V23818-N15-L353 Infineon Technologies, V23818-N15-L353 Datasheet - Page 7

• Manufacturer Part Number: V23818-N15-L353
• Description: TXRX SINGLE MODE 2.5GBD 1300NM
• Manufacturer: Infineon Technologies

Specifications of V23818-N15-L353

• Data Rate: 2.5Gbps
• Wavelength: 1300nm
• Applications: Ethernet
• Voltage - Supply: 3.14 V ~ 3.46 V
• Connector Type: LC Duplex
• Mounting Type: PCB
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: V23818-N15-L353IN

V
For 2x10 transceivers, connect pins 2, 3, 6, 12 and 16 to signal
ground.
For 2x5 transceivers, connect pins 1 and 7 to signal ground.
V
For 2x10 transceivers a 3.3 V DC power supply must be applied
at pins 7 and 11.
For 2x5 transceivers 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 ter-
mination 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.
For V23818-N15-L353/L356/L457/L354/L355/L47/L46/L373
terminated and AC coupled internally.
For V23818-N15-L17/L16/L417/L37/L36 use termination and
coupling as shown in the termination scheme.
RD– / RD+
Receiver data LVPECL level outputs.
For V23818-N15-L353/L356/L457/L354/L355/L47/L46/L373
biased and AC coupled internally.
For V23818-N15-L17/L16/L417/L37/L36 use termination and
coupling as shown in the termination scheme.
TDis
A logical LVTTL high input will disable the laser. To enable the
laser, an LVTTL low input must be applied. Leave pin uncon-
nected if feature not required.
SD
LVTTL output for V23818-N15-L353/L356/L457/L354/L355/L47/
L46.
LVPECL output for V23818-N15-L17/L16/L417/L37/L36/L373.
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 opti-
cal 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 attach-
ment to the circuit board. They also provide an optional connec-
tion 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.
Fiber Optics
EEr
CCr
/ V
/ V
EEt
CCt
7
2x10 Transceiver Additional Functionality
PDBias
Connect pin 1 to V
exceeding 2 k , as shown in Figure 1 to monitor PIN photo
detector bias current. Leave pin floating if not used. Typical
behaviour is shown in Figures 2a and 2b using a 2 k load.
Figure 1. Photo Detector Bias Interface
Typical Responsitivity of PIN Photo Detector Bias Current
Monitor
Figure 2a. Linear Response
Figure 2b. Logarithmic Response
400
300
200
100
400
300
200
100
0
0
-30
0
V23818-N15-Lxx/Lxxx, SFF SM 1300nm 2.5GBd Trx 2x5/2x10 (LC™)
-24
CC
100
Pin 1
through a bias resistor, of a value not
Received Optical Power (dBm)
Received Optical Power ( W)
-18
2 k
200
Vcc
-12
V
bias
300
-6
400
0