AFCT-57D3ATMZ Datasheet by Foxconn OE Technologies Singapore Pte. LTD

AVQGO vchMoLoaxzs

AFCT-57D3ATMZ

Features

• Compliant to Restriction on Hazardous Substances

(RoHS) directive

• Diagnostic features per SFF-8472 “Diagnostic

Monitoring Interface for Optical Transceivers”

• Real time monitoring of:

– Transmitted optical power

– Received optical power

– Laser bias current

– Temperature

– Supply voltage

• Rate Select functionality per SFF-8431

• Wide temperature and supply voltage operation

(-10 °C to 85 °C) (3.3 V ± 10%)

• SFP Plus mechanical Applications

• Transceiver specifications per SFP (SFF-8074i) Multi-

Source Agreement and SFF-8472 (revision 11.0)

- 8.5 GBd Fibre Channel operation for FC-PI-4

800-SM-LC-L

- 4.25 GBd Fibre Channel operation for FC-PI-4

400-SM-LC-L

- 2.125 GBd Fibre Channel operation for FC-PI-4

200-SM-LC-L

• Link lengths up to 10 km at 8.5/4.25/2.125 GBd with

single-mode fiber

• LC Duplex optical connector interface conforming to

ANSI TIA/EIA604-10 (FOCIS 10A)

• 1310 nm Distributed Feedback Laser (DFB) source tech-

nology

• IEC 60825-1 Class 1/CDRH Class 1 laser eye safe

• Enhanced EMI performance for high port density ap-

plications

Description

Avago Technologies’ AFCT-57D3ATMZ optical transceiver

supports high-speed serial links over single-mode optical

fiber at signaling rates up to 8.5 GBd. Compliant with Small

Form Pluggable (SFP and SFP Plus) mechanical and elec-

trical specifications for LC Duplex transceivers, ANSI Fibre

Channel for FC-PI-4 and FC-PI-2 for gigabit applications.

The part is electrically interoperable with SFP conformant

devices.

The AFCT-57D3ATMZ supports both TX and RX Rate Select

feature. It uses Rate Select to vary maximum transmitted

RS(1) optical power for assisting interoperability with

legacy 2G and 4G receivers. Fibre Channel FC-PI-4 has

increased maximum received optical powers with each

new data rate. As long as minimum link distances are

chosen to avoid receiver overload, Rate Select enabled

transceivers are not required. However, if link distances

vary from 2 m to 10 km, the transmitter Rate Select RS(1)

can be utilized to guarantee interoperability with low

speed receivers.

The AFCT-57D3ATMZ has isolated signal and chassis SFP

grounds to maximize flexibility in host system applications.

As an enhancement to the conventional SFP interface

defined in SFF-8074i, the AFCT-57D3ATMZ supports

SFF-8472 (digital diagnostic interface for optical trans-

ceivers). Using the 2-wire serial interface defined in the

SFF-8472 MSA, the AFCT-57D3ATMZ provides real-time

temperature, supply voltage, laser bias current, laser

average output power and received input power. This in-

formation is in addition to conventional SFP base data. 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).

Related Product

• AFBR-57D9AMZ: 850 nm + 3.3 V LC SFP

for 8.5/4.25/2.125 GBd Fibre Channel

AFCT-57D3ATMZ

Digital Diagnostic SFP 10 km, 1310 nm DFB, 8.5/4.25/2.125 GBd

Fibre Channel Optical Transceiver with TX/RX Rate Select

Data Sheet

Description, continued

Installation

The AFCT-57D3ATMZ can be installed in any SFF-8074i

compliant Small Form Pluggable (SFP) port regardless of

host equipment operating status. The AFCT-57D3ATMZ is

hot-pluggable, allowing the module to be installed while

the host system is operating and on-line. Upon insertion,

the transceiver housing makes initial contact with the

host board SFP cage, mitigating potential damage due to

Electro-Static Discharge (ESD).

Digital Diagnostics

The AFCT-57D3ATMZ is compliant to the Diagnostic Mon-

itoring Interface (DMI) defined in the document SFF-8472.

These features allow the host to access, via I2C-bus,

real-time diagnostic monitors of transmit optical power,

received optical power, temperature, supply voltage, and

laser operating current.

Predictive Failure Identification

The AFCT-57D3ATMZ predictive failure feature allows a

host to identify potential link problems before system per-

formance is impacted. Prior identification of link problems

enables a host to service an application via “fail over” to a

redundant link or replace a suspect device, maintaining

system uptime in the process. For applications where ul-

tra-high system uptime is required, a digital SFP provides

a means to monitor two real-time laser metrics asso ciated

with observing laser degradation and predicting failure:

average laser bias current (Tx_Bias) and average laser

optical power (Tx_Power).

