參數(shù)資料
型號： HFCT-6001D
英文描述： 622 Mb/s Single Mode Fiber Transceiver for ATM, SONET OC-12/SDH STM-4(應用于ATM, SONET OC-12/SDH STM-4的622 Mb/s單模式光收發(fā)器)
中文描述： 622 Mb / s的對ATM，SONET的OC-12/SDH的STM - 4單模光纖收發(fā)器（應用于自動取款機，SONET的OC-12/SDH的STM - 4的622 Mb / s的單模式光收發(fā)器）
文件頁數(shù)： 5/12頁
文件大?。?/td> 177K
代理商： HFCT-6001D
5
Evaluation Circuit Boards
Evaluation circuit boards
implementing this recommended
circuit design are available from
Hewlett-Packard’s Application
Engineering staff. Contact your
local HP sales representative to
arrange for access to one if
needed.
Operation in -5.2 V Designs
For applications that require
-5.2 V dc power supply level for
true ECL logic circuits, the
HFCT-6001 transceiver can be
operated with a V
CC
= 0 V dc and
a V
EE
= -5.2 V dc. This
transceiver is not specified with
an operating, negative power
supply voltage. The potential
compromises that can occur with
use of -5.2 V dc power are that
the absolute voltage states for
V
OH
and V
OL
will be changed
slightly due to the 0.2 V
difference in supply levels. Also,
noise immunity may be
compromised for the HFCT-6001
transceiver because the ground
plane is now the V
CC
supply
point. The suggested power
supply filter circuit shown in
Figure 4 Recommended Circuit
Schematic should be located in
the V
EE
paths at the transceiver
supply pins. Direct coupling of
the differential data and clock
signals can be done between the
HFCT-6001 transceiver and the
standard ECL circuits. For
guaranteed -5.2 V dc operation,
contact your local Hewlett-
Packard Field Sales Engineer for
assistance.
Recommended Solder and
Wash Process
The HFCT-6001 is compatible
with industry standard wave or
hand solder processes.
HFCT-6001 Process Plug
The HFCT-6001 transceiver is
supplied with a process plug for
protection of the optical ports
with the Duplex SC connector
receptacle. This process plug
prevents contamination during
wave solder and aqueous rinse as
well as during handling, shipping
or storage. It is made of high-
temperature, molded, sealing
material that will withstand +80°C
and a rinse pressure of 50 lb/in
2
.
Recommended Solder Fluxes
and Cleaning/Degreasing
Chemicals
Solder fluxes used with the
HFCT-6001 fiber-optic
transceiver should be water-
soluble, organic solder fluxes.
Some recommended solder
fluxes are Lonco 3355-11 from
London Chemical West, Inc. of
Burbank, CA, and 100 Flux from
Alpha- metals of Jersey City, NJ.
Recommended cleaning and
degreasing chemicals for the
HFCT-6001 are alcohol’s (methyl,
isopropyl, isobutyl), aliphatics
(hexane, heptane) and other
chemicals, such as soap solution
or naphtha. Do not use partially
halogenated hydrocarbons for
cleaning/degreasing. Examples of
chemicals to avoid are 1.1.1.
trichloroethane, ketones (such as
MEK), acetone, chloroform, ethyl
acetate, methylene dichloride,
phenol, methylene chloride or
N-methylpyrolldone
TOP VIEW
A
E
B
C
D
F
Figure 5. Recommended Board Layout Hole Pattern
Dim.
Millimeters
Typ.
20.32
33.02
2.54
2.54
Inches
Typ.
0.8
1.3
0.1
0.1
Min.
Max.
Min.
Max.
A
B
C
D
E
F
1.8
0.7
2.0
0.9
0.071
0.027
0.079
0.035
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