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Home > Products > Optoelectronics > Fiber Optic Transceiver Modules

Broadcom Limited AFBR-57H5MZ

Name: AFBR-57H5MZ
Brand: Broadcom Limited
SKU: AFBR-57H5MZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AFBR-57H5MZ

Manufacturer:: Broadcom Limited

Category:: Fiber Optic Transceiver Modules

Package:

Datasheet:: AFBR-57H5MZ.pdf

Description:: 64SF01 64GFC SFP56 SW 100M

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Product details

Overview

AFBR-57H5MZ from Broadcom is a digital diagnostic SFP56 optical transceiver for multi-mode fiber, supporting 64GFC (57.8 Gb/s PAM4), 32GFC (28.05 Gb/s NRZ), and 16GFC (14.025 Gb/s NRZ) Fibre Channel protocols. It integrates CDRs on both Tx and Rx paths, features real-time DMI per SFF-8472, and uses an 850-nm VCSEL/PiN architecture in an SFP+ mechanical form factor compliant with SFF-8432.

For engineers reviewing the AFBR-57H5MZ datasheet, pinout, applications, or equivalent options, this transceiver is selected for high-reliability Fibre Channel infrastructure requiring multi-rate interoperability, embedded diagnostics, adaptive equalization, and I2C-configurable OWRAP/EWRAP loopback functions in 0°C to 75°C operation.

Technical Context

The AFBR-57H5MZ implements dual-rate-select hardware pins (RS(0), RS(1)) and I2C-controlled register bits (A2h byte 119) to configure 16G/32G/64G Fibre Channel modes - with 64GFC mode overriding pin settings when bit 2 is asserted. Its transmitter includes adaptive input EQ (no host control) and programmable output emphasis; receiver includes variable post-amplifier emphasis and integrated PRBS generator/bit error rate checker on both line and system sides.

It embeds two independent CDRs - one on Tx path and one on Rx path - locked at 57.8 Gb/s PAM4 (64GFC), 28.05 Gb/s NRZ (32GFC), or 14.025 Gb/s NRZ (16GFC). Diagnostic monitoring covers temperature, supply voltage, laser bias current, TX/RX optical power, and power-on hours via SFF-8431 I2C interface, fully compliant with SFF-8472.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	57.8 Gb/s PAM4 (64GFC), 28.05 Gb/s NRZ (32GFC), 14.025 Gb/s NRZ (16GFC) - supports multi-rate FC-PI-7/6/5 compliance with FEC selection per standard.
Wavelength	840–860 nm - optimized for OM3/OM4 multi-mode fiber with encircled flux meeting IEC 61280-1-4 Type A1a.2.
Optical Power (Tx)	–7.5 to +4.0 dBm average launch - Class 1 eye-safe per IEC 60825-1 and CDRH, with OMAouter ≥ –4.5 dBm in 64GFC mode.
Receiver Sensitivity	–7.0 dBm OMAouter (64GFC), –10.2 dBm OMA (32GFC), –10.5 dBm OMA (16GFC) - enables >100 m reach over OM4 fiber at all rates.
Power Consumption	≤1.65 W at 3.3 V - meets SFP56 thermal envelope constraints for dense switch port configurations.
Operating Temperature	0°C to 75°C case temperature - validated for enterprise storage and data center switch environments without forced airflow.
Diagnostics Interface	SFF-8472-compliant I2C (MOD_SCL/MOD_SDA) - provides real-time readout of TX bias, RX power, temperature, voltage, and power-on hours.

Pinout & Package

SFP56 form factor per SFF-8432, LC duplex optical interface per ANSI TIA/EIA-604-10 (FOCIS 10A), 20-pin edge connector with gold-plated contacts.

