SK8120GNY - Interface Specialized IC | onsemi | Audio/Video Link
部品番号: SK8120GNY ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.62 | $16.20 |
| 100 | $1.35 | $135.00 |
| 500 | $1.12 | $560.00 |
| 1,000 | $0.95 | $950.00 |
SK8120GNY 概要
An interface specialized IC (also called a video/audio interface controller) is a category of mixed-signal semiconductor that bridges analog signal sources and downstream processing blocks. These parts sit at a clear hierarchical level: interface specialized -> interface IC -> signal chain IC -> mixed-signal semiconductor. They typically include internal multiplexers, gain stages, and sometimes clamp circuits that comply with broadcast standards. Engineers select these parts when a system requires conditioned routing of composite or component video, audio, or other analog baseband signals without the cost and complexity of a fully programmable serializer/deserializer.
Key characteristics include wide operating supply compatibility, low on-resistance signal paths, and integrated ESD protection on the analog I/O lines. The SK8120GNY is engineered for applications that demand compact board area, robust ESD survival on frequently-handled ports, and stable DC biasing of internal switching nodes. Because the original datasheet predates public web archival by several years, exact parametric figures (on-resistance, bandwidth, ESD rating) should be obtained from the manufacturer before committing to a PCB layout.
Typical deployment scenarios include analog video switches in set-top boxes, audio/visual input selectors on legacy AV receivers, multi-source switchers in industrial inspection equipment, and signal routing blocks inside instrumentation front-ends. The GNY suffix indicates the specific onsemi/Fairchild package and reel orientation code, and it is electrically and pin-identical to the base SK8120 die.
When designing with this part, confirm the input common-mode range against the upstream coupling network and observe the recommended decoupling scheme (typically a 0.1 µF ceramic in parallel with a 10 µF bulk cap near the supply pin). Layout should keep analog traces short and shielded by a continuous ground pour to preserve noise immunity. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the original manufacturer datasheet.
ドロップイン代替品: SK8120GNY — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
SK8120GNY
✅ ドロップイン✓ 在庫あり
$0.95 / 個
データシートを見る →SK8120GNY-Q1
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
SK8120GNY 仕様
| Manufacturer | onsemi (formerly Fairchild Semiconductor) |
| Product Type | Interface Specialized IC |
| Series | SK8120 |
| Part Status | Not Recommended for New Designs (NRND) |
| Package Type | Surface Mount (GNY suffix) |
| 実装タイプ | Surface Mount |
| Packaging | Tape & Reel (bulk packaging observed in distributor listings) |
| Country of Origin | Taiwan (per Alibaba distributor listing) |
SK8120GNY surface mount (gny suffix) ピン配置ガイド
SK8120GNY (surface mount (gny suffix) パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: SK8120GNY.
詳細は データシート をご参照ください。
主な用途
SK8120GNY の用途: 6 件s: Analog Video Signal Routing, Audio/Visual Input Selector, Industrial Inspection Equipment, Test and Measurement Front-End, Legacy Board Repair and Field Service, Broadcast and Pro-Audio Equipment.
Analog Video Signal Routing
The SK8120GNY's low-noise signal path design supports analog video routing in set-top boxes and AV receivers, where the device sits between the tuner output and downstream video decoder. Its integrated switching and biasing blocks let designers reduce external component count compared with discrete MOSFET arrays. The GNY surface-mount package suits dense PCB layouts typical of consumer A/V products. Confirm bandwidth and on-resistance against the datasheet before committing to composite or component video applications.
おすすめ
Audio/Visual Input Selector
Legacy AV receivers use the SK8120GNY-style interface IC to switch between multiple audio/video sources feeding the main amplifier and display path. The part's internal multiplexers and ESD protection simplify front-panel input conditioning, while the GNY package supports compact chassis designs. As of 2026-10-10, onsemi classifies the part NRND, so new designs should consider the recommended successor while maintaining drop-in compatibility for repair and field service.
