AFCT-57J7ATPZ [AVAGO]
Compatible, Digital Diagnostic Optical Transceiver; 兼容，数字诊断光端机
| 型号： | AFCT-57J7ATPZ |
| 厂家： | 
AVAGO TECHNOLOGIES LIMITED |
| 描述： | Compatible, Digital Diagnostic Optical Transceiver |
| 文件： | 总17页 (文件大小：248K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AFCT-57J7ATPZ
1310nm, 20km, 7.373/6.144 Gb/s, Low Voltage (3.3 V)
SFP (Small Form Pluggable), RoHS OBSAI/CPRI
Compatible, Digital Diagnostic Optical Transceiver
Data Sheet
Description
Features
The AFCT-57J7ATPZ optical transceiver supports high- Diagnostic features per SFF-8472 “Diagnostic
speed serial links over singlemode optical fiber at signaling
rates up to 7.373 Gb/s. Compliant with Small Form
Pluggable (SFP) Multi Source Agreement (MSA) mechani-
cal and electrical specifications, ANSI Fibre Channel FC-PI-3
and compatible with IEEE 802.3 for gigabit applications.
Monitoring Interface for Optical Transceivers”
Compliant to Restriction on Hazardous Substances
(RoHS) directive
Real time monitors of:
– Transmitted average optical power
– Received average optical power
– Laser bias current
As an enhancement to the conventional SFP interface
defined in SFF-8074i, the AFCT-57J7ATPZ is compliant
to SFF-8472 (digital diagnostic interface for SFP). Using
the 2-wire serial interface defined in the SFP MSA, the
AFCT-57J7ATPZ provides real time temperature, supply
voltage, laser bias current, laser average output power
and received average input power. This information is in
addition to the conventional SFP data. The digital diagnos-
tic interface also adds the ability to disable the transmitter
– Temperature
– Supply voltage
High performance 1310 nm DFB laser
Wide Temperature and Supply Voltage Operation
(-40°C to 85°C) (3.3 V 10ꢀ)
(TX_DISABLE), monitor for Transmitter Faults (TX_FAULT), Management interface specifications per SFF
and monitor for Receiver Loss of Signal (RX_LOS).
Committee SFF 8431
Mechanical specifications per SFF Committee SFF
Related Products
8432 Improved Pluggable Formfactor "IPF"
AFBR-57J7APZ: 850nm +3.3V LC SFP
Up to 20km with single mode fiber for 7.373 Gb/s
Up to 20km with single mode fiber for 6.144 Gb/s
for 7.373/6.144 GBd CPRI/OBSAI
AFBR-57J5APZ: 850nm +3.3V LC SFP
LC Duplex optical connector interface conforming to
for 3.072/2.456 GBd CPRI/OBSAI
ANSI TIA/EIA604-10 (FOCIS 10)
AFCT-57J5APZ: 1310nm +3.3V LC SFP
IEC 60825-1 Class 1/CDRH Class 1 laser eye safe
for 3.072/2.456 GBd CPRI/OBSAI
Compatible with Fibre Channel and Gigabit Ethernet
AFCT-57J5ATPZ: 1310nm +3.3V LC SFP
applications
for 3.072/2.456 GBd CPRI/OBSAI
Applications
Wireless and cellular base station system interconnect:
– OBSAI rates 6.144 Gb/s, 3.072 Gb/s, 1.536 Gb/s
– CPRI rates 7.373 Gb/s, 2.458 Gb/s, 1.229 Gb/s
Installation
Compliance Prediction
The AFCT-57J7ATPZ can be installed in any SFF-8074i Compliance prediction is the ability to determine if an
compliant Small Form Pluggable (SFP) port regardless of optical transceiver is operating within its operating and en-
host equipment operating status. The AFCT-57J7ATPZ is vironmentalrequirements.AFCT-57J7ATPZdevicesprovide
hot-pluggable, allowing the module to be installed while real-time access to transceiver internal supply voltage
the host system is operating and on-line. Upon insertion, and temperature, allowing a host to identify potential
the transceiver housing makes initial contact with the component compliance issues. Received optical power is
host board SFP cage, mitigating potential damage due to also available to assess compliance of a cable plant and
Electro-Static Discharge (ESD).
remote transmitter. When operating out of requirements,
the link cannot guarantee error free transmission.
Digital Diagnostic Interface and Serial Identification
Fault Isolation
The 2-wire serial interface is based on ATMEL AT24C01A
series EEPROM protocol and signaling detail. Convention- The fault isolation feature allows a host to quickly pinpoint
al SFP EEPROM memory, bytes 0-255 at memory address
0xA0, is organized in compliance with SFF-8074i. New
the location of a link failure, minimizing downtime. For
optical links, the ability to identify a fault at a local device,
digital diagnostic information, bytes 0-255 at memory remote device or cable plant is crucial to speeding service
address 0xA2, is compliant to SFF-8472. The new diag- of an installation. AFCT-57J7ATPZ real-time monitors of
nostic information provides the opportunity for Predic-
Tx_Bias, Tx_Power, Vcc, Temperature and Rx_Power can be
tive Failure Identification, Compliance Prediction, Fault used to assess local transceiver current operating condi-
Isolation and Component Monitoring.
tions. In addition, status flags Tx_Disable and Rx Loss of
Signal (LOS) are mirrored in memory and available via the
two-wire serial interface.
