HFCT-5905E Datasheet, PDF (2/12 Pages) Agilent(Hewlett-Packard) – Agilent HFCT-5905E MT-RJ Duplex Single Mode Transceiver

Connection Diagram
RX TX
Mounting Studs/
Solder Posts
Package
Grounding Tabs
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RECEIVER SIGNAL GROUND
f1
10 ^f
TRANSMITTER DATA IN BAR
RECEIVER POWER SUPPLY f 2
9^f
TRANSMITTER DATA IN
SIGNAL DETECT
f3
8^f
TRANSMITTER DISABLE
RECEIVER DATA OUT BAR
f4
7^f
TRANSMITTER SIGNAL GROUND
RECEIVER DATA OUT
f5
6^f
TRANSMITTER POWER SUPPLY
Pin Descriptions:
Pin 1 Receiver Signal Ground
V_EE RX:¹
Directly connect this pin to the
receiver ground plane.
Pin 4 Receiver Data Out Bar RD-:
No internal terminations are
provided. See recommended
circuit schematic.
Pin 2 Receiver Power Supply
V_CC RX:
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_CC RX
pin.
Pin 3 Signal Detect SD:
Normal optical input levels to the
receiver result in a logic “1”
output.
Pin 5 Receiver Data Out RD+:
No internal terminations are
provided. See recommended
circuit schematic.
Pin 6 Transmitter Power Supply
V_CC TX:
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_CC TX
pin.
Low optical input levels to the
receiver result in a fault condition
indicated by a logic “0” output.
This Signal Detect output can be
used to drive a PECL input on an
upstream circuit, such as Signal
Detect input or Loss of Signal-bar.
Pin 7 Transmitter Signal Ground
V_EE TX:
Directly connect this pin to the
transmitter ground plane.
Pin 8 Transmitter Disable T_DIS:
Optional feature for laser based
products only. For laser based
products connect this pin to
+3.3 V TTL logic high “1” to
disable module. To enable module
connect to TTL logic low “0”.
Pin 9 Transmitter Data In TD+:
No internal terminations are
provided. See recommended
circuit schematic.
Pin 10 Transmitter Data In Bar TD-:
No internal terminations are
provided. See recommended
circuit schematic.
Mounting Studs/Solder Posts
The two mounting studs are
provided for transceiver
mechanical attachment to the
circuit board. It is recommended
that the holes in the circuit board
be connected to chassis ground.
Package Grounding Tabs
Connect four package grounding
tabs to signal ground.
Note: 1. The Transmitter and Receiver V_EE connections are commoned within the module.
2