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參數(shù)資料
| 型號： | AFCT-5943ATGZ |
| 元件分類： | 光收發(fā) |
| 英文描述： | FIBER OPTIC TRANSCEIVER, 1260-1360nm, 2700Mbps(Tx), 2700Mbps(Rx), THROUGH HOLE MOUNT, LC CONNECTOR |
| 封裝： | ROHS COMPLIANT, DIP-10 |
| 文件頁數(shù)： | 10/17頁 |
| 文件大?。?/td> | 389K |
| 代理商： | AFCT-5943ATGZ |
2
Functional Description
Receiver Section
Design
The receiver section for the AFCT-5943xxxZ contains an
InGaAs/InP photo detector and a preamplifier mount-
ed in an optical subassembly. This optical subassembly
is coupled to a postamp/decision circuit on a circuit
board. The design of the optical assembly is such that
it provides better than 27 dB Optical Return Loss (ORL).
The postamplifier is ac coupled to the preamplifier
as illustrated in Figure 1. The coupling capacitors are
large enough to pass the SONET/SDH test pattern at
155 Mb/s, 622 Mb/s and 2488 Mb/s without significant
distortion or performance penalty. For multirate appli-
cations the sensitivity will meet the maximum SONET
specification for OC48 across all datarates (-19 dBm),
also for DC balanced codes, e.g. 8B/10B. For codes
which have a significantly lower frequency content, jit-
ter and pulse distortion could be degraded.
The receiver outputs are squelched at Signal Detect
deasserts. That is, when the light input decreases to
typical -27 dBm or less, the Signal Detect deasserts i.e.
the SD Output goes to a PECL low state. This forces the
DATA OUT and DATA OUT Bar to go PECL levels high
and low respectively.
Figure 1 also shows a filter function which limits the
bandwidth of the preamp output signal. The filter is de-
signed to bandlimit the preamp output noise and thus
improve the receiver sensitivity.
These components will reduce the sensitivity of the re-
ceiver as the signal bit rate is increased above 2.7 Gb/s.
Noise Immunity
The receiver includes internal circuit components to
filter power supply noise. However under some condi-
tions of EMI and power supply noise, external power
supply filtering may be necessary (see Application Sec-
tion).
The Signal Detect Circuit
The signal detect circuit works by sensing the peak level
of the received signal and comparing this level to a ref-
erence. The SD output is low voltage TTL.
Figure 1. Receiver Block Diagram
TRANS-
IMPEDANCE
PRE-
AMPLIFIER
FILTER
GND
AMPLIFIER
PECL
OUTPUT
BUFFER
TTL
OUTPUT
BUFFER
DATA OUT
SIGNAL
DETECT
CIRCUIT
SD
DATA OUT
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| AFCT-5962ATLZ | FIBER OPTIC TRANSCEIVER, 1261-1580nm, 155Mbps(Tx), 155Mbps(Rx), BOARD/PANEL MOUNT, DIP, LC CONNECTOR |
| AFCT-5962NGZ | FIBER OPTIC TRANSCEIVER, 1261-1580nm, 155Mbps(Tx), 155Mbps(Rx), BOARD/PANEL MOUNT, DIP, LC CONNECTOR |
| AFCT-5962NLZ | FIBER OPTIC TRANSCEIVER, 1261-1580nm, 155Mbps(Tx), 155Mbps(Rx), BOARD/PANEL MOUNT, DIP, LC CONNECTOR |
| AFCT-5962TGZ | FIBER OPTIC TRANSCEIVER, 1261-1580nm, 155Mbps(Tx), 155Mbps(Rx), BOARD/PANEL MOUNT, DIP, LC CONNECTOR |
| AFCT-5962TLZ | FIBER OPTIC TRANSCEIVER, 1261-1580nm, 155Mbps(Tx), 155Mbps(Rx), BOARD/PANEL MOUNT, DIP, LC CONNECTOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AFCT-5943ATLZ | 功能描述:光纖發(fā)射器、接收器、收發(fā)器 Transceiver 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: |
| AFCT-5943GZ | 功能描述:光纖發(fā)射器、接收器、收發(fā)器 Transceiver 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: |
| AFCT-5943LZ | 功能描述:光纖發(fā)射器、接收器、收發(fā)器 Transceiver 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: |
| AFCT-5943TGZ | 功能描述:光纖發(fā)射器、接收器、收發(fā)器 Transceiver 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: |
| AFCT-5943TLZ | 功能描述:光纖發(fā)射器、接收器、收發(fā)器 Transceiver 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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