AVAGO AFCT-5765NLZ Families of small form factor pluggable (sfp) optical transceiver Datasheet

AFCT-5760xNxZ and AFCT-5765xNxZ
Families of Small Form Factor Pluggable (SFP) Optical Transceivers
for Single-Mode OC3/STM-1 with Optional DMI
Part of the Avago Technologies METRAK Family
Data Sheet
Description
The AFCT-576xZ family of SFP optical transceivers for OC3
offers the customer a range of design options, including
optional DMI (further described later), extended or industrial temperature ranges, and standard push-button or or
bail delatch. The AFCT-5765Z family targets applications
requiring DMI features, and the AFCT-5760Z family is
streamlined for those applications where DMI features
are not needed. Throughout this document, AFCT-576xZ
will refer collectively to the entire product family encompassing this range of product features.
Part Number Options
The AFCT-576xZ family consists of the following products:
With DMI
Part Number
Temperature
Design
AFCT-5765NLZ
Extended*
Standard
AFCT-5765NPZ
Extended*
Bail
AFCT-5765ANLZ
Industrial*
Standard
AFCT-5765ANPZ
Industrial*
Bail
Without DMI
Part Number
AFCT-5760NLZ
AFCT-5760NPZ
AFCT-5760ANLZ
AFCT-5760ANPZ
Temperature
Extended*
Extended*
Industrial*
Industrial*
Design
Standard
Bail
Standard
Bail
* Extended Temperature Range is -10 to 85 degrees C
Industrial Temperature Range is -40 to 85 degrees C
Related Products
 AFCT-5755Z family of OC12 SFP transceivers with
DMI
 AFCT-5745L/P family of OC48 SFP transceivers with
DMI
Features
 ROHS compliant
 Optional Digital Diagnostic Monitoring available
- AFCT-5760Z family: without DMI
- AFCT-5765Z family: with DMI
 Per SFF-8472, diagnostic features on AFCT-5765Z
family enable Diagnostic Monitoring Interface for
optical transceivers with real-time monitoring of:
- Transmitted optical power
- Received optical power
- Laser bias current
- Temperature
- Supply voltage
 Compliant with SFF-8074i SFP transceiver specification
 Compliant with ITU-T G957 STM-1 L1.1 (40km) Optical Interface
 Compliant with Telcordia GR253 OC3 LR-1 (40km)
Optical Interface
 Class 1 CDRH/IEC 825 eye safety compliant
 Operating case temperature range
–10 °C to +85 °C (Extended)
–40 °C to +85 °C (Industrial)
 Multitrate operation from 125 Mb/s to 155 Mb/s
 LC duplex fiber connector
 Manufactured in an ISO 9001 compliant facility
Applications
 ATM switches and routers
 SONET/SDH switch infrastructure
 Broadband aggregation applications
 Metro edge switching
 Metro and access multi-service platforms
 Suitable for Fast Ethernet applications
General Features
SFP MSA Compliance
The AFCT-576xZ family of SFP optical transceivers are high
performance, cost effective modules for serial optical data
communications applications ranging from 125-155 Mbps.
They are designed to provide SONET/SDH compliant connections for 155 Mbps at short and intermediate reach
links. This includes specifications for the signal coding,
optical fiber and connector types, optical and electrical
transmitter characteristics, optical and electrical receiver
characteristics, jitter characteristics, and compliance testing methodology for the aforementioned. These transceivers are qualified in accordance with GR-468-CORE.
The product package is compliant with the SFP MSA with
the LC connector option. The SFP MSA includes specifications for mechanical packaging and performance as well as
dc, ac and control signal timing and performance.
The transmitter section of the transceivers incorporate a
1300nm Fabry Perot (FP) laser. For each device the receiver
section uses an MOVPE grown planar PIN photodetector
for low dark current and excellent responsivity. A positiveECL logic interface simplifies interface to external circuitry.
The receiver section contains an InGaAs/InP photo detector and a preamplifier mounted in an optical subassembly.
This optical subassembly is coupled to a postamplifier/decision circuit on a circuit board.
The power supply is 3.3 V dc.
The High Speed I/O (HSIO) signal interface is a Low Voltage
Differential type. It is ac coupled and terminated internally
to the module. The internal termination is a 100 Ohm differential load.
Installation
The AFCT-576xZ can be installed in any SFF-8074i compliant Small Form Pluggable (SFP) port regardless of host
equipment operating status. The module is hot-pluggable, allowing it to be installed while the host system
is operating and online. Upon insertion, the transceiver
housing makes initial contact with the host board SFP
cage, mitigating potential damage due to electrostatic
discharge (ESD).
The AFCT-576xZ family of optical transceivers adds digital
diagnostic monitoring to standard SFP functionality, enabling fault isolation, components monitoring and failure
prediction capabilities.
Optical Interface
Light from Fiber
Electrical Interface
Receiver
Photo-Detector
Amplification
&
Quantization
RD+ (Receive Data)
RD- (Receive Data)
Rx Loss Of Signal
MOD-DEF2 (SDA)
text
Controller & Memory
MOD-DEF1 (SCL)
MOD-DEF0
Transmitter
Light to Fiber
Laser
TX_DISABLE
Laser Driver &
Safety Circuit
TD+ (Transmit Data)
TD- (Transmit Data)
TX_FAULT
Figure 1. Transceiver Functional Diagram
2
Transmitter Section
TX_FAULT
The transmitter section includes a 1310 nm Fabry-Perot
laser and a transmitter driver circuit. The driver circuit
maintains a constant optical power level provided that
the data pattern is valid for NRZ code. Connection to the
transmitter is provided via a LC optical connector.
