AFCT 5805AZ
AFCT-5805xxxZ
155 Mb/s Single Mode Fiber Optic Transceiver
for ATM, SONET OC-3/SDH STM-1
Data Sheet
Description Features
1300 nm Single mode transceiver for links up to 15
General
Km
The AFCT-5805xxxZ transceiver is a high performance,
Compliant with T1.646-1995 Broadband ISDN and
cost effective module for serial optical data communica -
T1E1.2/98-011R1 SONET network to customer
tions applications speciefi d for a data rate of 155 Mb/s. It
installation interface standards
is designed to provide a SONET/SDH compliant link for
Compliant with T1.105.06 SONET physical layer
intermediate reach links operating at +3.3 V or +5.0 V
specifications standard
input voltage.
Multisourced 1 x 9 pin configuration
Can replace LED multisourced 1 x 9 transceivers
Transmitter Section
Unconditionally eyesafe laser IEC 825/CDRH Class 1
The transmitter section of the AFCT-5805xxxZ consists
compliant
of a 1300 nm FP laser in an eyesafe optical subassembly
Integral duplex SC connector receptacle compatible
(OSA) which mates to the fiber cable. The laser OSA is
with TIA/EIA and IEC standards.
driven by a custom IC which converts differential input
RoHS compliant
PECL logic signals, ECL referenced (shifted) to +3.3 V or
+5 V supply, into an analog laser drive current. Two Temperature Ranges:
AFCT-5805BZ/DZ 0C to +70C
Receiver Section
AFCT-5805AZ/CZ -40C to +85C
AFCT-5805AMZ -40C to +85C
The receiver utilizes an InGaAs PIN photodiode mounted
AFCT-5805AEMZ -40C to +85C
together with a transimpedance preamplifier IC in an OSA.
Single +3.3 V or +5.0 V power supply operation
This OSA is connected to a circuit providing post- amplifi -
Wave solder and aqueous wash process compatible
cation quantization, and optical signal detection.
Manufactured in an ISO 9002 certified facility
Considerable EMI margin to FCC Class B
Applications
ATM 155 Mb/s links for LAN backbone switches and
routers
ATM 155 Mb/s links for WAN core, edge and access
switches and routers
ATM 155 Mb/s links for add/drop multiplexers and
demultiplexers
SONET OC-3/SDH STM-1 (S-1.1) interconnectionsELECTRICAL SUBASSEMBLY
PIN PHOTODIODE
DATA
PRE-
DATA
AMPLIFIER
POST
IC
AMPLIFIER IC
OPTICAL
DUPLEX SC
SUB-
RECEPTACLE
SIGNAL DETECT
ASSEMBLIES
DATA LASER
DRIVER LASER
DATA
IC
TOP VIEW
Figure 1. Block Diagram
Receiver Signal Detect Applications Information
Signal Detect is a basic fiber failure indicator. This is a
Typical BER Performance of Receiver versus Input Opti-
single-ended PECL output. As the input optical power
cal Power Level
is decreased, Signal Detect will switch from high to low
(deassert point) somewhere between sensitivity and
The AFCT-5805xxxZ transceiver can be operated at
the no light input level. As the input optical power is
Bit-Error-Rate conditions other than the required BER =
-10
increased from very low levels, Signal Detect will switch
1 x 10 of the ATM Forum 155.52 Mb/s Physical Layer
back from low to high (assert point). The assert level will be
Standard. The typical trade-off of BER versus Relative In -
at least 0.5 dB higher than the deassert level.
put Optical Power is shown in Figure 2. The Relative Input
Optical Power in dB is referenced to the actual sensitivity
Transceiver Specified for Wide Temperature Range Op - -10
of the device. For BER conditions better than 1 x 10 ,
eration more input signal is needed (+dB).
The AFCT-5805xxxZ is specified for operation over ex - -2
10
LINEAR EXTRAPOLATION OF
tended temperature range of -40 to +85C.
-4 -7
-3 10 THROUGH 10 DATA
10
Characterization of the parts has been performed over -4 BASED ON
10
ACTUAL DATA
the ambient operating temperature range in an airflow
-5
10
of 2 m/s. -6
10
-7
10
-8
10
Other Members of Avago Technologies SC Duplex
-9
10
-10
10
-11
10
155 Mb/s Product Family
-12
10
-13
10
HFCT-5801, 1300 nm single mode transceiver for
-14
10
-15
10
links up to 15 km. The part is based on the 2 x 9 in-
-5 -4 -3 -2 -1 0 1 2 3
dustry standard package and has laser bias, optical
power monitor and transmitter disable functions. Figure 2. Relative Input Optical Power - dBm. Avg.
2
BIT ERROR RATIO