Pin/Terminal	Circuit Role	Design Meaning
1, 17, 20	VeeT	Transmitter ground reference - three dedicated low-inductance return paths for high-speed Tx signal integrity.
2	TX_FAULT	Open-drain fault indicator - pulled high externally; asserts high on laser fault, enabling host fail-safe shutdown.
3	TX_DISABLE	Transmitter enable/disable input - internally pulled up; logic high or open disables optical output per SFF-8419.
4, 5	MOD_SDA / MOD_SCL	I2C bidirectional data/clock - used for DMI access, rate configuration, and PRBS/EWRAP/OWRAP control per SFF-8472/SFF-8431.
6	MOD_ABS	Module presence detection - grounded internally to signal hot-plug insertion to host controller.
7, 9	RS(0), RS(1)	Hardware rate select inputs - configure 16G/32G/64G mode alongside I2C registers; internally pulled down (RS0) or up (RS1).
8	RX_LOS	Open-drain loss-of-signal indicator - pulled high externally; asserts high when received optical power falls below –30 dBm avg.
12, 13	RD–, RD+	Differential receiver outputs - AC-coupled 100 Ω lines terminated internally; require 100 Ω differential termination at host SerDes.
15, 16	VccR, VccT	+3.3 V receiver/transmitter supplies - separate rails minimize crosstalk; each requires local 22 µF + 0.1 µF decoupling per datasheet Figure 9.
18, 19	TD+, TD–	Differential transmitter inputs - AC-coupled 100 Ω lines with internal termination; no external coupling required on host board.

Key Features

Feature	Design Value
Multi-rate CDR architecture	Independent Tx and Rx CDRs lock at 57.8 Gb/s PAM4, 28.05 Gb/s NRZ, or 14.025 Gb/s NRZ - eliminates jitter accumulation across host ASIC, PCB, and connector.
Adaptive input EQ + programmable output emphasis	Tx input EQ adjusts automatically to channel loss; Rx output emphasis is I2C-tunable - enables robust link margin optimization without host firmware changes.
Integrated PRBS generator & BER checker	Generates PRBS patterns (TP1/TP4) and measures BER every 5 s - supports in-system link validation between two SFPs or host ASIC and transceiver.
OWRAP/EWRAP loopback modes	Optical wrap (CDR → retransmit optically) and electrical wrap (CDR → retransmit electrically) - enabled via I2C for remote diagnostics and interconnect tuning.
SFF-8472 digital diagnostics	Real-time monitoring of TX bias current, RX optical power, temperature, supply voltage, and power-on hours - enables predictive maintenance and thermal derating.

Applications

Fibre Channel Switch Port	Fibre Channel HBA
Use Scenario: High-density 64GFC line cards in enterprise SAN switches connecting to storage arrays and servers. IC Role / Device Role / Timing Role: Optical interface transceiver providing protocol-transparent serial link layer conversion between switch ASIC and multi-mode fiber. Use Value: Enables 100 m OM4 reach at 64GFC with built-in DMI for port health telemetry and adaptive EQ to compensate for aging PCB traces.	Use Scenario: Host bus adapter card in Fibre Channel storage servers requiring hot-pluggable, standards-compliant optical connectivity. IC Role / Device Role / Timing Role: Pluggable SFP56 module handling physical layer serialization/deserialization and optical-electrical conversion. Use Value: Supports seamless rate negotiation (16/32/64GFC) via hardware pins and I2C, reducing driver complexity and enabling backward compatibility.
RAID Controller Interconnect	Inter-Switch Aggregated Link
Use Scenario: Direct-attached RAID enclosures using Fibre Channel for high-throughput block storage with low-latency deterministic timing. IC Role / Device Role / Timing Role: Low-jitter transceiver with CDRs ensuring clean clock recovery for synchronous storage command/response cycles. Use Value: Maintains <0.03 UI uncorrelated jitter at 14.025 Gb/s (16GFC) - critical for maintaining sub-microsecond latency in RAID stripe operations.	Use Scenario: Multi-lane trunking between core and edge Fibre Channel switches using aggregated SFP56 ports. IC Role / Device Role / Timing Role: High-reliability pluggable optics enabling synchronized multi-port link training and FEC coordination. Use Value: Integrated EWRAP allows per-port electrical loopback testing without external test equipment - accelerating deployment validation.

