參數(shù)資料
型號(hào): HFCT-5103B
英文描述: SC Duplex Single Mode Transceiver(SC雙工單模式收發(fā)器)
中文描述: SC雙工單模收發(fā)器(資深大律師雙工單模式收發(fā)器)
文件頁(yè)數(shù): 4/8頁(yè)
文件大小: 233K
代理商: HFCT-5103B
4
Functional Description
Transmitter Section
Design
The transmitter section, Figure 3,
uses a buried heterostructure
Fabry-Perot laser as its optical
source. The packaging of this
laser is designed for repeatable
coupling into single mode fiber
while maintaining compliancy
with IEC 825 Class 1 and CDRH
Class I eye safety requirements.
The optical output is controlled
by a custom IC which detects the
laser output via the monitor
photo-diode. This IC provides
both dc and ac current drive to
the laser to ensure correct
modulation, eye diagram and
extinction ratio over temperature,
supply voltage and life.
PCB mounting
The HFCT-5103 has two
solderable mounting studs. These
studs are not electrically
connected. The transceiver is
designed for common production
processes. It may be wave
soldered and aqueous washed
providing the process plug is in
place.
Each process plug can only be
used once during processing,
although with subsequent use, it
can be used as a dust cover.
DATA
DATA
PECL
INPUT
LASER
MODULATOR
LASER
LASER BIAS
DRIVER
LASER BIAS
CONTROL
PHOTODIODE
(rear facet monitor)
Figure 3 - Simplified Transmitter Schematic
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