HP HFBR-5601 Gigabit interface converters (gbic) for gigabit ethernet Datasheet

Agilent HFBR-5601/HFCT-5611
Gigabit Interface Converters
(GBIC) for Gigabit Ethernet
Data Sheet
Description
The HFBR-56xx/HFCT-56xx
family of interface converters
meet the Gigabit Interface
Converter specification Rev. 5.4,
an industry standard. The family
provides a uniform form factor for
a wide variety of standard
connections to transmission
media. The converters can be
inserted or removed from a host
chassis without removing power
from the host system.
The converters are suitable for
interconnections in the Gigabit
Ethernet hubs and switches
environment. The design of these
converters is also practical for
other high performance, point-topoint communication requiring
gigabit interconnections. Since
the converters are hot-pluggable,
they allow system configuration
changes simply by plugging in a
different type of converter.
The mechanical and electrical
interfaces of these converters to
the host system are identical for
all implementations of the
converter regardless of external
media type. A 20-pin connector is
used to connect the converter to
the host system. Surge currents
are eliminated by using pin
sequencing at this connector and
a slow start circuit. Two ground
tabs at this connector also make
contact before any other pins,
discharging possible componentdamaging static electricity. In
addition, the connector itself
performs a two-stage contact
sequence. Operational signals and
power supply ground make
contact in stage 1 while power
makes contact in stage 2.
The HFBR-5601 has been
developed with 850 nm short
wavelength VCSEL technology
while the HFCT-5611 is based on
1300 nm long wavelength Fabry
Perot laser technology.
Features
• Compliant with Gigabit Interface
Converter specification Rev. 5.4 (1)
• HFBR-5601 is compliant with
proposed specifications for
IEEE 802.3z/D5.0 Gigabit Ethernet
(1000 Base-SX)
• HFCT-5611 is compliant with the
ANSI 100-SM-LC-L revision 2
10 km link specification
• Performance:
HFBR-5601:
500 m with 50/125 µm MMF
220 m with 62.5/125 µm MMF
HFCT-5611:
550 m with 50/125 µm MMF
550 m with 62.5/125 µm MMF
10 km with 9/125 µm SMF
• Horizontal or vertical installation
• AEL Laser Class 1 eye safe per
IEC 60825-1
• AEL Laser Class I eye safe per
US 21 CFR
• Hot-pluggable
Applications
• Switch to switch interface
• High speed I/O for file servers
• Bus extension applications
Related Products
• 850 nm VCSEL, 1 x 9 and SFF
transceivers for 1000 base
SX applications (HFBR-53D5,
HFBR-5912E)
• 1300 nm, 1 x 9 Laser transceiver
for 1000 base-LX applications
(HFCT-53D5)
• Physical layer ICs available for
optical interface
(HDMP-1636A/46A)
The HFBR-5601 complies with
Annex G of the GBIC specification
Revision 5.4. In the 1000 BASE-SX
environment the HFBR-5601
achieves 220 m transmission
distance with 62.5 µm and 500 m
with 50 µm multimode fiber
respectively.
The HFCT-5611 complies with
Annex F of the GBIC specification
Revision 5.4 and reaches 10 km
with 9/125 µm single mode fiber.
Both the HFBR-5601 and the
HFCT-5611 are Class 1 Eye Safe
laser devices.
Serial Identification
The HFBR-56xx and HFCT-5611
family complies with Annex D
(Module Definition 4) of the GBIC
specification Revision 5.4, which
defines the Serial Identification
Protocol.
Definition 4 specifies a serial
definition protocol. For this
definition, upon power up,
MOD_DEF(1:2) (Pins 5 and 6 on
the 20-pin connector) appear as
NC. Pin 4 is TTL ground. When the
host system detects this
condition, it activates the public
domain serial protocol. The
protocol uses the 2-wire serial
CMOS E2PROM protocol of the
ATMEL AT24C01A or similar.
The data transfer protocol and the
details of the mandatory and
vendor specific data structures
are defined in Annex D of the
GBIC specification Revision 5.4.
