HFCT-5006 Avago Technologies US Inc., HFCT-5006 Datasheet - Page 7
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HFCT-5006
Manufacturer Part Number
HFCT-5006
Description
Fiber Optics, Evaluation Kit
Manufacturer
Avago Technologies US Inc.
Datasheet
1.AFCT-5961TGZ.pdf
(16 pages)
Specifications of HFCT-5006
Silicon Core Number
HFCT-5954xxxZ, AFCT-5961xxxZ, AFCT-5964xxxZ
Kit Contents
OC-3/OC-12 LC Evaluation Board, Associated Technical Literature
Main Purpose
Interface, Fiber Optics
Embedded
No
Utilized Ic / Part
HFCT-595x, AFCT-596x
Primary Attributes
SFF LC Singlemode for SONET/SDH, ATM Applications
Operating Voltage
3.14 V to 3.47 V
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Secondary Attributes
-
Lead Free Status / Rohs Status
Details
Application Information
The Applications Engineering Group at Avago Tech-
nologies is available to assist you with technical under-
standing and design trade-offs associated with these
transceivers. You can contact them through your Avago
Technologies sales representative.
The following information is provided to answer some
of the most common questions about the use of the
parts.
Optical Power Budget and
Link Penalties
The worst-case Optical Power Budget (OPB) in dB for a
fiber-optic link is determined by the difference between
the minimum transmitter output optical power (dBm
avg) and the lowest receiver sensitivity (dBm avg). This
OPB provides the necessary optical signal range to
establish a working fiber-optic link. The OPB is allocated
for the fiber-optic cable length and the corresponding
link penalties. For proper link performance, all penalties
that affect the link performance must be accounted for
within the link optical power budget.
Figure 6a. Recommended dc Coupled Interface Circuit
T
7
Note: C1 = C2 = C3 = 10 nF or 100 nF
* 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
TRANSCEIVER INPUTS
7
TERMINATE AT
4
130 Ω
6
5
100 Ω
130 Ω
C1
C2
1 µH
1 µH
C5 *
10 µF
C4 *
10 µF
Electrical and Mechanical Interface
Recommended Circuit
Figures 6a and 6b show recommended dc and ac
coupled circuits for deploying the Avago Technologies
transceivers in +3.3 V systems.
Data Line Interconnections
Avago Technologies AFCT-5961TLZ/TGZ/ATLZ/ATGZ/
NLZ/NGZ fiber-optic transceivers are designed to couple
to +3.3 V PECL signals. The transmitter driver circuit
regulates the output optical power. The regulated light
output will maintain a constant output optical power
provided the data pattern is reasonably balanced in
duty cycle. If the data duty cycle has long, continu-
ous state times (low or high data duty cycle), then the
output optical power will gradually change its average
output optical power level to its preset value.
Z = 50 Ω
Z = 50 Ω
Z = 50 Ω
Z = 50 Ω
Z = 50 Ω
V
CC
C3
(+3.3 V)
10 µF
130 Ω
100 Ω
DEVICE INPUTS
TERMINATE AT
130 Ω
82 Ω
V
CC
130 Ω
(+3.3 V)
TD-
TD+
RD+
RD-
SD
PHY DEVICE
V
CC
V
LVPECL
LVPECL
CC
(+3.3 V)
(+3.3 V)