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參數(shù)資料
| 型號(hào)： | 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(duì)ATM，SONET的OC3/SDH的STM - 1單模光纖收發(fā)器（應(yīng)用于自動(dòng)取款機(jī)，SONET的OC3/SDH的STM - 1的單模式收發(fā)器） |
| 文件頁(yè)數(shù)： | 3/12頁(yè) |
| 文件大?。?/td> | 159K |
| 代理商： | HFCT-5201 |
3
Applications Information
Typical BER Performance of
Receiver versus Input Optical
Power Level
The HFCT-5201 transceiver can
be operated at Bit-Error-Rate
conditions other than the
required BER = 1 x 10
-10
of the
ATM Forum 155.52 Mb/s Physical
Layer Standard. The typical trade-
off 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 BER
conditions better than 1 x 10
-10
,
more input signal is needed
(+dB).
Recommended Circuit
Schematic
In order to ensure proper
functionality of the HFCT-5201 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 ohm Microstrip
or stripline transmission lines.
This will help to minimize the
parasitic inductance and
capacitance effects. Proper
termination of the differential
data signals will prevent reflec-
tions and ringing which would
compromise the signal fidelity
and generate unwanted electrical
noise. Locate termination at the
received signal end of the
transmission line. The length of
these lines should be kept short
and of equal length. For the high
speed signal lines, differential
signals should be used, not
single-ended signals, and these
differential signals need to be
loaded symmetrically to prevent
unbalanced currents from flowing
which will cause distortion in the
signal.
Maintain a solid, low inductance
ground plane for returning signal
currents to the power supply.
Multi-layer plane printed circuit
board is best for distribution of
V
CC
, returning ground currents,
forming transmission lines and
shielding. Also, it is important to
suppress noise from influencing
the fiber-optic transceiver
performance, especially the
receiver circuit. Proper power
supply filtering of V
CC
for this
transceiver is accomplished by
Figure 3. Relative Input Optical
Power–dBm Avg.
Figure 4. Recommended Circuit Schematic.
B
-5
3
10
-2
RELATIVE INPUT OPTICAL POWER – dBm avg.
-3
1
-2
0
10
-4
10
-6
10
-7
10
-8
10
-9
10
-10
10
-11
10
-12
10
-13
10
-14
10
-15
10
-5
10
-3
-4
-1
2
LINEAR EXTRAPOLATION
OF 10
-4
THROUGH 10
-7
DATA POINTS
ACTUAL DATA
POINTS
FILTER
APINS
R7
R6
R8
V
CC
C3
C4
L1
L2
C1
C2
R1
R4
C5
R3
R2
V
CC
TERMINATE AT
FIBER-OPTIC
TRANSCEIVER
INPUTS
TERMINATE
AT THE
DEVICE
INPUTS
C8
R5
C6
1
NC
2
3
NC
4
NC
5
L
MON
6
L
MON
7
Tx
DIS
8
NC
P
MON
18
17
RD
16
RD
15
SD
14
13
12
TD
11
TD
10
Rx
V
EE
Rx
V
CC
Tx
V
CC
Tx
V
EE
TOP VIEW
NO INTERNAL
CONNECTION
NO INTERNAL
CONNECTION
NOTES:
THE SPLIT-LOAD TERMINATIONS FOR PECL SIGNALS NEED TO BE LOCATED AT THE INPUT
OF DEVICES RECEIVING THOSE PECL SIGNALS.
R1 = R4 = R6 = R8 = 130
.
R2 = R3 = R5 = R7 = 82
.
R15 = 10 K.
C1 = C2 = C3 = C5 = C6 = 0.1 μF.
C4 = C8 = 10 μF.
L1 = L2 = 1 μH COIL.
RD
RD
SD
VCC
TD
TD
Rx
Tx
NC
R15
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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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