HFBR-5301 Avago Technologies, HFBR-5301 Datasheet - Page 5

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

Transceiver Jitter Performance
The Avago 1300 nm transceivers are designed to operate
per the system jitter allocations stated in FC-PH Annex
A..3 and A... The Avago 1300 nm transmitters will
tolerate the worst case input electrical jitter allowed,
without violating the worst case output optical jitter
requirements. The Avago 1300 nm receivers will tolerate
the worst case input optical jitter allowed without violat-
ing the worst case output electrical jitter allowed.
The jitter specifications stated in the following tables are
derived from the values in FC-PH Annex A..3 and A...
They represent the worst case jitter contribution that the
transceivers are allowed to make to the overall system
jitter without violating the allowed allocation. In prac-
tice, the typical contribution of the Avago transceivers is
below these maximum allowed amounts.
Recommended Handling Precautions
Avago recommends that normal static precautions be
taken in handling and assembly of these transceivers
to prevent damage and/or degradation which may be
induced by electrostatic discharge (ESD). These transceiv-
ers are certified as MIL-STD- 883C Method 3015. Class 2
devices.
Care should be used to avoid shorting the receiver data
or signal detect outputs directly to ground.
Figure 6. Recommended Decoupling and Termination Circuits.
5
TERMINATION
AT PHY
DEVICE
INPUTS
NO INTERNAL CONNECTION
V
Rx
R6
EE
1
RD
R5
RD
2
V
CC
C6
RD
R7
RD
3
R8
SD
SD
4
HFBR-530X
TOP VIEW
R10
R9
C1
TRANSCEIVER
V
AT V
C3
Rx
V
5
CC
CC
L1
V
CC
FILTER
CC
PINS
NO INTERNAL CONNECTION
V
6
Tx
CC
C4
L2
C2
7
TD
TD
TERMINATION
AT TRANSCEIVER
INPUTS
8
R1
TD
R2
V
CC
9
V
Tx
C5
R3
EE
R4
Solder and Wash Process Compatibility
The transceivers are delivered with a protective process
plug inserted into the duplex SC connector receptacle.
This process plug protects the optical subassemblies dur-
ing wave solder and aqueous wash processing and acts
as a dust cover during shipping.
These transceivers are compatible with industry standard
wave and hand solder processes.
Shipping Container
The transceiver is packaged in a shipping container de-
signed to protect it from mechanical and ESD damage
during shipment or storage.
Board Layout – Decoupling Circuit and Ground Planes
You should take care in the layout of your circuit board
to achieve optimum performance from these transceiv-
ers. Figure 6 provides a good example of a schematic for
a power supply decoupling circuit that works well with
these parts. Avago further recommends that a contigu-
ous ground plane be provided in the circuit board directly
under the transceiver to provide a low inductance ground
for signal return current. This recommendation is in keep-
ing with good high frequency board layout practices.
TD
NOTES:
THE SPLIT-LOAD TERMINATIONS FOR ECL
SIGNALS NEED TO BE LOCATED AT THE INPUT
OF DEVICES RECEIVING THOSE ECL SIGNALS.
RECOMMEND 4-LAYER PRINTED CIRCUIT
BOARD WITH 50 OHM MICROSTRIP SIGNAL
PATHS BE USED.
R1 = R4 = R6 = R8 = R10 = 130 ohms.
R2 = R3 = R5 = R7 = R9 = 82 ohms.
C1 = C2 = C3 = C5 = C6 = 0.1 µF.
C4 = 10 µF.
L1 = L2 = 1 µH COIL OR FERRITE INDUCTOR.