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參數(shù)資料
| 型號： | HFBR-5208M |
| 英文描述： | 1 x 9 Fiber Optic Transceivers for 622 Mb/s ATM/SONET/SDH Applications(應(yīng)用于622 Mb/s ATM/SONET/SDH 的1 x 9光纖收發(fā)器) |
| 中文描述： | 1 × 9光纖收發(fā)器為622字節(jié)/秒的ATM / SONET / SDH應(yīng)用（應(yīng)用于622 Mb / s的ATM機/的SONET / SDH的1 × 9光纖收發(fā)器） |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 656K |
| 代理商： | HFBR-5208M |
4
length of these lines should be
kept short and of equal length to
prevent pulse-width distortion
from occurring. For the high-speed
signal lines, differential signals
should be used, not single-ended
signals. 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.
Multilayer 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 per-
formance, especially the receiver
circuit. Proper power supply
filtering of V
CC
for this
transceiver is accomplished by
using the recommended separate
filter circuits shown in Figure 4.
These filter circuits suppress V
CC
noise of 100 mV peak-to-peak or
less over a broad frequency range.
This prevents receiver sensitivity
degradation . It is recommended
that surface-mount components
be used. Use tantalum capacitors
for the 10 μF capacitors and
monolithic, ceramic bypass
capacitors for the 0.1 μF
capacitors. Also, it is
recommended that a surface-
mount coil inductor of 1 μH be
used. Ferrite beads can be used to
replace the coil inductors
when using quieter V
CC
supplies,
but a coil inductor is recom-
mended over a ferrite bead to
provide low-frequency noise
filtering as well. 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
Figure 4. Recommended Circuit Schematic for dc Coupling (at +5 V) between
Optical Transceiver and Physical Layer IC
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
path for the signal and power
supply currents.
Although the front mounting
posts make contact with the
metallized housing, these posts
should not be relied upon to
provide adequate electrical
connection to the plated housing.
It is recommended to either
connect these front posts to
chassis ground or allow them to
remain unconnected. These front
posts should not be connected to
signal ground.
Figure 5 shows the recommended
board layout pattern.
MOUNTING POST
NO INTERNAL CONNECTION
HFBR/HFCT-5208M
TOP VIEW
V
EE
1
RD
2
RD
3
SD
4
V
CC
5
V
CC
6
TD
7
TD
8
V
EE
9
C2
L1
L2
R2
R3
R1
R4
C5
C3
V
FILTER
AT V
PINS
TRANSCEIVER
C4
R9
R10
R5
R7
R6
R8
C6
RD
RD
SD
V
CC
TD
TD
TERMINATION
AT PHY
DEVICE
INPUTS
NOTES:
THE SPLIT-LOAD TERMINATIONS FOR PECL SIGNALS NEED TO BE LOCATED AT THE INPUT
OF DEVICES RECEIVING THOSE PECL SIGNALS. RECOMMEND MULTI-LAYER PRINTED
CIRCUIT BOARD WITH 50 OHM MICROSTRIP OR STRIPLINE SIGNAL PATHS BE USED.
R1 = R4 = R6 = R8 = R10 = 130 OHMS.
R2 = R3 = R5 = R7 = R9 = 82 OHMS.
C1 = C2 = C3 = C5 = C6 = 0.1 μF.
C4 = C7 = 10 μF.
L1 = L2 = 1 μH COIL OR FERRITE INDUCTOR (see text comments).
TERMINATION
AT TRANSCEIVER
INPUTS
Rx
Rx
Tx
Tx
V
CC
V
CC
C1
C7
MOUNTING POST
NO INTERNAL CONNECTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HFCT-5208M | 1 x 9 Fiber Optic Transceivers for 622 Mb/s ATM/SONET/SDH Applications(應(yīng)用于622 Mb/s ATM/SONET/SDH 的1 x 9光纖收發(fā)器) |
| HFBR-5208 | 1300 nm LED Transceiver for ATM, SONET/SDH 622 Mb/s and General Purpose 155 - 650 Mb/s(應(yīng)用于ATM, SONET/SDH 622 Mb/s和 通用155 - 650 Mb/s的1300 nm LED收發(fā)器) |
| HFBR-5303 | 850 nm VCSEL 1x9 Transceiver(850 nm VCSEL 1x9 收發(fā)器) |
| HFBR-53D3 | 850 nm VCSEL 1x9 Transceiver(850 nm VCSEL 1x9 收發(fā)器) |
| HFBR-53D5 | 850 nm VCSEL 1x9 Transceiver(850 nm VCSEL 1x9 收發(fā)器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HFBR-5208MZ | 功能描述:光纖發(fā)射器、接收器、收發(fā)器 1x9 622Mb/s SR Txcvr 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: |
| HFBR-5208XX | 制造商:AGILENT 制造商全稱:AGILENT 功能描述:Agilent HFBR/HFCT-5208M 1 x 9 Fiber Optic Transceivers for 622 Mb/s ATM/SONET/SDH Applications |
| HFBR-5208Z | 功能描述:光纖發(fā)射器、接收器、收發(fā)器 622Mbps ATM MMF 1x9 Trxcvr 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: |
| HFBR-5301 | 制造商:HP 制造商全稱:Agilent(Hewlett-Packard) 功能描述:Fibre Channel 133 MBd and Fibre Channel 133 MBd and Cost 1x9 Package Style |
| HFBR-5301AZT | 制造商:Avago Technologies 功能描述:FIBRE CHANNEL 133 MBD TRANSCEIVER 1X9 - Tape and Reel |
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