HFBR-5760AL Avago Technologies US Inc., HFBR-5760AL Datasheet - Page 14

• Manufacturer Part Number: HFBR-5760AL
• Manufacturer: Avago Technologies US Inc.

Specifications of HFBR-5760AL

• Optical Fiber Type: TX/RX
• Optical Rise Time: 3/2.2ns
• Optical Fall Time: 3/2.2ns
• Operating Temperature Classification: Industrial
• Peak Wavelength: 1308nm
• Package Type: SFP
• Operating Supply Voltage (min): 2.97V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.63V
• Output Current: 50mA
• Operating Temp Range: -40C to 85C
• Mounting: Snap Fit To Panel
• Pin Count: 20
• Lead Free Status / Rohs Status: Not Compliant

Notes:
1.
2.
3.
4.
5a. The power dissipation of the transmitter is calculated as the sum
5b. The power dissipation of the receiver is calculated as the sum of
6.
7.
8.
9.
10. The optical rise and fall times are measured from 10% to 90%
11a. Systematic Jitter contributed by the transmitter is defined as the
11b. Data Dependent Jitter contributed by the transmitter is specified
12a. Random Jitter contributed by the transmitter is specified with a
12b. Random Jitter contributed by the transmitter is specified with an
14
This is the maximum voltage that can be applied across the Dif-
ferential Transmitter Data Inputs to prevent damage to the input
ESD protection circuit.
The data outputs are terminated with 50 W . The Loss of Signal
output is terminated with 50 W connected to a pull-up resistor of
4.7 KW tied to V
The power supply current needed to operate the transmitter is
provided to differential ECL circuitry. This circuitry maintains a
nearly constant current flow from the power supply. Constant
current operation helps to prevent unwanted electrical noise
from being generated and conducted or emitted to neighboring
circuitry.
This is the receiver supply current measured in mA.
of the products of supply voltage and current.
the products of supply voltage and currents, minus the sum of
the products of the output voltages and currents.
Differential Output Voltage is internally ac coupled. The Loss of
Signal low and high voltages are measured with load condition
as mentioned in note 2.
The data output rise and fall times are measured between 20%
and 80% levels.
These optical power values are measured with the following con-
ditions:
The Beginning of Life (BOL) to the End of Life (EOL) optical power
degradation is typically 1.5 dB per the industry convention for
long wavelength LEDs. The actual degradation observed in
Avago Technologies’ 1300 nm LED products is < 1 dB, as specified
in this data sheet. Over the specified operating voltage and tem-
perature ranges. With 25 MBd (12.5 MHz square-wave), input sig-
nal. At the end of one meter of noted optical fiber with cladding
modes removed. The average power value can be converted to a
peak power value by adding 3 dB. Higher output optical power
transmitters are available on special request. Please consult with
your local Avago Technologies’ sales representative for further
details.
The relationship between Full Width Half Maximum and RMS
values for Spectral Width is derived from the assumption of a
Gaussian shaped spectrum which results in a 2.35 X RMS = FWHM
relationship.
when the transmitter is driven by a 25 MBd (12.5 MHz square-
wave) input signal. The ANSI T1E1.2 committee has designated
the possibility of defining an eye pattern mask for the transmitter
optical output as an item for further study. Avago Technologies
will incorporate this requirement into the specifications for these
products if it is defined. The HFBR-5760L products typically com-
ply with the template requirements of CCITT (now ITU-T) G.957
Section 3.2.5, Figure 2 for the STM- 1 rate, excluding the optical
receiver filter normally associated with single mode fiber mea-
surements which is the likely source for the ANSI T1E1.2 commit-
tee to follow in this matter.
combination of Duty Cycle Distortion and Data Dependent Jitter.
Systematic Jitter is measured at 50% threshold using a 155.52
MBd (77.5 MHz square-wave), 2
input signal.
with the FDDI test pattern described in FDDI PMD Annex A.5. See
Application Information - Transceiver Jitter Performance Section
of this data sheet for further details.
155.52 MBd (77.5 MHz square-wave) input signal.
IDLE Line State, 125 MBd (62.5 MHz square-wave) input signal.
See Application Information - Transceiver Jitter Performance Sec-
tion of this data sheet for further details.
CC
.
23
- 1 psuedorandom data pattern
13a. This specification is intended to indicate the performance of the
13b. This specification is intended to indicate the performance of the
14a. All conditions of Note 13a apply except that the measurement is
14b. All conditions of Note 13b apply except that the measurement is
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 Rate (BER) better than or equal to 1 x 10
At the Beginning of Life (BOL) over the specified operating tem-
perature and voltage ranges input is a 155.52 MBd, 2
data pattern with 72 “1” s and 72 “0”s inserted per the CCITT (now
ITU-T) recommendation G.958 Appendix I. Receiver data window
time-width is 1.23 ns or greater for the clock recovery circuit to
operate in. The actual test data window time-width is set to simu-
late the effect of worst case optical input jitter based on the trans-
mitter jitter values from the specification tables. The test window
time-width is HFBR-5760L 3.32 ns. Transmitter operating with a
155.52 MBd, 77.5 MHz square-wave, input signal to simulate any
cross-talk present between the transmitter and receiver sections
of the transceiver.
receiver section of the transceiver when Input Optical Power sig-
nal 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 Rate (BER) better than or equal to 2.5 x 10
• At the Beginning of Life (BOL)
• Over the specified operating temperature and voltage ranges
• Input symbol pattern is the FDDI test pattern defined in FDDI
• Receiver data window time-width is 2.13 ns or greater and
To test a receiver with the worst case FDDI PMD Active Input jitter
condition requires exacting control over DCD, DDJ and RJ jitter
components that is difficult to implement with production test
equipment. The receiver can be equivalently tested to the worst
case FDDI PMD input jitter conditions and meet the minimum
output data window time-width of 2.13 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
4.6 ns. This is possible due to the cumulative effect of jitter com-
ponents through their superposition (DCD and DDJ are 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 DCD (0.4 ns), DDJ
(1.0 ns), and RJ (2.14 ns) exist, the minimum window time-width
becomes 8.0 ns -0.4 ns - 1.0 ns - 2.14 ns = 4.46 ns, or conserva-
tively 4.6 ns. This wider window time-width of 4.6 ns guarantees
the FDDI PMD Annex E minimum window time-width of 2.13 ns
under worst case input jitter conditions to the Avago Technolo-
gies receiver.
• Transmitter operating with an IDLE Line State pattern, 125 MBd
made at the center of the symbol with no window time- width.
made at the center of the symbol with no window time-width.
PMD Annex A.5 with 4B/5B NRZI encoded data that contains
a duty cycle base-line wander effect of 50 kHz. This sequence
causes a near worst case condition for inter-symbol interfer-
ence.
centered at mid-symbol. This worst case window time-width is
the minimum allowed eye-opening presented to the FDDI PHY
PM_Data indication input (PHY input) per the example in FDDI
PMD Annex E. This minimum window time-width of 2.13 ns is
based upon the worst case FDDI PMD Active Input Interface
optical conditions for peak-to-peak DCD (1.0 ns), DDJ (1.2 ns)
and RJ (0.76 ns) presented to the receiver.
(62.5 MHz square-wave), input signal to simulate any cross-talk
present between the transmitter and receiver sections of the
transceiver.
-10
.
-10.
23
-1 PRBS