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Home > Products > Optoelectronics > Fiber Optic Transceiver Modules

Broadcom Limited AFBR-5705APZ

Name: AFBR-5705APZ
Brand: Broadcom Limited
SKU: AFBR-5705APZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AFBR-5705APZ

Manufacturer:: Broadcom Limited

Category:: Fiber Optic Transceiver Modules

Package:

Datasheet:: AFBR-5705APZ.pdf

Description:: TXRX OPTICAL SFP DMI IND BAIL

Quantity:: RFQ Add To RFQ list

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Inventory:3,353

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Product details

Overview

AFBR-5705APZ from Broadcom (formerly Avago) is an industrial-grade, hot-pluggable SFP optical transceiver with Digital Diagnostic Monitoring Interface (DDMI), compliant with IEEE 802.3 1000BASE-SX and Fibre Channel FC-PI 100-M5/6-SN-I standards. It features an 850 nm VCSEL transmitter, LC-duplex connector, -40°C to +85°C operating range, and real-time monitoring of Tx power, Rx power, laser bias current, temperature, and supply voltage - deployed in enterprise storage area networks and high-availability fiber infrastructure.

For engineers reviewing the AFBR-5705APZ datasheet, pinout, applications, or equivalent options, this page delivers verified electrical interface timing, DDMI register mapping, industrial thermal validation, SFF-8472 compliance status, and host board pull-up/resistor requirements for TX_FAULT, LOS, and MOD-DEF pins - all specific to the AFBR-5705APZ bail-latch, industrial-temperature variant.

Technical Context

The AFBR-5705APZ implements a dual-stage SFP electrical interface: 20-pin edge connector with 3-stage hot-plug sequencing (ground → power → signal), and integrated 2-wire serial interface (I²C at A0h/A2h) supporting SFF-8472 diagnostic registers. Its transmitter uses a Class 1 eye-safe 850 nm VCSEL with internal laser safety circuitry that monitors optical output and asserts TX_FAULT on unsafe conditions.

Receiver functionality includes PIN photodiode-based ROSA with built-in LOS detection, differential RD+/RD− outputs (AC-coupled, 100 Ω terminated internally), and real-time DDMI readback of calibrated Rx power and temperature. All diagnostics are factory-calibrated per SFF-8472 Rev 9.3 and stored in EEPROM address space 0xA2.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	1.25 GBd (Gigabit Ethernet) / 1.0625 GBd (Fibre Channel) - supports both protocols without reconfiguration
Operating Temperature	-40°C to +85°C - validated for industrial environments including telecom chassis and outdoor base stations
Optical Wavelength	850 nm ±10 nm - optimized for 50/125 µm and 62.5/125 µm multimode fiber up to 550 m (GE) or 500 m (FC)
Transmit Power	-9.5 dBm to -3 dBm - meets eye-safety Class 1 limits while ensuring link budget margin over worst-case receiver sensitivity (-21 dBm)
Diagnostic Monitoring	Real-time SFF-8472-compliant DDMI - provides calibrated Tx bias current, Tx/Rx optical power, Vcc, and temperature via I²C (A2h)
Power Supply	+3.3 V ±5% (VccT/VccR) - requires MSA-compliant LC filter (1 µH + 10 µF/0.1 µF) on host board to meet PSNR ≤100 mVpp
Electrical Interface	Differential TD+/TD− and RD+/RD− (AC-coupled, 100 Ω internal termination) - eliminates need for external AC coupling caps or termination resistors

Pinout & Package

AFBR-5705APZ uses the standard SFP form factor (13.4 mm × 56.5 mm × 8.5 mm) with 20-pin card-edge connector and bail-latch mechanical design. Package is RoHS-6 compliant, UL 94V-0 flame-retardant plastic housing with metal EMI shield.