A laser fault or a low VCC condition will activate the transmitter fault signal, TX_FAULT, and disable the laser. This
signal is an open collector output (pull-up required on
the host board); A low signal indicates normal laser operation and a high signal indicates a fault. The TX_FAULT
will be latched high when a laser fault occurs and is
cleared by toggling the TX_DISABLE input or power
cycling the transceiver. The TX_FAULT is not latched for
Low VCC. The transmitter fault condition can also be
monitored via the two-wire serial interface (address A2,
byte 110, bit 2). By default, TX_FAULT is set to trigger on
hardware faults only.
The transmitter has full IEC 825 and CDRH Class 1 eye
safety.
TX_DISABLE
The transmitter output can be disabled by asserting pin
3, TX_DISABLE. A high signal asserts this function while
a low signal allows normal laser operation. The transmitter output can also be disabled and monitored via the
2-wire serial interface. In the event of a transceiver fault,
such as the activation of the eye safety circuit, toggling
of the TX_DISABLE will reset the transmitter, as depicted
in Figure 2.
1 µH
3.3 V
10 µF
0.1 µF
1 µH
3.3 V
VCC,T
SFP MODULE
0.1 µF
4.7 K to 10 KΩ
4.7 K to 10 KΩ
Tx_DISABLE
Tx_FAULT
Tx_FAULT
VREFR
VREFR
SO+
50 Ω
TD+
SO–
50 Ω
TD–
TX GND
TX[0:9]
TBC
EWRAP
PROTOCOL
IC
RBC
Rx_RATE
TBC
EWRAP
10 µF
RBC
Rx_RATE
REFCLK
SI+
100 Ω
SI–
RD+
50 Ω
RD–
Rx_LOS
RX GND
MOD_DEF2
MOD_DEF1
MOD_DEF0
GPIO(X)
GPIO(X)
GP14
4.7 K to
10 KΩ
4.7 K to
10 KΩ
4.7 K to
10 KΩ
3.3 V
Figure 2. Typical Application Configuration
3
0.01 µF
VCC,R
50 Ω
0.1
µF
50 Ω
Rx_LOS
REFCLK
LASER DRIVER
& SAFETY
CIRCUITRY
100 Ω
VCC,R
4.7 K to 10 KΩ
RX[0:9]
0.01 µF
0.01 µF
0.01 µF
AMPLIFICATION
&
QUANTIZATION
50 Ω
VCC,R
EEPROM
Receiver Section
The receiver section for the AFCT-576xZ contains an
InGaAs/InP photo detector and a preamplifier mounted
in an optical subassembly. This optical subassembly is
coupled to a post amplifier/decision circuit on a circuit
board. The design of the optical subassembly provides
better than 12 dB Optical Return Loss (ORL).
Connection to the receiver is provided via a LC optical
connector.
RX_LOS
The receiver section contains a loss of signal (RX_LOS)
circuit to indicate when the optical input signal power
is insufficient for SONET/SDH compliance. A high signal
indicates loss of modulated signal, indicating link failure
such as a broken fiber or a failed transmitter. RX_LOS can
be also be monitored via the two-wire serial (address A2,
byte 110, bit 1).
Functional Data I/O
Avago’s AFCT-576xZ transceiver is designed to accept
industry standard differential signals. The transceiver provides an AC-coupled, internally terminated data interface.
Bias resistors and coupling capacitors have been included
within the module to reduce the number of components
required on the customer’s board. Figure 2 illustrates the
recommended interface circuit.
Digital Diagnostic Interface and Serial Identification
As an enhancement to the conventional SFP interface
defined in SFF-8074i, the AFCT-5765Z is also compliant
to SFF-8472 (the digital diagnostic interface for SFP). This
enhancement adds digital diagnostic monitoring to standard SFP functionality, enabling failure prediction, fault
isolation, and component monitoring capabilities.
0.1 µF
1 µH
VCCR
SFP MODULE
3.3 V
HOST BOARD
Figure 3. MSA required power supply filter
4
Contents of the MSA-compliant serial ID memory are
shown in Tables 3 to 7. The SFF-8074i and SFF-8472
specifications are available from the SFF Committee at
http://www.sffcommittee.org.
The I2C accessible memory page address 0xB0 is used
internally by SFP for the test and diagnostic purposes
and it is reserved.
Predictive Failure Identification
The diagnostic information allows the host system to
identify potential link problems. Once identified, a failover technique can be used to isolate and replace suspect devices before system uptime is impacted.
The real-time diagnostic parameters can be monitored
to alert the system when operating limits are exceeded
and compliance cannot be ensured.
Fault Isolation
The diagnostic information can allow the host to pinpoint the location of a link problem and accelerate system servicing and minimize downtime.
Component Monitoring
As part of the host system monitoring, the real time diagnostic information can be combined with system level
monitoring to ensure system reliability.
Application Support
1 µH
VCCT
10 µF
The digital diagnostic interface also adds the ability to
disable the transmitter (TX_DISABLE), monitor for Transmitter Faults (TX_FAULT) and monitor for Receiver Loss
of Signal (RX_LOS).