Predictive Failure Identification
The AFCT-57J7ATPZ predictive failure feature allows a
host to identify potential link problems before system per-
Component Monitoring
formance is impacted. Prior identification of link problems Component evaluation is a more casual use of the AFCT-
enables a host to service an application via “fail over” to a 57J7ATPZ real-time monitors of Tx_Bias, Tx_Power,
redundant link or replace a suspect device, maintaining Vcc, Temperature and Rx_Power. Potential uses are as
system uptime in the process. For applications where ultra- debugging aids for system installation and design, and
high system uptime is required, a digital SFP provides a
means to monitor two real-time laser metrics associated
transceiver parametric evaluation for factory or field qual-
ification. For example, temperature per module can be
with observing laser degradation and predicting failure: observed in high density applications to facilitate thermal
average laser bias current (Tx_Bias) and average laser evaluation of blades, PCI cards and systems.
optical power (Tx_Power).
2
OPTICAL INTERFACE
LIGHT FROM FIBER
ELECTRICAL INTERFACE
RECEIVER
PHOTO-DETECTOR
RD+ (RECEIVE DATA)
RD– (RECEIVE DATA)
Rx LOSS OF SIGNAL
AMPLIFICATION
& QUANTIZATION
MOD-DEF2 (SDA)
CONTROLLER & MEMORY
MOD-DEF1 (SCL)
MOD-DEF0
TRANSMITTER
DFB Laser
TX_DISABLE
LASER
TD+ (TRANSMIT DATA)
TD– (TRANSMIT DATA)
TX_FAULT
DRIVER &
SAFETY
LIGHT TO FIBER
CIRCUITRY
Figure 1. Transceiver functional diagram.
Transmitter Section
The contents of A2h, byte 110, bit 6 are logic OR’d with
hardware Tx_Disable (pin 3) to control transmitter
operation
The transmitter section includes a 1310-nm distributed
feedback (DFB) laser and a transmitter driver circuit. The
driver circuit maintains a constant average optical power
output with Fibre Channel and Ethernet 8B/10B coded
data. Optical connection to the transmitter is provided via
an LC connector. The TOSA is driven by a custom IC which
uses the incoming differential high speed logic signal
to modulate the laser diode driver current. This Tx laser
driver circuit regulates the optical power at a constant
level provided the incoming data pattern is dc balanced
(8B/10B code, for example).
Transmit Fault (TX_FAULT)
A catastrophic laser fault will activate the transmitter
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
transmitter fault condition can also be monitored via the
two-wire serial interface (address A2, byte 110, bit 2).
Transmit Disable (TX_DISABLE)
The AFCT-57J7ATPZ accepts a TTL and CMOS compatible
transmit disable control signal input (pin 3) which shuts
down the transmitter optical output. A high signal imple-
ments this function while a low signal allows normal trans-
ceiveroperation.Intheeventofafault(e.g.eyesafetycircuit
activated), cycling this control signal resets the module as
depicted in Figure 4. An internal pull up resistor disables
the transceiver transmitter until the host pulls the input
low. Host systems should allow a 10 ms interval between
successive assertions of this control signal. Tx_Disable can
also be asserted via the two-wire serial interface (address
A2h, byte 110, bit 6) and monitored (address A2h, byte
110, bit 7).
Eye Safety Circuit
The AFCT-57J7ATPZ provides Class 1 (single fault tolerant)
eye safety by design and has been tested for compliance
with the requirements listed in Table 1. The eye safety
circuit continuously monitors the optical output power
level and will disable the transmitter upon detecting an
unsafe condition beyond the scope of Class 1 certification.
Such unsafe conditions can be due to inputs from the host
board (Vcc fluctuation, unbalanced code) or a fault within
the transceiver.
3
Receiver Section
Caution
The receiver section includes the Receiver Optical Sub-
Therearenouserserviceablepartsnormaintenancerequire-
Assembly (ROSA) and the amplification/quantization ments for the AFCT-57J7ATPZ. All mechanical adjustments
circuitry. The ROSA, containing a PIN photodiode and are made at the factory prior to shipment. Tampering with,
custom transimpedance amplifier, is located at the optical modifying, misusing or improperly handling the AFCT-
interface and mates with the LC optical connector. The 57J7ATPZ will void the product warranty. It may also result
ROSA output is fed to a custom IC that provides post-am- in improper operation and possibly overstress the laser
plification and quantization.
source. Performance degradation or device failure may
result. Connection of the AFCT-57J7ATPZ to a light source
not compliant with ANSI FC-PI or IEEE 802.3 specifications,
operating above maximum operating conditions or in a
manner inconsistent with it’s design and function may
result in exposure to hazardous light radiation and may
constitute an act of modifying or manufacturing a laser
product. Persons performing such an act are required by
law to re-certify and re-identify the laser product under
the provisions of U.S. 21 CFR (Subchapter J) and TUV.
Receiver Loss of Signal (Rx_LOS)
Thepost-amplificationICalsoincludestransitiondetection
circuitry which monitors the ac level of incoming optical
signals and provides a TTL/CMOS compatible status signal
to the host (pin 8). An adequate optical input results in a
low Rx_LOS output while a high Rx_LOS output indicates
an unusable optical input. The Rx_LOS thresholds are
factory set so that a high output indicates a definite optical
fault has occurred. Rx_LOS can also be monitored via the
two-wire serial interface (address A2h, byte 110, bit 1).
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
Avago Technologies Semiconductor Products Customer
Response Center at 1-800-235-0312. For information
related to SFF Committee documentation visit www.sffcom-
mittee.org.
Functional Data I/O
The AFCT-57J7ATPZ interfaces with the host circuit board
through twenty I/O pins (SFP electrical connector) iden-
tified by function in Table 2. The board layout for this
interface is depicted in Figure 6.
