AFCT-5963ATLZ Avago Technologies US Inc., AFCT-5963ATLZ Datasheet - Page 2

• Manufacturer Part Number: AFCT-5963ATLZ
• Description: TXRX OPT SM SONET OC3/SDH 2X5
• Manufacturer: Avago Technologies US Inc.
• Series: METRAKr

Specifications of AFCT-5963ATLZ

• Applications: General Purpose
• Data Rate: 155Mbps
• Wavelength: 1300nm
• Voltage - Supply: 3.1 V ~ 3.5 V
• Connector Type: LC Duplex
• Mounting Type: Through Hole
• Data Rate Max: 0.155Gbps
• Supply Voltage: 3.3V
• Wavelength Typ: 1300nm
• Leaded Process Compatible: Yes
• Optical Fiber Type: TX/RX
• Data Transfer Rate: 155Mbps
• Optical Rise Time: 2/2.2ns
• Optical Fall Time: 2/2.2ns
• Operating Temperature Classification: Industrial
• Peak Wavelength: 1360nm
• Package Type: DIP With Connector
• Operating Supply Voltage (min): 3.1V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.5V
• Output Current: 50mA
• Operating Temp Range: -40C to 85C
• Mounting: Snap Fit To Panel
• Pin Count: 10
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Functional Description
Receiver Section
Design
The receiver section for the AFCT-5963TLZ/
TGZ/ATLZ/ATGZ/NLZ/NGZ contains an InGaAs/
InP photo detector and a preamplifier mounted
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 14 dB Optical Return Loss (ORL).
The postamplifier is ac coupled to t h e
preamplifier as illustrated in Figure 1. The
coupling capacitors are large enough to pass
the SONET/SDH test pattern at 155 Mb/s without
significant distortion or performance penalty.
If a lower signal rate, or a code which has
significantly more low frequency content is used,
sensitivity, jitter and pulse distortion could be
degraded.
Figure 1 also shows a filter function which
limits the bandwidth of the preamp output
signal. The filter is designed to bandlimit the
preamp output noise and thus improve the
receiver sensitivity.
Figure 1. Receiver Block Diagram
2
TRANS-
IMPEDANCE
PRE-
AMPLIFIER
GND
FILTER
AMPLIFIER
CIRCUIT
SIGNAL
DETECT
These components will reduce the sensitivity of
the receiver as the signal bit rate is increased
above 155 Mb/s.
Noise Immunity
The receiver includes internal circuit components
to filter power supply noise. However under
some conditions of EMI and power supply
noise, external power supply filtering may be
necessary (see Application Section).
The Signal Detect Circuit
The signal detect circuit works by sensing the
level of the received signal and comparing this
level to a reference. The SD output is +3.3 V
TTL.
LVPECL
OUTPUT
BUFFER
LVTTL
OUTPUT
BUFFER
DATA OUT
DATA OUT
SD