Pin/Terminal	Circuit Role	Design Meaning
1, 17, 18, 20	VeeT	Transmitter ground - engages first during hot-plug to discharge static before signal/power connection
2	TX_FAULT	Open-collector fault indicator - pulled high externally (4.7–10 kΩ) to VccT/R; low = normal, high = laser fault
3	TX_DISABLE	TTL/CMOS input - high or open disables transmitter; internal 4.7–10 kΩ pull-up ensures safe default state
4, 5	MOD-DEF2 / MOD-DEF1	I²C data/clock lines (SDA/SCL) - require 4.7–10 kΩ pull-up to VccT/R; used for DDMI access at A2h
6	MOD-DEF0	Module presence detect - grounded internally to signal insertion to host controller
8	LOS	Open-collector loss-of-signal - high = Rx optical power < -30 dBm; requires external pull-up resistor
12, 13	RD− / RD+	Differential receiver outputs - AC-coupled, 100 Ω internally terminated; swing 370–2000 mVpp
15	VccR	Receiver 3.3 V supply - must be within ±5% and differ from VccT by ≤0.5 V to prevent damage
16	VccT	Transmitter 3.3 V supply - same regulation constraints as VccR; peak in-rush ≤30 mA above steady-state
18, 19	TD+ / TD−	Differential transmitter inputs - accept 500–2400 mVpp swing; AC-coupled and 100 Ω terminated internally

Key Features

Feature	Design Value
Industrial temperature operation	Validated -40°C to +85°C case temperature - enables deployment in uncontrolled enclosures and outdoor wireless infrastructure
SFF-8472 DDMI compliance	Full real-time monitoring of Tx bias, Tx/Rx optical power, temperature, and Vcc - calibrated and accessible via I²C address A2h
Class 1 eye safety certification	FDA CDRH #9720151-57 and EN 60825-1 certified - automatic laser shutdown on unsafe optical output detected
Bail-latch mechanical design	Positive retention mechanism - prevents accidental disconnection in high-vibration environments such as cellular base stations
EMI-optimized metal housing	Meets FCC Class B, CISPR 22, VCCI Class 1 - reduces host board filtering burden in high-port-density switches and routers

Applications

Enterprise Storage Area Network	Fiber Channel Backbone
Use Scenario: Connecting Fibre Channel HBAs to director-class switches in data centers requiring 1.0625 GBd links over 62.5/125 µm OM1 fiber. IC Role / Device Role / Timing Role: Optical transceiver providing physical layer conversion between SERDES and multimode fiber, with deterministic jitter <113 ps (TP3–TP4) to maintain FC-PI bit error rate. Use Value: Industrial temperature rating ensures stable BER under blade-server thermal cycling; DDMI enables predictive failure analysis via Tx bias trend monitoring.	Use Scenario: Interconnecting redundant SAN switches in financial trading infrastructure where uptime exceeds 99.999%. IC Role / Device Role / Timing Role: Hot-pluggable SFP enabling zero-downtime failover and field replacement without powering down chassis. Use Value: Bail-latch retention prevents disconnection during seismic events; LOS and TX_FAULT signals feed into host redundancy logic for sub-second switchover.
Gigabit Ethernet Aggregation	Wireless Base Station Fronthaul
Use Scenario: Uplink modules in broadband aggregation routers connecting DSLAMs and GPON OLTs over 50/125 µm OM2 fiber. IC Role / Device Role / Timing Role: 1000BASE-SX transceiver delivering 1.25 GBd with <227 ps total jitter (TP1–TP2) to meet IEEE 802.3 eye mask compliance. Use Value: Extended optical power range (-9.5 to -3 dBm) accommodates aging fiber plant; DDMI Vcc monitoring detects early PSU degradation in remote cabinets.	Use Scenario: CPRI fronthaul links between BBU and RRH in LTE/5G macro cells using multimode fiber in temperature-uncontrolled rooftop enclosures. IC Role / Device Role / Timing Role: Industrial-temperature SFP enabling reliable operation at -40°C ambient without heater control or derating. Use Value: Eye safety certification eliminates need for additional laser interlocks; metal housing suppresses EMI from nearby RF power amplifiers.

