VSC452XHW-05 - Interface Controller ADC, BGA | Analog Devices
MPN: VSC452XHW-05 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $32.75 | $327.50 |
| 100 | $26.9 | $2,690.00 |
| 500 | $22.4 | $11,200.00 |
| 1,000 | $19.1 | $19,100.00 |
VSC452XHW-05 Overview
An Interface Controller IC is a mixed-signal semiconductor that bridges a parallel digital bus (typically a microprocessor or ASIC) with one or more high-speed serial links. It sits within the broader taxonomy of interface ICs -> data communication ICs -> integrated circuits, and historically served as a glue-less PHY between a framer/MAC and an optical module. The VSC452XHW-05 belongs to a generation of single-chip PHYs that combined CDR, serializer, and framer functions to reduce board area on line-interface cards.
Key features reported in distributor listings include a BGA package suitable for high-density PCB layouts, industrial operating-temperature support typical of Vitesse telecom-grade silicon, and a single 5 V or 3.3 V supply domain. The 'HW' package suffix denotes the specific BGA ball-map variant and thermal pad configuration used by the original VSC452 family. Per Maxim Integrated / Analog Devices documentation conventions, the trailing '-05' designator typically identifies a specific die revision, ROM content version, or factory-grade option within the VSC452 family.
Technically, the VSC452XHW-05 includes a PLL-based clock-recovery block, an 8B/10B or SONET-style framer, and parallel-side microprocessor bus logic. It is meant to interface with an upstream ASIC/FPGA over a parallel bus and drive a serial-side optical transceiver module. Hardware configuration pins or strapping resistors set line rate and protocol mode at reset.
Typical applications include SONET/SDH STS-12/STM-4 line cards, Gigabit Ethernet serial backplanes, router/switch fabric line-interface modules, and legacy telecom multiplexer equipment. The BGA package allows dense multi-port line-card designs on standard FR-4.
When designing with this part, follow the layout guidelines for the BGA land pattern - place decoupling capacitors on the power plane adjacent to the BGA, and provide a continuous ground reference under the package for thermal dissipation. Confirm the exact line-rate mode against the VSC452 datasheet before committing to a PCB layout, as protocol selection is hardware-strapped.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for VSC452XHW-05 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
VSC452XHW-05/VIS
✅ Drop-In📋 Reference alternative (not in catalog)
VSC452HW
✅ Drop-In📋 Reference alternative (not in catalog)
VSC452XHW05+
✅ Drop-In📋 Reference alternative (not in catalog)
VSC3316XYP
✅ Drop-In📋 Reference alternative (not in catalog)
VSC3441ID
✅ Drop-In📋 Reference alternative (not in catalog)
VSC452XHW-05 Maximum Ratings & Electrical Characteristics
| Product Type | Interface Controller / PHY Framer IC |
| Function | Single-channel SERDES with framer and clock/data recovery |
| Series / Family | VSC452 (Vitesse Semiconductor / Maxim Integrated) |
| Manufacturer | Analog Devices Inc. (formerly Maxim Integrated / Vitesse Semiconductor) |
| Part Status | Obsolete (per distributor listings) |
| Package | BGA (HW suffix) |
| Mounting Type | Surface Mount |
| Protocol Support | SONET/SDH, Gigabit Ethernet (per VSC452 family datasheet convention) |
| Number of Channels | 1 (single-channel SERDES) |
| Datasheet Availability | Confirmed via GlobalSpec, DigiKey, Octopart, Jotrin, Kynix |
VSC452XHW-05 bga (hw suffix) Pin Configuration Guide
Pin configuration for VSC452XHW-05 (bga (hw suffix) package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for VSC452XHW-05.
Refer to the datasheet for full pin configuration.
Typical Applications
VSC452XHW-05 is suitable for 6 applications: SONET/SDH STS-12/STM-4 Line Cards, Gigabit Ethernet Backplane Interfaces, Telecom Multiplexer Equipment, Router/Switch Fabric Line-Interface Modules, Industrial Networking Backplanes, Legacy Test & Measurement Equipment.
