Broadcom Limited ABCU-5730RZ
- Part No.:
- ABCU-5730RZ
- Manufacturer:
- Broadcom Limited
- Category:
- Fiber Optic Transceiver Modules
- Package:
- Datasheet:
-
ABCU-5730RZ.pdf
- Description:
- TXRX RJ-45 SFP 1.25GBD
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
ABCU-5730RZ from Broadcom (formerly Avago Technologies) is a 10/100/1000BASE-T SFP electrical transceiver module supporting full-duplex 1.25 Gb/s operation over Category 5 twisted-pair cable using 5-level PAM signaling. It integrates SerDes, DSP, and RJ-45 magnetics with internal AC coupling and 100 Ω differential termination. Designed for switch-to-switch and backplane Gigabit Ethernet links up to 100 m.
For engineers reviewing the ABCU-5730RZ datasheet, pinout, applications, or equivalent options, this page delivers verified specifications, validated 20-pin SFP interface mapping, commercial-temperature (-5 °C to +70 °C) operation, RX_LOS-enabled link status signaling, and direct alternatives for 1000BASE-T SFP electrical interconnects.
Technical Context
The ABCU-5730RZ implements IEEE 802.3:2005-compliant auto-negotiation (Clause 28 for twisted pair, Clause 37 for 1000BASE-X), supports SGMII host interfaces, and embeds a PHY ASIC with 32×16-bit registers accessible via 2-wire serial EEPROM protocol (AT24C01A-compatible). Its internal SerDes handles 1.25 GBd PAM-5 encoding/decoding with integrated transmitter bias resistors and coupling capacitors.
It features three-stage hot-plug sequencing (ground → power → signal), MSA-compliant metal housing with UL 94V-0 plastic, and ESD protection rated at ±2 kV (HBM) on electrical pins and ±15 kV air/±8 kV contact on RJ-45. Power delivery requires dual 3.3 V ±5% supplies (VCCT and VCCR), each supporting up to 370 mA typical current draw.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 1.25 Gb/s - matches SGMII and 1000BASE-T line rate; enables interoperability with standard SerDes PHY interfaces |
| Supply Voltage | +3.3 V ±5% (VCCT & VCCR) - mandates separate low-noise filtering per MSA recommendation (1 μH inductors, 0.1–10 μF caps) |
| Operating Temperature | -5 °C to +70 °C - commercial-grade rating; distinct from industrial -40 °C to +85 °C variants like ABCU-5730ARZ |
| Link Distance | Up to 100 m over Cat 5 UTP/STP - complies with IEEE 802.3 clause 40; no fiber or active equalization required |
| RX_LOS Function | Enabled - provides TTL-compatible link-up/link-down indication (not AC-coupled peak detection); asserted high on loss |
| Power Dissipation | 1100–1150 mW - defines thermal management requirements; requires chassis-level airflow or conduction path in dense SFP cages |
| Interface Standard | SFP MSA-compliant 20-pin edge connector - ensures mechanical and electrical compatibility with industry-standard host cages |
Pinout & Package
ABCU-5730RZ uses the standard SFP form factor (13.4 mm × 56.5 mm × 8.5 mm) with a 20-pin card-edge connector per SFP MSA. The module integrates custom RJ-45 jack with embedded magnetics and EEPROM for serial identification.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 17, 20 | VEET | Transmitter ground reference - must be connected to host board's transmitter ground plane; three pins reduce impedance |
| 2 | TX_FAULT | Transmitter fault indicator - internally tied to ground via 100 Ω; not actively driven; reserved for future use |
| 3 | TX_DISABLE | Reset control input - pulled up internally with 4.7 kΩ; low (0–0.8 V) enables transceiver; high/open asserts reset |
| 4, 5 | MOD_DEF2, MOD_DEF1 | 2-wire serial ID clock/data - require 4.7–10 kΩ pull-up on host board; interface to onboard AT24C01A-compatible EEPROM |
| 6 | MOD_DEF0 | Module presence detect - grounded internally via 100 Ω resistor; signals module insertion to host controller |
| 8 | LOS | Loss of Signal - enabled in ABCU-5730RZ; TTL-level link status (high = link down); not a voltage detector |
| 9–11, 14 | VEER | Receiver ground reference - four dedicated pins ensure low-noise return path for differential RD+/RD− |
| 12, 13 | RD−, RD+ | Receiver differential output - AC-coupled, 100 Ω internally terminated; compatible with CML/LVPECL SerDes inputs (370–2000 mVpp) |
