AFCT-5963ATLZ Avago Technologies US Inc., AFCT-5963ATLZ Datasheet - Page 8

• 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

Figure 6b. Recommended ac coupled interface circuit
The AFCT-5963TLZ/TGZ/ATLZ/ATGZ/NLZ/NGZ
have a transmit disable function which is a
single-ended +3.3 V TTL input which is dc-
coupled to pin 8.
As for the receiver section, it is internally ac-
coupled between the preamplifier and the
postamplifier stages. The actual Data and Data-
bar outputs of the postamplifier are dc-coupled
to their respective output pins (pins 4, 5). The
two data outputs of the receiver should be
terminated with identical load circuits.
Signal Detect is a single-ended, +3.3 V TTL
output signal that is dc-coupled to pin 3 of the
module. Signal Detect should not be ac-coupled
externally to the follow-on circuits because of its
infrequent state changes.
Power Supply Filtering and Ground Planes
It is important to exercise care in circuit board
layout to achieve optimum performance from
these transceivers. Figures 6a and 6b show the
power supply circuit which complies with the
small form factor multisource agreement. It is
8
T
Note: C1 = C2 = C3 = 10 nF or 100 nF
Note A: CIRCUIT ASSUMES OPEN EMITTER OUTPUT
Note B: WHEN INTERNAL BIAS IS PROVIDED REPLACE SPLIT RESISTORS WITH 100 W TERMINATION
* C4 AND C5 ARE OPTIONAL BYPASS CAPACITORS FOR ADDITIONAL LOW FREQUENCY NOISE FILTERING.
DIS
T
R
X
X
(LVTTL)
10
1
9
2
8
3
7
82 Ω
130 Ω
4
130 Ω
V
6
CC
5
(+3.3 V)
82 Ω
130 Ω
130 Ω
C2
C1
100 nF
1 µH
1 µH
100 nF
100 nF
100 nF
100 nF
C5 *
10 µF
C4 *
10 µF
further recommended that a continuous ground
plane be provided in the circuit board directly
under the transceiver to provide a low inductance
g r o u n d f o r s i g n a l r e t u r n c u r r e n t . T h i s
recommendation is in keeping with good high
frequency board layout practices.
Package footprint and front panel considerations
The Avago Technologies transceivers comply with
the circuit board “Common Transceiver Footprint”
hole pattern defined in the current multisource
agreement which defined the 2 x 5 package style.
This drawing is reproduced in Figure 7 with the
addition of ANSI Y14.5M compliant dimensioning
to be used as a guide in the mechanical layout
of your circuit board. Figure 8 shows the front
panel dimensions associated with such a layout.
Eye Safety Circuit
For an optical transmitter device to be eye-safe
in the event of a single fault failure, the transmitter
must either maintain eye-safe operation or be
disabled.
Z = 50 Ω
Z = 50 Ω
Z = 50 Ω
Z = 50 Ω
Z = 50 Ω
V
CC
C3
(+3.3 V)
100 nF
10 µF
130 Ω
82 Ω
130 Ω
V
CC
82 Ω
130 Ω
(+3.3 V)
RD+
TD-
TD+
RD-
SD
130
Ω
LVTTL
V
CC
V
(+3.3 V)
CC
(+3.3 V)
NOTE A
NOTE B