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參數(shù)資料
| 型號(hào)： | 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(duì)ATM，SONET的OC-12/SDH的STM - 4單模光纖收發(fā)器（應(yīng)用于自動(dòng)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(yè)數(shù)： | 2/12頁(yè) |
| 文件大?。?/td> | 170K |
| 代理商： | HFCT-5207 |
2
Transmitter Section
The transmitter section of the
HFCT-5207 is similar to 1300 nm
single mode transceivers in use at
the 155 Mb/s rate. It consists of a
1300 nm InGaAsP laser in an eye-
safe optical subassembly (OSA)
which mates to the fiber cable.
The laser OSA is driven by a
custom, silicon bipolar IC which
converts differential input PECL
logic signal into an analog laser
drive current.
Receiver Section
The receiver section of the
transceiver provides a full set of
features including an integral
clock and data recovery (CDR)
circuit together with an optional,
selectable receiver local clock
source.
The receiver utilizes an InGaAs
PIN photodiode mounted
together with a GaAs transimped-
ance preamplifier IC in an OSA.
This OSA is connected to a
custom, silicon bipolar circuit
providing post-amplification and
quantization, CDR function, and
optical signal detection.
CDR Function
In normal operation, the CDR
data loop is able to acquire and
maintain bit lock without the use
of the optional, external refer-
ence clock. This loop consists of
a patented phase/frequency
detector with false-lock protec-
tion. The recovered clock is used
to re-time the quantizer data
output, which completes the full
CDR function.
The relative timing relationship
between the output re-timed data
and the recovered clock signals is
shown graphically in Figure 2.
For input optical power greater
than the specified receiver
sensitivity of -28 dBm, the bit-
error-ratio will be better than
1 x 10
-10
. As the input power is
decreased by several dB, the bit-
error-ratio degrades. Within 1 dB
below the 1 x 10
-2
BER input
optical power level, the CDR will
begin to lose lock and the clock
frequency will drift from
622.08 MHz. Once the CDR loses
lock, the clock frequency will
sweep through the entire V
CO
range, about 540 to 700 MHz.
The rate of the sweep is inversely
proportional to the input optical
power and will reach its
maximum at a point of 2 dB
below the lock point. Since data
is retimed to the clock, a loss of
lock will produce an output data
stream consisting of randomly
switching data bits, i.e. noise.
Figure 1. Block Diagram.
Figure 2. Relative Timing Relationship Between Output Retimed Data and
Recovered Clock Signals.
RECOVERED CLOCK 2
ELECTRICAL SUBASSEMBLY
CLOCK & DATA
RECOVERY
AND POST
AMPLIFIER IC
LASER
DRIVER
IC
TOP VIEW
PIN PHOTODIODE
OPTICAL
SUB-
ASSEMBLIES
LASER
PRE-
AMP IC
RETIMED DATA 2
REFERENCE CLOCK
LOCK-TO-REFERENCE
SIGNAL DETECT
DATA 2
LASER BIAS MONITOR
DUPLEX SC
RECEPTACLE
TRANSMIT
DISABLE
POWER
MONITOR
BAUD INTERVAL
CLOCK PERIOD
CLK
CLK
RD
RD
V
OH
V
OL
V
OH
V
OL
V
OH
V
OL
V
OH
V
OL
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HFCT-5208 | SC Duplex Single Mode(SC雙工單模式收發(fā)器) |
| HFCT-5215D | 155 Mb/s Single Mode Laser Transceiver for ATM, SONET OC-3/SDH STM-1 (L1.1)(應(yīng)用于ATM, SONET OC-3/SDH STM-1 (L1.1)的155 Mb/s單模式激光收發(fā)器) |
| HFCT-5215B | 155 Mb/s Single Mode Laser Transceiver for ATM, SONET OC-3/SDH STM-1 (L1.1)(應(yīng)用于ATM, SONET OC-3/SDH STM-1 (L1.1)的155 Mb/s單模式激光收發(fā)器) |
| HFCT-5215M | 155 Mb/s Single Mode Laser Transceiver for ATM, SONET OC-3/SDH STM-1 (L1.1)(應(yīng)用于ATM, SONET OC-3/SDH STM-1 (L1.1)的155 Mb/s單模式激光收發(fā)器) |
| 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(zhǎng):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(zhǎng):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(zhǎng):850 nm 最大工作溫度: 最小工作溫度: 封裝 / 箱體: 封裝: |
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