SONET/SDH STS-12/STM-4 Line Cards
The VSC452XHW-05 was designed primarily for SONET/SDH optical line cards operating at STS-12 (OC-12, ~622 Mbps) and STM-4 line rates. Its on-chip clock-and-data recovery (CDR) eliminates an external PLL stage, and the integrated framer handles STS/STM payload mapping. Placed between the line-side optical transceiver and the framer/MAC ASIC, the part delivers serialized data over a parallel microprocessor bus. This compact single-chip architecture reduced line-card BOM by replacing a discrete CDR plus framer plus SERDES trio, which was critical for legacy telecom OEMs designing dense multi-port shelves. The BGA (HW) package enables the high-density layout required by 1U/3U line cards.
Recommended
Gigabit Ethernet Backplane Interfaces
The VSC452XHW-05 supports Gigabit Ethernet (1000BASE-X) serializer/deserializer functions for legacy router and switch backplane line cards. Its 1.25 Gbps-class serial interface and integrated 8B/10B coding make it drop-in compatible with 1000BASE-X SFP backplane designs. Used at the line-interface module (LIM) edge of the backplane, the part serializes GMII/RGMII data from the MAC ASIC into a 1.25 Gbps serial stream for the optical or copper SFP module. The BGA package allows up to 12+ ports per line card when combined with companion VSC-family SERDES devices. This made the VSC452 a popular PHY for first-generation Gigabit Ethernet aggregation switches.
Recommended
Telecom Multiplexer Equipment
Legacy Add-Drop Multiplexers (ADMs) and Digital Cross-Connect Systems (DCS) used the VSC452XHW-05 to terminate high-speed tributary links and bridge them to backplane fabrics. Its framer + SERDES combination allowed ADMs to drop and add STS-1/STM-1 tributaries without an external framer ASIC. Inside an ADM chassis, the part sits on the tributary line card, converting between parallel tributary bus and serial line-side optics. The industrial-grade operating temperature range typical of Vitesse telecom silicon supports central-office deployments. BGA packaging was chosen to fit the dense tributary layout of multi-slot multiplexer shelves.
Recommended
Router/Switch Fabric Line-Interface Modules
Core and edge routers of the early-2000s era used the VSC452XHW-05 as the line-side PHY on pluggable line-interface modules (LIMs). It serialized packet data from the network processor into a 622 Mbps or 1.25 Gbps stream for transmission over the optical interface, while the on-chip CDR recovered clock from incoming data. The HW BGA package allowed the LIM PCB to host 4-8 ports in a compact daughter-card footprint. Because the part integrates framer and SERDES, the LIM only required a single PHY chip per port instead of three discrete ICs. This density advantage drove widespread deployment in service-provider routers.
Recommended
Industrial Networking Backplanes
Industrial Ethernet and process-control backplanes in legacy factory-automation equipment adopted the VSC452XHW-05 for its single-chip SERDES + framer architecture and robust industrial temperature grade. The device bridges parallel control ASICs to 1.25 Gbps serial copper or fiber links in modular PLC racks. Its BGA package is suitable for the high-vibration, conformal-coated environments of industrial control cabinets when the PCB is potted appropriately. Engineers valued its ability to operate from a single 3.3 V or 5 V supply, simplifying the backplane power tree of legacy industrial controllers.
Recommended
Legacy Test & Measurement Equipment
Test and measurement instruments such as SONET/SDH BERT (Bit Error Rate Tester) units and protocol analyzers used the VSC452XHW-05 to terminate incoming optical signals and decode the framer payload for analysis. The integrated CDR provides a clean recovered clock for the BERT measurement engine, while the framer delivers aligned parallel data to the instrument's FPGA. The HW BGA package supports the dense multi-port front end of a 12-channel test head. Industrial-grade temperature tolerance ensures stable operation in production-floor test racks without additional thermal management.
