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Broadcom Limited AFCT-57G5MZ
- Part No.:
- AFCT-57G5MZ
- Manufacturer:
- Broadcom Limited
- Category:
- Fiber Optic Transceiver Modules
- Package:
- Datasheet:
-
AFCT-57G5MZ.pdf
- Description:
- 32G LR AMP 0-70C
- Quantity:
- Payment:
- Shipping:
Inventory:4,599
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Product details
Overview
AFCT-57G5MZ from Broadcom (formerly Avago Technologies) is a 32G/16G/8G Fibre Channel SFP+ optical transceiver with 1310nm DFB laser, supporting serial line rates up to 28.05 Gb/s over single-mode fiber. It integrates dual CDRs for 32GFC and 16GFC, bypasses CDR for 8GFC, and delivers real-time digital diagnostics per SFF-8472 for temperature, supply voltage, Tx bias current, Tx/Rx optical power. Used in Fibre Channel director-class switches and HBAs requiring Class 1 eye safety and wide-temperature operation.
For engineers reviewing the AFCT-57G5MZ datasheet, pinout, applications, or equivalent options, this page provides verified technical context on multi-rate CDR configuration, SFF-8472 diagnostic register mapping, LC duplex optical interface compliance, RoHS/CDRH/IEC60825-1 certification, and SFP+ mechanical alignment per SFF-8432 - all specific to the AFCT-57G5MZ variant.
Technical Context
The AFCT-57G5MZ implements independent hardware-controlled Tx_RATE (Pin 9) and Rx_RATE (Pin 7) inputs to configure CDR engagement: logic HIGH enables CDR lock at 28.05 Gb/s (32GFC), logic LOW triggers auto-detection between 14.025 Gb/s (16GFC, CDR engaged) and 8.5 Gb/s (8GFC, CDR bypassed). This allows asymmetric rate negotiation during FC link initialization.
Its transmitter uses a 1310nm DFB laser with integral photodiode monitoring and variable equalization; receiver employs a high-speed PIN photodiode with post-amplification and programmable emphasis. Digital diagnostics are accessed via I²C (SCL/SDA on Pins 5/4) with 400 kHz clock support and 500 µs clock stretching per SFF-8431.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 8.5 / 14.025 / 28.05 Gb/s - supports FC-PI-6 8GFC, 16GFC, and 32GFC with FEC required only at 32GFC |
| Optical Wavelength | 1295–1325 nm - 1310nm DFB laser with <1.0 nm rms spectral width for low dispersion in SMF |
| Operating Temperature | 0°C to +70°C case - validated for enterprise switch and HBA chassis environments without active cooling |
| Supply Voltage | 3.135–3.465 V - tight 3.3V tolerance ensures stable CDR and laser driver performance across voltage droop |
| Diagnostic Interface | SFF-8472 compliant I²C - provides real-time readout of Tx bias current, Tx/Rx optical power, temperature, and supply voltage |
| Optical Interface | LC duplex per ANSI TIA/EIA-604-10 (FOCIS 10A) - standardized connector for field-replaceable SMF links |
| Laser Safety | IEC 60825-1 & CDRH Class 1 - no external safety interlocks required; safe for untrained operator handling |
Pinout & Package
SFP+ form factor (20-pin edge connector), compliant with SFF-8432 mechanical specification and RoHS directive. Dimensions: 13.4 mm × 8.5 mm × 56.5 mm (L×W×H).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 17, 20 | VeeT | Transmitter ground reference - three dedicated pins minimize ground bounce during high-speed modulation |
| 2 | TX_FAULT | Open-drain fault indicator - pulled high externally; asserts when laser bias exceeds limits or thermal shutdown occurs |
| 3 | TX_DISABLE | Transmitter enable control - internally pulled up; logic HIGH or open disables optical output per SFF-8074i |
| 4 | MOD-DEF2 (SDA) | I²C data line - bidirectional serial bus for reading EEPROM and diagnostic registers (A0h/A2h) |
| 5 | MOD-DEF1 (SCL) | I²C clock line - 400 kHz max rate with 500 µs clock stretch support per SFF-8431 |
| 6 | MOD-DEF0 | Module presence detect - grounded internally to signal host that module is seated and powered |
| 7 | Rx Rate Select (RS0) | Hardware rate control - logic HIGH configures Rx CDR for 28.05 Gb/s; LOW enables auto-detect for 14.025/8.5 Gb/s |
| 8 | RX_LOS | Open-drain loss-of-signal - pulled high externally; asserts when received optical power falls below -30 dBm (OMA) |
| 9 | Tx Rate Select (RS1) | Hardware rate control - logic HIGH configures Tx CDR for 28.05 Gb/s; LOW enables auto-detect for 14.025/8.5 Gb/s |
| 10, 11, 14 | VeeR | Receiver ground reference - three pins reduce noise coupling into high-gain analog receive path |