Regulatory Compliance
See the Regulatory Compliance
Table for the targeted typical and
measured performance for these
transceivers.
The overall equipment design will
determine the level it is able to be
certified to. These transceiver
performance targets are offered as
a figure of merit to assist the
designer in considering their use
in equipment designs.
Electrostatic Discharge (ESD)
There are two design cases in
which immunity to ESD damage is
important.
The first case is during handling of
the transceiver prior to inserting it
into the host system. It is
important to use normal ESD
handling precautions for ESD
sensitive devices. These
precautions include using
grounded wrist straps, work
benches, and floor mats in ESD
controlled areas.
The second case to consider is
static discharges during insertion
of the GBIC into the host system.
There are two guide tabs
integrated into the 20-pin
connector on the GBIC. These
guide tabs are connected to
circuit ground. When the GBIC is
inserted into the host system,
these tabs will engage before any
of the connector pins. The mating
connector in the host system must
have its tabs connected to circuit
ground. This discharges any stray
static charges and establishes a
reference for the power supplies
that are sequenced later.
Note: HFBR-5601 is non-compliant for Tx fault timing.
2
Electromagnetic Interference (EMI)
Most equipment designs utilizing
these high-speed transceivers
from Agilent will be required to
meet the requirements of FCC in
the United States, CENELEC
EN55022 (CISPR 22) in Europe
and VCCI in Japan.
Immunity
Equipment utilizing these
transceivers will be subject to
radio-frequency electromagnetic
fields in some environments.
These transceivers have good
immunity to such fields due to
their shielded design.
Eye Safety
Laser-based GBIC transceivers
provide Class 1 (IEC 60825-1) and
Class I (US 21 CFR[J]) laser eye
safety by design. Agilent has
tested the current transceiver
design for compliance with the
requirements listed below under
normal operating conditions and
for compliance under single fault
conditions.
Outline Drawing
An outline drawing is shown in
Figure 1. More detailed drawings
are shown in Gigabit Interface
Converter specification Rev. 5.4.
GBIC Serial ID Memory Contents - HFBR-5601
Addr
0
1
2
3
4
5
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9
10
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Hex
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1
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1
0D
0
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32
16
0
0
41
47
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4C
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D3
ASCII
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Hex
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2D
35
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30
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20
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30
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0
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74
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1A
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ASCII
H
F
B
R
5
6
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Note: Blanks in ASCII column are numeric values not ASCII characters.
3
Addr
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ASCII
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ASCII
GBIC Serial ID Memory Contents - HFCT-5611
Addr
0
1
2
3
Hex
1
6
1
0
4
5
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7
8
9
10
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4E
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00
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D3
ASCII
A
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Addr
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Hex
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ASCII
H
F
C
T
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2D
35
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31
31
20
20
5
6
1
1
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Note: Blanks in ASCII column are numeric values not ASCII characters.
4
Addr
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71
Hex
39
38
30
36
ASCII
9
8
0
6
Addr
96
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Hex
20
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20
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32
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0
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4
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ASCII
Figure 1. Outline Drawing of HFBR-5601 and HFCT-5611.
5
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. The Gigabit/sec
Ethernet (GbE) IEEE 802.3z
standard identifies, and has
modeled, the contributions of
these OPB penalties to establish
the link length requirements for
62.5/125 µm and 50/125 µm multimode fiber usage. In addition,
single-mode fiber with standard
1300 nm Fabry Perot lasers have
been modeled and specified. Refer
to IEEE 802.3z standard and its
supplemental documents that
develop the model, empirical
results and final specifications.
10 km Link Support
As well as complying with the LX
5 km standard, the HFCT-56xx
specification provides additional
margin allowing for a 10 km
Gigabit Ethernet link on single
mode fiber. This is accomplished
by limiting the spectral width and
center wavelength range of the
transmitter while increasing the
output optical power and
improving sensitivity. All other LX
cable plant recommendations
should be followed.