Compliance Prediction
The AFCT-576xZ family complies with the SFF-8074i specification, which defines the module’s serial identification
protocol to use the 2-wire serial CMOS EEPROM protocol
of the ATMEL AT24C01A or similar. Standard SFP EEPROM
bytes 0-255 are addressed per SFF-8074i at memory address 0xA0 (A0h).
0.1 µF
Using the 2-wire serial interface, the AFCT-5765Z provides real time access to transceiver internal supply voltage and temperature, transmitter output power, laser
bias current and receiver average input power, allowing
a host to predict system compliance issues. These five
parameters are internally calibrated, per the MSA. New
digital diagnostic information is accessed per SFF-8472
using EEPROM bytes 0-255 at memory address 0xA2
(A2h).
0.1 µF
10 µF
An Evaluation Kit and Reference Designs are available to
assist in evaluation of the AFCT-576xZ SFPs. Please contact your local Field Sales representative for availability
and ordering details.
Operating Temperature
The AFCT-576xZ family is available in either Extended
(-10 to +85°C) or Industrial (-40 to +85°C) temperature
ranges.
Power Supply Noise
The AFCT-576xZ can withstand an injection of PSN on the
VCC lines of 100 mV ac without a degradation in eye mask
margin to 10% on the transmitter and a 1 dB sensitivity
penalty on the receiver. This occurs when the product is
used in conjunction with the MSA recommended power
supply filter shown in Figure 3.
Regulatory Compliance
The transceiver regulatory compliance is provided in Table
1 as a figure of merit to assist the designer. The overall
equipment design will determine the certification level.
Table 1. Regulatory Compliance
Feature
Test Method
Performance
Electrostatic Discharge (ESD)
to the Electrical Pins
MIL-STD-883C Method 3015.4
JEDEC/EIA JESD22-A114-A
Class 2 (2000 Volts)
Electrostatic Discharge (ESD)
to the Duplex LC Receptacle
Bellcore GR1089-CORE
25 kV Air Discharge
10 Zaps at 8 kV (contact discharge) on the electrical faceplate on panel.
Electromagnetic Interference
(EMI)
FCC Class B
Applications with high SFP port counts are expected to be compliant; however, margins are dependent on customer board and chassis design.
Immunity
Variation of IEC 61000-4-3
No measurable effect from a 10 V/m field swept
from 80 to 1000 MHz applied to the transceiver
without a chassis enclosure.
Eye Safety
US FDA CDRH AEL Class 1
EN (IEC) 60825-1, 2,
EN60950 Class 1
CDRH Accession Number: 9521220-137T
UV Certificate Number: 933/21205741/040
Component Recognition
Underwriter’s Laboratories and
Canadian Standards Association Joint
Component Recognition for Information Technology Equipment Including
Electrical Business Equipment
UL file # E173874
ROHS Compliance
5
Reference to EU RoHS Directive 2002/95/EC
Electrostatic Discharge (ESD)
Caution
There are two conditions in which immunity to ESD damage is important:
The AFCT-576xZ contains no user-serviceable parts. Tampering with or modifying the performance of the AFCT576xZ will result in voided product warranty. It may also
result in improper operation of the transceiver circuitry,
and possible over-stress of the laser source. Device degradation or product failure may result. Connection of the
AFCT-576xZ to a non-approved optical source, operating
above the recommended absolute maximum conditions
may be considered an act of modifying or manufacturing
a laser product. The person(s) performing such an act
is required by law to re-certify and re-identify the laser
product under the provisions of U.S. 21 CF.
The first condition is static discharge to the transceiver
during handling such as when the transceiver is inserted
into the transceiver port. To protect the transceiver, it is
important to use normal ESD handling precautions including the use of grounded wrist straps, work benches, and
floor mats in ESD controlled areas. The ESD sensitivity of
the AFCT-576xZ is compatible with typical industry production environments.
The second condition is static discharge to the exterior
of the host equipment chassis after installation. To the
extent that the duplex LC optical interface is exposed
to the outside of the host equipment chassis, it may
be subject to system-level ESD requirements. The ESD
performance of the AFCT-576xZ exceeds typical industry
standards. Table 1 documents ESD immunity to both of
these conditions.
Electromagnetic Interference (EMI)
Most equipment designs using the AFCT-576xZ SFPs are
subject to the requirements of the FCC in the United
States, CENELEC EN55022 (CISPR 22) in Europe and VCCI
in Japan. The metal housing and shielded design of the
transceiver minimize EMI and provide excellent EMI
performance.
EMI Immunity
The AFCT-576xZ transceivers have a shielded design to
provide excellent immunity to radio frequency electromagnetic fields which may be present in some operating
environments.
Eye Safety
The AFCT-576xZ transceivers provide Class 1 eye safety
by design. Avago Technologies has tested the transceiver
design for regulatory compliance, under normal operating conditions and under a single fault condition. See
Table 1.
Flammability
The AFCT-576xZ family of SFPs is compliant to UL 94V-0.
Customer Manufacturing Processes
This module is pluggable and is not designed for aqueous wash, IR reflow, or wave soldering processes.
6
Handling Precautions
The AFCT-576xZ can be damaged by current surges or
overvoltage. Power supply transient precautions should
be taken, and normal handling precautions for electrostatic sensitive devices should be taken.