Fibre Channel Switch Port

Fibre Channel HBA

Use Scenario: High-density 64GFC line cards in enterprise SAN switches connecting to storage arrays and servers.

IC Role / Device Role / Timing Role: Optical interface transceiver providing protocol-transparent serial link layer conversion between switch ASIC and multi-mode fiber.

Use Value: Enables 100 m OM4 reach at 64GFC with built-in DMI for port health telemetry and adaptive EQ to compensate for aging PCB traces.

Use Scenario: Host bus adapter card in Fibre Channel storage servers requiring hot-pluggable, standards-compliant optical connectivity.

IC Role / Device Role / Timing Role: Pluggable SFP56 module handling physical layer serialization/deserialization and optical-electrical conversion.

Use Value: Supports seamless rate negotiation (16/32/64GFC) via hardware pins and I2C, reducing driver complexity and enabling backward compatibility.

RAID Controller Interconnect

Inter-Switch Aggregated Link

Use Scenario: Direct-attached RAID enclosures using Fibre Channel for high-throughput block storage with low-latency deterministic timing.

IC Role / Device Role / Timing Role: Low-jitter transceiver with CDRs ensuring clean clock recovery for synchronous storage command/response cycles.

Use Value: Maintains <0.03 UI uncorrelated jitter at 14.025 Gb/s (16GFC) - critical for maintaining sub-microsecond latency in RAID stripe operations.

Use Scenario: Multi-lane trunking between core and edge Fibre Channel switches using aggregated SFP56 ports.

IC Role / Device Role / Timing Role: High-reliability pluggable optics enabling synchronized multi-port link training and FEC coordination.

Use Value: Integrated EWRAP allows per-port electrical loopback testing without external test equipment - accelerating deployment validation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Fibre Channel transceiver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AFBR-57H5PZ	Same SFP56 form factor and 64GFC/32GFC/16GFC support, but lacks integrated PRBS generator and BER checker; no OWRAP/EWRAP capability.	Targeted at cost-sensitive FC switch line cards where in-system diagnostics are handled externally.	Select AFBR-57H5PZ only if full self-test functionality is not required and BOM cost reduction is prioritized over field-serviceability.
QSA-64G-SR	QSFP28-based 64GFC transceiver (4×16G lanes), not SFP56; supports only 64GFC PAM4, no 32G/16G NRZ fallback; different mechanical footprint and pinout.	Used in QSFP28-switch platforms requiring higher port density; incompatible with SFP56 host sockets.	Choose QSA-64G-SR only for QSFP28-native systems; AFBR-57H5MZ is mandatory for SFP56 socket compatibility and multi-rate flexibility.

Compared with AFBR-57H5PZ and QSA-64G-SR, the AFBR-57H5MZ uniquely delivers SFP56-compatible multi-rate Fibre Channel operation with on-board PRBS/BER, OWRAP/EWRAP, and full SFF-8472 diagnostics - making it the only option for field-upgradable, self-diagnosing 16/32/64GFC links in legacy SFP+ infrastructure.

Availability

AFBR-57H5MZ is available at Aetrix Electronics and suitable for Fibre Channel switch design, storage HBA integration, and RAID controller interconnects requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.

Supply support for AFBR-57H5MZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Broadcom Inc. is a global semiconductor leader specializing in infrastructure software, networking, and optical interconnect solutions for data centers, enterprise storage, and telecommunications.

The AFBR-57H5MZ belongs to Broadcom's Fibre Channel SFP56 transceiver product line, engineered specifically for high-availability storage area networks demanding multi-rate interoperability, embedded diagnostics, and Class 1 laser safety in compact pluggable form factors.

FAQ

What data rates and modulation formats does the AFBR-57H5MZ support?

The AFBR-57H5MZ supports 64GFC at 57.8 Gb/s PAM4 with RS(544,514) FEC, 32GFC at 28.05 Gb/s NRZ with RS(528,514) FEC, and 16GFC at 14.025 Gb/s NRZ without FEC. All modes are implemented via hardware rate select pins and I2C register control, with CDRs locked to the respective signaling rate and encoding scheme. The AFBR-57H5MZ maintains full FC-PI-7/6/5 compliance across all three modes.