CAUTION:
There are no user serviceable
parts nor any maintenance
required for the HFBR-56xx and
HFCT-56xx product family. All
adjustments are made at the
factory before shipment to our
customers. Tampering with or
modifying the performance of any
Agilent GBIC unit will result in
voided product warranty. It may
also result in improper operation
of the circuitry, and possible
overstress of the semiconductor
components. Device degradation
or product failure may result.
Connection of either the
HFBR-5601 or the HFCT-5611 to a
non-approved optical source,
operating above the
recommended absolute maximum
conditions, or operating in a
manner inconsistent with unit
design and function, may result in
hazardous radiation exposure and
may be considered an act of
modifying or manufacturing a
laser product. The person(s)
performing such an act is required
by law to recertify the laser
product under the provisions of
US 21 CFR (Subchapter J).
Regulatory Compliance
Feature
Electrostatic Discharge
(ESD) to the Electrical
Pins
Electrostatic Discharge
(ESD) to the Duplex SC
Receptacle
Electromagnetic
Interference (EMI)
Immunity
Laser Eye Safety
Test Method
MIL-STD-883C
Method 3015.4
Targeted Performance
Class 1 (>2000 V)
Variation of IEC 801-2
Typically withstand at least 15 kV without damage
when port is contacted by a Human Body Model
probe.
Margins are dependent on customer board and
chassis design.
FCC Class B
CENELEC EN55022 Class B
(CISPR 22A)
VCCI Class 1
Variation of IEC 801-3
US 21 CFR, Subchapter J per
paragraphs 1002.10 and 1002.12
EN 60825-1: 1994+A11
EN 60825-2: 1994
EN 60950: 1992+A1+A2+A3
Component Recognition
6
Underwriters Laboratories and
Canadian Standards Association
Joint Component Recognition for
Information Technology Equipment
Including Electrical Business
Equipment.
Typically show no measurable effect from a
10 V/m field swept from 27 to 1000 MHz applied to
the transceiver without a chassis enclosure
AEL Class I, FDA/CDRH
HFBR-5601 Accession No. 9720151-04
HFCT-5611 Accession No. 9521220-16
AEL Class 1, TUV Rheinland of North America
HFBR-5601 Certificate No. R9771018-7
HFCT-5611 Certificate No. 933/51083
Protection Class III
UL File E173874 (Pending)
20-Pin SCA-2 Host Connector Characteristics
Table 1. SCA-2 Host connector pin assignment
Pin
1
2
3
4
5
6
7
8
9
10
Name
RX_LOS
RGND
RGND
MOD_DEF(0)
MOD_DEF(1)
MOD_DEF(2)
TX_DISABLE*
TGND
TGND
TX_FAULT
Sequence
2
2
2
2
2
2
2
2
2
2
Pin
11
12
13
14
15
16
17
18
19
20
Name
RGND
-RX_DAT
+RX_DAT
RGND
VDDR
VDDT
TGND
+TX_DAT
-TX_DAT
TGND
Sequence
1
1
1
1
2
2
1
1
1
1
Notes:
A sequence value of 1 indicates that the signal is in the first group to engage during plugging of a module. A sequence value of 2 indicates that
the signal is the second and last group. The two guide pins integrated on the connector are connected to TGND. These two guide pins make
contact with circuit ground prior to Sequence 1 signals.
* This pin is tied high via 10 K pull-up resistor.
Table 2. Signal Definition
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Signal Name
RX_LOS
RGND
RGND
MOD_DEF(0)
MOD_DEF(1)
MOD_DEF(2)
TX_DISABLE
TGND
TGND
TX_FAULT
RGND
-RX_DAT
+RX_DAT
RGND
VDDR
VDDT
TGND
+TX_DAT
-TX_DAT
TGND
Input/Output
Output
Output
Input
Input/Output
Input
Output
Output
Output
Input
Input
Input
Input
Description
Receiver Loss of Signal, TTL High, open collector
Receiver Ground
Receiver Ground
TTL Low
SCL Serial Clock Signal
SDA Serial Data Signal
Transmit Disable
Transmitter Ground
Transmitter Ground
Transmit Fault
Receiver Ground
Received Data, Differential PECL, ac coupled
Received Data, Differential PECL, ac coupled
Receiver Ground
Receiver +5 V supply
Transmitter +5 V supply
Transmitter Ground
Transmit Data, Differential PECL, ac coupled
Transmit Data, Differential PECL, ac coupled
Transmitter Ground
Table 3. Module Definition
Defntn.
