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參數(shù)資料
| 型號： | HFCT-5201 |
| 英文描述： | 155 Mb/s Single Mode Fiber Transceiver for ATM,SONET OC3/SDH STM-1(應(yīng)用于ATM,SONET OC3/SDH STM-1的單模式收發(fā)器) |
| 中文描述： | 155 Mb / s的對ATM，SONET的OC3/SDH的STM - 1單模光纖收發(fā)器（應(yīng)用于自動取款機，SONET的OC3/SDH的STM - 1的單模式收發(fā)器） |
| 文件頁數(shù)： | 4/12頁 |
| 文件大小： | 159K |
| 代理商： | HFCT-5201 |
4
using the recommended, separate
filter circuits shown in Figure 4,
the Recommended Circuit
Schematic diagram for the
transmitter and receiver sections.
These filter circuits suppress V
CC
noise of 50 mV peak-to-peak or
less over a broad frequency
range. This prevents receiver
sensitivity degradation due to V
CC
noise. It is recommended that
surface-mount components be
used. Use tantalum capacitors for
the 10
μ
F capacitors and
monolithic, ceramic bypass
capacitors for the 0.1
μ
F
capacitors. Also, it is recom-
mended that a surface-mount coil
inductor of 1
μ
H be used. Ferrite
beads can be used to replace the
coil inductors when using quieter
V
CC
supplies, but a coil inductor
is recommended over a ferrite
bead. Coils with a low, series dc
resistance (<0.7 ohms) and high,
self-resonating frequency are
recommended. All power supply
components need to be placed
physically next to the V
CC
pins of
the receiver and transmitter. Use
a good, uniform ground plane
with a minimum number of holes
to provide a low-inductance
ground current return for the
power supply currents.
In addition to these recommenda-
tions, Hewlett-Packard’s Applica-
tion Engineering staff is available
for consulting on best layout
practices with various vendors
mux/demux, clock generator and
clock recovery circuits. HP has
participated in several reference
design studies and is prepared to
share the findings of these
studies with interested customers.
Contact your local HP sales
representative to arrange for this
service.
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-5201 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 differ-
ence in supply levels. Also, noise
immunity may be compromised
for the HFCT-5201 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 signals can be
done between the HFCT-5201
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-5201 is compatible
with industry standard wave or
hand solder processes.
HFCT-5201 Process Plug
The HFCT-5201 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-5201 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, N.J.
Recommended cleaning and
degreasing chemicals for the
HFCT-5201 are alcohols (methyl,
isopropyl, isobutyl), aliphatics
(hexane, heptane) and other
chemicals, such as soap solution
or naphtha. Do not use partially
halogenated hydro-carbons 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.
Regulatory Compliance
The HFCT-5201 is intended to
enable commercial system
designers to develop equipment
that complies with the various
regulations governing certifica-
tion of Information Technology
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HFCT5201A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FIBER OPTIC TRANSCEIVER |
| HFCT-5201A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:155 Mb/s SMF Transceiver for ATM. SONET OC-3/SDH STM-1 -40C to +85C Black Case |
| HFCT5201B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FIBER OPTIC TRANSCEIVER |
| HFCT-5201B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:155 Mb/s SMF Transceiver for ATM. SONET OC-3/SDH STM-1 0C to +70C Black Case |
| HFCT5201C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FIBER OPTIC TRANSCEIVER |
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