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PDF V23818-N15-L354 Data sheet ( Hoja de datos )

Número de pieza V23818-N15-L354
Descripción Small Form Factor Single Mode 1300 nm Multirate up to 2.5 Gbit/s Transceiver 2x5/2x10 Pinning with LC Connector
Fabricantes Infineon Technologies 
Logotipo Infineon Technologies Logotipo



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Small Form Factor
Multimode 850 nm
2.125 and 1.0625 GBd Fibre Channel
2x5 Transceiver with LC™ Connector
Features
• Small Form Factor transceiver
• Full compliant with Fibre Channel
• Data rate autonegotiation between
1.0625 and 2.125 GBd
• Excellent EMI performance
• RJ-45 style LC™ connector system
• Half the size of SC Duplex 1x9 transceiver
• Single power supply (3.3 V)
• Extremely low power consumption of
445 mW typical
• PECL and LVPECL differential inputs and outputs
• System optimized for 62.5/50 µm graded index fiber
• Multisource 2x5 footprint
• Small size for high port density
• UL-94 V-0 certified
• ESD Class 1 per MIL-STD 883D Method 3015.7
• Compliant with FCC (Class B) and EN 55022
• For distances of up to 700 m
• Class 1 FDA and IEC laser safety compliant
• AC/AC coupling in accordance to SFF MSA
• Operating case temperature: –10°C to 85°C
Fiber Optics
V23818-M305-L57
V23818-M305-L57
LC™ is a trademark of Lucent
Part Number
V23818-M305-L57
Voltage
3.3 V
Data Sheet
Signal Detect
TTL
1
Input
AC
Output
AC
2002-03-21

1 page




V23818-N15-L354 pdf
V23818-M305-L57
Description
Functional Description of 2x5 Pin Row Transceiver
This transceiver is designed to transmit serial data via multimode cable.
TDis
TD
TD+
Automatic
Shut-Down
LEN
Laser
Driver
RD
RD+
SD
Power
Control
Monitor
Receiver
Laser
Coupling Unit
e/o
Laser
o/e
Multimode Fiber
Rx Coupling Unit
o/e
Figure 2 Functional Diagram
The receiver component converts the optical serial data into PECL compatible electrical
data (RD+ and RD–). The Signal Detect (SD, active high) shows whether an optical
signal is present.
The transmitter converts PECL compatible electrical serial data (TD+ and TD–) into
optical serial data. Data lines are differentially 100 terminated.
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 output 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 prevent the laser power from exceeding the
operating limits.
Single fault condition is ensured by means of an integrated automatic shutdown circuit
that disables the laser when it detects laser fault to guarantee the laser Eye Safety.
The transceiver contains a supervisory circuit to control the power supply. This circuit
makes an internal reset signal whenever the supply voltage drops below the reset
threshold. It keeps the reset signal active for at least 140 milliseconds after the voltage
has risen above the reset threshold. During this time the laser is inactive.
A low signal on TxDis enables transmitter. If TxDis is high the transmitter is disabled.
Data Sheet 5 2002-03-21

5 Page





V23818-N15-L354 arduino
V23818-M305-L57
Application Notes
Application Notes
Small Form Factor Pinning Comparison
The drawing below gives you a comparison between the different pinnings 2x5, 2x6,
2x10. Dimension for diameter and distance of additional pins is similar to the existing
dimensions of the other pins.
RX VEE 1
RX VCC 2
SD 3
RXD - 4
RXD + 5
RS 1
RX VEE 2
RX VCC 3
SD 4
RXD - 5
RXD + 6
Figure 5
VCC PIN 1
RX VEE 2
RX VEE 3
RX CLK - 4
RX CLK + 5
RX VEE 6
RX VCC 7
SD 8
RXD - 9
RXD + 10
TOP VIEW
RX TX
2 x 10
2x6
2x5
20 P MON +
19 P MON -
18 BIAS MON +
17 BIAS MON -
16 TX VEE
15 TXD -
14 TXD +
13 TX DIS
12 TX VEE
11 TX VCC
12 LASER FAULT
11 TXD -
10 TXD +
9 TX DIS
8 TX VEE
7 TX VCC
10 TXD -
9 TXD +
8 TX DIS
7 TX VEE
6 TX VCC
Pin Description
RS pin - The RS Rate Select: is not connected.
LF pin - The LF pin (Laser Fault) is a TTL output of the Laser Driver Supervisor Circuit.
A Logic “1” level can be measured in case of a laser fault. It will not show a fault
if the laser is being disabled using the TxDis input, since this is not a fault
condition.
EMI-Recommendation
To avoid electromagnetic radiation exceeding the required limits please take note of the
following recommendations.
When Gigabit switching components are found on a PCB (multiplexers, clock recoveries
etc.) any opening of the chassis may produce radiation also at chassis slots other than
that of the device itself. Thus every mechanical opening or aperture should be as small
as possible.
On the board itself every data connection should be an impedance matched line (e.g.
strip line, coplanar strip line). Data, Datanot should be routed symmetrically, vias should
be avoided. A terminating resistor of 100 should be placed at the end of each matched
Data Sheet 11 2002-03-21

11 Page







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