The AFCT-57J7ATPZ high speed transmit and receive in-
terfaces require SFP MSA compliant signal lines on the
host board. To simplify board requirements, biasing Regulatory Compliance
resistors and ac coupling capacitors are incorporated into
The AFCT-57J7ATPZ complies with all applicable laws
the SFP transceiver module (per SFF-8074i) and hence are
not required on the host board. The Tx_Disable, Tx_Fault,
Rx_LOS require TTL lines on the host board (per SFF-8074i)
if used. If an application chooses not to take advantage
of the functionality of these pins, care must be taken to
ground Tx_Disable (for normal operation).
and regulations as detailed in Table 1. Certification level
is dependent on the overall configuration of the host
equipment. The transceiver performance is offered as a
figure of merit to assist the designer.
Electrostatic Discharge (ESD)
Figure 2 depicts the recommended interface circuit to
link the AFCT-57J7ATPZ to supporting physical layer ICs.
Timing for MSA compliant control signals implemented in
the transceiver are listed in Figure 4.
The AFCT-57J7ATPZ is compatible with ESD levels found
in typical manufacturing and operating environments
as described in Table 1. In the normal handling and
operation of optical transceivers, ESD is of concern in two
circumstances.
Application Support
The first case is during handling of the transceiver prior
to insertion into an SFP compliant cage. To protect the
device, it’s important to use normal ESD handling precau-
tions. These include using of grounded wrist straps, work-
benches and floor wherever a transceiver is handled.
An Evaluation Kit and Reference Designs are available to
assist in evaluation of the AFCT-57J7ATPZ. Please contact
your local Field Sales representative for availability and
ordering details.
The second case to consider is static discharges to the
exterior of the host equipment chassis after installation.
If the optical interface is exposed to the exterior of host
equipment cabinet, the transceiver may be subject to
system level ESD requirements.
4
Electromagnetic Interference (EMI)
EMI Immunity (Susceptibility)
Equipment incorporating gigabit transceivers is typically Due to its shielded design, the EMI immunity of the AFCT-
subject to regulation by the FCC in the United States, 57J7ATPZ exceeds typical industry standards.
CENELEC EN55022 (CISPR 22) in Europe and VCCI in Japan.
Flammability
The AFCT-57J7ATPZ’s compliance to these standards is
detailed inTable 1. The metal housing and shielded design
of the AFCT-57J7ATPZ minimizes the EMI challenge facing
the equipment designer.
The AFCT-57J7ATPZ optical transceiver is made of metal
and high strength, heat resistant, chemical resistant and
UL 94V-0 flame retardant plastic.
Table 1. Regulatory Compliance
Feature
Test Method
Performance
Electrostatic Discharge (ESD)
to the Electrical Pins
MIL-STD-883C
Method 3015.4
Class 2 (> 1000 Volts)
Electrostatic Discharge (ESD)
to the Duplex LC Receptacle
Variation of IEC 61000-4-2
Typically, no damage occurs with 25 kV when
the duplex LC connector receptacle is
contacted by a Human Body Model probe.
GR1089
10 contacts of 8 kV on the electrical faceplate
with device inserted into a panel.
Electrostatic Discharge (ESD)
to the Optical Connector
Variation of IEC 801-2
Air discharge of 15kV (min.) contact to
connector without damage.
Electromagnetic Interference
(EMI)
FCC Class B
CENELEC EN55022 Class B
(CISPR 22A)
System margins are dependent on customer
board and chassis design.
VCCI Class 1
Immunity
Variation of IEC 61000-4-3
Typically shows no measurable effect
from a 10 V/m swept from 10 MHZ to 1 GHz.
Laser Eye Safety and
Equipment Type Testing
US FDA CDRH AEL Class 1
US21 CFR, Subchapter J per
CDRH #9521220-158
TUV #30783705.001
Paragraphs 1002.10 and 1002.12
BAUART
GEPRUFT
¨
(IEC) EN60825-1: 1994 + A11 + A2
(IEC) EN60825-2: 1994 + A1
(IEC) EN60950: 1992 + A1 + A2 +
A3 + A4 + A11
¨
TUV
TYPE
APPROVED
Rheinland
Product Safety
Component Recognition
Underwriters Laboratories and
Canadian Standards Association
Joint Component Recognition
for Information Technology
Equipment including Electrical
Business Equipment
UL #E173874
Restriction on Hazardous
Substances (RoHS) Compliance
Less than 1000 ppm of cadmium, lead, mercury,
hexavalent chromium, polybrominated biphe
nyls, and polybrominated biphenyl ethers.
5
VCC,T
6.8 k
GND,T
Tx DIS
Tx_DISABLE
Tx_FAULT
Tx FAULT
TD+
TD–
100
LASER DRIVER
4.7 k to 10 k
0.1 F
1 H
VCC,T
VCC,R
3.3 V
10 F
SERDES IC
0.1 F
VCC,R
VCC,R
50
1 H
PROTOCOL IC
10 F
0.1 F
4.7 k to
10 k
50
RD+
100
RD–
Rx LOS
LOSS OF SIGNAL
POST AMPLIFIER
3.3 V
GND,R
4.7 k to 10 k
4.7 k to 10 k
MOD_DEF0 MOD_DEF1 MOD_DEF2
4.7 k to 10 k
MODULE DETECT
SCL
SDA
Figure 2. Typical application configuration.