Compliance Prediction

Compliance prediction is the ability to determine if an

optical transceiver is operating within its operating and

environmental requirements. AFCT-57D3ATMZ devices

provide real-time access to transceiver internal supply

voltage and temperature, allowing a host to identify

potential component compliance issues. Received optical

power is also available to assess compliance of a cable

plant and remote transmitter. When operating out of

requirements, the link cannot guarantee error free trans-

mission.

Fault Isolation

The fault isolation feature allows a host to quickly pinpoint

the location of a link failure, minimizing downtime. For

optical links, the ability to identify a fault at a local device,

remote device or cable plant is crucial to speeding service

of an installation. AFCT-57D3ATMZ real-time monitors of

Tx_Bias, Tx_Power, Vcc, Temperature and Rx_Power can

be used to assess local transceiver current operating con-

ditions. In addition, status flags Tx_Disable and Rx Loss of

Signal (LOS) are mirrored in memory and available via the

two-wire serial interface.

Figure 1. Transceiver functional diagram.

LIGHT FROM FIBER

LIGHT TO FIBER

PHOTO-DETECTOR

RECEIVER

AMPLIFICATION

& QUANTIZATION

RD+ (RECEIVE DATA)

RD- (RECEIVE DATA)

Rx LOSS OF SIGNAL

DFB Laser

TRANSMITTER

LASER

DRIVER &

SAFETY

CIRCUITRY

TX_DISABLE

TD+ (TRANSMIT DATA)

TD- (TRANSMIT DATA)

TX_FAULT

ELECTRICAL INTERFACE

MOD-DEF2 (SDA)

MOD-DEF1 (SCL)

MOD-DEF0

CONTROLLER & MEMORY

OPTICAL INTERFACE

RATE_SELECT RS(1)

RATE_SELECT RS(0)

Eye Safety Circuit

The AFCT-57D3ATMZ 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.

Fibre Channel Transmit Rate Select RS(1)

The AFCT-57D3ATMZ transceiver contains a parametric

optimization circuit to ensure performance for 2.125 Gb/s,

4.25Gb/s and 8.5Gb/s data rates. When RS(1) is high, the

transceiver transmit optical power is optimized for 8.5Gb/s

performance as defined in FC-PI-4. When RS(1) is low (or

open), the transceiver transmit optical power is optimized

for 2.125Gb/s and 4.25Gb/s performance. RS(1) can also

be asserted through the two-wire serial interface (address

A2h, byte 118, bit 3) and monitored (address A2h, byte

110, bit 5).

The contents of A2h, byte 118, bit 3 are logic OR’d with

hardware RS(1) (pin 9) to control transmitter operation.

Fibre Channel Receive Rate Select RS(0)

The AFCT-57D3ATMZ receiver is designed to ensure per-

formance for 2.125 Gb/s, 4.25Gb/s and 8.5 Gb/s data rates.

When RS(0) is High, the receiver chain is optimized for 8.5

Gb/s performance as defined in FC-PI-4. When RS(0) is Low

(or open), the receiver chain is optimized for 2.125 Gb/s

and 4.25 Gb/s performance.

RS(0) can also be asserted through the two-wire serial

interface (address A2h, byte 110, bit 3) and monitored

(address A2h, byte 110, bit 4). The contents of A2h, byte

110, bit 3 are logic OR’d with hardware RS(1) (pin 7) to

control transmitter operation.

Component Monitoring

Component evaluation is a more casual use of the

AFCT-57D3ATMZ real-time monitors of Tx_Bias, Tx_Power,

Vcc, Temperature and Rx_Power. Potential uses are as

debugging aids for system installation and design, and

transceiver parametric evaluation for factory or field qual-

ification. For example, temperature per module can be

observed in high density applications to facilitate thermal

evaluation of blades, PCI cards and systems.

Transmitter Section

The transmitter section includes the Transmitter Optical

SubAssembly (TOSA) and laser driver circuitry. The TOSA,

containing an 1310nm DFB (Distributed Feedback Laser)

light source, is located at the optical interface and mates

with the LC optical connector. The TOSA is driven by a laser

driver 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 Disable (Tx_Disable)

The AFCT-57D3ATMZ accepts a LVTTL and CMOS com-

patible transmit disable control signal input (pin 3) which

shuts down the transmitter optical output. A high signal

implements this function while a low signal allows normal

transceiver operation. In the event of a fault (e.g. eye safety

circuit 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).

The contents of A2h, byte 110, bit 6 are logic OR’d with

hardware Tx_Disable (pin 3) to control transmitter

operation.

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).

Receiver Section

The receiver section includes the Receiver Optical SubAs-

sembly (ROSA) and the amplification/quantization circuitry.

The ROSA, containing a PIN photodiode and custom tran-

simpedance amplifier, is located at the optical interface

and mates with the LC optical connector. The ROSA output

is fed to a custom IC that provides post-amplification and

quantization.