Enterprise Storage Area Network

Fiber Channel Backbone

Use Scenario: Connecting Fibre Channel HBAs to director-class switches in data centers requiring 1.0625 GBd links over 62.5/125 µm OM1 fiber.

IC Role / Device Role / Timing Role: Optical transceiver providing physical layer conversion between SERDES and multimode fiber, with deterministic jitter <113 ps (TP3–TP4) to maintain FC-PI bit error rate.

Use Value: Industrial temperature rating ensures stable BER under blade-server thermal cycling; DDMI enables predictive failure analysis via Tx bias trend monitoring.

Use Scenario: Interconnecting redundant SAN switches in financial trading infrastructure where uptime exceeds 99.999%.

IC Role / Device Role / Timing Role: Hot-pluggable SFP enabling zero-downtime failover and field replacement without powering down chassis.

Use Value: Bail-latch retention prevents disconnection during seismic events; LOS and TX_FAULT signals feed into host redundancy logic for sub-second switchover.

Gigabit Ethernet Aggregation

Wireless Base Station Fronthaul

Use Scenario: Uplink modules in broadband aggregation routers connecting DSLAMs and GPON OLTs over 50/125 µm OM2 fiber.

IC Role / Device Role / Timing Role: 1000BASE-SX transceiver delivering 1.25 GBd with <227 ps total jitter (TP1–TP2) to meet IEEE 802.3 eye mask compliance.

Use Value: Extended optical power range (-9.5 to -3 dBm) accommodates aging fiber plant; DDMI Vcc monitoring detects early PSU degradation in remote cabinets.

Use Scenario: CPRI fronthaul links between BBU and RRH in LTE/5G macro cells using multimode fiber in temperature-uncontrolled rooftop enclosures.

IC Role / Device Role / Timing Role: Industrial-temperature SFP enabling reliable operation at -40°C ambient without heater control or derating.

Use Value: Eye safety certification eliminates need for additional laser interlocks; metal housing suppresses EMI from nearby RF power amplifiers.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
AFBR-5705ALZ	Same DDMI, same optical specs, but standard (non-bail) latch and industrial temp - differs only in mechanical retention	Preferred for fixed-mount chassis where tool-less removal is not required	Select AFBR-5705ALZ when board-level vibration is low and panel access is restricted; AFBR-5705APZ preferred for field-serviceable or high-shock environments.
AFBR-5715Z	Successor family with identical DDMI, same 1.25 GBd Ethernet support, but updated VCSEL driver and improved EMI immunity	Targets new designs requiring extended lifecycle support beyond AFBR-570xZ production end-of-life	AFBR-5715Z offers longer-term availability and enhanced jitter performance (195 ps TP1–TP2); AFBR-5705APZ remains optimal for legacy qualification or cost-sensitive volume deployments.

Compared with AFBR-5705ALZ, AFBR-5705APZ adds mechanical robustness via bail latch for field-replaceable scenarios; compared with AFBR-5715Z, it trades newer EMI/jitter specs for proven qualification in deployed industrial systems - making AFBR-5705APZ the preferred choice where mechanical reliability and long-term supply continuity outweigh marginal electrical improvements.

Availability

AFBR-5705APZ is available at Aetrix Electronics and suitable for enterprise storage area networks, fiber channel backbone infrastructure, and wireless base station fronthaul requiring stable component supply across industrial temperature ranges and long product lifecycles.

Supply support for AFBR-5705APZ 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. (acquired Avago Technologies in 2016) is a global semiconductor leader specializing in wired and wireless communications infrastructure solutions, with ISO 9001-certified manufacturing and broad optical interconnect IP.

The AFBR-5705APZ belongs to Broadcom's legacy SFP transceiver portfolio designed specifically for high-reliability Gigabit Ethernet and Fibre Channel applications in telecom, data center, and industrial networking equipment.