| 12–13 | RD− / RD+ | Differential receiver outputs - AC-coupled 100Ω differential pair; requires 100Ω termination at SERDES input |
| 15 | VccR | +3.3V receiver supply - separate rail isolates analog receiver circuitry from digital and transmitter noise |
| 16 | VccT | +3.3V transmitter supply - dedicated rail ensures stable laser bias and modulation under dynamic load |
| 18–19 | TD+ / TD− | Differential transmitter inputs - AC-coupled 100Ω differential pair; accepts 50–900 mVpp swing for optimal EMI |
Key Features
| Feature | Design Value |
|---|---|
| Multi-rate CDR architecture | Independent Tx/Rx CDRs engage at 28.05/14.025 Gb/s but bypass at 8.5 Gb/s - enables seamless FC speed negotiation without host firmware reconfiguration |
| Real-time digital diagnostics | SFF-8472-compliant I²C interface reports Tx bias current, Tx/Rx optical power, temperature, and supply voltage with ±3 dB accuracy - enables predictive link health monitoring |
| Class 1 laser safety | IEC 60825-1 and CDRH certified - eliminates need for external interlock circuits or safety labeling in end equipment |
| Wide-temperature operation | Validated from 0°C to +70°C case temperature - supports deployment in uncooled Fibre Channel blade enclosures and top-of-rack switches |
| LC duplex optical interface | ANSI TIA/EIA-604-10 (FOCIS 10A) compliant - ensures mechanical interoperability with standard SMF patch cords and chassis receptacles |
Applications
| Fibre Channel Director Switches | Fibre Channel Host Bus Adapters |
|---|---|
Use Scenario: High-port-count 32GFC aggregation in enterprise storage networks with non-blocking backplane bandwidth. IC Role / Device Role / Timing Role: Optical transceiver providing 28.05 Gb/s serial link layer connectivity between switch ASIC and SMF uplinks. Use Value: Enables 32GFC line rate with FEC support while maintaining backward compatibility with 16GFC/8GFC legacy ports via hardware rate select pins. |
Use Scenario: PCIe-based HBA card connecting servers to Fibre Channel SANs with hot-pluggable optics. IC Role / Device Role / Timing Role: Pluggable SFP+ module delivering deterministic jitter performance (<0.36 UI at 14.025 Gb/s) for reliable SERDES lock. Use Value: Dual CDR architecture ensures clean eye opening at 32GFC and 16GFC, reducing bit error rate without requiring host-side retiming. |
| Fibre Channel RAID Controllers | Inter-Switch Aggregated Links |
Use Scenario: Embedded RAID controller in JBOD enclosures requiring direct-attached 32GFC connectivity to disk shelves. IC Role / Device Role / Timing Role: Optical interface converting parallel SCSI or SAS traffic to serialized 28.05 Gb/s FC protocol over SMF. Use Value: Real-time diagnostics (SFF-8472) allow controller firmware to monitor laser degradation and proactively flag failing modules before link outage. |
Use Scenario: Multi-lane trunking between core and edge Fibre Channel switches using parallel SMF runs. IC Role / Device Role / Timing Role: High-reliability transceiver with Class 1 laser and robust ESD protection (15 kV air discharge) for data center interconnects. Use Value: Wide operating temperature range (0°C–70°C) and 300 mA max supply current ensure stable operation in densely packed switch line cards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Fibre Channel transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AFCT-57F3TMZ | 1310nm SFP (not SFP+) supporting 16G/8G/4G FC only; no 32GFC capability; lacks CDR for 28.05 Gb/s; smaller form factor (SFP vs SFP+) | Designed for legacy 16GFC infrastructure; not suitable for new 32GFC deployments requiring FEC or 28.05 Gb/s line rate | Select AFCT-57F3TMZ only when upgrading 16GFC systems without 32GFC roadmap requirements. |
| AFBR-57G5MZ | 850nm SFP+ variant for 32G/16G/8G FC over multimode fiber; different wavelength, shorter reach (100m OM4), no SMF support | Targeted at short-reach intra-rack or intra-row connections; incompatible with single-mode infrastructure and long-haul FC links | Choose AFBR-57G5MZ for cost-sensitive MMF deployments where distance ≤100 m; retain AFCT-57G5MZ for SMF backbone links ≥2 km. |
Compared with AFCT-57F3TMZ and AFBR-57G5MZ, the AFCT-57G5MZ uniquely combines 32GFC readiness, single-mode reach, and SFF-8472 diagnostics - making it the only option among the three for new 32GFC director-class switch designs requiring >2 km SMF connectivity and real-time laser health monitoring.
