V23818-K305-L17 Datasheet, PDF (3/16 Pages) Infineon Technologies AG – Small Form Factor Multimode 850 nm 1.0625 GBd Fibre Channel 1.25 Gigabit Ethernet Transceiver 2x5 Pinning with LC™ Connector

V23818-K305-Lxx
V_EEr / V_EEt
Connect pins 1 and 7 to signal ground.
Pin Configuration
V_CCr / V_CCt
A 3.3 V DC power supply must be applied at pins 2 and 6. A recommended power supply
filter network is given in the termination scheme. Locate power supply filtering directly at
the transceiver power supply pins. Proper power supply filtering is essential for good EMI
performance.
TD+ / TD–
Transmitter data LVPECL level inputs. Terminated and AC coupled internally.
RD– / RD+
Receiver data LVPECL level outputs. Biased and AC coupled internally.
TDis
A logical LVTTL high input will disable the laser. To enable the laser, an LVTTL low input
must be applied. Leave pin unconnected if feature not required.
SD
LVTTL output. A logical high output indicates normal optical input levels to the receiver.
Low optical input levels at the receiver result in a low output. Signal Detect can be used
to determine a definite optical link failure; break in fiber, unplugging of a connector, faulty
laser source. However it is not a detection of a bad link due to data-related errors.
MS
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. The holes in the circuit board must be tied to chassis ground.
HL
Housing leads are provided for additional signal grounding. The holes in the circuit board
must be included and tied to signal ground.
Data Sheet
3
2003-01-22