V23818-N15-L653 INFINEON [Infineon Technologies AG], V23818-N15-L653 Datasheet - Page 9

• Manufacturer Part Number: V23818-N15-L653
• Manufacturer: INFINEON [Infineon Technologies AG]

Functional Description
This transceiver is designed to transmit serial data via single mode fiber.
Figure 9
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
V
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.
Data Sheet
TH
).
PDBias
BMon-
PMon-
BMon+
PMon+
TDis
RD-
RD+
Functional Diagram
TD-
TD+
SD
Automatic
Shut-Down
Receiver
Power
Control
Laser
Driver
3k
3k
9
200
10
3k
3k
Rx
Coupling Unit
Tx
Coupling Unit
Monitor
e/o
Laser
o/e
o/e
Single
Mode
Fiber
V23818-N15-L6xx
CCt
switched below
Description
File: 1357
2003-09-10