4
MOD_DEF(0) Pin 4
TTL Low
MOD_DEF(1) Pin 5
SCL
MOD_DEF(2) Pin 6
SDA
Note: All Agilent GBIC modules comply with Module Definition 4 of the GBIC specification Rev 5.4
7
Interpretation by host
Serial module definition protocol
Short Wavelength GBIC: HFBR-5601
Transmitter Section
The transmitter section consists
of an 850 nm VCSEL in an optical
subassembly (OSA), which mates
to the fiber cable. The VCSEL
OSA is driven by a custom, silicon
bipolar IC which converts
differential logic signals into an
analog Laser Diode drive current.
Receiver Section
The receiver includes a GaAs PIN
photodiode mounted together
with a custom, silicon bipolar
transimpedance preamplifier IC,
in an OSA. The OSA interfaces to
a custom silicon bipolar circuit
that provides post-amplification
and quantization. The postamplifier includes a Signal Detect
circuit that provides TTL
compatible logic-low output in
response to the detection of a
usable input optical signal.
Eye Safety Design
The laser driver is designed to be
Class 1 eye safe (CDRH21 CFR(J),
IEC 60825-1) under a single fault
condition. To be eye safe, only
one of two results can occur in
the event of a single fault. The
transmitter must either maintain
normal eye safe operation or the
transmitter should be disabled.
There are three key elements to
the safety circuitry: a monitor
diode, a window detector circuit,
and direct control of the laser
bias. The window detection circuit
monitors the average optical
power using the monitor diode. If
a fault occurs such that the dc
regulation circuit cannot maintain
the preset bias conditions within
±20%, the transmitter will
automatically be disabled. Once
this has occurred, an electrical
power reset will allow an
attempted turn-on of the
transmitter. TX_FAULT can also
be cleared by cycling TX_DISABLE
high for a time interval >10 µs.
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause catastrophic damage to the device. Limits apply to each parameter
in isolation, all other parameters having values within the recommended operating conditions. It should not be assumed that
limiting values of more than one parameter can be applied to the product at the same time. Exposure to the absolute maximum
ratings for extended periods can adversely affect device reliability.
Parameter
Storage Temperature
Supply Voltage
Data Input Voltage
Transmitter
Differential Input Voltage
Relative Humidity
Symbol
TS
VDDT
VDDR
TX_DAT
±TX_DAT
Min.
-40
-0.5
Typ.
Max.
+85
6.0
Unit
°C
V
Notes
-0.5
VDDT
2000
V
mV p-p
1
RH
5
95
%
Symbol
TA
TCASE
VDDT
VDDR
ITX + IRX
Min.
0
Unit
°C
°C
V
Notes
5.0
Max.
+60
+75
5.25
200
300
mA
3
Symbol
ISURGE
PDISS
Min.
Typ.
Max.
+30
1.58
Unit
mA
W
Notes
4
5
Recommended Operating Conditions
Parameter
Ambient Operating Temperature
Case Temperature
Supply Voltage
Supply Current
4.75
Typ.
2
Transceiver Electrical Characteristics
(TA = 0°C to +60°C, VCC = 4.75 V to 5.25 V)
Parameter
Surge Current
Power Dissipation
1.00
Notes:
1. Up to applied VDDT.
2. See Figure 1 for measurement point.
3. Maximum current is specified at V CC = maximum @ maximum operating temperature and end of life.
4. Hot plug above actual steady state current.
5. Total TX + R X.
8
HFBR-5601
Transmitter Electrical Characteristics
(TA = 0°C to +60°C, VCC = 4.75 V to 5.25 V
Parameter
Transmitter Differential Input Voltage
Transmit Fault Load
TX-DISABLE Assert Time
TX_DISABLE Negate Time
Time to initialize, includes reset of
TX_FAULT
TX_FAULT from fault to assertion
TX_DISABLE time to start reset
Symbol
±TX_DAT
TX_FAULTLoad
t_off
T-on
t_init
Max.