Receiver Loss of Signal (Rx_LOS)

The post-amplification IC also includes transition detection

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).

Functional Data I/O

The AFCT-57D3ATMZ interfaces with the host circuit

board through twenty I/O pins (SFP electrical connector)

identified by function in Table 2. The board layout for this

interface is depicted in Figure 6.

The AFCT-57D3ATMZ high speed transmit and receive

interfaces require SFP MSA compliant signal lines on

the host board. To simplify board requirements, biasing

resistors and ac coupling capacitors are incorporated into

the SFP transceiver module (per SFF-8074i) and hence are

not required on the host board. The Tx_Disable, Tx_Fault,

and Rx_LOS lines 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).

Figure 2 depicts the recom mended interface circuit to

link the AFCT-57D3ATMZ to supporting physical layer ICs.

Timing for MSA compliant control signals implemented in

the transceiver are listed in Figure 4.

Application Support

An Evaluation Kit and Reference Designs are available to

assist in evaluation of the AFCT-57D3ATMZ. Please contact

your local Field Sales representative for availability and

ordering details.

Caution

There are no user serviceable parts nor maintenance

requirements for the AFCT-57D3ATMZ. All mechanical

adjustments are made at the factory prior to shipment.

Tampering with, modifying, misusing or improperly

handling the AFCT-57D3ATMZ will void the product

warranty. It may also result in improper operation

and possibly overstress the laser source. Performance

degrada tion or device failure may result. Connection of

the AFCT-57D3ATMZ to a light source not compliant with

ANSI FC-PI 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 (Sub-

chapter J) and TUV.

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 Semicon-ductor Products Customer

Response Center at 1-800-235-0312. For information

related to SFF Committee documentation visit www.sffcom-

mittee.org.

Regulatory Compliance

The AFCT-57D3ATMZ complies with all applicable laws

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)

The AFCT-57D3ATMZ 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 circum-

stances.

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 pre-cautions.

These include use of grounded wrist straps, work-benches

and floor wherever a transceiver is handled.

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.

BAUART

GEPRUFT

TYPE

APPROVED

TUV

Rheinland

Product Safety

Electromagnetic Interference (EMI)

Equipment incorporating gigabit transceivers is typically

subject to regulation by the FCC in the United States,

CENELEC EN55022 (CISPR 22) in Europe and VCCI in Japan.

The AFCT-57D3ATMZ’s compliance to these standards is

detailed in Table 1. The metal housing and shielded design

of the AFCT-57D3ATMZ minimizes the EMI challenge

facing the equipment designer.

EMI Immunity (Susceptibility)

Due to its shielded design, the EMI immunity of the

AFCT-57D3ATMZ exceeds typical industry standards.

Flammability

The AFCT-57D3ATMZ optical transceiver is made of metal

and high strength, heat resistant, chemical resistant and

UL 94 flame retardant plastic.

Table 1. Regulatory Compliance

Feature Test Method Performance

Electrostatic Discharge (ESD)

to the Electrical Pins

JEDEC A114 Class 1 (> 2000 V)

>1000 V for high speed signal pins TD ±, RD ±

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 15 kV (min.) contact to

connector without damage.

Electromagnetic Interference

(EMI)

FCC Class B

CENELEC EN55022 Class B

(CISPR 22A)

VCCI Class 1

System margins are dependent on customer

board and chassis design.

Immunity IEC 61000-4-3 Typically shows no measurable effect from

a 10 V/m field swept from 80MHz to 1 GHz

Laser Eye Safety and

Equipment Type Testing

US FDA CDRH AEL Class 1

US21 CFR, Subchapter J per

Paragraphs 1002.10 and 1002.12

(IEC) EN 60950-1: 2006+A11+A1+A12+A2

(IEC) EN 60825-1: 2007

(IEC) EN 60825-2: 2004+A1+A2

CDRH Accession No. 9521220-210

TUV file: E173874

Component Recognition Underwriters Laboratories and Canadian

Standards Association Joint Component

Recognition for Information Technology

Equipment including Electrical Business

Equipment

UL file: 4786550407

RoHS Compliance Less than 1000 ppm of cadmium, lead, mercury,

hexavalent chromium, polybrominated biphenyls,

and polybrominated biphenyl ethers.