1 H
1 H
VCCT
0.1 F
3.3 V
VCCR
0.1 F
10 F
0.1 F
10 F
SFP MODULE
HOST BOARD
NOTE: INDUCTORS MUST HAVE LESS THAN 1 W SERIES RESISTANCE TO LIMIT VOLTAGE DROP TO THE SFP MODULE.
Figure 3. Recommended power supply filter.
6
Table 2. Pin Description
Pin
1
Name
Function/Description
Notes
VeeT
Transmitter Ground
2
TX_FAULT
TX_DISABLE
MOD-DEF2
MOD-DEF1
MOD-DEF0
No Connect
RX_LOS
No Connect
VeeR
Transmitter Fault Indication – High indicates a fault condition
Transmitter Disable – Module optical output disables on high or open
Module Definition 2 – Two wire serial ID interface data line (SDA)
Module Definition 1 – Two wire serial ID interface clock line (SCL)
Module Definition 0 – Grounded in module (module present indicator)
Internal pull down 100kOhm to ground
Loss of Signal – High indicates loss of received optical signal
Internal pull down 100kOhm to ground
Receiver Ground
Note 1
Note 2
Note 3
Note 3
Note 3
3
4
5
6
7
8
Note 4
9
10
11
12
13
14
15
16
17
18
19
VeeR
Receiver Ground
RD-
Inverse Received Data Out
Note 5
Note 5
RD+
Received Data Out
VeeR
Receiver Ground
VccR
Receiver Power + 3.3 V
Note 6
Note 6
VccT
Transmitter Power + 3.3 V
VeeT
Transmitter Ground
TD+
Transmitter Data In
Note 7
Note 7
TD-
Inverse Transmitter Data In
20
VeeT
Transmitter Ground
Notes:
1. TX_FAULT is an open collector/drain output, which must be pulled up with a 4.7k – 10k resistor on the host board. When high, this output
indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.
2. TX_DISABLE is an input that is used to shut down the transmitter optical output. It is internally pulled up (within the transceiver) with a 6.8k
resistor.
Low (0 – 0.8V):
Between (0.8V and 2.0V):
High (2.0 – Vcc max) or OPEN:
Transmitter on
Undefined
Transmitter Disabled
3. The signals Mod-Def 0, 1, 2 designate the two wire serial interface pins. They must be pulled up with a 4.7k – 10k resistor on the host board.
Mod-Def 0 is grounded by the module to indicate the module is present
Mod-Def 1 is serial clock line (SCL) of two wire serial interface
Mod-Def 2 is serial data line (SDA) of two wire serial interface
4. RX_LOS (Rx Loss of Signal) is an open collector/drain output that must be pulled up with a 4.7k – 10k resistor on the host board. 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 < 0.8V.
5. RD-/+ designate the differential receiver outputs. They are AC coupled 100 differential lines which should be terminated with 100 differential
at the host SERDES input. AC coupling is done inside the transceiver and is not required on the host board. The voltage swing on these lines will be
between 370 and 850 mV differential (185 – 425 mV single ended) when properly terminated.
6. VccR and VccT are the receiver and transmitter power supplies. They are defined at the SFP connector pin. The maximum supply current is 300 mA
and the associated in-rush current will typically be no more than 30 mA above steady state after 2 microseconds.
7. TD-/+ designate 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 not required on the host board. The inputs will accept differential swings of 180 – 1200 mV
(90 – 600mV single ended).
7
Table 3. Absolute Maximum Ratings
Parameter
Symbol
TS
Minimum
-40
Maximum
100
Unit
C
Notes
Storage Temperature
Case Operating Temperature
Relative Humidity
Note 1, 2
Note 1, 2
Note 1
TC
-40
85
C
RH
5
85
ꢀ
V
Supply Voltage
VccT, R
VIN
-0.5
-0.5
3.8
Note 1, 2, 3
Note 1
Low Speed Input Voltage
Notes:
Vcc + 0.5
V
1. Absolute Maximum Ratings are those values beyond which damage to the device may occur if these limits are exceeded for other than a short
period of time. See Reliability Data Sheet for specific reliability performance.
2. Between Absolute Maximum Ratings and the Recommended Operating Conditions functional performance is not intended, device reliability is
not implied, and damage to the device may occur over an extended period of time.
3. The module supply voltages, V T and V R must not differ by more than 0.5 V or damage to the device may occur.
CC
CC
Table 4. Recommended Operating Conditions
Parameter
Supply Voltage
Data Rate
Tcase
Symbol
Minimum
2.97
Maximum
3.63
Unit
V
Notes
VccT, R
Note 2
Note 2
Note 1, 2
1.288
-40
7.373
85
Gb/s
°C
Notes:
1. The Ambient Operating Temperature limitations are based on the Case Operating Temperature limitations and are subject to the host system
thermal design.
2. Recommended Operating Conditions are those values for which functional performance and device reliability is implied.
Table 5. Transceiver Electrical Characteristics
(T = -40°C to 85°C, VccT, VccR = 3.3 V 10ꢀ)
C
Parameter
Symbol
PSNR
ICC
Minimum
Typical
Maximum
Unit Notes
AC Electrical Characteristics
Power Supply Noise Rejection (peak-peak)
DC Electrical Characteristics
Module Supply Current
100
mV
Note 1
300 mA @ 70°C
350 mA @ 85°C
Power Dissipation
PDISS
VOH
VOL
1000
mW
V
Low Speed Outputs:
Transmit Fault (TX_FAULT), Loss of Signal
(RX_LOS), MOD-DEF 2
2.0
VccT,R+0.3
0.6
Note 2
Note 3
V
Low Speed Inputs:
Transmit Disable (TX_DIS),
MOD-DEF 1, MOD-DEF 2
VIH
VIL
2.0
0
Vcc
0.8
V
V
Notes:
1. Filter per SFP specification is required on host board to remove 10 Hz to 2 MHz content.
2. Pulled up externally with a 4.7k – 10k resistor on the host board to 3.3 V.
3. Pulled up externally with a 4.7k – 10k resistor on the host board to 3.3 V.
8
Table 6. Transmitter and Receiver Electrical Characteristics
(T = -40°C to 85°C, VccT, VccR = 3.3 V 10ꢀ)
C
Parameter
Symbol
Minimum
Typical
Maximum
Unit
Notes
High Speed Data Input:
VI
180
1200
mV
Note 1
Transmitter Differential Input Voltage (TD +/-)
High Speed Data Output:
Receiver Differential Output Voltage (RD +/-)
Vo
DJ
370
850
15
mV
ps
Note 2
Note 3, 5
Note 5
Note 4
Receiver Contributed Deterministic Jitter
(2.457 to 7.373 Gb/s)
Receiver Contributed Total Jitter
(2.457 to 7.373 Gb/s)
TJ
40
ps
Receiver Electrical Output Rise & Fall Times
tr, tf
30
85
ps
(20-80ꢀ)
Notes:
1. Internally AC coupled and terminated (100 Ohm differential).
2. Internally AC coupled but requires an external load termination (100 Ohm differential).
3. Contributed DJ is measured on an oscilloscope in average mode with 50ꢀ threshold and K28.5 pattern.
4. 20ꢀ-80ꢀ electrical rise & fall times measured with a 500 MHz signal utilizing a 1010 data pattern.
5. Measured at an input optical power of 154W.
Table 7. Transmitter Optical Characteristics
(T = -40°C to 85°C, VccT, VccR = 3.3 V 10ꢀ)
C
Parameter
Symbol
Minimum Typical
Maximum
Unit
Notes
Modulated Optical Output Power (OMA)
(Peak-to-Peak) (1.288 to 7.373 Gb/s)
Tx,OMA
290
μW
Note 2
Average Optical Output Power
Center Wavelength
Pout
-8.4
dBm
nm
nm
dB
Note 1, 2
C
1260
1360
1.0
-20 dB Spectral Width
Side Mode Supression
Optical Rise/Fall Time
RIN 12 (OMA)
30
tr, tf
RIN
DJ
60
ps
20ꢀ - 80ꢀ
-128
25
dB/Hz
ps
Transmitter Contributed Total Jitter
(2.457 to 7.373 Gb/s)
Transmitter Contributed Total Jitter
(2.457 to 7.373 Gb/s)
TJ
50
ps
Pout TX_DISABLE Asserted
Notes:
POFF
-35
dBm
1. Max Pout is the lesser of Class 1 safety limits (CDRH and EN 60825) or receiver power, max.
2. Into 9/125 m single-mode optical fiber.
3. Contributed DJ is measured on an oscilloscope in average mode with 50ꢀ threshold and K28.5 pattern. Contributed TJ is the sum of contributed
-12
RJ and contributed DJ. Contributed RJ is calculated for 1x10 BER by multiplying the RMS jitter (measured on a single rise or fall edge) from
the oscilloscope by 14. Per FC-PI (Table 9 – SM jitter output, note 1), the actual contributed RJ is allowed to increase above its limit if the actual
contributed DJ decreases below its limits, as long as the component output DJ and TJ remain within their specified FC-PI maximum limits with the
worst case specified component jitter input.
9
Table 8. Receiver Optical Characteristics
(T = -40°C to 85°C, VccT, VccR = 3.3 V 10ꢀ)
C
Parameter
Input Optical Power [Overdrive]
Symbol
PIN
Min.
Typ.
Max.
+ 0.5
Unit
dBm, avg
Notes
Input Optical Modulation Amplitude (Peak-to-Peak)
(2.457 to 7.373 Gb/s) [Sensitivity]
OMA
40
57
W, oma
W, oma
1X10-12 BER, Note 1
1X10-15 BER, Note 1
Return Loss
12
dB
Loss of Signal – Assert
PA
13.8
W, oma
dBm, oma
dBm, oma
dB
-30
0.5
Loss of Signal – De-Assert
PD
-16.0
Loss of Signal Hysteresis
Notes:
PD - PA
1. Input Optical Modulation Amplitude (commonly known as sensitivity) requires a valid 8B/10B encoded input.
Table 9. Transceiver Timing Characteristics
(T = -40°C to 85°C, VccT, VccR = 3.3 V 10ꢀ)
C
Parameter
Symbol
Minimum
Maximum
Unit
Notes
Hardware TX_DISABLE Assert Time
Hardware TX_DISABLE Negate Time
Time to initialize, including reset of TX_FAULT
Hardware TX_FAULT Assert Time
Hardware TX_DISABLE to Reset
Hardware RX_LOS DeAssert Time
Hardware RX_LOS Assert Time
Software TX_DISABLE Assert Time
Software TX_DISABLE Negate Time
Software Tx_FAULT Assert Time
Software Rx_LOS Assert Time
Software Rx_LOS De-Assert Time
Analog parameter data ready
Serial bus hardware ready
t_off
10
μs
Note 1
Note 2
Note 3
Note 4
Note 5
Note 6
Note 7
Note 8
Note 9
Note 10
Note 11
Note 12
Note 13
Note 14
Note 15
t_on
1
ms
ms
μs
t_init
300
100
t_fault
t_reset
10
μs
t_loss_on
t_loss_off
t_off_soft
t_on_soft
t_fault_soft
t_loss_on_soft
t_loss_off_soft
t_data
100
100
100
100
100
100
100
1000
300
10
μs
μs
ms
ms
ms
ms
ms
ms
ms
ms
kHz
t_serial
Write Cycle Time
t_write
Serial ID Clock Rate
Notes:
f_serial_clock
400
1. Time from rising edge of TX_DISABLE to when the optical output falls below 10ꢀ of nominal.
2. Time from falling edge of TX_DISABLE to when the modulated optical output rises above 90ꢀ of nominal.
3. Time from power on or falling edge of Tx_Disable to when the modulated optical output rises above 90ꢀ 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 10ꢀ 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 90ꢀ 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.
