參數(shù)資料
型號(hào): XMT5370B-155-SC
英文描述: 155 Mb/s Logic Interface Laser Transmitter for OC3/STM1
中文描述: 155 Mb / s的為OC3/STM1端口邏輯接口激光發(fā)射器
文件頁(yè)數(shù): 14/18頁(yè)
文件大?。?/td> 287K
代理商: XMT5370B-155-SC
455
V
CC
MONITOR
PHOTODIODE
200
3 k
PIN 19
PIN 17
3 k
TO LASER BIAS
CONTROL CIRCUITRY
V
CC
LASER
10
3 k
PIN 2
PIN 4
3 k
V
EE
MODULATION
CURRENT
I
BIAS
Pins 15, 16, DATA, DATA:
These are differential ECL inputs.
If open circuited they float to V
BB
(V
CC
–1.3 V).
Pin 17, Laser Back Facet
Monitor (–):
See Figure 2.
Pin 19, Laser Back Facet
Monitor (+):
See Figure 2.
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
EE
:
These pins are connected to
ground in +5 V systems and –5 V
in negative supply systems.
Pins 6, 8, 9, 12, 18, V
CC
:
Connect to +5 V for positive
supply systems and ground for
–5.2 V systems.
Pin 7, Transmit Disable:
Pin 7 floats to V
EE
when open
circuited, enabling the
transmitter. It must be biased
within 3 V of V
CC
to disable.
Pins 11, 13, Ground:
These pins should always be
connected to circuit ground.
Figure 1. Laser Bias Monitor Circuitry.
Figure 2. Back Facet Monitor Circuitry.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
NC
LASER BIAS MONITOR (+)
NC
LASER BIAS MONITOR (–)
V
EE
V
CC
TRANSMIT DISABLE
V
CC
V
CC
NC
NC
LASER BACK FACET MONITOR (+)
V
CC
LASER BACK FACET MONITOR (–)
DATA
DATA
V
EE
CASE GROUND
V
CC
CASE GROUND
FIBER PIGTAIL
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