XMT5160-155 Agilent(Hewlett-Packard), XMT5160-155 Datasheet - Page 8

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

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.
PIN 2
PIN 4
3 k
3 k
LASER BIAS MONITOR (+)
LASER BIAS MONITOR (–)
EE
TRANSMIT DISABLE
:
V
CC
10
I
V
BIAS
LASER
EE
V
V
V
V
MODULATION
CURRENT
NC
NC
NC
CC
CC
CC
EE
1
2
3
4
5
6
7
8
9
10
Pins 6, 8, 9, 12, 18, V
These pins are connected 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 connect to the case.
They should always be connected
to circuit ground.
FIBER PIGTAIL
20
19
18
17
16
15
14
13
12
11
CC
EE
NC
LASER BACK FACET MONITOR (+)
V
LASER BACK FACET MONITOR (–)
DATA
DATA
V
CASE GROUND (SEE NOTE BELOW)
V
CASE GROUND (SEE NOTE BELOW)
CC
EE
CC
to disable.
when open
Figure 2. Back Facet Monitor Circuitry.
PIN 19
PIN 17
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).
449
BB