10
Table 10. Transceiver Digital Diagnostic Monitor (Real Time Sense) Characteristics
(T = -40°C to 85°C, VccT, VccR = 3.3 V 10ꢀ)
C
Parameter
Symbol
Min.
Units Notes
Transceiver Internal Temperature
Accuracy
TINT
3.0
°C
Temperature is measured internal to the transceiver.
Valid from = -10°C to 85°C case temperature.
Transceiver Internal Supply
Voltage Accuracy
VINT
0.1
V
Supply voltage is measured internal to the transceiver
and can, with less accuracy, be correlated to
voltage at the SFP Vcc pin. Valid over 3.3 V 10ꢀ.
Transmitter Laser DC Bias Current
Accuracy
IINT
PT
10
ꢀ
IINT is better than 10ꢀ of the nominal value.
Transmitted Average Optical
Output Power Accuracy
3.0
3.0
dB
dB
Coupled into 9/125 μm single-mode fiber. Valid from
100 W to 500 W, average.
Received Optical Input Power
Accuracy
PR
Coupled from 9/125 μm single-mode fiber. Valid from
30 W to 500 W, average.
VCCT,R > 2.97 V
VCCT,R > 2.97 V
TX_FAULT
TX_FAULT
TX_DISABLE
TX_DISABLE
TRANSMITTED SIGNAL
TRANSMITTED SIGNAL
t_init
t_init
t-init: TX DISABLE NEGATED
VCCT,R > 2.97 V
t-init: TX DISABLE ASSERTED
TX_FAULT
TX_DISABLE
TX_FAULT
TX_DISABLE
TRANSMITTED SIGNAL
TRANSMITTED SIGNAL
t_off
t-off & t-on: TX DISABLE ASSERTED THEN NEGATED
OCCURANCE OF FAULT
t_on
t_init
INSERTION
t-init: TX DISABLE NEGATED, MODULE HOT PLUGGED
OCCURANCE OF FAULT
TX_FAULT
TX_DISABLE
TX_FAULT
TX_DISABLE
TRANSMITTED SIGNAL
TRANSMITTED SIGNAL
t_fault
t_reset
* SFP SHALL CLEAR TX_FAULT IN
< t_init IF THE FAILURE IS TRANSIENT
t_init*
t-fault: TX FAULT ASSERTED, TX SIGNAL NOT RECOVERED
t-reset: TX DISABLE ASSERTED THEN NEGATED, TX SIGNAL RECOVERED
OCCURANCE OF FAULT
TX_FAULT
OCCURANCE
OF LOSS
OPTICAL SIGNAL
LOS
TX_DISABLE
TRANSMITTED SIGNAL
t_fault
* SFP SHALL CLEAR TX_FAULT IN
< t_init IF THE FAILURE IS TRANSIENT
t_loss_on
t_loss_off
t_reset
t_init*
t-fault: TX DISABLE ASSERTED THEN NEGATED, TX SIGNAL NOT RECOVERED
t-loss-on & t-loss-off
Figure 4. Transceiver timing diagrams (module installed except where noted).
11
Table 12. EEPROM Serial ID Memory Contents – Conventional SFP Memory (Address A0h)
Byte # Data
Decimal Hex
Byte #
Decimal
Data
Hex
Notes
Notes
[2]
[2]
[2]
0
1
2
3
03
04
07
00
SFP physical device
SFP function defined by serial ID only
LC optical connector
37
38
39
40
00
17
6A
41
Hex Byte of Vendor OUI
Hex Byte of Vendor OUI
Hex Byte of Vendor OUI
“A”- Vendor Part Number ASCII character
4
5
00
00
41
42
46
43
“F”- Vendor Part Number ASCII character
“C”- Vendor Part Number ASCII character
6
00
12
00
01
00
01
4A
00
14
00
00
00
00
00
41
56
41
47
4F
20
20
20
20
43
44
45
46
47
48
41
54
50
5A
53
54
55
56
57
58
59
60
61
62
63
64
65
54
2D
35
37
4A
37
41
54
50
5A
20
20
20
20
20
20
20
05
1E
00
“T”- Vendor Part Number ASCII character
“-”- Vendor Part Number ASCII character
“5”- Vendor Part Number ASCII character
“7”- Vendor Part Number ASCII character
“J”- Vendor Part Number ASCII character
“7”- Vendor Part Number ASCII character
“A”- Vendor Part Number ASCII character
“T”- Vendor Part Number ASCII character
“P”- Vendor Part Number ASCII character
“Z”- Vendor Part Number ASCII character
“ ”- Vendor Part Number ASCII character
“ ”- Vendor Part Number ASCII character
“ ”- Vendor Part Number ASCII character
“ ”- Vendor Part Number ASCII character
“ ”- Vendor Part Number ASCII character
“ ”- Vendor Part Number ASCII character
“ ”- Vendor Part Number ASCII character
7
Long distance
8
9
Single Mode (SM)
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Compatible with 8B/10B encoded data
7400 MBit/sec nominal bit rate (7.373 Gbit/s)