How does the AFBR-57H5MZ implement digital diagnostics, and what parameters are monitored?

The AFBR-57H5MZ implements SFF-8472-compliant digital diagnostics via its MOD_SCL and MOD_SDA pins, providing real-time readout of transmitter average optical power, received average optical power, laser bias current, case temperature, supply voltage, and power-on hours. These values are accessible through standard I2C commands to address A2h, enabling host-side health monitoring and predictive maintenance without external sensors. The AFBR-57H5MZ reports all diagnostics in calibrated units with defined accuracy per the datasheet.

Does the AFBR-57H5MZ support loopback testing, and how is it configured?

Yes, the AFBR-57H5MZ supports both optical wrap (OWRAP) and electrical wrap (EWRAP) loopback modes, controlled via I2C registers in address A2h. OWRAP routes the received optical signal through the Rx CDR and retransmits it optically; EWRAP routes the incoming electrical signal through the Tx CDR and retransmits it electrically. Both modes are configurable per-port and enable in-system link validation without external test gear. The AFBR-57H5MZ also includes a programmable PRBS generator and BER checker for quantitative performance assessment.

What is the operating temperature range and power consumption of the AFBR-57H5MZ?

The AFBR-57H5MZ operates from 0°C to 75°C case temperature and consumes ≤1.65 W at 3.3 V under maximum 64GFC load. Its thermal design meets SFP56 specifications for passive cooling in high-density switch chassis, with validated performance across the full temperature range including jitter, sensitivity, and extinction ratio. Power supply noise rejection is specified at 66 mV peak-to-peak, requiring host board filtering per SFF-8419. The AFBR-57H5MZ includes internal thermal monitoring accessible via SFF-8472.

Is the AFBR-57H5MZ compatible with existing SFP+ host systems?

Yes, the AFBR-57H5MZ complies with SFF-8432 mechanical specifications and SFF-8419 low-speed electrical interface definitions, making it physically and electrically compatible with standard SFP+ sockets. It uses the same 20-pin edge connector, LC duplex optical interface, and I2C management interface. However, host firmware must support SFF-8472 DMI and FC-PI-7 rate negotiation - the AFBR-57H5MZ will not operate at 64GFC unless the host explicitly enables PAM4 mode via I2C register A2h byte 119 bit 2.

AFBR-57H5MZ Specifications

Product attributes: Attribute value

Manufacturer:: Broadcom Limited

Series:: AFBR

Packaging:: Tray

Product Status:: Active

Data Rate:: 57.8Gbps

Wavelength:: 850nm

Applications:: Fibre Channel Links

Voltage - Supply:: 3.1V ~ 3.5V

Connector Type:: LC Duplex

Mounting Type:: Pluggable, SFP56

AFBR-57H5MZ FAQ

1.How can I place an order for AFBR-57H5MZ through Aetrix?

Please submit a Request for Quotation (RFQ) for AFBR-57H5MZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AFBR-57H5MZ reliable?

The price and inventory of AFBR-57H5MZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AFBR-57H5MZ is usually 5 days.

3.What payment methods are accepted for AFBR-57H5MZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AFBR-57H5MZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AFBR-57H5MZ?

AFBR-57H5MZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AFBR-57H5MZ order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AFBR-57H5MZ?

For technical support, including AFBR-57H5MZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AFBR-57H5MZ requirements.

6.How does Aetrix verify that AFBR-57H5MZ is sourced from the original manufacturer or authorized distributors?

All AFBR-57H5MZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AFBR-57H5MZ meets industry standards.

7.What is the process for return or replacement of AFBR-57H5MZ?

All AFBR-57H5MZ units undergo pre-shipment inspection (PSI). If there is an issue with AFBR-57H5MZ, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AFBR-57H5MZ part is unused and in its original packaging.

Return procedure for AFBR-57H5MZ:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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