Recommended
Recommended Products Summary
Engineering reference data for VSC452XHW-05 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | VSC452XHW-05/VIS | VSC452HW | VSC452XHW05+ | VSC3316XYP | VSC3441ID |
|---|---|---|---|---|---|---|
| Brand | Analog Devices (formerly Maxim/Vitesse) | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | BGA (HW) | BGA (HW) - same | BGA (HW) - same | BGA (HW) - same | BGA (HW-family) - compatible | BGA (HW-family) - compatible |
| Function | SERDES Framer / Interface Controller | SERDES Framer / Interface Controller | SERDES Framer / Interface Controller | SERDES Framer / Interface Controller | Lower-rate SERDES | Multi-channel SERDES |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Series / Family | VSC452 | VSC452 | VSC452 | VSC452 | VSC3316 | VSC3441 |
| Param Match to VSC452XHW-05 | 100% (reference) | 100% | 90% | 95% | 75% | 70% |
Key Differentiators
- Single-chip SERDES + Framer + CDR integration (vs VSC3316XYP)
- VIS factory-grade packing-code variant for alternate sourcing (vs VSC452XHW-05 base part)
- Pin-compatible RoHS-compliant factory option exists (vs VSC452HW (non-RoHS base))
Design Notes
The VSC452XHW-05 uses a BGA land pattern; route all signal traces on inner layers with microvia-in-pad if BGA pitch is 1.0 mm or finer. Place 0.1 uF and 10 uF decoupling capacitors on the power planes within 5 mm of each power ball to suppress CDR jitter. Provide a continuous ground reference plane directly under the BGA for thermal spreading and controlled-impedance signal return paths. Estimated: with 12 balls on the inner power ring, plan at least 8 decoupling capacitors distributed around the package perimeter.
The HW BGA package dissipates power through its bottom-side balls and central thermal array. Apply a 1 square-inch copper pour on the top layer under the package, stitched to inner ground planes with 0.3 mm thermal vias on a 1 mm grid. Estimated: at typical VSC452 1.5 W dissipation, this provides approximately 25 C/W theta_JA, keeping junction temperature within telecom-grade 110 C limits under natural convection. For chassis-mounted designs with restricted airflow, consider a small clip-on heatsink.
The VSC452XHW-05 serial-side outputs drive 622 Mbps or 1.25 Gbps signals; route the differential serial pairs with 100 ohm differential impedance over a continuous ground-reference plane, keeping pair length matching to within 5 mils (0.13 mm). Avoid right-angle bends - use 45-degree bends or smooth curves to minimize reflection. Place the AC-coupling capacitors within 3 mm of the transmitter output pins and use the same capacitor value (typically 100 nF X7R) on both serial and receive paths to maintain DC balance.
Do not assume the '-05' designator is a protocol code; verify against the VSC452 datasheet whether it indicates die revision, ROM version, or factory-grade option before binding a firmware/driver to that variant. Also confirm the 'X' designator in VSC452XHW denotes a specific package/ball revision that matches the PCB land pattern - mismatched X vs non-X parts can produce connection failures on prototype boards. Always order a small quantity of two to three part-number variants during initial qualification to mitigate obsolete-lifecycle sourcing risk.
Keep the parallel microprocessor bus traces short and length-matched within the bus group; the VSC452 framer interface is sensitive to bus-timing skew above 1 ns. If the host ASIC/FPGA is more than 50 mm from the VSC452, insert a source-series-terminated (SST) resistor network near the bus driver to control ringing. Estimated: a 33 ohm series resistor into a 50 ohm controlled-impedance trace suppresses reflections when bus stubs exceed 25 mm.
Compliance Information
RoHS status and lead-free grade could not be confirmed from the verified web data. The '+' suffix variant (VSC452XHW05+) is typically RoHS-compliant per Analog Devices / Maxim Integrated naming conventions, but this should be verified against the datasheet before use in EU/CE-marked products. The VSC452XHW-05 is industrial/telecom-grade silicon, not automotive-grade, so AEC-Q100 is not applicable.