20 km of single mode fiber @ 7.373 GBit/sec
“A”- Vendor Name ASCII character
“V”- Vendor Name ASCII character
“A”- Vendor Name ASCII character
“G”- Vendor Name ASCII character
“O”- Vendor Name ASCII character
“ ”- Vendor Name ASCII character
“ ”- Vendor Name ASCII character
“ ”- Vendor Name ASCII character
“ ”- Vendor Name ASCII character
[3]
Hex Byte of Laser Wavelength
[3]
Hex Byte of Laser Wavelength
[4]
Checksum for Bytes 0-62
00
1A
Hardware SFP TX_DISABLE, TX_FAULT,
& RX_LOS
29
30
31
32
33
20
20
20
20
20
“ ”- Vendor Name ASCII character
“ ”- Vendor Name ASCII character
“ ”- Vendor Name ASCII character
“ ”- Vendor Name ASCII character
“ ”- Vendor Name ASCII character
66
00
00
67
[5]
68-83
84-91
92
Vendor Serial Number ASCII characters
[6]
Vendor Date Code ASCII characters
68
F0
01
Digital Diagnostics, Internal Cal, Rx Pwr
Avg
34
20
“ ”- Vendor Name ASCII character
“ ”- Vendor Name ASCII character
93
A/W, Soft SFP TX_DISABLE, TX_FAULT,
& RX_LOS
35
36
20
00
94
95
SFF-8472 Compliance to revision 9.3
[4]
Checksum for Bytes 64-94
96 - 255 00
Notes:
1. TBD.
2. The IEEE Organizationally Unique Identifier (OUI) assigned to Avago Technologies is 00-17-6A (3 bytes of hex).
3. Laser wavelength is represented in 16 unsigned bits. The hex representation of 1310 (nm) is 051E.
4. Addresses 63 and 95 are checksums calculated (per SFF-8472 and SFF-8074) and stored prior to product shipment.
5. Addresses 68-83 specify the AFCT-57J7ATPZ ASCII serial number and will vary on a per unit basis.
6. Addresses 84-91 specify the AFCT-57J7ATPZ ASCII date code and will vary on a per date code basis.
12
Table 13: EEPROM Serial ID Memory Contents – Enhanced Feature Set Memory (Address A2h)
Byte #
Decimal Notes
Byte #
Decimal Notes
Byte #
Decimal Notes
0
1
Temp H Alarm MSB[1]
26
27
Tx Pwr L Alarm MSB[4]
104
105
Real Time Rx average
MSB[5]
Temp H Alarm LSB[1]
Tx Pwr L Alarm LSB[4]
Real Time Rx average
LSB[5]
2
3
4
5
6
Temp L Alarm MSB[1]
Temp L Alarm LSB[1]
Temp H Warning MSB[1]
Temp H Warning LSB[1]
Temp L Warning MSB[1]
28
29
30
31
32
Tx Pwr H Warning MSB[4]
Tx Pwr H Warning LSB[4]
Tx Pwr L Warning MSB[4]
Tx Pwr L Warning LSB[4]
Rx Pwr H Alarm MSB[5]
106
107
108
109
110
Reserved
Reserved
Reserved
Reserved
Status/Control - See
Table 14
7
Temp L Warning LSB[1]
Vcc H Alarm MSB[2]
Vcc H Alarm LSB[2]
Vcc L Alarm MSB[2]
Vcc L Alarm LSB[2]
33
Rx Pwr H Alarm LSB[5]
Rx Pwr L Alarm MSB[5]
Rx Pwr L Alarm LSB[5]
Rx Pwr H Warning MSB[5]
Rx Pwr H Warning LSB[5]
Rx Pwr L Warning MSB[5]
Rx Pwr L Warning LSB[5]
Reserved
External Calibration Constants[6]
Checksum for Bytes 0-94[7]
Real Time Temperature MSB[1]
Real Time Temperature LSB[1]
Real Time Vcc MSB[2]
111
112
113
114
115
116
117
Reserved
8
34
Flag Bits - See Table 15
Flag Bits - See Table 15
Reserved
9
35
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
36
37
Reserved
Vcc H Warning MSB[2]
Vcc H Warning LSB[2]
Vcc L Warning MSB[2]
Vcc L Warning LSB[2]
Tx Bias H Alarm MSB[3]
Tx Bias H Alarm LSB[3]
Tx Bias L Alarm MSB[3]
Tx Bias L Alarm LSB[3]
Tx Bias H Warning MSB[3]
Tx Bias H Warning LSB[3]
Tx Bias L Warning MSB[3]
Tx Bias L Warning LSB[3]
Tx Pwr H Alarm MSB[4]
Tx Pwr H Alarm LSB[4]
38
Flag Bits - See Table 15
Flag Bits - See Table 15
39
40-55
56-94
95
118-127 Reserved
128-247 Customer Writeable
248-255 Vendor Specific
96
97
98
99
Real Time Vcc LSB[2]
100
101
102
103
Real Time Tx Bias MSB[3]
Real Time Tx Bias LSB[3]
Real Time Tx Power MSB[4]
Real Time Tx Power LSB[4]
25
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 V.
