My Inquiry
My Account
Broadcom Limited AFBR-5705LZ
- Part No.:
- AFBR-5705LZ
- Manufacturer:
- Broadcom Limited
- Category:
- Fiber Optic Transceiver Modules
- Package:
- Datasheet:
-
AFBR-5705LZ.pdf
- Description:
- TXRX OPTICAL SFP DMI STD LATCH
- Quantity:
- Payment:
- Shipping:
Inventory:2,449
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AFBR-5705LZ from Broadcom (formerly Avago) is a hot-pluggable, multi-mode SFP optical transceiver with Digital Diagnostic Monitoring Interface (DDMI), compliant with IEEE 802.3 1000BASE-SX and Fibre Channel FC-PI 100-M5-SN-I/100-M6-SN-I standards. It features an 850 nm VCSEL transmitter, LC-duplex connector, +3.3 V supply, and operates across -10°C to +85°C for enterprise Ethernet switches and storage area networks.
For engineers reviewing the AFBR-5705LZ datasheet, pinout, applications, or equivalent options, key selection criteria include DDMI support for real-time Tx bias current and Rx optical power monitoring, SFF-8472 compliance, extended temperature range, and SFP MSA-compliant 20-pin electrical interface with hardware/software TX_DISABLE control.
Technical Context
The AFBR-5705LZ implements a fully integrated SFP transceiver architecture with separate VCSEL-based transmitter and PIN photodiode-based receiver sections, both AC-coupled and internally terminated per SFF-8074i. Its digital diagnostic monitoring conforms to SFF-8472 Rev 9.3, enabling real-time readout of temperature, supply voltage, laser bias current, transmitted optical power, and received optical power via I²C (A2h address).
It supports dual data rates: 1.25 GBd for Gigabit Ethernet and 1.0625 GBd for Fibre Channel, with eye safety certification (FDA CDRH Class 1, EN 60825-1), hot-plug 3-stage pin sequencing, and EMI-optimized metal housing. The module uses EEPROM (AT24C01A-compatible) for serial ID and DDMI calibration data storage at addresses 0xA0 (base ID) and 0xA2 (diagnostics).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 1.25 GBd (Gigabit Ethernet) / 1.0625 GBd (Fibre Channel) - supports interoperability with standard 1000BASE-SX and FC-PI links |
| Wavelength | 850 nm VCSEL - optimized for 50/125 µm and 62.5/125 µm multimode fiber up to 550 m (Ethernet) or 500 m (FC) |
| Optical Power Out | -9.5 to -3 dBm average - meets eye safety limits while ensuring sufficient link margin over multimode fiber |
| Receiver Sensitivity | -21 dBm (min) - enables reliable operation with low-power or degraded optical signals in dense network environments |
| Supply Voltage | +3.3 V ±5% - requires host-side MSA-compliant filtering (1 µH inductor + 10 µF/0.1 µF caps) to meet PSNR ≤100 mVpp |
| Operating Temp | -10°C to +85°C - qualified for extended-temperature enterprise infrastructure without derating |
| Diagnostic Interface | SFF-8472 compliant I²C (A2h) - provides calibrated, real-time access to Tx bias, Tx power, Rx power, Vcc, and temperature for predictive maintenance |
Pinout & Package
AFBR-5705LZ uses the industry-standard SFP form factor (20-pin card-edge connector) with metal housing and LC-duplex optical interface. Package dimensions conform to SFF-8074i: 13.4 mm × 56.5 mm × 8.5 mm (W × L × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 17, 19, 20 | VeeT | Transmitter ground - provides dedicated return path for laser driver, critical for EMI control and signal integrity |
| 9, 10, 11, 14 | VeeR | Receiver ground - isolated from VeeT to minimize crosstalk between Tx/Rx analog sections |
| 15 | VccR | Receiver 3.3 V supply - must be within ±5% and differ from VccT by ≤0.5 V to prevent internal damage |
| 16 | VccT | Transmitter 3.3 V supply - powers VCSEL driver; requires external 4.7–10 kΩ pull-up on TX_FAULT (pin 2) |
| 2 | TX_FAULT | Open-collector fault indicator - high = laser fault (e.g., overcurrent, overtemp); latched until TX_DISABLE toggle or power cycle |
| 3 | TX_DISABLE | TTL/CMOS input - high or open disables laser; internal 4.7–10 kΩ pull-up ensures safe default state |
| 4, 5 | MOD-DEF2 / MOD-DEF1 | I²C data/clock lines - enable host readout of serial ID (A0h) and DDMI data (A2h); require 4.7–10 kΩ host pull-ups |
| 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; mirrored in A2h byte 110 bit 1 for software monitoring |
| 12, 13 | RD− / RD+ | Differential receiver outputs - AC-coupled, 100 Ω differential, 370–2000 mVpp swing; no host termination required |
| 18, 19 | TD+ / TD− | Differential transmitter inputs - AC-coupled, accept 500–2400 mVpp; host must provide 100 Ω differential termination |
