HFCT-5962NL Avago Technologies US Inc., HFCT-5962NL Datasheet - Page 6

• Manufacturer Part Number: HFCT-5962NL
• Manufacturer: Avago Technologies US Inc.

Specifications of HFCT-5962NL

• Optical Fiber Type: TX/RX
• Data Transfer Rate: 155Mbps
• Optical Rise Time: 2ns
• Optical Fall Time: 2ns
• Operating Temperature Classification: Commercial
• Peak Wavelength: 1360/1580nm
• Package Type: DIP With Connector
• Operating Supply Voltage (min): 3.1V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.5V
• Output Current: 50mA
• Operating Temp Range: -5C to 70C
• Mounting: Snap Fit To Panel
• Pin Count: 20
• Lead Free Status / RoHS Status: Compliant

Connection Diagram
PHOTO DETECTOR BIAS
Figure 5. Pin Out Diagram (Top View)
6
Pin Descriptions:
Pin 1 Photo Detector Bias, VpdR:
This pin enables monitoring of photo detector bias cur-
rent. It must be connected directly to V
through a resistor (Max. 200 Ω) for monitoring photo
detector bias current.
Pins 2, 3, 6 Receiver Signal Ground V
Directly connect these pins to the receiver ground plane.
Pins 4, 5 DO NOT CONNECT
Pin 7 Receiver Power Supply V
Provide +3.3 V dc via the recommended receiver power
supply filter circuit. Locate the power supply filter circuit
as close as possible to the V
circuit should not cause V
specification.
Pin 8 Signal Detect SD:
Normal optical input levels to the receiver result in a logic
“1” output. Low optical input levels to the receiver result in
a logic “0” output. This Signal Detect output can be used
to drive a LVPECL input on an upstream circuit, such as
Signal Detect input or Loss of Signal-bar.
Pin 9 Receiver Data Out Bar RD-:
No internal terminations are provided. See recommended
circuit schematic.
Pin 10 Receiver Data Out RD+:
No internal terminations are provided. See recommended
circuit schematic.
Pin 11 Transmitter Power Supply V
Provide +3.3 V dc via the recommended transmitter
power supply filter circuit. Locate the power supply filter
circuit as close as possible to the V
Pins 12, 16 Transmitter Signal Ground V
Directly connect these pins to the transmitter signal
ground plane.
RECEIVER POWER
RECEIVER SIGNAL
RECEIVER SIGNAL
RECEIVER SIGNAL
NOT CONNECTED
NOT CONNECTED
SIGNAL DETECT
RECEIVER DATA
RECEIVER DATA
Grounding
OUTPUT BAR
Package
Tabs
GROUND
GROUND
GROUND
OUTPUT
SUPPLY
o
o
o
o
o
o
o
o
o
o
RX
TX
1
2
3
4
5
6
7
8
9
1
0
View
Top
2
0
1
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
o
o
o
o
o
o
o
o
o
o
LASER DIODE OPTICAL POWER MONITOR -
POSITIVE END
LASER DIODE OPTICAL POWER MONITOR -
NEGATIVE END
LASER DIODE BIAS CURRENT MONITOR -
POSITIVE END
LASER DIODE BIAS CURRENT MONITOR -
NEGATIVE END
TRANSMITTER SIGNAL GROUND
TRANSMITTER DATA IN BAR
TRANSMITTER DATA IN
TRANSMITTER DISABLE
TRANSMITTER SIGNAL GROUND
TRANSMITTER POWER SUPPLY
CC
CC
RX:
Studs/Solder
to drop below minimum
CC
Mounting
Posts
RX pin. Note: the filter
CC
EE
TX:
CC
RX:
TX pin.
EE
TX:
CC
RX, or to V
CC
RX
Pin 13 Transmitter Disable T
Optional feature, connect this pin to +3.3 V TTL logic high
“1” to disable module. To enable module connect to TTL
logic low “0”.
Pin 14 Transmitter Data In TD+:
No internal terminations are provided. See recommended
circuit schematic.
Pin 15 Transmitter Data In Bar TD-:
No internal terminations are provided. See recommended
circuit schematic.
Pin 17 Laser Diode Bias Current Monitor - Negative End B
The laser diode bias current is accessible by measuring
the voltage developed across pins 17 and 18. Dividing the
voltage by 10 Ohms (internal) will yield the value of the
laser bias current.
Pin 18 Laser Diode Bias Current Monitor - Positive End B
See pin 17 description.
Pin 19 Laser Diode Optical Power Monitor - Negative End
P
The back facet diode monitor current is accessible by mea-
suring the voltage developed across pins 19 and 20. The
voltage across a 200 Ohm resistor between pins 19 and
20 will be proportional to the photo current.
Pin 20 Laser Diode Optical Power Monitor - Positive End P
See pin 19 description.
Mounting Studs/Solder Posts
The two mounting studs are provided for transceiver
mechanical attachment to the circuit board. It is recom-
mended that the holes in the circuit board be connected
to chassis ground.
Package Grounding Tabs
Connect four package grounding tabs to signal ground.
MON
–
DIS
:
MON
MON
MON
+
–
+