Figure 2. Typical application configuration

Figure 3. Recommended power supply filter

Tx EQ

MODULE DETECT

LOSS OF SIGNAL

SCL

SDA

Tx_FAULT

Tx_DISABLE

TD+

Tx FAULT

Tx DIS

TD-

RD+

RD-

MOD_DEF2

MOD_DEF1

MOD_DEF0

GND,R

4.7 k to

10 kΩ50 Ω

50 Ω

4.7 k to 10 kΩ4.7 k to 10 kΩ

PROTOCOL IC

4.7 µH

22 µF

3.3 V

SERDES IC

Rx LOS

0.1 µF

Rx CDR

100 Ω

4.7 k to 10 kΩ

100 Ω

10 kΩ

4.7 k to 10 kΩ

LASER DRIVER

POST AMPLIFIER

Tx Rate Select

Rx Rate Select RS (0)

RS (1)

40 kΩ

4.7 µH

0.1 µF0.1 µF

22 µF 0.1 µF0.1 µF

0.1 µF

4.7 µH

0.1 µF

VCC R

SFP MODULE

22 µF

VCC T

0.1 µF

3.3 V

HOST BOARD

0.1 µF

NOTE: INDUCTORS MUST HAVE LESS THAN 1Ω SERIES RESISTANCE TO LIMIT VOLTAGE DROP TO THE SFP MODULE.

22 µF

Notes:

1. TX_FAULT is an open collector/drain output, which must be pulled up with a 4.7 k – 10 kΩ resistor on the host board. When high, this output indi-

cates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8 V.

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 6.8 kΩ

resistor.

Low (0 – 0.8 V): Transmitter on

Between (0.8 V and 2.0 V): Undefined

High (2.0 – Vcc max) or OPEN: Transmitter Disabled

3. The signals Mod-Def 0, 1, 2 designate the two wire serial interface pins. They must be pulled up with a 4.7 k – 10 kΩ 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 4.7 k – 10 kΩ 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 < 0.8 V.

5. RD-/+ designate the differential receiver outputs. They are AC coupled 100 Ω differential lines which should be terminated with 100 Ω 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 Ω 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

- 600 mV single ended)

8. RS(1) is an input used to control transmitter maximum optical power for multiple rates. It is internally pulled down with a >30kOhm resistor.

Low (0 - 0.8V) or OPEN: Low Bit Rate Compatibility per (2.125 Gb/s and 4.25 Gb/s)

Between (0.8V and 2.0V): Undefined

High (2.0 - Vcc): High Bit Rate Compatibility (8.5 Gb/s)

9. Rate_Select is an input that is used to control transmit and receive high speed parametric optimizaton. It is internally pulled down (within the

transceiver) with a >30kOhm resistor. Low (0 - 0.8V) or Open: Rate is set to 4.25 Gb/s and below optimization. Between (0.8V and 2.0V) Undefined

High (2.0 - Vcc max): Rate is set to 8.5 Gb/s optimization.

Table 2. Pin Description

Pin Name Function/Description Notes

1 VeeT Transmitter Ground

2 TX_FAULT Transmitter Fault Indication – High indicates a fault condition Note 1

3 TX_DISABLE Transmitter Disable – Module electrical input disables on high or open Note 2

4 MOD-DEF2 Module Definition 2 – Two wire serial ID interface data line (SDA) Note 3

5 MOD-DEF1 Module Definition 1 – Two wire serial ID interface clock line (SCL) Note 3

6 MOD-DEF0 Module Definition 0 – Grounded in module (module present indicator) Note 3

7 RS(0) Rx Rate Select Parametric Optimization Note 9

8 RX_LOS Receiver Loss of Signal (LVTTL-O) Note 4

9 RS(1) Tx Rate Select Parametric Optimization Note 8

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 Note 6

16 VccT Transmitter Power +3.3 V 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

Table 3. Absolute Maximum Ratings

Parameter Symbol Minimum Maximum Unit Notes

Storage Temperature TS -40 85 C Note 1, 2

Case Operating Temperature TC -40 85 C Note 1, 2

Relative Humidity RH 5 95 % Note 1, 4

Supply Voltage VccT, R -0.5 3.8 V Note 1, 2, 3

Low Speed Input Voltage VIN -0.5 Vcc+0.5 V Note 1

Notes:

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, VCCT and VCCR must not differ by more than 0.5 V or damage to the device may occur.

4. Exposure to a condensing environment is not allowed.

Table 4. Recommended Operating Conditions

Parameter Symbol Minimum Maximum Unit Notes

Case Operating Temperature TC -10 85 °C Note 1, 2

Supply Voltage VccT, R 2.97 3.63 V Note 2

Data Rate 2.125 8.5 Gb/s Note 2

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

(TC = -10°C to 85°C, VccT, VccR = 3.3 V ±10%)

Parameter Symbol Minimum Typical Maximum Unit Notes

AC Electrical Characteristics

Power Supply Noise Rejection (peak-peak) PSNR 100 mV Note 1

DC Electrical Characteristics

Module Supply Current ICC 350 mA @ 85°C mA

Low Speed Outputs: VOH 2.0 VccT,R+0.3 V Note 2

Transmit Fault (TX_FAULT), Loss of Signal VOL 0.8 V

(RX_LOS), MOD-DEF 2

Low Speed Inputs: VIH 2.0 Vcc V Note 3

Transmit Disable (TX_DIS), MOD-DEF 1, VIL 0 0.8 V

MOD-DEF2, RS(1)

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 4.7 k – 10 kΩ resistor on the host board to 3.3 V.