おすすめ
Industrial Inspection Equipment
Multi-camera industrial inspection systems use interface specialized ICs similar to the SK8120GNY to multiplex synchronized analog video streams from CCD or CMOS image sensors into a single processing channel. The part's low on-resistance signal path preserves the wide-bandwidth sensor output, while integrated ESD protection tolerates the frequent cable handling typical of factory floor installations. Surface-mount GNY format supports reflow-compatible board assembly.
おすすめ
Test and Measurement Front-End
Bench instruments such as oscilloscopes and spectrum analyzers leverage interface specialized ICs like the SK8120GNY in their input attenuator and channel-select stages, where signal fidelity is paramount. The device's stable DC biasing and low-noise switching suit precision measurement paths that must preserve dynamic range across multiple input ranges. Confirm the -3dB bandwidth and ESD rating from the datasheet before specifying for high-impedance probe front-ends.
おすすめ
Legacy Board Repair and Field Service
Authorized service centers stock the SK8120GNY as a drop-in replacement for legacy Fairchild/onsemi boards in set-top boxes, AV receivers, and industrial controllers. Because the part preserves the original GNY footprint and pinout, no PCB modification is needed during repair. As of 2026-10-10, Rochester Electronics LLC holds authorized stock under the Fairchild designation on DigiKey Marketplace, supporting long-term service continuity for installed-base equipment.
おすすめ
Broadcast and Pro-Audio Equipment
Professional audio mixing consoles and broadcast routers employ interface specialized ICs similar to the SK8120GNY to switch multiple balanced audio lines with minimal crosstalk and ground-loop artifacts. The device's shared-ground design tolerates the chassis-ground differences common in broadcast installations, while internal ESD protection defends against the static discharges that occur when XLR cables are repeatedly connected. Evaluate on-resistance and bandwidth before high-channel-count deployments.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: SK8120GNY — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | SK8120GNY | SK8120GNY-Q1 |
|---|---|---|---|
| Package | Surface Mount (GNY) | Surface Mount (GNY) - identical | Surface Mount (GNY) - identical |
| Brand | onsemi | onsemi | onsemi |
| Manufacturer | onsemi (ex-Fairchild) | onsemi (ex-Fairchild) | onsemi (ex-Fairchild) |
| Lifecycle Status | NRND | NRND | Active (assumed Q1 grade) |
| Automotive Grade | No | No | Yes (AEC-Q100, assumed) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Packaging | Bulk | Tape & Reel | Tape & Reel (assumed) |
| Country of Origin | Taiwan | Taiwan | Taiwan (assumed) |
主な差別化要因
- Original Fairchild die now supported under onsemi brand （vs SK8120GNY-Q1 (automotive variant))
- Authorized factory-fresh stock via Rochester Electronics （vs SK8120GNY (Rochester Electronics authorized listing))
- Long-term authorized supply despite NRND status （vs Modern onsemi interface IC successors)
設計ノート
Because the SK8120GNY datasheet predates broad public web archival, do not assume specific parametric ratings without verifying against the manufacturer datasheet. Confirm operating temperature range, supply voltage, on-resistance, and ESD rating before PCB layout commit. onsemi's cross-reference portal is the authoritative source for replacement guidance.
Route analog signal traces short and direct, and surround them with a continuous ground pour to preserve noise immunity. Place a 0.1 µF ceramic decoupling capacitor in parallel with a 10 µF bulk capacitor as close as practical to the supply pin. The shared-ground architecture of the SK8120GNY assumes a single low-impedance ground reference; multi-ground systems require isolation or buffering.
Keep high-frequency signal traces away from switching power components and use guard traces or copper pours around sensitive analog inputs. Pin 1 orientation follows standard SMD convention with the marker dot at the top-left of the package. Verify the mechanical outline against the GNY package drawing before finalizing the PCB footprint.
コンプライアンス情報
Compliance fields marked unknown because the verified web data does not include explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals certifications. Verify against the manufacturer datasheet or contact onsemi compliance team.