Key Features
| Feature | Design Value |
|---|---|
| Digital Diagnostic Monitoring (DDMI) | Real-time calibrated readout of Tx bias current, Tx optical power, Rx optical power, temperature, and supply voltage per SFF-8472 - enables predictive failure identification and thermal management in high-density chassis |
| Eye Safety Certification | FDA CDRH Class 1 and EN 60825-1 certified - integrated circuitry continuously monitors output power and disables laser if unsafe condition detected |
| Hot-Pluggable Architecture | 3-stage pin engagement sequence (ground → power → signal) - allows live insertion/removal without host power-down, reducing network downtime during maintenance |
| EMI-Optimized Housing | Metal enclosure with shielded design - meets FCC Class B, CISPR 22, and VCCI Class 1 requirements even in high-port-density configurations |
| RoHS-6 Compliance | Lead-free, cadmium-free, mercury-free construction - satisfies EU Directive 2011/65/EU and global environmental procurement requirements |
Applications
| Enterprise Switching | Storage Area Networking |
|---|---|
Use Scenario: 1000BASE-SX uplinks in modular Ethernet switches supporting 48-port line cards with redundant fabric interconnects. IC Role / Device Role / Timing Role: Optical transceiver providing physical-layer serialization/deserialization interface between switch ASIC and multimode fiber plant. Use Value: DDMI enables per-port optical health monitoring, allowing automated detection of degrading VCSELs before link flapping occurs - reducing mean time to repair (MTTR) by >40% in carrier-grade deployments. | Use Scenario: Fibre Channel SAN edge connectivity between disk arrays and FC directors in data centers with mixed 1 Gbps and 2 Gbps legacy infrastructure. IC Role / Device Role / Timing Role: Protocol-transparent optical interface compliant with FC-PI 100-M5-SN-I and 100-M6-SN-I standards. Use Value: Extended temperature range (-10°C to +85°C) and industrial-grade reliability ensure stable operation in non-air-conditioned storage enclosures where ambient exceeds typical telecom specs. |
| Broadband Aggregation | Wireless Infrastructure Backhaul |
Use Scenario: GPON OLT aggregation layer using 1000BASE-SX to consolidate traffic from multiple PON splitters into core routers. IC Role / Device Role / Timing Role: High-reliability optical link component enabling deterministic latency and jitter performance (<227 ps TJ at 1.25 GBd) for time-sensitive broadband services. Use Value: Low deterministic jitter and tight extinction ratio (9–12 dB) maintain BER <10⁻¹² over 550 m of OM2 fiber - eliminating need for costly repeaters in metro-access nodes. | Use Scenario: Microwave backhaul radios connecting cell towers to mobile switching centers via dark fiber with minimal rack space. IC Role / Device Role / Timing Role: Compact SFP transceiver delivering full-rate 1.25 GBd throughput in space-constrained outdoor radio units. Use Value: Small form factor and low power dissipation (530–765 mW) allow integration into sealed, fanless enclosures rated for IP65 environmental protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SFP transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AFBR-5705PZ | Same DDMI functionality and optical specs, but uses bail latch instead of standard latch mechanism | Preferred for high-vibration environments (e.g., transport infrastructure) where mechanical retention stability is critical | Select AFBR-5705PZ when board-level shock/vibration testing exceeds IEC 60068-2-64 requirements |
| AFBR-5705ALZ | Identical DDMI and optical performance, but rated for -40°C to +85°C industrial temperature range | Required for uncontrolled outdoor cabinets, base station shelters, or industrial automation control networks | Choose AFBR-5705ALZ when ambient operating temperature falls below -10°C or exceeds +85°C in sustained operation |
Compared with AFBR-5705LZ, AFBR-5705PZ offers enhanced mechanical retention for ruggedized deployments, while AFBR-5705ALZ extends operational envelope to true industrial temperatures - neither is pin-compatible without verifying latch footprint and thermal derating in system-level validation.
Availability
AFBR-5705LZ is available at Aetrix Electronics and suitable for enterprise switching, storage area networking, and broadband aggregation requiring stable component supply, full SFF-8472 DDMI support, and extended-temperature reliability.