3. Mod-Def1 and Mod-Def2 must be pulled up externally with a 4.7 k – 10 kΩ resistor on the host board to 3.3 V.

Table 6. Transmitter and Receiver Electrical Characteristics

(TC = -10°C to 85°C, VccT, VccR = 3.3 V ±10%)

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: Vo 370 850 mV Note 2

Receiver Differential Output Voltage (RD +/-)

Receiver Total Jitter (8.5 Gb/s) TJ 0.71 UI Note 3

Receiver Total Jitter (4.25 Gb/s) TJ 0.64 UI Note 3

Receiver Total Jitter (2.125 Gb/s) TJ 0.64 UI Note 3

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 50% threshold and K28.5 pattern. Contributed TJ is the sum of contrib-

uted RJ and contributed DJ. Contributed RJ is calculated for 1x10-12 BER by multiplying the RMS jitter (measured on a single rise or fall edge)

from the oscilloscope by 14. Per FC-PI-4 (Table 13 - MM 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-4 maxi-

mum limits with the worst case specified component jitter input.

Table 7. Transmitter Optical Characteristics

(TC = -10°C to 85°C, VccT, VccR = 3.3V ±10%)

Parameter Symbol Minimum Typical Maximum Unit Notes

Modulated Optical Output Power (OMA) Tx,OMA 290 µW

(Peak-to-Peak)

Average Optical Output Power Pout -8.4 +0.5 dBm Note 1,2,4

-8.4 -3.0 dBm Note 1,2,5

Center Wavelength lC 1260 1360 nm

-20 dB Spectral Width 1.0 nm

Side Mode Suppression 30 dB

RIN 12 (OMA) RIN -128 dB/Hz

Transmitter Total Jitter (4.25 Gb/s) TJ 0.44 UI Note 3

Transmitter Total Jitter (2.125 Gb/s) TJ 0.44 UI Note 3

Pout TX_DISABLE Asserted POFF -35 dBm

Notes:

1. Max Pout is the lesser of Class 1 safety limits (CDRH and EN 60825) or receiver power, max.

2. Into single-mode optical fiber.

3. DJ is measured on an oscilloscope in average mode with 50% threshold and K28.5 pattern. TJ is the sum of RJ and DJ. RJ is calculated for 1x10-12

BER by multiplying the RMS jitter (measured on a single rise or fall edge) from the oscilloscope by 14. Per FC-PI-4 (Table 13 - MM jitter output,

note 1), the actual RJ is allowed to increase above its limit if the actual DJ decreases below its limits, as long as the component output DJ and TJ

remain within their specified FC-PI-4 maximum limits with the worst case specified component jitter input.

4. Rate Select RS(1) in high state.

5. Rate Select RS(1) in low state.

Table 8. Receiver Optical Characteristics

(TC = -10°C to 85°C, VccT, VccR = 3.3 V ±10%)

Parameter Symbol Min. Typ. Max. Unit Notes

Input Optical Power [Overdrive] PIN +0.5 dBm, avg Note 1

Input Optical Modulation Amplitude OMA 42 µW, OMA Note 2

(Peak-to-Peak) 8.5 Gb/s [Sensitivity]

Input Optical Modulation Amplitude OMA 29 µW, OMA Note 2

(Peak-to-Peak) 4.25 Gb/s [Sensitivity]

Input Optical Modulation Amplitude OMA 15 µW, OMA Note 2

(Peak-to-Peak) 2.125 Gb/s [Sensitivity]

Return Loss 12 dB

Loss of Signal – Assert PA -30 dBm, avg Note 3

Loss of Signal - De-Assert PD -16 dBm, OMA Note 3

Loss of Signal Hysteresis PD - PA 0.5 dB

Notes:

1. Maximum input optical power for 8.5Gb/s is +0.5dBm, for 4.25Gb/s is -1.0dBm and for 2.125Gb/s is -3.0dBm per ANSI T11 FC-PI-4.

2. Input Optical Modulation Amplitude (commonly known as sensitivity) requires a valid 8B/10B encoded input.

3. These average power values are specified with an Extinction Ratio of 6 dB. The loss of signal circuitry responds to valid 8B/10B encoded peak to

peak input optical power (OMA), rather than average power.

