HFBR-5106T Agilent(Hewlett-Packard), HFBR-5106T Datasheet - Page 14

• Manufacturer Part Number: HFBR-5106T
• Description: 100VG-AnyLAN Multimode Fiber Transceivers in Low Cost 1x9 Package Style
• Manufacturer: Agilent(Hewlett-Packard)

Notes:
1. This is the maximum voltage that can
2. The outputs are terminated with 50
3. The power supply current needed to
4. This value is measured with the
5. The power dissipation value is the
6. This value is measured with respect to
7. The output electrical rise and fall times
8. Random Jitter contributed by the
9. These optical power values are
be applied across the Differential
Transmitter Data Inputs to prevent
damage to the input ESD protection
circuit.
connected to V
operate the transmitter is supplied to
differential ECL circuitry. This
circuitry maintains a nearly constant
current from the power supply.
Constant current operation helps to
prevent unwanted electrical noise from
being generated and conducted or
emitted to neighboring circuitry.
outputs terminated into 50
connected to V
Optical Power Level of –14 dBm
average.
power dissipated in the receiver itself.
Power dissipation is calculated as the
sum of the products of supply voltage
and currents, minus the sum of the
products of the output voltages and
currents.
V
50
are measured between 20% and 80%
levels with the output connected to
V
receiver is specified with a 120 MBd
(60 MHz square-wave) input signal.
The input optical power level is at
maximum "P
measured with the following
conditions:
• At the Beginning of Life (BOL). The
• At the end of one meter of noted
• Over the specified operating voltage
• (12.5 MHz square-wave) input
CC
CC
actual FDDI specification is 1.5 dB
lower power at the End of Life for
the equipment. The definition of
Beginning of Life (BOL) to the End
of Live (EOL) optical power
degradation is assumed to be 1.0 dB
per the industry convention for
1300 nm LEDs. The actual
degradation observed in normal
commercial environments is
considerably less than this amount
with Hewlett-Packard’s 1300 nm
LED products.
fiber with cladding modes removed.
and temperature ranges.
–2 V through 50 .
with the output terminated into
connected to V
IN MIN
CC
CC
–2 V.
–2 V and an Input
. (W)".
CC
–2 V.
10. The same comments of Note 9 apply
11. The transmitter provides compliance
12. This parameter complies with 802.12.
13. The optical rise and fall times are
14. The optical rise and fall times are
15. Random Jitter contributed by the
16. This specification is intended to indi-
except that industry convention for
800 nm LED BOL to EOL aging is 3
dB. This value for Output Optical
Power provides a minimum of 7.5 dB
optical power budget at the EOL,
which provides at least 500 meter link
lengths with margin left over for
overcoming normal passive losses,
such as in-line connectors in the cable
plant. The actual degradation observed
in normal commercial environments is
considerably less than this amount
with Hewlett-Packard 800 nm LED
products.
with 802.12. An Output Optical Power
level of <–45 dBm average in
response to a logic "0" input. This
specification applies to either
62.5/125 m or 50/125 m fiber
cables.
measured from 10% to 90% when the
transmitter is driven by a 12.5 MHz
square-wave input signal.
measured from 10% to 90% when the
transmitter is driven by a 12.5 MHz
square-wave input signal.
transmitter is specified with a 60 MBd
square-wave input signal.
cate the performance of the receiver
section of the transceiver when Input
Optical Power signal characteristics
are present per the following
definitions. The Input Optical Power
dynamic range from the minimum
level (with a window time-width) to
the maximum level is the range over
which the receiver is guaranteed to
provide output data with a Bit Error
Ratio (BER) better than or equal
to 10
• At the Beginning of Life (BOL).
• Over the specified operating
• Receiver data window opening time-
signal. The average power value can
be converted to a peak power value
by adding 3 dB. Higher output
optical power transmitters are
available upon special request.
temperature and voltage ranges.
width is 2.2 ns or greater and
centered at mid-symbol. This worst
case window opening time-width is
the minimum allowed eye-opening
presented to the PHY input per
802.12. This minimum window
time-width of 2.2 ns is based upon
-8
.
16a. All conditions of Note 16 apply except
17. All conditions of Note 16 apply except
17a. All conditions of Note 17 apply
18. This value is measured during the
19. The high_light (Signal Detect) output
• Transmitter operating with a 120
that the BER requirement is tightened
to 1x10
time-width test condition is adjusted to
5.2 ns to reflect the HFBR-5107 trans-
mitter contributed jitter values per the
specification table.
that the measurement is made at the
center of the symbol with no window
time-width.
except that the BER requirement is
tightened to 1x10
transition from low to high levels of
input optical power.
shall be asserted within 100 s after a
step increase of the Input Optical
Power. The step will be from a low
Input Optical Power
the range between greater than Pm
and (Pm + 4 dB). Pm is the relevant
the worst case 802.12 Active Input
Interface optical conditions peak-to-
peak SJ (1.6 ns) and RJ (0.77 ns)
presented to the receiver.
To test a receiver with the worst
case 802.12 Active Input Jitter
condition requires exacting control
over SJ and RJ jitter components.
This is difficult to implement with
production test equipment. The
receiver can be equivalently tested
to the worst case 802.12 input jitter
conditions and meet the minimum
output data window time-width of
2.2 ns This is accomplished by
using a nearly ideal input optical
signal (No DCD, insignificant DDJ
and RJ) and measuring for a wider
window time-width of 4.0 ns. This is
possible due to the cumulative addi-
tion of jitter components through
their superposition. (SJ is directly
additive and RJ components are rms
additive). Specifically, when a
nearly ideal input optical test signal
is used and the maximum receiver
peak-to-peak jitter contributions of
SJ (X.Xns), and RJ (X.Xns) exist,
the minimum window time-width
becomes 4.4 ns. This wider window
time-width of 4.4 ns guarantees the
802.12 time-width of 2.2 ns under
worst case input jitter conditions to
the Hewlett-Packard receiver.
MBd (60 MHz square-wave), input
signal to simulate any cross-talk
present between the transmitter and
receiver sections of the transceiver.
-8
and the minimum window
-8
.
–45 dBm, into
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