Supply support for AFBR-5705LZ 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. (formerly Avago Technologies) is a global semiconductor leader specializing in wired infrastructure, optical networking, and enterprise connectivity solutions.
The AFBR-5705LZ belongs to Broadcom's AFBR-570xZ SFP transceiver product line, engineered specifically for cost-effective, high-reliability Gigabit Ethernet and Fibre Channel links in carrier-class and enterprise data center environments.
FAQ
What is the primary compliance standard met by the AFBR-5705LZ?
The AFBR-5705LZ complies with IEEE 802.3 1000BASE-SX for Gigabit Ethernet and ANSI X3.230 (FC-PI) for Fibre Channel, in addition to SFP Multi-Source Agreement (SFF-8074i) and Digital Diagnostic Monitoring Interface (SFF-8472 Rev 9.3). It also meets Telcordia GR-468-CORE reliability requirements and FDA CDRH Class 1 eye safety standards. These certifications ensure interoperability and safety in carrier and enterprise optical networks.
Does the AFBR-5705LZ support hot-plug insertion and removal?
Yes, the AFBR-5705LZ supports full hot-plug operation via its 3-stage pin engagement sequence: housing ground shields first, followed by power pins (VccR/VccT), then signal lines (TD+/TD−, RD+/RD−, etc.). This prevents electrical overstress and ensures safe insertion/removal while host equipment remains powered and operational - a requirement for zero-downtime network maintenance in data centers and telecom central offices.
How does the Digital Diagnostic Monitoring (DDMI) function in the AFBR-5705LZ?
The AFBR-5705LZ implements DDMI per SFF-8472 using an I²C interface at address 0xA2. It provides real-time, factory-calibrated readings of temperature, supply voltage, laser bias current, transmitted optical power, and received optical power. These values are accessible via host microcontroller reads and support predictive failure analysis, compliance verification, and fault isolation - all without requiring additional external sensors or circuitry.
What fiber types and distances does the AFBR-5705LZ support?
The AFBR-5705LZ supports 50/125 µm OM2 multimode fiber up to 550 meters at 1.25 GBd (1000BASE-SX) and up to 500 meters at 1.0625 GBd (Fibre Channel). With 62.5/125 µm fiber, it achieves 275 meters (Ethernet) and 300 meters (Fibre Channel). Performance assumes compliant LC-duplex connectors and proper launch conditions per IEEE and FC-PI specifications.
Is the AFBR-5705LZ RoHS-6 compliant?
Yes, the AFBR-5705LZ is RoHS-6 compliant, containing less than 1000 ppm of cadmium, lead, mercury, hexavalent chromium, polybrominated biphenyls (PBB), and polybrominated diphenyl ethers (PBDE). This compliance is verified per EU Directive 2011/65/EU and supports global environmental procurement policies for enterprise and telecom equipment manufacturers.
AFBR-5705LZ 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-5705LZ FAQ
1.How can I place an order for AFBR-5705LZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AFBR-5705LZ 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-5705LZ reliable?
The price and inventory of AFBR-5705LZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AFBR-5705LZ is usually 5 days.
3.What payment methods are accepted for AFBR-5705LZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AFBR-5705LZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AFBR-5705LZ?
AFBR-5705LZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AFBR-5705LZ 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-5705LZ?
For technical support, including AFBR-5705LZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AFBR-5705LZ requirements.
6.How does Aetrix verify that AFBR-5705LZ is sourced from the original manufacturer or authorized distributors?
All AFBR-5705LZ 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-5705LZ meets industry standards.
7.What is the process for return or replacement of AFBR-5705LZ?
All AFBR-5705LZ units undergo pre-shipment inspection (PSI). If there is an issue with AFBR-5705LZ, 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-5705LZ part is unused and in its original packaging.
Return procedure for AFBR-5705LZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AFBR-5705LZ Tags
-
AFBR-5972EZ
Broadcom Limited
-
AFBR-5972BZ
Broadcom Limited
-
FTLF8519P3BNL
Coherent
-
AFBR-5803Z
Broadcom Limited
-
AFBR-5803TZ
Broadcom Limited
-
FTLF8519P3BTL
Coherent
-
AFBR-5803ATZ
Broadcom Limited
-
AFBR-5803ATQZ
Broadcom Limited
-
FTLX8574D3BCV
Coherent
-
FTLF8526P3BNL
Coherent
-
FTLF8519F2GCL
Coherent
-
FTLF1318P3BTL
Coherent
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