Table 9. Transceiver DIAGNOSTIC Timing Characteristics

(TC = -10°C to 85°C, VccT, VccR = 3.3 V ±10%)

Parameter Symbol Minimum Maximum Unit Notes

Hardware TX_DISABLE Assert Time t_off 10 µs 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 1000 µs Note 4

Hardware TX_DISABLE to Reset t_reset 10 µs Note 5

Hardware RX_LOS Deassert Time t_loss_on 100 µs Note 6

Hardware RX_LOS Assert Time t_loss_off 100 µs Note 7

Hardware Rate Select Assert Time t_rate_high 0.5 ms Note 17

Hardware Rate Select Deassert Time t_rate_low 0.5 ms Note 17

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 Deassert 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

Serial Bus Buffer Time t_buf 20 µs Note 16

Complete Single or Sequential Write up to 4 Byte t_write 40 ms Note 15

Complete Sequential Write of 5 – 8 Byte t_write 80 ms Note 15

Serial ID Clock Rate f_serial_clock 400 kHz

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 nomi-

nal.

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. Operation of the Two Wire Serial Interface at rates beyond 100 kHz requires the use of clock stretching techniques.

16. Time between STOP and START Commands.

17. Time from rising or falling edge of Rate Select input until transceiver is in conformance with appropriate specification.

Table 10. Transceiver Digital Diagnostic Monitor (Real Time Sense) Characteristics

(TC = -10°C to 85°C, VccT, VccR = 3.3 V ±10%)

Parameter Symbol Min. Units Notes

Transceiver Internal Temperature TINT ±3.0 °C Temperature is measured internal to the transceiver.

Accuracy Valid from = -10°C to 85°C case temperature.

Transceiver Internal Supply VINT ±0.1 V Supply voltage is measured internal to the transceiver

Voltage Accuracy and can, with less accuracy, be correlated to

voltage at the SFP Vcc pin. Valid over 3.3 V ± 10%.

Transmitter Laser DC Bias Current IINT ±10 % IINT is better than ±10% of the nominal value.

Accuracy

Transmitted Average Optical PT ±3.0 dB Coupled into single-mode fiber. Valid from

Output Power Accuracy 144 µW to 1122 µW, avg.

Received Average Optical Input PR ±3.0 dB Coupled from single-mode fiber. Valid from

Power Accuracy 12 µW to 1122 µW, avg.

Figure 4. Transceiver timing diagrams (module installed except where noted).

TX_FAULT

OCCURANCE OF FAULT

t_fault

TX_DISABLE

TRANSMITTED SIGNAL

TX_FAULT

OCCURANCE OF FAULT

TX_DISABLE

TRANSMITTED SIGNAL

t-fault: TX FAULT ASSERTED, TX SIGNAL NOT RECOVERED t-reset: TX DISABLE ASSERTED THEN NEGATED, TX SIGNAL RECOVERED

t_reset t_init*

* SFP SHALL CLEAR TX_FAULT IN

< t_init IF THE FAILURE IS TRANSIENT

TX_FAULT

OCCURANCE OF FAULT

t_fault

TX_DISABLE

TRANSMITTED SIGNAL

OPTICAL SIGNAL

LOS

t-fault: TX DISABLE ASSERTED THEN NEGATED, TX SIGNAL NOT RECOVERED t-loss-on & t-loss-off

t_loss_on

t_init*

t_reset

* SFP SHALL CLEAR TX_FAULT IN

< t_init IF THE FAILURE IS TRANSIENT

t_loss_off

OCCURANCE

OF LOSS

TX_FAULT

T,R > 2.97 V

t_init

TX_DISABLE

TRANSMITTED SIGNAL

t_init

TX_FAULT

T,R > 2.97 V

TX_DISABLE

TRANSMITTED SIGNAL

t-init: TX DISABLE NEGATED t-init: TX DISABLE ASSERTED

TX_FAULT

T,R > 2.97 V

t_init

TX_DISABLE

TRANSMITTED SIGNAL

t_off

TX_FAULT

TX_DISABLE

TRANSMITTED SIGNAL

t-init: TX DISABLE NEGATED, MODULE HOT PLUGGED t-off & t-on: TX DISABLE ASSERTED THEN NEGATED

INSERTION

t_on

Table 11. EEPROM Serial ID Memory Contents – Conventional SFP Memory (Address A0h)

Byte #

Decimal

Data

Hex Notes

Byte #

Decimal

Data

Hex Notes

0 03 SFP physical device 36 00

1 04 SFP function defined by serial ID only 37 00 Hex Byte of Vendor OUI [2]

2 07 LC optical connector 38 17 Hex Byte of Vendor OUI [2]

3 00 39 6A Hex Byte of Vendor OUI [2]

4 00 40 41 “A” - Vendor Part Number ASCII character

5 00 41 46 “F” - Vendor Part Number ASCII character

6 00 42 43 “C” - Vendor Part Number ASCII character

7 12 Long distance (per FC-PI-4), Longwave Laser

(LC)

43 54 “T” - Vendor Part Number ASCII character

8 00 44 2D “-” - Vendor Part Number ASCII character

9 01 Single-mode (SM) 45 35 “5” - Vendor Part Number ASCII character

10 54 200, 400 & 800 Mbytes/sec FC-PI-4 speed[1] 46 37 “7” - Vendor Part Number ASCII character