2000
10
10
1
300
Unit
mV p-p
kW
µsec
msec
msec
1
2
3
4
7
msec
µsec
5
6
Max.
2000
0.35
0.35
10
0.5
Unit
mV p-p
ns
ns
kW
V
Notes
V
tA,RX_LOS
VCC
+0.3
100
µs
tD,RX_LOS
100
µs
t_fault
t_reset
Min.
650
4.7
Typ.
10
Notes
Receiver Electrical Characteristics
(TA = 0°C to +60°C, VCC = 4.75 V to 5.25 V)
Parameter
Receiver Differential Output Voltage
Receiver Output Rise Time
Receiver Output Fall Time
Receiver Loss of Light Load
Receiver Loss of Signal Output Voltage
- Low
Receiver Loss of Signal Output Voltage
- High
Receiver Loss of Signal Assert Time Logic low to high
Receiver Loss of Signal Deassert Time
- Logic high to low
Symbol
±RX_DAT
trRX_DAT
tfRX_DAT
RX_LOSLoad
RX_LOSL
Min.
370
RX_LOSH
VCC
-0.5
Typ.
0.25
0.25
4.7
0.0
Notes:
1. Pull-up resistor on host V CC .
2. Rising edge of TX_DISABLE to fall of output signal below 10% of nominal.
3. Falling edge of TX_DISABLE to rise of output signal above 90% of nominal.
4. From power on or hot plug after VDDT >4.75 V or From negation of TX_DISABLE during reset of TX_FAULT.
5. From occurrence of fault (output safety violation or VDDT <4.5 V).
6. TX_DISABLE HIGH before TX_DISABLE set LOW.
7. 20 - 80% values.
9
7
7
1
HFBR-5601
Transmitter Optical Characteristics
(TA = 0°C to +60°C, VCC = 4.75 V to 5.25 V)
Parameter
Output Optical Power
50/125 µm, NA = 0.20 fiber
Output Optical Power
62.5/125 µm, NA = 0.275 fiber
Optical Extinction Ratio
Center Wavelength
Spectral Width - rms
Optical Rise/Fall Time
RIN12
Total Contributed Jitter
Coupled Power Ratio
Max. Pout TX_DISABLE Asserted
Symbol
PO
Min.
-9.5
PO
-9.5
lC
9
830
Typ.
-4
850
tr/tf
TJ
CPR
POFF
Max.
-4
860
0.85
0.26
-117
227
9
-35
Unit
dBm
avg.
dBm
avg.
dB
nm
nm rms
ns
dB/Hz
ps p-p
dB
dBm
Notes
Unit
dBm
avg.
nm
dB
dBm
avg.
dBm
avg.
Notes
2
dBm
dBm
ps
3
1, 4 and Figure 2
Receiver Optical Characteristics
(TA = 0°C to +60°C, VCC = 4.75 V to 5.25 V)
Parameter
Input Optical Power
Symbol
PIN
Min.
-17
Operating Center Wavelength
Return Loss
Receiver Loss of Signal - TTL Low
lC
770
12
PRX_LOS A
Receiver Loss of Signal - TTL High
PRX_LOS D
Stressed Receiver Sensitivity
62.5 µm fiber
50 µm fiber
Stressed Receiver Eye Opening
@TP4
Electrical 3 dB Upper Cutoff Frequency
Typ.
-22
860
-23
-31
Max.
0
-17
-26
-12.5
-13.5
201
1500
Notes:
1. 20 - 80 values.