Optical Power Budget
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.
Process Plug
This transceiver is supplied with a process plug for
protection of the optical port within the LC connector
receptacle. This process plug prevents contamination
during handling, shipping and storage. It is made of a
high-temperature, molded sealing material that can
withstand +85 °C.
LC SFP Cleaning Recommendations
In the event of contamination of the optical ports, the
recommended cleaning process is the use of forced nitrogen. If contamination is thought to have remained, the
optical ports can be cleaned using a NTT international
Cletop stick type (diam. 1.25 mm) and HFE7100 cleaning
fluid.
Table 2. Pin description
Pin
Name
Function/Description
1
VeeT
Transmitter Ground
MSA Notes
2
TX Fault
Transmitter Fault Indication
Note 1
3
TX Disable
Transmitter Disable - Module disables on high or open
Note 2
4
MOD-DEF2
Module Definition 2 - Two wire serial ID interface
Note 3
5
MOD-DEF1
Module Definition 1 - Two wire serial ID interface
Note 3
6
MOD-DEF0
Module Definition 0 - Grounded in module
Note 3
7
Rate Select
Not Connected
8
LOS
Loss of Signal
9
VeeR
Receiver Ground
10
VeeR
Receiver Ground
11
VeeR
Receiver Ground
12
RD-
Inverse Received Data Out
Note 5
13
RD+
Received Data Out
Note 5
14
VeeR
Receiver Ground
15
VccR
Receiver Power - 3.3 V ±5%
Note 6
16
VccT
Transmitter Power - 3.3 V ±5%
Note 6
17
VeeT
Transmitter Ground
18
TD+
Transmitter Data In
Note 7
19
TD-
Inverse Transmitter Data In
Note 7
20
VeeT
Transmitter Ground
Note 4
Notes:
1. TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10K resistor on the host board. Pull up voltage between
2.0 V and VccT, R+0.3 V. When high, output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output will
be pulled to < 0.8 V. By default, TX Fault is set to trigger only on hardware faults.
2. TX Disable input is used to shut down the laser output per the state table below with an external 4.7 - 10 K pull-up resistor.
Low (0 - 0.8 V): Transmitter on
Between (0.8 V and 2.0 V): Undefined
High (2.0 - 3.465 V): Transmitter Disabled
Open: Transmitter Disabled
3. MOD-DEF 0,1,2. These are the module definition pins. They should be pulled up with a 4.7 - 10 K resistor on the host board to a supply less
than VccT +0.3 V or VccR+0.3 V.
MOD-DEF 0 is grounded by the module to indicate that the module is present
MOD-DEF 1 is clock line of two wire serial interface for optional serial ID
MOD-DEF 2 is data line of two wire serial interface for optional serial ID
4. LOS (Loss of Signal) is an open collector/drain output which should be pulled up externally with a 4.7K - 10 K resistor on the host board to a
supply < VccT,R+0.3 V. When high, this output indicates the received optical power is below the worst case receiver sensitivity (as defined by
the standard in use). Low indicates normal operation. In the low state, the output will be pulled to < 0.8 V.
5. RD-/+: These are the differential receiver outputs. They are ac coupled 100 differential lines which should be terminated with 100 differential
at the user SERDES. The ac coupling is done inside the module and is thus not required on the host board. The voltage swing on these lines will
be between 250 and 2000 mV differential (160 - 1000 mV single ended) when properly terminated.
6. VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.135 - 3.465 V at the SFP connector pin. The maximum supply current is 250 mA and the associated inrush current will be no more than 30 mA above steady state after 500 nanoseconds.
7. TD-/+: These are the differential transmitter inputs. They are ac coupled differential lines with 100 differential termination inside the module.
The ac coupling is done inside the module and is thus not required on the host board. The inputs will accept differential swings of 500 - 2400
mV (250 - 1200 mV single ended), though it is recommended that values between 500 and 1200 mV differential (250 - 600 mV single ended) be
used for best EMI performance.
7
Table 3. EEPROM Serial ID Memory Contents - Address A0h
Byte # Dat
Decimal Hex
Notes
Byte #
Dat
Decimal Hex
0
03
SFP physical device
27
20
54
20
1
04
SFP function defined
by serial ID only
28
20
55
20
2
07
LC optical connector
3
00
4
10
5
04
6
7
Notes
Byte # Dat
Decimal Hex
Notes
29
20
56
30
30
20
57
30
SONET Reach Specifier
31
20
58
31
SONET Compliance
Code
32
20
59
30
00
33
20
60
Table 4
00
34
20
61
Table 4
8
00
35
20
62
00
9
00
36
00
63
10
00
37
00
Hex Byte ofVendor OUI1
64
00
11
05
SONET Scrambled
38
17
Hex Byte of
Vendor OUI1
65
1A
Hardware SFP Tx_Disable,
Tx_Fault & Rx_LOS
12
02
155 Mbit/sec nominal 39
bit rate
6A
Hex Byte of
Vendor OUI1
66
00
Upper Bit Rate Margin
13
00
40
41
A
67
00
Lower Bit Rate Margin
14
28
Link length 9 μm in
km
41
46
F
68-83
Vendor Specific Serial
Number ASCII characters4
15
FF
Link length 9 μm in m 42
43
C
84-91
Vendor Date Code ASCII
characters5
16
00
43
54
T
92
Table 4
17
00
44
2D
-
93
Table 4
18
00
45
35
5
94
Table 4
19
00
46
37
7
95
20
41
A
47
36
6
96-127
00
Vendor specific EEPROM
21
56
V
48
Table 4
128255
00
Reserved
22
41
A
49
Table 4
23
47
G
50
Table 4
24
4F
O
51
Table 4
25
20
52
Table 4
26
20
53
20
Checksum for Bytes 0-623
Checksum for Bytes 64-943
Notes:
1. The IEEE Organizationally Unique Identifier (OUI) assigned to Avago is 00-17-6A (3 bytes of hex).
2. Laser wavelength is represented in 16 unsigned bits.
3. Addresses 63 and 95 are checksums calculated (per SFF-8472 and SFF-8074) and stored prior to product shipment.
4. Addresses 68-83 specify the ASCII serial number and will vary on a per unit basis.
5. Addresses 84-91 specify the ASCII date code and will vary on a per date code basis.
8
Table 4. Individual Identifiers
AFCT-5760NLZ
Byte #
Notes
Hex
AFCT-5760ANLZ
Notes
Hex
AFCT-5760ANPZ
Notes
Hex
Notes
48
30
0
30
0
30
0
30
0
49
4E
N
4E
N
41
A
41
A
50
4C
L
50
P
4E
N
4E
N
51
5A
Z
5A
Z
4C
L
50
P
52
20
5A
Z
5A
Z
60
05
05
1310nm
05
1310nm
61
1E
1E
1E
1E
92
00
00
00
00
93
00
00
00
00
94
00
00
00
00
AFCT-5765NLZ
AFCT-5765NPZ
Byte #
9
Hex
AFCT-5760NPZ
Hex
20
1310nm
Notes
05
Hex
1310nm
AFCT-5765ANLZ
Notes
Hex
AFCT-5765ANPZ
Notes
Hex
Notes
48
35
5
35
5
35
5
35
5
49
4E
N
4E
N
41
A
41
A
50
4C
L
50
P
4E
N
4E
N
51
5A
Z
5A
Z
52
20
60
05
20
1310nm
05
1310nm
4C
L
50
P
5A
Z
5A
Z
05
1310nm
05
1310nm
61
1E
1E
1E
1E
92
68
68
68
68
93
F0
F0
F0
F0
94
01
01
01
01
Table 5. EEPROM Serial ID Memory Contents - Address A2h (AFCT-5765Z family only)
Byte
#Decimal Notes
Byte
#Decimal Notes
Byte
#Decimal
Notes
0
Temp H Alarm MSB1
26
Tx Pwr L Alarm MSB4
104
Real Time Rx PAV MSB5
1
Temp H Alarm LSB1
27
Tx Pwr L Alarm LSB4
105
Real Time Rx PAV LSB5
2
Temp L Alarm MSB1
28
Tx Pwr H Warning MSB4
106
Reserved
3
Temp L Alarm LSB1
29
Tx Pwr H Warning LSB4
107
Reserved
4
Temp H Warning MSB1
30
Tx Pwr L Warning MSB4
108
Reserved
5
Temp H Warning LSB1
31
Tx Pwr L Warning LSB4
109
Reserved
6
Temp L Warning MSB1
32
Rx Pwr H Alarm MSB5
110
Status/Control - see Table 6
7
Temp L Warning LSB1
33
Rx Pwr H Alarm LSB5
111
Reserved
8
VCC H Alarm MSB2
34
Rx Pwr L Alarm MSB5
112
Flag Bits - see Table 7
9
VCC H Alarm LSB2
35
Rx Pwr L Alarm LSB5
113
Flag Bit - see Table 7
10
VCC L Alarm MSB2
36
Rx Pwr H Warning MSB5
114
Reserved
11
VCC L Alarm LSB2
37
Rx Pwr H Warning LSB5
115
Reserved
12
VCC H Warning MSB2
38
Rx Pwr L Warning MSB5
116
Flag Bits - see Table 7
13
VCC H Warning LSB2
39
Rx Pwr L Warning LSB5
117
Flag Bits - see Table 7
14
VCC L Warning MSB2
40-55
Reserved
118
Reserved
15
VCC L Warning LSB2
56-94
External Calibration Constants6
119
Reserved
16
Tx Bias H Alarm MSB3
95
Checksum for Bytes 0-947
120-122
Reserved
17
Tx Bias H Alarm LSB3
96
Real Time Temperature MSB1
123
18
Tx Bias L Alarm MSB3
97
Real Time Temperature LSB1
124
19
Tx Bias L Alarm LSB3
98
Real Time Vcc MSB2
125
20
Tx Bias H Warning MSB3
99
Real Time Vcc LSB2
126
21
Tx Bias H Warning LSB3
100
Real Time Tx Bias MSB3
127
Reserved8
22
Tx Bias L Warning MSB3
101
Real Time Tx Bias LSB3
128-247
Customer Writable9
23
Tx Bias L Warning LSB3
102
Real Time Tx Power MSB4
248-254
Vendor Specific
24
Tx Pwr H Alarm MSB4
103
Real Time Tx Power LSB4
255
25
Tx Pwr H Alarm LSB4
Notes:
1. Temperature (Temp) is decoded as a 16 bit signed twos compliment integer in increments of 1/256 °C.
2. Supply voltage (VCC) is decoded as a 16 bit unsigned integer in increments of 100 μV.
3. Laser bias current (Tx Bias) is decoded as a 16 bit unsigned integer in increments of 2 μA.
4. Transmitted average optical power (Tx Pwr) is decoded as a 16 bit unsigned integer in increments of 0.1 μW.
5. Received average optical power (Rx Pwr) is decoded as a 16 bit unsigned integer in increments of 0.1 μW.
6. Bytes 55-94 are not intended from use with AFCT-5765xxxx, but have been set to default values per SFF-8472.
7. Bytes 95 is a checksum calculated (per SFF-8472) and stored prior to product shipment.
8. Byte 127 accepts a write but performs no action (reserved legacy byte).
9. Bytes 128-247 are write enabled (customer writable).
10. Byte 255 bits 2 and 3 control laser margining (per Table 7) when an enabling password is entered into bytes 123-126.
10
Table 6. EEPROM Serial ID Memory Contents - Address A2h, Byte 110 (AFCT-5765Z family only)
Bit #
Status/Control Name
Description
7
Tx Disable State
Digital state of SFP Tx Disable Input Pin (1 = Tx_ Disable asserted)
6
Soft Tx Disable
Read/write bit for changing digital state of SFP Tx_Disable function 1
5
Reserved
4
Rx Rate Select State
3
Reserved
2
Tx Fault State
Digital state of the SFP Tx Fault Output Pin (1 = Tx Fault asserted) 3
1
Rx LOS State
Digital state of the SFP LOS Output Pin (1 = LOS asserted)
0
Data Ready (Bar)
Indicates transceiver is powered and real time sense data is ready (0 = Ready)
Digital state of SFP Rate Select Input Pin (1 = full bandwidth of 155 Mbit) 2
Notes:
1. Bit 6 is logic OR’d with the SFP Tx_Disable input pin 3 ... either asserted will disable the SFP transmitter.
2. AFCT-5765Z does not respond to state changes on Rate Select Input Pin. It is internally hardwired to full bandwidth.
3. By default, TX Fault is set to trigger only on hardware faults.
Table 7. EEPROM Serial ID Memory Contents - Address A2h, Bytes 112, 113, 116, 117 (AFCT-5765Z family only)
Byte
Bit #
Flag Bit Name
Description
7
Temp High Alarm
Set when transceiver nternal temperature exceeds high alarm threshold.
6
Temp Low Alarm
Set when transceiver internal temperature exceeds alarm threshold.
5
VCC High Alarm
Set when transceiver internal supply voltage exceeds high alarm threshold.
4
VCC Low Alarm
Set when transceiver internal supply voltage exceeds low alarm threshold.
3
Tx Bias High Alarm
Set when transceiver laser bias current exceeds high alarm threshold.
2
Tx Bias Low Alarm
Set when transceiver laser bias current exceeds low alarm threshold.
1
Tx Power High Alarm
Set when transmitted average optical power exceeds high alarm threshold.
0
Tx Power Low Alarm
Set when transmitted average optical power exceeds low alarm threshold.
7
Rx Power High Alarm
Set when received P_Avg optical power exceeds high alarm threshold.
6
Rx Power Low Alarm
Set when received P_Avg optical power exceeds low alarm threshold.
0-5
Reserved
7
Temp High Warning
Set when transceiver internal temperature exceeds high warning threshold.
6
Temp Low Warning
Set when transceiver internal temperature exceeds low warning threshold.
5
VCC High Warning
Set when transceiver internal supply voltage exceeds high warning threshold.
4
VCC Low Warning
Set when transceiver internal supply voltage exceeds low warning threshold.
3
Tx Bias High Warning
Set when transceiver laser bias current exceeds high warning threshold.
2
Tx Bias Low Warning
Set when transceiver laser bias current exceeds low warning threshold.
1
Tx Power High Warning
Set when transmitted average optical power exceeds high warning threshold.
0
Tx Power Low Warning
Set when transmitted average optical power exceeds low warning threshold.
7
Rx Power High Warning
Set when received P_Avg optical power exceeds high warning threshold.
9
Rx Power Low Warning
Set when received P_Avg optical power exceeds low warning threshold.
0-5
Reserved
112
113
116
117
11
Optical Parameters
Absolute Maximum Ratings
Absolute maximum ratings are those values beyond which functional performance is not intended, device reliability is not implied, and damage to the device may occur.
Parameter
Symbol
Minimum
Maximum
Unit
Storage Temperature (non-operating)
TS
-40
+85
°C
Notes
Relative Humidity
RH
0
85
%
Supply Voltage
VCC
-0.5
3.63
V
Input Voltage on any Pin
VI
-0.5
VCC
V
Receiver Optical Input
PINABS
0
dBm
Recommended Multirate Operating Conditions
Typical operating conditions are those values for which functional performance and device reliability is implied.