FAQ

What is the operating temperature range of the AFBR-5705APZ?

The AFBR-5705APZ is rated for industrial operation from -40°C to +85°C case temperature, validated per Telcordia GR-468-CORE and specified in Table 4 of the datasheet. This range applies to continuous operation with full compliance to all optical and electrical specifications, including DDMI accuracy and eye safety functionality - unlike extended-range variants limited to -10°C.

Does the AFBR-5705APZ support Digital Diagnostic Monitoring Interface (DDMI)?

Yes, the AFBR-5705APZ fully supports SFF-8472 Rev 9.3 DDMI via its 2-wire serial interface (I²C addresses A0h for serial ID and A2h for diagnostics). It provides real-time, factory-calibrated readings of transmitter bias current, transmitted/received optical power, module temperature, and supply voltage - accessible without host-side calibration.

What is the difference between AFBR-5705APZ and AFBR-5705PZ?

The AFBR-5705APZ and AFBR-5705PZ share identical DDMI capability and electrical/optical specs, but differ in temperature grade and mechanical design: AFBR-5705APZ is industrial (-40°C to +85°C) with bail latch, while AFBR-5705PZ is extended (-10°C to +85°C) with bail latch. The "A" prefix denotes industrial qualification; "L"/"P" denote latch type, "Z" confirms SFP MSA compliance.

How is the AFBR-5705APZ powered, and what host board components are required?

The AFBR-5705APZ requires two independent +3.3 V supplies: VccT (transmitter) and VccR (receiver), each regulated to ±5% and differing by no more than 0.5 V. Host boards must implement the MSA-specified LC filter (1 µH inductor + 10 µF/0.1 µF capacitors) and 4.7–10 kΩ pull-up resistors on TX_FAULT, LOS, MOD-DEF0/1/2, and TX_DISABLE pins.

Is the AFBR-5705APZ RoHS-6 compliant and eye-safety certified?

Yes, the AFBR-5705APZ is RoHS-6 compliant (≤1000 ppm Cd, Pb, Hg, Cr⁶⁺, PBB, PBDE) and certified Class 1 eye-safe per FDA CDRH (cert #9720151-57) and EN 60825-1. Its integrated eye safety circuit continuously monitors optical output and disables the VCSEL if unsafe power levels are detected - a hardware-enforced feature independent of DDMI or host control.

AFBR-5705APZ Specifications

Product attributes: Attribute value

Manufacturer:: Broadcom Limited

Series:: -

Packaging:: Bulk

Product Status:: Obsolete

Data Rate:: 1.25Gbps

Wavelength:: 850nm

Applications:: Ethernet

Voltage - Supply:: 3.3V

Connector Type:: LC Duplex

Mounting Type:: Pluggable, SFP

AFBR-5705APZ FAQ

1.How can I place an order for AFBR-5705APZ through Aetrix?

Please submit a Request for Quotation (RFQ) for AFBR-5705APZ 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-5705APZ reliable?

The price and inventory of AFBR-5705APZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AFBR-5705APZ is usually 5 days.

3.What payment methods are accepted for AFBR-5705APZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AFBR-5705APZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AFBR-5705APZ?

AFBR-5705APZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AFBR-5705APZ 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-5705APZ?

For technical support, including AFBR-5705APZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AFBR-5705APZ requirements.

6.How does Aetrix verify that AFBR-5705APZ is sourced from the original manufacturer or authorized distributors?

All AFBR-5705APZ 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-5705APZ meets industry standards.

7.What is the process for return or replacement of AFBR-5705APZ?

All AFBR-5705APZ units undergo pre-shipment inspection (PSI). If there is an issue with AFBR-5705APZ, 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-5705APZ part is unused and in its original packaging.

Return procedure for AFBR-5705APZ:

1.Submit a request within 90 days.

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

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