11 01 Compatible with 8B/10B encoded data 47 44 “D” - Vendor Part Number ASCII character

12 55 8500 MBit/sec nominal bit rate (8.5 Gbit/s) 48 33 “3” - Vendor Part Number ASCII character

13 06 8GFC Rx & Tx Rate_Select 49 41 “A” - Vendor Part Number ASCII character

14 0A 10km of single-mode fiber 50 54 “T” - Vendor Part Number ASCII character

15 64 10km of single-mode fiber 51 4D “M” - Vendor Part Number ASCII character

16 00 52 5A “Z” - Vendor Part Number ASCII character

17 00 53 20 “ ” - Vendor Part Number ASCII character

18 00 54 20 “ ” - Vendor Part Number ASCII character

19 00 55 20 “ ” - Vendor Part Number ASCII character

20 41 “A” - Vendor Name ASCII character 56-59 Vendor Revision Number

21 56 “V” - Vendor Name ASCII character 60 05 Hex Byte of Laser Wavelength [3]

22 41 “A” - Vendor Name ASCII character 61 1E Hex Byte of Laser Wavelength [3]

23 47 “G” - Vendor Name ASCII character 62 00

24 4F “O” - Vendor Name ASCII character 63 Checksum for Bytes 0-62 [4]

25 20 “ ” - Vendor Name ASCII character 64 00 Receiver limiting output. 1 Watt power class.

26 20 “ ” - Vendor Name ASCII character 65 3A Hardware SFP TX_DISABLE, TX_FAULT, RX_LOS

27 20 “ ” - Vendor Name ASCII character & RATE_SELECT

28 20 “ ” - Vendor Name ASCII character 66 00

67 00

29 20 “ ” - Vendor Name ASCII character 68-83 Vendor Serial Number ASCII characters [5]

30 20 “ ” - Vendor Name ASCII character 84-91 Vendor Date Code ASCII characters [6]

31 20 “ ” - Vendor Name ASCII character 92 68 Digital Diagnostics, Internal Cal, Rx Pwr Avg

32 20 “ ” - Vendor Name ASCII character 93 FA A/W, Soft TX_DISABLE, TX_FAULT, RX_LOS

& RATE_SELECT

33 20 “ ” - Vendor Name ASCII character 94 05 SFF-8472 Compliance to revision 11.0

34 20 “ ” - Vendor Name ASCII character 95 Checksum for Bytes 64-94[5]

35 20 “ ” - Vendor Name ASCII character 96 - 255 00

Notes:

1. FC-PI speed 800 MBytes/sec is a serial bit rate of 8.5 Gbit/sec. 200 MBytes/sec is a serial bit rate of 2.125 GBit/sec. 400 MBytes/sec is a serial bit rate

of 4.25 GBit/sec.

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-57D3ATMZ ASCII serial number and will vary on a per unit basis.

6. Addresses 84-91 specify the AFCT-57D3ATMZ ASCII date code and will vary on a per date code basis.

Table 12. EEPROM Serial ID Memory Contents – Enhanced Feature Set Memory (Address A2h)

