+
VCC
9
+
SerDat Out
ECL/
PECL
Driver
Laser
100 Ω
Driver
TD− 10
SerDat Out −
TxDis
TxVCC
8
6
Tx Disable
C1
L1
L2
VCC
3.3 V
SFF Transceiver
V23818-N15-L47
Serializer/
Deserializer
RxVCC
2
C3
C2
Signal
Detect
SD
3
4
SD
Limiting
Amplifier
RD−
RD−
Pre-
Amp
SerDat In −
Receiver
PLL etc.
RD+
5
1
RD+
SerDat In +
RxVEE
L1/2
= 1 ... 4.7 µH
R3/4
R7/8
= Depends on SerDes chip used
C1/2/3 = 4.7 ... 10 µF
R1/2 = Depends on SerDes chip used
= Biasing (depends on SerDes chip)
Place R1/2/3/4/7/8 close to SerDes chip
Values of R1/2/3/4 may vary as long as proper 50 Ω termination
ing is required for good EMI performance. Use short tracks
from the inductor L1/L2 to the module V Rx/V Tx.
to V or 100 Ω differential is provided. The power supply filter-
EE
CC
CC
Published by Infineon Technologies AG
Warnings
Due to technical requirements components may contain dangerous substances.
For information on the types in question please contact your Infineon Technologies
offices.
© Infineon Technologies AG 2001
All Rights Reserved
Infineon Technologies Components may only be used in life-support devices or
systems with the express written approval of Infineon Technologies, if a failure of
such components can reasonably be expected to cause the failure of that
life-support device or system, or to affect the safety or effectiveness of that device
or system. Life support devices or systems are intended to be implanted in the
human body, or to support and/or maintain and sustain and/or protect human life.
If they fail, it is reasonable to assume that the health of the user or other persons
may be endangered.
Attention please!
The information herein is given to describe certain components and shall not be
considered as warranted characteristics.
Terms of delivery and rights to technical change reserved.
We hereby disclaim any and all warranties, including but not limited to warranties
of non-infringement, regarding circuits, descriptions and charts stated herein.
Infineon Technologies is an approved CECC manufacturer.
Inform ation
For further information on technology, delivery terms and conditions and prices
please contact the Infineon Technologies offices or our Infineon Technologies
Representatives worldwide - see our webpage at
w w w.infineon.com /fiberoptics
Infineon Technologies AG • Fiber Optics • Wernerwerkdamm 16 • Berlin D-13623, Germany
Infineon Technologies, Inc. • Fiber Optics • 1730 North First Street • San Jose, CA 95112, USA
Infineon Technologies K.K. • Fiber Optics • Takanawa Park Tower • 20-14, Higashi-Gotanda, 3-chome, Shinagawa-ku • Tokyo 141, Japan
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