參數(shù)資料
型號： HFCT-5207
英文描述： 622 Mb/s Single Mode Fiber Transceiver for ATM, SONET OC-12/SDH STM-4(應(yīng)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(yīng)用于自動取款機(jī)，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)： 3/12頁
文件大小： 170K
代理商： HFCT-5207
3
Receiver Signal Detect
As the input optical power is
decreased, Signal Detect will
switch from high to low (de-
assert point) at a point between
3 dB below minimum guaranteed
sensitivity and the no light input
level. As the input optical power
is increased from very low levels,
Signal Detect will switch back
from low to high (assert point).
The assert level will be at least
0.5 dB higher than the de-assert
level. This single- ended low-
power PECL output is designed
to drive a standard PECL input
using a 10 k
load instead of the
normal 50
PECL load.
Reference Clock
In applications where the receiver
recovered clock frequency is not
allowed to drift upon loss of input
optical signal, the HFCT-5207
has the ability to generate a local
clock output by multiplying an
optional, external 19.44 MHz
reference clock up to the OC-12/
STM4 (622.08 MHz) rate. This
feature is possible because the
clock recovery system consists of
two loops: a data loop which
locks onto the incoming optical
data stream, and a second
reference loop which locks onto
the optional external reference
clock.
This optional feature is initiated
by applying a Lock-to-Reference
logic signal to pin 2 (Lck Ref-)
which switches the loop to the
external reference clock and
disables the received data
outputs. Pin 2 (Lck Ref-) can be
driven from the Signal Detect pin
15 (SD) output or from other
logic further upstream in the
ATM interface which may be
monitoring the quality of the
received data stream.
Transceiver Specified for
Wide Temperature Range
Operation
The HFCT-5207 is specified for
operation over normal
commercial temperature range of
0
°
to +70
°
C (HFCT-5207B/D) or
the extended temperature range
of -40
°
to +85
°
C (HFCT-5207A/C).
Other Members of HP
622 Mb/s Product Family
HFBR-5207 1300 nm LED-
based transceiver in 2 x 9
package for 500 m links with
MMF cables (drop in replace-
ment for HFCT-5207)
HFCT-5208 1300 nm laser
based 1 x 9 SC receptacle
transceiver for 15 km links with
SMF cables (without CDR)
HFBR-5208 1300 nm LED-
based 1 x 9 SC receptacle
transceiver for 500 m links with
MMF cables (drop in
replacement for HFCT-5208)
XMT5370-622 1300 nm laser-
based transmitter in pigtailed
package for 2 km and 15 km
links with SMF cables
XMT5170-622 1300 nm laser-
based transmitter in pigtailed
package for 40 km links with
SMF cables
RCV1201D-622 receiver in
pigtailed package for 2 km, 15
km and 40 km links with SMF
cables
RGR1622 receiver with integral
clock and data recovery in
pigtailed packages for 2 km,
15 km and 40 km.
Applications Information
Typical BER Performance of
Receiver versus Input Optical
Power Level
The HFCT-5207 transceiver can
be operated at Bit-Error-Rate
conditions other than the
required BER = 1 x 10
-10
of the
ATM Forum 622.08 Mb/s Physical
Layer Standard. The typical
tradeoff of BER versus Relative
Input Optical Power is shown in
Figure 3. The Relative Input
Optical Power in dB is referenced
to the Input Optical Power
parameter value in the Receiver
Optical Characteristics table. For
better BER condition than 1 x 10
-
10
, more input signal is needed
(+dB).
Recommended Circuit
Schematic
In order to insure proper
functionality of the HFCT-5207 a
recommended circuit is provided
in Figure 4. When designing the
circuit interface, there are a few
fundamental guidelines to follow.
For example, in the Recom-
mended Circuit Schematic figure
the differential data lines should
be treated as 50
Microstrip or
stripline transmission lines. This
will help to minimize the parasitic
inductance and capacitance
effects. Proper termination of the
differential data and clock signals
will prevent reflections and
ringing which would compromise
the signal fidelity and generate
Figure 3. Relative Input Optical
Power dBm Average.
B
3
10
-15
RELATIVE INPUT OPTICAL POWER – dBm AVG.
-4
-2
-1
0
2
-3
1
-5
-14
10
-13
-12
10
-11
10
-10
10
-9
10
-8
10
-7
10
-6
10
-5
10
-4
10
-3
10
-2
LINEAR EXTRAPOLATION
OF 10
-4
THROUGH 10
-7
DATA POINTS
ACTUAL DATA
POINTS
相關(guān)PDF資料
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HFCT-5208 SC Duplex Single Mode(SC雙工單模式收發(fā)器)
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HFCT-5218M 622 Mb/s Single Mode Laser Transceiver for ATM, SONET OC-12/SDH STM-4 (L4.1)(應(yīng)用于ATM, SONET OC-12/SDH STM-4 (L4.1)的622 Mb/s單模式激光收發(fā)器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HFCT5207B 制造商:Hewlett Packard Co 功能描述:Fiber Optic Transceiver
HFCT-5207B 制造商:Hewlett Packard Co 功能描述:Fiber Optic Transceiver
HFCT-5208AEM 功能描述:光纖發(fā)射器、接收器、收發(fā)器 1x9 622Mb/s IR ExtTe mp Txcvr Metal RoHS:否 制造商:Omron Electronics 產(chǎn)品:Transmitters 數(shù)據(jù)速率:3.5 Gbps 波長:850 nm 最大工作溫度: 最小工作溫度: 封裝 / 箱體: 封裝:
HFCT-5208AEMZ 功能描述:光纖發(fā)射器、接收器、收發(fā)器 1x9 622Mb/s IR ExTp Txc Metal RoHS RoHS:否 制造商:Omron Electronics 產(chǎn)品:Transmitters 數(shù)據(jù)速率:3.5 Gbps 波長:850 nm 最大工作溫度: 最小工作溫度: 封裝 / 箱體: 封裝:
HFCT-5208AFM 功能描述:光纖發(fā)射器、接收器、收發(fā)器 1x9 622Mb/s IR ExtTe mp Txcvr Metal RoHS:否 制造商:Omron Electronics 產(chǎn)品:Transmitters 數(shù)據(jù)速率:3.5 Gbps 波長:850 nm 最大工作溫度: 最小工作溫度: 封裝 / 箱體: 封裝:
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