HFBR-5301 Avago Technologies, HFBR-5301 Datasheet - Page 11

• Manufacturer Part Number: HFBR-5301
• Description: Fibre Channel 133 Mbd And 266 Mbd Transceivers In Low Cost 1x9 Package Style
• Manufacturer: Avago Technologies

Notes:
1. This is the maximum voltage that can be applied across the Differential Transmitter Data Inputs to prevent damage to the input ESD protec-
2. When component testing these products do not short the receiver data or signal detect outputs directly to ground to avoid damage to the
3. The outputs are terminated with 50 W connected to VCC - 2 V.
. The power supply current needed to operate the transmitter is provided to differential ECL circuitry. This circuitry maintains a nearly constant
5. These optical power values are measured as follows:
6. The Extinction Ratio is a measure of the modulation depth of the optical signal. The data “0” output optical power is compared to the data “1”
7. This parameter complies with the requirements for the tradeoffs between center wave-length, spectral width, and rise/fall times shown in
8. The optical rise and fall times are measured from 10% to 90% when the transmitter is driven by a 25 MBd (12.5 MHz square-wave) input sig-
8.a. The optical rise and fall times are measured from 10% to 90% when the transmitter is driven by a 25 MBd (12.5 MHz square-wave) input sig-
9. Deterministic Jitter is defined as the combination of Duty Cycle Distortion and Data Dependent Jitter. Deterministic Jitter is measured with a
10. Random Jitter is specified with a sequence of K28.7 (square wave of alternating 5 ones and 5 zeros) data bytes and evaluated at a Bit Error
11. This specification is intended to indicate the performance of the receiver section of the transceiver when Input Optical Power signal char-
12. All conditions of Note 11 apply except that the measurement is made at the center of the symbol with no window time-width.
12a. All conditions of Note 11a apply except that the measurement is made at the center of the symbol with no window time-width.
13. This value is measured during the transition from low to high levels of input optical power.
1. This value is measured during the transition from high to low levels of input optical power.
15. These values are measured with the outputs terminated into 50 W connected to VCC - 2 V and an input optical power level of -1 dBm aver-
16. The power dissipation value is the power dissipated in the receiver itself. Power dissipation is calculated as the sum of the products of supply
tion circuit.
part.
current flow from the power supply. Constant current operation helps to prevent unwanted electrical noise from being generated and con-
ducted or emitted to neighboring circuitry.
• 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 wave-
length LEDs. The actual degradation observed in Avago’s 1300 nm LED products is < 1 dB as specified in this data sheet.
• Over the specified operating voltage and temperature ranges.
• With 25 MBd (12.5 MHz squarewave) input signal.
• 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.
peak output optical power and expressed as a percentage. With the transmitter driven by a 12.5 MHz square-wave signal, the average optical
power is measured. The data “1” peak power is then calculated by adding 3dB to the measured average optical power. The data “0” output op-
tical power is found by measuring the optical power when the transmitter is driven by a logic “0” input. The extinction ratio is the ratio of the
optical power at the “0” level compared to the optical power at the “1” level expressed as a percentage or in decibels.
Figure 8.
nal. This parameter complies with the requirements for the tradeoffs between center wavelength, spectral width, and rise/fall times shown in
Figure 8.
nal.
test pattern consisting of repeating K28.5 (00111110101100000101) data bytes and evaluated per the method in FC-PH Annex A..3.
Ratio (BER) of 1 x 10-12 per the method in FC-PH Annex A...
acteristics 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 specified to provide output data with a Bit Error Rate (BER) better than or
equal to 1 x 10-12.
• At the Beginning of Life (BOL)
• Over the specified operating temperature and voltage ranges.
• Input is a 266 MBd, 27 – 1 psuedorandom data pattern.
• Receiver data window time-width is ± 0.9 ns or greater and centered at mid-symbol. This data window time width is calculated to simulate
the effect of worst case input jitter per FC-PH Annex J and clock recovery sampling position in order to insure good operation with the vari-
ous FC-0 receiver circuits.
• The integral transmitter is operating with a 266 MBd, 133 MHz square-wave, input signal to simulate any cross-talk present between the
transmitter and receiver sections of the transceiver.
• The maximum total jitter added by the receiver and the maximum total jitter presented to the clock recovery circuit comply with the maxi-
mum limits listed in Annex J, but the allocations of the Rx added jitter between deterministic jitter and random jitter are different than in An-
nex J. 11a. Same as Note 11 except:
• The receiver input signal is a 133 MBd, 27 - 1 psuedorandom data patter.
• The integral transmitter is operating with a 133 MBd, 66.5 MHz square wave.
• The receiver data window width is ± 1.73 ns.
• The receiver added jitter maximums and allocations are identical to the limits listed in Annex J.
age.
voltage and supply current, minus the sum of the products of the output voltages and currents.