| 15 | VCCR | Receiver power supply - 3.3 V ±5%; max 370 mA draw; requires local 0.1 μF + 10 μF decoupling per MSA |
| 16 | VCCT | Transmitter power supply - 3.3 V ±5%; max 370 mA draw; independent from VCCR for noise isolation |
| 18, 19 | TD+, TD− | Transmitter differential input - AC-coupled, 100 Ω internally terminated; accepts 500–2400 mVpp CML/LVPECL signals |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RJ-45 with magnetics | Eliminates external magnetics, transformer, and common-mode chokes - reduces BOM count and PCB area by >12 components |
| Onboard SerDes/DSP | Performs full 1000BASE-T PAM-5 encoding, decoding, echo cancellation, and adaptive equalization - no external PHY IC required |
| Hot-pluggable 3-stage pin sequencing | Ensures safe insertion/removal under power: ground pins engage first, then VCCT/VCCR, then signal pins - prevents latch-up or ESD damage |
| RoHS-6 compliant & UL recognized | Meets global environmental and safety standards (UL File #E173874); metal housing + UL 94V-0 plastic enables system-level certification |
| SGMII host interface support | Enables direct connection to FPGA or SoC SGMII MACs without glue logic - simplifies timing closure and reduces latency vs. GMII |
Applications
| Switch-to-Switch Interface | Switched Backplane |
|---|---|
|
Use Scenario: Interconnecting layer-2 switches in enterprise or data center top-of-rack deployments using copper cabling. IC Role / Device Role / Timing Role: Electrical PHY transceiver bridging SGMII MAC to 1000BASE-T physical medium; handles auto-negotiation, PAM-5 modulation, and link training. Use Value: Enables cost-effective, low-latency 1 Gb/s links over existing Cat 5 infrastructure without fiber optics or media converters. |
Use Scenario: High-density modular switch chassis where line cards plug into a passive backplane with embedded Cat 5 traces. IC Role / Device Role / Timing Role: SFP-module-based PHY providing 1.25 Gb/s SerDes-to-copper conversion; supports hot-swap and link fault reporting via LOS. Use Value: Delivers deterministic 100 m reach within chassis while maintaining MSA mechanical compliance and thermal envelope. |
| File Server NIC Interface | Industrial Control Network Edge |
|
Use Scenario: Adding Gigabit Ethernet connectivity to rack-mounted file servers via SFP+ cage adapters or legacy SFP slots. IC Role / Device Role / Timing Role: Electrical transceiver translating server-side SGMII to 1000BASE-T; manages auto-negotiation with upstream switch ports. Use Value: Avoids costly optical modules while ensuring IEEE 802.3 compliance and full-duplex throughput for NAS/SAN traffic. |
Use Scenario: Connecting programmable logic controllers (PLCs) or HMIs to industrial Ethernet switches in factory-floor environments. IC Role / Device Role / Timing Role: Robust copper PHY with ESD-hardened RJ-45 interface (±15 kV air discharge) and stable -5 °C to +70 °C operation. Use Value: Provides reliable 1 Gb/s connectivity in electrically noisy settings without requiring shielded fiber or external surge protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 1000BASE-T SFP electrical transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ABCU-5730ARZ | Industrial temperature range (-40 °C to +85 °C); identical pinout, RX_LOS enable, and electrical specs | Required for outdoor enclosures, transportation systems, or uncontrolled ambient deployments | Select ABCU-5730ARZ when operating outside commercial temperature limits; otherwise ABCU-5730RZ suffices |
| ABCU-5730GZ | Includes isolated ground between transmitter and receiver sections; same temp range and RX_LOS function | Needed in mixed-signal systems where ground loop noise or CMRR degradation compromises signal integrity | Choose ABCU-5730GZ only if measured ground noise exceeds 10 mVpp between TX/RX domains; adds cost and complexity |
Compared with ABCU-5730RZ, ABCU-5730ARZ extends thermal reliability for harsh environments without altering interface behavior, while ABCU-5730GZ adds galvanic isolation to suppress ground-borne noise-neither is pin-compatible drop-in replacements but share identical footprint, pinout, and register map.
