XMT5160-155 Agilent(Hewlett-Packard), XMT5160-155 Datasheet - Page 14

• Manufacturer Part Number: XMT5160-155
• Description: 622 Mb/s Logic Interface Laser Transmitter
• Manufacturer: Agilent(Hewlett-Packard)

PIN 2
PIN 4
Figure 1. Laser Bias Monitor Circuitry.
Connection Diagram
Top View
Pin Descriptions
Pins 1, 3, 10, 20, NC:
These pins should not be con-
nected and should be left open
circuit on the application PCB.
Pin 2, Laser Bias Monitor (+):
See Figure 1.
Pin 4, Laser Bias Monitor (–):
See Figure 1.
Pins 5, 14, V
These pins are connected to
ground in +5 V systems and –5 V
in negative supply systems.
3 k
3 k
LASER BIAS MONITOR (+)
LASER BIAS MONITOR (–)
EE
V
:
CC
TRANSMIT DISABLE
10
I
BIAS
V
LASER
EE
MODULATION
CURRENT
V
V
V
V
NC
NC
NC
CC
CC
CC
EE
1
2
3
4
5
6
7
8
9
10
Pins 6, 8, 9, 12, 18, V
Connect to +5 V for positive
supply systems and ground for
–5.2 V systems.
Pin 7, Transmit Disable:
Pin 7 floats to V
circuited, enabling the
transmitter. It must be biased
within 3 V of V
Pins 11, 13, Ground:
These pins should always be
connected to circuit ground.
FIBER PIGTAIL
20
19
18
17
16
15
14
13
12
11
CC
EE
to disable.
PIN 19
PIN 17
NC
LASER BACK FACET MONITOR (+)
V
LASER BACK FACET MONITOR (–)
DATA
DATA
V
CASE GROUND
V
CASE GROUND
Figure 2. Back Facet Monitor Circuitry.
when open
CC
EE
CC
CC
PHOTODIODE
:
MONITOR
3 k
3 k
V
CC
Pins 15, 16, DATA, DATA:
These are differential ECL inputs.
If open circuited they float to V
(V
Pin 17, Laser Back Facet
Monitor (–):
See Figure 2.
Pin 19, Laser Back Facet
Monitor (+):
See Figure 2.
200
CC
TO LASER BIAS
CONTROL CIRCUITRY
–1.3 V).
455
BB