2. Modulated with 2 7-1 PRBS pattern. Results are for a BER of IE-12.
3. Tested in accordance with the conformance testing requirements of IEEE802.3z.
4. Laser transmitter pulse response characteristics are specified by an eye diagram (Figure 2).
NORMALIZED AMPLITUDE
1.3
1.0
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0000000
0000000
000000000000
0000000
0000000
000000000000
0000000
0.8
0.5
0.2
0
-0.2
0
0.22
0.375
0.625
NORMALIZED TIME
0.78
Figure 2. Transmitter Optical Eye Diagram Mask
10
1.0
MHz
3
Long Wavelength GBIC: HFCT-5611
Transmitter Section
The transmitter section consists
of a 1300 nm MQW Fabry Perot
Laser in an optical subassembly
(OSA), which mates to the fiber
optic cable. The Laser OSA is
driven by a custom, silicon bipolar
IC which converts differential
PECL logic signals (ECL
referenced to a +5 V supply) into
an analog drive current to the
laser.
Receiver Section
The receiver includes a PIN
photodiode mounted together
with a custom, silicon bipolar
transimpedance preamplifier IC,
in an OSA. The OSA interfaces to
a custom silicon bipolar circuit
that provides post-amplification
and quantization. The postamplifier includes a Signal Detect
circuit that provides TTL
compatible logic-low output in
response to the detection of a
usable input optical signal.
The laser driver IC incorporates
temperature compensation and
feedback from the OSA to
maintain constant output power
and extinction ratio over the
operating temperature range.
Eye Safety Design
The laser driver is designed to be
Class 1 eye safe (CDRH21 CFR(J),
IEC 60825-1) under a single fault
condition.
There are three key elements to
the safety circuitry: a monitor
diode, a window detector circuit,
and direct control of the laser
bias. The window detection circuit
monitors the average optical
power using the photo diode in the
laser OSA. If a fault occurs such
that the dc bias circuit cannot
maintain the preset conditions
within ±20%, TX_FAULT (Pin 10)
will be asserted (high).
Note: Under any single fault, the
laser optical output power will
remain within Class 1 eye safe
limits.
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause catastrophic damage to the device. Limits apply to each parameter
in isolation, all other parameters having values within the recommended operating conditions. It should not be assumed that
limiting values of more than one parameter can be applied to the product at the same time. Exposure to the absolute maximum
ratings for extended periods can adversely affect device reliability.
Parameter
Storage Temperature
Supply Voltage
Data Input Voltage
Transmitter
Differential Input Voltage
Relative Humidity
Symbol
TS
VDDT
VDDR
TX_DAT
±TX_DAT
Min.
-40
-0.5
Typ.
Max.
+85
6.0
Unit
°C
V
Notes
-0.5
VDDT
2000
V
mV p-p
RH
5
95
%
Symbol
TA
TCASE
VDDT
VDDR
ITX + IRX
Min.
0
5.0
Max.
+60
+75
5.25
Unit
°C
°C
V
200
300
mA
2
Typ.
Max.
+30
1.58
Unit
mA
W
Notes
3
4
Recommended Operating Conditions
Parameter
Ambient Operating Temperature
Case Temperature
Supply Voltage
Supply Current
4.75
Typ.
Notes
1
Transceiver Electrical Characteristics
(TA = 0°C to +60°C, VCC = 4.75 V to 5.25 V)
Parameter
Surge Current
Power Dissipation
Symbol
ISURGE
PDISS
Min.
1.00
Notes:
1. See Figure 1 for measurement point.
2. Maximum current is specified at V CC = maximum @ maximum operating temperature and end of life.
3. Hot plug above actual steady state current.
4. Total T X + RX.
11
HFCT-5611
Transmitter Electrical Characteristics
(TA = 0°C to +60°C, VCC = 4.75 V to 5.25 V)
Parameter
Transmitter Differential Input Voltage
Tranmit Fault Load
Transmit Fault Output - Low
Transmit Fault Output - High
Symbol
±TX_DAT
TX_FAULTLoad
TX_FAULTL
TX_FAULTH
TX_DISABLE Assert Time
TX_DISABLE Negate Time
Time to initialize, includes reset of
TX_FAULT
TX_FAULT from fault to assertion
TX_DISABLE time to start reset
t_off
t_on
t_init
Unit
mV p-p
kW
v
v
1
3
0.5
30
Max.