Byte # Byte # Byte #

Decimal Notes Decimal Notes Decimal Notes

0 Temp H Alarm MSB[1] 26 Tx Pwr L Alarm MSB[4] 104 Real Time Rx Pwr MSB [5]

1 Temp H Alarm LSB[1] 27 Tx Pwr L Alarm LSB[4] 105 Real Time Rx Pwr LSB [5]

2 Temp L Alarm MSB[1] 28 Tx Pwr H Warning MSB[4] 106 Reserved

3 Temp L Alarm LSB[1] 29 Tx Pwr H Warning LSB[4] 107 Reserved

4 Temp H Warning MSB[1] 30 Tx Pwr L Warning MSB[4] 108 Reserved

5 Temp H Warning LSB[1] 31 Tx Pwr L Warning LSB[4] 109 Reserved

6 Temp L Warning MSB[1] 32 Rx Pwr H Alarm MSB[5] 110 Status/Control

- See Table 13

7 Temp L Warning LSB[1] 33 Rx Pwr H Alarm LSB[5] 111 Reserved

8 Vcc H Alarm MSB[2] 34 Rx Pwr L Alarm MSB[5] 112 Flag Bits - See Table 14

9 Vcc H Alarm LSB[2] 35 Rx Pwr L Alarm LSB[5] 113 Flag Bits - See Table 14

10 Vcc L Alarm MSB[2] 36 Rx Pwr H Warning MSB[5] 114 Reserved

11 Vcc L Alarm LSB[2] 37 Rx Pwr H Warning LSB[5] 115 Reserved

12 Vcc H Warning MSB[2] 38 Rx Pwr L Warning MSB[5] 116 Flag Bits - See Table 14

13 Vcc H Warning LSB[2] 39 Rx Pwr L Warning LSB[5] 117 Flag Bits - See Table 14

14 Vcc L Warning MSB[2] 40-55 Reserved 118 Status/Control

- See Table 15

15 Vcc L Warning LSB[2] 56-94 External Calibration Constants[6] 119-127 Reserved

16 Tx Bias H Alarm MSB[3] 95 Checksum for Bytes 0-94[7] 128-247 Customer Writeable

17 Tx Bias H Alarm LSB[3] 96 Real Time Temperature MSB[1] 248-255 Vendor Specific

18 Tx Bias L Alarm MSB[3] 97 Real Time Temperature LSB[1]

19 Tx Bias L Alarm LSB[3] 98 Real Time Vcc MSB[2]

20 Tx Bias H Warning MSB[3] 99 Real Time Vcc LS[2]

21 Tx Bias H Warning LSB[3] 100 Real Time Tx Bias MSB[3]

22 Tx Bias L Warning MSB[3] 101 Real Time Tx Bias LSB[3]

23 Tx Bias L Warning LSB[3] 102 Real Time Tx Power MSB[4]

24 Tx Pwr H Alarm MSB[4] 103 Real Time Tx Power LSB[4]

25 Tx Pwr H Alarm LSB[4]

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 56-94 are not intended for use with AFCT-57D3ATMZ, 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.

Table 14. EEPROM Serial ID Memory Contents – Alarms and Warnings (Address A2h, Bytes 112, 113, 116, 117)

Byte Bit Flag Bit Name Description

112 7 Temp High Alarm Set when transceiver internal temperature exceeds high alarm threshold

6 Temp Low Alarm Set when transceiver internal temperature exceeds low 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

113 7 Rx Power High Alarm Set when received average optical power exceeds high alarm threshold

6 Rx Power Low Alarm Set when received average optical power exceeds low alarm threshold

0-5 Reserved

116 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

117 7 Rx Power High Warning Set when received average optical power exceeds high warning threshold

6 Rx Power Low Warning Set when received average optical power exceeds low warning threshold

0-5 Reserved

Table 13. EEPROM Serial ID Memory Contents – Soft Commands (Address A2h, Byte 110)

Bit # Status/Control Name Description Notes

7 TX_DISABLE State Digital state of TX_DISABLE Input Pin (1 = TX_DISABLE asserted) Note 1

6Soft TX_DISABLE Control Read/write bit for changing digital state of TX_DISABLE function Note 1, 2

5 RS(1) State Digital state of TX Rate_Select Input Pin RS(1) (1 = Rate High asserted)

4 RS(0) State Digital state of RX Rate_Select Input Pin RS(0) (1 = Rate High asserted)

3 Soft RS(0) Control Read/write bit for changing digital state of Rx Rate_Select RS(0) function Note 3

2 TX_FAULT State Digital state of TX_FAULT Output Pin (1 = TX_FAULT asserted) Note 1

1 RX_LOS State Digital state of SFP RX_LOS Output Pin (1 = RX_LOS asserted) Note 1

0 Data Ready (Bar) Indicates transceiver is powered and real time sense data is ready

(0 = Data Ready)

Notes:

1. The response time for soft commands of the AFCT-57D3ATMZ is 100 ms as specified by 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.

3. Bit 3 is logic OR’d with the SFP RS(0) RX Rate_Select input pin 7 …. either asserted will set receiver to Rate = High.

0.77 UNCOMPRESSED .- E 3‘ 713‘65 oooooooooooo

For product information and a complete list of distributors, please go to our website: www.avagotech.com

Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries.

AV02-4647EN - December 16, 2014

Customer Manufacturing Processes

This module is pluggable and is not designed for aqueous wash, IR reflow, or wave soldering processes.

Figure 5. Module drawing.

Table 15. EEPROM Expanded Serial ID Memory Contents - Soft Command (Address A2h, Byte 118)

Bit # Status/Control Name Description Notes

7-4 Reserved

3 Soft RS(1) Control Read/write bit for changing digital state of RS(1) Tx Rate Select function 1, 2

2 Reserved

1 Power Level State Always set to zero. Value of zero indicates Power Level 1 operation (1 W max.)

0 Power Level Select Unused

Notes:

1. AFCT-57D3ATMZ Tx optical power is optimized for 2.125 Gb/s and 4.25 Gb/s performance when RS(1) is low and for 8.5 Gb/s performance when

high.

2. Bit 3 is logic OR’d with the SFP RS(1) TX Rate_Select input pin 9. Either asserted will set transmitter to Rate = High.

13.65

13.46

8.55

12.95

0.77 UNCOMPRESSED

13.9

8.9 47.5

6.25

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