Availability
AFCT-57G5MZ is available at Aetrix Electronics and suitable for Fibre Channel director switches, host bus adapters, and RAID controllers requiring stable component supply, full SFF-8472 diagnostic integration, and Class 1 laser compliance.
Supply support for AFCT-57G5MZ 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 leader in semiconductor solutions for wired infrastructure, networking, and storage systems, with deep expertise in optical interconnects and high-speed serial interfaces.
The AFCT-57G5MZ belongs to Broadcom's Fibre Channel SFP+ transceiver product line, engineered specifically for enterprise storage area networks demanding multi-rate interoperability, diagnostic visibility, and Class 1 laser safety in compact pluggable form factors.
FAQ
What data rates does the AFCT-57G5MZ support, and how is rate selection controlled?
The AFCT-57G5MZ supports 8.5 Gb/s (8GFC), 14.025 Gb/s (16GFC), and 28.05 Gb/s (32GFC) line rates. Rate selection is controlled independently for transmit and receive via hardware pins RS(1) (Pin 9) and RS(0) (Pin 7): logic HIGH configures CDR engagement for 32GFC, while logic LOW enables auto-detection between 16GFC (CDR engaged) and 8GFC (CDR bypassed). The AFCT-57G5MZ also supports software-controlled rate selection via I²C register writes to A2h byte 110/118.
Does the AFCT-57G5MZ include digital diagnostics, and what parameters are monitored?
Yes, the AFCT-57G5MZ fully complies with SFF-8472 for real-time digital diagnostics. It monitors transmitter average optical power, received average optical power, laser bias current, internal temperature, and supply voltage via its I²C interface (Pins 4/5). Accuracy is specified as ±3.0 dB for optical power, ±3.0°C for temperature, and ±0.1 V for supply voltage - all accessible through standard SFP+ management firmware.
What optical fiber type and connector does the AFCT-57G5MZ use?
The AFCT-57G5MZ is designed for single-mode optical fiber (SMF) and features an LC duplex optical connector compliant with ANSI TIA/EIA-604-10 (FOCIS 10A). Its 1310nm DFB laser delivers link distances up to 2 km per Fibre Channel FC-PI-6 specifications, making it suitable for data center inter-switch links and SAN backbone connections where multimode fiber reach is insufficient.
Is the AFCT-57G5MZ compliant with laser safety standards?
Yes, the AFCT-57G5MZ is certified Class 1 eye-safe per IEC 60825-1 and US FDA CDRH regulations (certification number 9521220-224). This classification means the device poses no risk of eye injury under normal operating conditions, eliminating the need for external safety interlocks, warning labels, or user training - a critical requirement for enterprise storage equipment deployed in shared IT environments.
What is the operating temperature range and power supply requirement for the AFCT-57G5MZ?
The AFCT-57G5MZ operates over a case temperature range of 0°C to +70°C and requires a nominal +3.3 V supply with tolerance of ±5% (3.135–3.465 V). Total power consumption is ≤1.2 W, with maximum supply current of 300 mA. Its design accommodates typical in-rush current spikes (<30 mA above steady state after 500 ns), ensuring compatibility with standard SFP+ power delivery on host boards.
AFCT-57G5MZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Broadcom Limited
- Series:
- AFCT
- Packaging:
- Tray
- Product Status:
- Obsolete
- Data Rate:
- 28.05Gbps
- Wavelength:
- 1310nm
- Applications:
- Fibre Channel Links
- Voltage - Supply:
- 3.1V ~ 3.5V
- Connector Type:
- LC Duplex
- Mounting Type:
- Pluggable, SFP+
AFCT-57G5MZ FAQ
1.How can I place an order for AFCT-57G5MZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AFCT-57G5MZ 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 AFCT-57G5MZ reliable?
The price and inventory of AFCT-57G5MZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AFCT-57G5MZ is usually 5 days.
3.What payment methods are accepted for AFCT-57G5MZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AFCT-57G5MZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AFCT-57G5MZ?
AFCT-57G5MZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AFCT-57G5MZ 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 AFCT-57G5MZ?
For technical support, including AFCT-57G5MZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AFCT-57G5MZ requirements.
6.How does Aetrix verify that AFCT-57G5MZ is sourced from the original manufacturer or authorized distributors?
All AFCT-57G5MZ 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 AFCT-57G5MZ meets industry standards.
7.What is the process for return or replacement of AFCT-57G5MZ?
All AFCT-57G5MZ units undergo pre-shipment inspection (PSI). If there is an issue with AFCT-57G5MZ, 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 AFCT-57G5MZ part is unused and in its original packaging.
Return procedure for AFCT-57G5MZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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