2000
10
0.5
VCC
+0.3
10
1
300
µsec
msec
msec
2
3
4
20
100
µsec
µsec
5
6
Typ.
Max.
2000
0.35
0.35
10
0.5
Unit
mV p-p
ns
ns
kW
V
Notes
V
tA,RX_LOS
VCC
+0.3
100
µs
tD,RX_LOS
100
µs
t_fault
t_reset
Min.
650
4.7
0.0
VCC
-0.5
Typ.
10
Notes
Receiver Electrical Characteristics
(TA = 0°C to +60°C, VCC = 4.75 V to 5.25 V)
Parameter
Receiver Differential Output Voltage
Receiver Output Rise Time
Receiver Output Fall Time
Receiver Loss of Light Load
Receiver Loss of Signal Output Voltage
- Low
Receiver Loss of Signal Output Voltage
- High
Receiver Loss of Signal Assert Time
(off to on)
Receiver Loss of Signal Deassert Time
(on to off)
Symbol
±RX_DAT
trRX_DAT
tfRX_DAT
RX_LOSLoad
RX_LOSL
Min.
370
RX_LOSH
VCC
-0.5
4.7
0.0
Notes:
1. Pull-up resistor on host V CC .
2. Rising edge of TX_DISABLE to fall of output signal below 10% of nominal.
3. Falling edge of TX_DISABLE to rise of output signal above 90% of nominal.
4. From power on or hot plug after VDDT >4.75 V or From negation of TX_DISABLE during reset of TX_FAULT.
5. From occurrence of fault (output safety violation or VDDT <4.5 V).
6. TX_DISABLE HIGH before TX_DISABLE set LOW.
7. 20 - 80% values.
12
7
7
1
HFCT-5611
Transmitter Optical Characteristics
(TA = 0°C to +60°C, VCC = 4.75 V to 5.25 V)
Parameter
Output Optical Power
9/125 µm SMF
62.5/125 µm MMF
50/125 µm MMF
Optical Extinction Ratio
Center Wavelength
Spectral Width - rms
Optical Rise/Fall Time
RIN12
Total Contributed Jitter
Coupled Power Ratio
Max. Pout TX_DISABLE Asserted
Symbol
PO
lC
Min.
Typ.
Max.
Unit
-9.5
-11.5
-11.5
9
1285
-7
-3
-3
-3
1310
1343
2.8
0.26
-116
227
dBm
dBm
dBm
dB
nm
nm rms
ns
dB/Hz
ps p-p
dB
dBm
tr/tf
TJ
CPR
POFF
9
-35
Notes
1, 4 and Figure 2
Receiver Optical Characteristics
(TA = 0°C to +60°C, VCC = 4.75 V to 5.25 V)
Parameter
Input Optical Power
Operating Center Wavelength
Return Loss
Receiver Loss of Signal - TTL Low
Receiver Loss of Signal - TTL High
Stressed Receiver Sensitivity
Stressed Receiver Eye Opening
@TP4
Electrical 3 dB Upper Cutoff Frequency
Symbol
PIN
lC
PRX_LOS A
PRX_LOS D
Min.
-20
1270
12
Typ.
-25
Max.
-3
1355
-28
-20
-31
-14.4
201
1500
Notes:
1. 20 - 80% values.
2. Modulated with 27-1 PRBS pattern. Results are for a BER of IE-12.
3. Tested in accordance with the conformance testing requirements of IEEE802.3z.
4. Laser transmitter pulse response characteristics are specified by an eye diagram (Figure 2).
13
Unit
Notes
dBm avg. 2
nm
dB
dBm avg.
dBm avg.
dBm
3
ps
3
MHz
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semiconductors
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Data subject to change.
Copyright © 2002 Agilent Technologies, Inc.
Obsoletes: 5988-0537EN
July 29, 2002
5988-7407EN
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