3. Laser bias current (Tx Bias) is decoded as a 16 bit unsigned integer in increments of 2 A.
4. Transmitted average optical power (Tx Pwr) is decoded as a 16 bit unsigned integer in increments of 0.1 W.
5. Received average optical power (Rx Pwr) is decoded as a 16 bit unsigned integer in increments of 0.1 W.
6. Bytes 55-94 are not intended for use with AFCT-57J7ATPZ, but have been set to default values per SFF-8472.
7. Byte 95 is a checksum calculated (per SFF-8472) and stored prior to product shipment.
13
Table 14. EEPROM Serial ID Memory Contents – Soft Commands (Address A2h, Byte 110)
Status/
Bit #
Control Name
TX_ DISABLE State
Soft TX_ DISABLE
Reserved
Description
Notes
7
Digital state of SFP TX_ DISABLE Input Pin (1 = TX_DISABLE asserted)
Read/write bit for changing digital state of TX_DISABLE function
Note 1
Note 1, 2
6
5
4
Reserved
3
Reserved
2
TX_FAULT State
RX_LOS State
Data Ready (Bar)
Digital state of the SFP TX_FAULT output pin (1 = TX_FAULT asserted)
Digital state of the SFP RX_LOS output pin (1 = RX_LOS asserted)
Indicates transceiver is powered and real time sense data is ready. (0 = Ready)
Note 1
Note 1
Note 1
1
0
Notes:
1. The response time for soft commands of the AFCT-57J7ATPZ is 100 msec as specified by the MSA SFF-8472.
2. Bit 6 is logic OR’d with the SFP TX_DISABLE input pin 3 ... either asserted will disable the SFP transmitter.
Table 15. EEPROM Serial ID Memory Contents – Alarms and Warnings (Address A2h, Bytes 112, 113, 116, 117)
Byte
Bit
7
Flag Bit Name Description
Temp High Alarm
Temp Low Alarm
112
Set when transceiver internal temperature exceeds high alarm threshold
Set when transceiver internal temperature exceeds low alarm threshold
6
5
Vcc High Alarm
Set when transceiver internal supply voltage exceeds high alarm threshold
Set when transceiver internal supply voltage exceeds low alarm threshold
Set when transceiver laser bias current exceeds high alarm threshold
Set when transceiver laser bias current exceeds low alarm threshold
Set when transmitted average optical power exceeds high alarm threshold
Set when transmitted average optical power exceeds low alarm threshold
Set when received optical power exceeds high alarm threshold
4
Vcc Low Alarm
3
Tx Bias High Alarm
Tx Bias Low Alarm
Tx Power High Alarm
Tx Power Low Alarm
Rx Power High Alarm
Rx Power Low Alarm
Reserved
2
1
0
113
116
7
6
Set when received optical power exceeds low alarm threshold
0-5
7
Temp High Warning
Temp Low Warning
Vcc High Warning
Vcc Low Warning
Set when transceiver internal temperature exceeds high warning threshold
Set when transceiver internal temperature exceeds low warning threshold
Set when transceiver internal supply voltage exceeds high warning threshold
Set when transceiver internal supply voltage exceeds low warning threshold
Set when transceiver laser bias current exceeds high warning threshold
Set when transceiver laser bias current exceeds low warning threshold
Set when transmitted average optical power exceeds high warning threshold
Set when transmitted average optical power exceeds low warning threshold
Set when received optical power exceeds high warning threshold
6
5
4
3
Tx Bias High Warning
Tx Bias Low Warning
Tx Power High Warning
Tx Power Low Warning
Rx Power High Warning
Rx Power Low Warning
Reserved
2
1
0
117
7
6
Set when received optical power exceeds low warning threshold
0-5
14
AFCT-57J7ATPZ
Z
TP
-57J7A
T
AFC
Figure 5. Module drawing.
15
X
Y
34.5
10
3x
7.2
7.1
10x 1.05 0.01
0.1 L X A
S
2.5
0.85 0.05
16.25
MIN. PITCH
1
0.1 S X Y
2.5
B
A
1
PCB
EDGE
3.68
5.68
20
PIN 1
10
8.58
8.48
2x 1.7
11.08
14.25
11.93
16.25
REF.
9.6
4.8
11
5
SEE DETAIL 1
9x 0.95 0.05
2.0
11x
0.1 L X A
S
11x 2.0
26.8
2
10
3x
3
41.3
42.3
5
3.2
20x 0.5 0.03
0.06 L A S B S
0.9
LEGEND
20
11
PIN 1
10.53
10.93
1. PADS AND VIAS ARE CHASSIS GROUND
2. THROUGH HOLES, PLATING OPTIONAL
11.93
9.6
0.8
TYP.
10
3. HATCHED AREA DENOTES COMPONENT
AND TRACE KEEPOUT (EXCEPT
CHASSIS GROUND)
4
4. AREA DENOTES COMPONENT
KEEPOUT (TRACES ALLOWED)
2 0.005 TYP.
0.06 L A S B S
2x 1.55 0.05
0.1 L A S B S
DIMENSIONS ARE IN MILLIMETERS
DETAIL 1
Figure 6. SFP host board mechanical layout.
16
1.7 0.9
3.5 0.3
41.78 0.5
Tcase REFERENCE POINT
CAGE ASSEMBLY
15 MAX.
11.73 REF
15.25 0.1
9.8 MAX.
10 REF
(to PCB)
10.4 0.1
PCB
16.25 0.1 MIN. PITCH
0.4 0.1
(below PCB)
DIMENSIONS ARE IN MILLIMETERS
Figure 7. SFP assembly drawing.
Customer Manufacturing Processes
This module is pluggable and is not designed for aqueous
wash, IR reflow, or wave soldering processes.
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 © 2005-2011 Avago Technologies. All rights reserved.
AV02-1833EN - September 29, 2011
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