Availability
ABCU-5730RZ is available at Aetrix Electronics and suitable for switch-to-switch interconnects, industrial Ethernet gateways, and file server NIC designs requiring stable component supply across multi-year production cycles.
Supply support for ABCU-5730RZ 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 broadband communications.
The ABCU-57xxxxZ family was designed specifically to replace optical SFPs in cost-sensitive, short-reach Gigabit Ethernet applications-enabling copper-based 1000BASE-T connectivity in MSA-compliant SFP ports without redesigning host hardware.
FAQ
What is the operating temperature range for the ABCU-5730RZ?
The ABCU-5730RZ is rated for commercial temperature operation from -5 °C to +70 °C case temperature. This distinguishes it from industrial variants like ABCU-5730ARZ (-40 °C to +85 °C). Thermal derating is not specified; operation outside this range may cause link instability or permanent damage. Always verify ambient airflow and PCB copper pour in your SFP cage layout to maintain case temperature within limits.
Does the ABCU-5730RZ support SGMII host interfaces?
Yes, the ABCU-5730RZ fully supports SGMII host interfaces per its datasheet and register map (Registers 0–31). It accepts 1.25 Gb/s differential SGMII input on TD+/TD− and outputs SGMII-compliant RD+/RD− signals. Auto-negotiation remains active and interoperable with standard SGMII MACs, enabling plug-and-play integration without firmware modification.
How does RX_LOS function on the ABCU-5730RZ?
On the ABCU-5730RZ, the RX_LOS (pin 8) is enabled and functions as a TTL-level link status indicator-not a peak detector. It asserts high when the 1000BASE-T link is down and de-asserts low when link is established. This differs from optical SFPs; here, LOS reflects negotiated link state derived from PHY register bit 1.2 (Link Status), providing deterministic software-readable status.
What power supply filtering is required for the ABCU-5730RZ?
The ABCU-5730RZ requires MSA-compliant filtering on both VCCT (pin 16) and VCCR (pin 15): one 1 μH inductor (DCR < 1 Ω) followed by parallel 0.1 μF ceramic and 10 μF bulk capacitors. This configuration achieves the specified 100 mVpp power supply noise rejection (PSNR) across 10 Hz–2 MHz. Skipping the inductor or using insufficient capacitance risks link flapping or increased BER.
Is the ABCU-5730RZ RoHS-6 compliant and UL recognized?
Yes, the ABCU-5730RZ is RoHS-6 compliant (Pb, Hg, Cr⁶⁺, PBB, PBDE < 0.1% w/w) and carries UL Component Recognition under File #E173874 for information technology equipment. Its metal housing and UL 94V-0 plastic meet flammability, grounding, and EMI requirements per FCC Part 15 Class B, EN55022 Class B, and VCCI Class 1 standards.
ABCU-5730RZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Broadcom Limited
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Data Rate:
- 1.25Gbd
- Wavelength:
- -
- Applications:
- Ethernet
- Voltage - Supply:
- 3.3V
- Connector Type:
- RJ45
- Mounting Type:
- Pluggable, SFP
ABCU-5730RZ FAQ
1.How can I place an order for ABCU-5730RZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ABCU-5730RZ 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 ABCU-5730RZ reliable?
The price and inventory of ABCU-5730RZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ABCU-5730RZ is usually 5 days.
3.What payment methods are accepted for ABCU-5730RZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ABCU-5730RZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ABCU-5730RZ?
ABCU-5730RZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ABCU-5730RZ 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 ABCU-5730RZ?
For technical support, including ABCU-5730RZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ABCU-5730RZ requirements.
6.How does Aetrix verify that ABCU-5730RZ is sourced from the original manufacturer or authorized distributors?
All ABCU-5730RZ 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 ABCU-5730RZ meets industry standards.
7.What is the process for return or replacement of ABCU-5730RZ?
All ABCU-5730RZ units undergo pre-shipment inspection (PSI). If there is an issue with ABCU-5730RZ, 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 ABCU-5730RZ part is unused and in its original packaging.
Return procedure for ABCU-5730RZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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