Parameter
Symbol
Minimum
Case Operating Temperature
AFCT-576xNLZ/NPZ
AFCT-576xANLZ/ANPZ
TC
TC
-10
-40
Supply Voltage
VCC
3.1
Typical
3.3
Maximum
Unit
+85
+85
°C
°C
3.5
V
Notes
Transceiver Electrical Characteristics for multirate operations at Fast Ethernet (125 Mbit/s) and OC-3 (155 Mbit/s) *6
Parameter
Symbol
Module supply current
ICCT
Power Dissipation
PDISS
Minimum
Typical
Maximum
Unit
Notes
250
mA
1
875
mW
AC Electrical Characteristics
Power Supply Noise Rejection
PSNR
100
In-rush Current
mV
30
mA
2
DC Electrical Characteristics
Signal Outputs:
Transmit Fault (TX_FAULT)
Loss of Signal (LOS)
Signal Inputs:
Transmitter Disable (TX_DISABLE)
MOD-DEF1, 2
VOH
2.0
3.5
V
VOL
0
0.8
V
VIH
2.0
3.5
V
3
VIL
0
0.8
V
6
Data Input:
Transmitter Single Ended Input Voltage (TD±)
VI
250
1200
mV
4
Data Ouput:
Receiver Single Ended Output Voltage (RD±)
VO
250
1000
mV
5
Notes:
1. MSA gives max current at 300 mA.
2. MSA filter is required on host board 10 Hz to 2 MHz.
3. LVTTL, External 4.7-10 K pull up resistor required on host board to voltage less than Vcc + 0.3 V.
4. Internally ac coupled and terminated (100  differential).
5. Internally ac coupled and load termination located at the user SERDES.
6. Minimum input to MOD-DEF1,2 is 0.7*VCC
12
Transmitter Optical Characteristics for multirate operations at Fast Ethernet (125 Mbit/s) and OC-3 (155 Mbit/s)
Parameter
Symbol
Minimum
Maximum
Unit
Notes
Optical Output Power
POUT
-5
Typical*
0
dBm
1
Center Wavelength
C
1270
1360
nm
Spectral Width - RMS

3
nm
2
Optical Rise Time
tr
2.5
ns
3
Optical Fall Time
tf
2.5
ns
3
Tx disable OFF power
POFF
-45
dBm
Extinction Ratio
Er
10
dB
Eye Mask Margin
EMM
30
%
4
Jitter Generation
pk to pk
70
mUI
5
RMS
7
mUI
5
*Typicals indicated expected values for room temperature measurements +25 °C
Notes:
1. The output power is coupled into a 1 m single mode fiber. Minimum output optical level is at end of life
2. The relationship between FWHM and RMS values for spectral width can derived from the Gaussian shaped spectrum which results in
RMS=FWHM/2.35
3. These are unfiltered 20-80% values.
4. 30% margin to eye mask in Telcordia GR-253-CORE and ITU-T G.957
5. Jitter measurements taken with Avago OMNIBER 718 in accordance with GR253
Receiver Optical Characteristics for multirate operations at Fast Ethernet (125 Mbit/s) and OC-3 (155 Mbit/s)
Parameter
Symbol
Minimum
Receiver Sensitivity
PINMIN
Receiver Overload
PINMAX
0
Input Operating Wavelength

1261
LOS Deassert
PLOSD
LOS Assert
PLOSA
-45
LOS Hysteresis
PH
0.5
Typical
Maximum
Unit
Notes
-34
dBm
1
dBm
1360
nm
-34.5
dBm
dBm
4
dB
Notes:
1. The receiver is guaranteed to provide output data with a Bit Error Rate better than or equal to 1 x 10-10 measured with TX powered and carrying
data.
13
Transceiver Digital Diagnostic Monitor (Real Time Sense) Characteristics (AFCT-5765Z family only)
Parameter
Symbol
Min.
Transceiver Internal Temperature Accuracy
TINT
Transceiver Internal Supply Voltage Accuracy
Typ.
Max.
Unit
Reference
-3.0
+3.0
°C
1
VINT
-3.0
+3.0
%
2
Transmitter Laser dc Bias Current Accuracy
IINT
-10
+10
%
3
Transmitted Average Optical Output Power Accuracy
PT
-3.0
+3.0
dB
Received Average Optical Input Power Accuracy
PR
-3.0
+3.0
dB
Notes:
1. Temperature was measured internal to the transceiver. Valid from = -10 °C to +85 °C or from -40°C to +85°C.
For calibration to an external temperature, please contact Avago Technologies.
2. Reference voltage is 3.3 V.
3. Valid from 0 to 50 mA, avg.
Transceiver Timing Characteristics
Parameter
Symbol
Hardware TX_DISABLE Assert Time
Minimum
Maximum
Unit
Notes
t_off
10
ms
Note 1
Hardware TX_DISABLE Negate Time
t_on
1
ms
Note 2
Time to initialize, including reset of TX_FAULT
t_init
300
ms
Note 3
Hardware TX_FAULT Assert Time
t_fault
100
ms
Note 4
Hardware TX_DISABLE to Reset
t_reset
ms
Note 5
Hardware RX_LOS Assert Time
t_loss_on
100
ms
Note 6
Hardware RX_LOS De-Assert Time
t_loss_off
100
ms
Note 7
Software TX_DISABLE Assert Time
t_off_soft
100
ms
Note 8
Software TX_DISABLE Negate Time
t_on_soft
100
ms
Note 9
Software Tx_FAULT Assert Time
t_fault_soft
100
ms
Note 10
Software Rx_LOS Assert Time
t_loss_on_soft
100
ms
Note 11
Software Rx_LOS De-Assert Time
t_loss_off_soft
100
ms
Note 12
Analog parameter data ready
t_data
1000
ms
Note 13
Serial bus hardware ready
t_serial
300
ms
Note 14
Write Cycle Time
t_write
10
ms
Note 15
Serial ID Clock Rate
f_serial_clock
400
kHz
10
Notes:
1. Time from rising edge of TX_DISABLE to when the optical output falls below 10% of nominal.
2. Time from falling edge of TX_DISABLE to when the modulated optical output rises above 90% of nominal.
3. Time from power on or falling edge of Tx_Disable to when the modulated optical output rises above 90% of nominal.
4. From power on or negation of TX_FAULT using TX_DISABLE.
5. Time TX_DISABLE must be held high to reset the laser fault shutdown circuitry.
6. Time from loss of optical signal to Rx_LOS Assertion.
7. Time from valid optical signal to Rx_LOS De-Assertion.
8. Time from two-wire interface assertion of TX_DISABLE (A2h, byte 110, bit 6) to when the optical output falls below 10% of nominal. Measured
from falling clock edge after stop bit of write transaction.
9. Time from two-wire interface de-assertion of TX_DISABLE (A2h, byte 110, bit 6) to when the modulated optical output rises above 90% of
nominal.
10. Time from fault to two-wire interface TX_FAULT (A2h, byte 110, bit 2) asserted.
11. Time for two-wire interface assertion of Rx_LOS (A2h, byte 110, bit 1) from loss of optical signal.
12. Time for two-wire interface de-assertion of Rx_LOS (A2h, byte 110, bit 1) from presence of valid optical signal.
13. From power on to data ready bit asserted (A2h, byte 110, bit 0). Data ready indicates analog monitoring circuitry is functional.
14. Time from power on until module is ready for data transmission over the serial bus (reads or writes over A0h and A2h).
15. Time from stop bit to completion of a 1-8 byte write command.
14
VCC > 3.15 V
VCC > 3.15 V
Tx_FAULT
Tx_FAULT
Tx_DISABLE
Tx_DISABLE
TRANSMITTED SIGNAL
TRANSMITTED SIGNAL
t_init
t_init
t-init: TX DISABLE NEGATED
t-init: TX DISABLE ASSERTED
VCC > 3.15 V
Tx_FAULT
Tx_FAULT
Tx_DISABLE
Tx_DISABLE
TRANSMITTED SIGNAL
TRANSMITTED SIGNAL
t_off
t_on
t_init
INSERTION
t-init: TX DISABLE NEGATED, MODULE HOT PLUGGED
t-off & t-on: TX DISABLE ASSERTED THEN NEGATED
OCCURANCE OF FAULT
OCCURANCE OF FAULT
Tx_FAULT
Tx_FAULT
Tx_DISABLE
Tx_DISABLE
TRANSMITTED SIGNAL
TRANSMITTED SIGNAL
t_reset
t_fault
* CANNOT READ INPUT...
t-fault: TX FAULT ASSERTED, TX SIGNAL NOT RECOVERED
t_init*
t-reset: TX DISABLE ASSERTED THEN NEGATED, TX SIGNAL RECOVERED
OCCURANCE OF FAULT
Tx_FAULT
LOS
TRANSMITTED SIGNAL
t_fault
t_loss_on
t_reset
* SFP SHALL CLEAR Tx_FAULT IN
t_init IF THE FAILURE IS TRANSIENT
t-fault: TX DISABLE ASSERTED THEN NEGATED,
TX SIGNAL NOT RECOVERED
Figure 5. Timing Diagrams
15
OCCURANCE
OF LOSS
OPTICAL SIGNAL
Tx_DISABLE
t_init*
t-loss-on & t-loss-off
t_loss_off
AVAGO AFCT-576xZ
### nm LASER PROD
21CFR(J) CLASS 1
COUNTRY OF ORIGIN YYWW
######
Notes:
1. Bail delatch is colored BLUE for SONET/Single-Mode Identification.
Figure 6. Module Drawing
16
Figure 7. Assembly Drawing
17
Figure 8. SFP host board mechnical layout
18
Ordering Information
Please contact your local field sales engineer or one of Avago Technologies franchised distributors for ordering information. For technical information, please visit Avago Technologies’ web-page at www.avagotech.com or contact one of
Avago Technologies’ regional Technical Response Centers. For information related to SFF Committee documentation,
visit www.sffcommittee.org.
1300nm FP Laser (Operating Case Temperature -10 to +85 °C)
With DMI
AFCT-5765NLZ standard de-latch
AFCT-5765NPZ bail de-latch
Without DMI
AFCT-5760NLZ standard de-latch
AFCT-5760NPZ bail de-latch
1300nm FP Laser (Operating Case Temperature -40 to +85 °C)
With DMI
AFCT-5765ANLZ standard de-latch
AFCT-5765ANPZ bail de-latch
Without DMI
AFCT-5760ANLZ standard de-latch
AFCT-5760ANPZ bail de-latch
EEPROM Content and / or Label Options
AFCT-5760XXXX-YYY
AFCT-5765XXXX-YYY
Where
“XXXX” refers to product option
“YYY” is customer specific
For product information and a complete list of distributors, please go to our web site: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries.
Data subject to change. Copyright © 2005-2012 Avago Technologies. All rights reserved. Obsoletes AV01-0519EN
AV02-0140EN - September 12, 2012