ADV7191KST - 6-Channel 10-Bit Video Encoder | Analog Devices
部品番号: ADV7191KST ✓ 生産中ADV7191KST 概要
A video encoder is a signal-conversion integrated circuit that transforms digital component-video data into analog composite, component, or related baseband outputs. Within the broader semiconductor hierarchy, the ADV7191KST belongs to the video encoder and interface IC family, where it bridges digital video processing systems and legacy analog broadcast equipment. Its integrated DACs reduce the number of separate converters required in professional video signal paths.
The principal features include six 10-bit DAC outputs, 54 MHz oversampling, support for 8-bit and 16-bit CCIR-601 4:2:2 input, and programmable luminance and chrominance filtering. The manufacturer describes the ADV7190 and ADV7191 as functionally equivalent, with the ADV7190 additionally incorporating the Macrovision Revision 7 anti-copy algorithm. The ADV7191 therefore favors systems that need the encoder architecture without that specific Macrovision feature.
The converter is designed for digital-video equipment that must generate multiple analog television outputs while preserving programmable filtering control. Its 10-bit DAC resolution provides 1024 theoretical quantization levels per output, while 54 MHz oversampling supports filtered analog reconstruction. Because the six outputs are integrated, board designers can reduce external DAC count while retaining separate baseband signal paths where the application requires them.
Typical uses include broadcast and studio video conversion, professional monitoring, video test and measurement equipment, industrial imaging, video-distribution racks, and legacy analog-video interfaces connected to digital processing. System-level qualification should include checking supported video timing, output bandwidth, synchronization behavior, and external analog-filter requirements against the manufacturer datasheet before releasing a production design.
The most important design consideration is preserving the intended analog signal path. DAC output filtering, ground-plane continuity, power-supply decoupling, and clock or synchronization layout can materially affect output quality. Designers should follow the manufacturer’s recommended application circuit and verify their external component values rather than inferring values from this overview.
This page consolidates the verified manufacturer description, source links, packaging constraints, drop-in alternatives, application guidance, and engineering trade-offs for engineers evaluating the ADV7191KST. It adds design-oriented context beyond a distributor listing while clearly separating verified facts from data requiring confirmation from the full datasheet.
ドロップイン代替品: ADV7191KST — 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。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ADV7191KST （同一形状・フットプリント） — 相違点: Product Type.
ADV7191KSTZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADV7190KST
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ADV7192KST
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ADV7193KST
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ADV7194KST
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →ADV7191KST 仕様
| Product Type | Integrated digital video encoder |
| Integrated DAC Count | 6 outputs |
| DAC Resolution | 10 bit |
| Oversampling Frequency | 54 MHz |
| Digital Video Input | CCIR-601 4:2:2 component video |
| Input Word Length | 8 bit or 16 bit |
| Supported Video Standards | NTSC, PAL B/D/G/H/I, PAL M, PAL N, and PAL-60 |
| Luminance Filter | Programmable |
| Chrominance Filter | Programmable |
| 出力タイプ | Analog baseband television signal |
| Macrovision Feature | Not incorporated in ADV7191; incorporated in ADV7190 |
ADV7191KST standard ピン配置ガイド
ADV7191KST (standard 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: ADV7191KST.
詳細は データシート をご参照ください。
主な用途
ADV7191KST の用途: 6 件s: Broadcast Video Standards Conversion, Professional Video Monitoring, Video Test and Measurement, Industrial Video Inspection, Video Distribution and Rack Equipment, Legacy Analog Video Interfaces.
Broadcast Video Standards Conversion
The ADV7191KST fits broadcast conversion equipment requiring NTSC or PAL generation from digital CCIR-601 4:2:2 data. Its six integrated 10-bit DAC outputs can provide several analog baseband channels without requiring six separate external DAC packages. The verified 54 MHz oversampling and programmable luminance and chrominance filters support filtered analog reconstruction. Engineers should verify synchronization, timing, output-level, and bandwidth requirements against the complete datasheet before production release.
おすすめ
Professional Video Monitoring
The ADV7191KST is appropriate for professional monitoring and picture-verification equipment that must present digital video through analog baseband outputs. Six 10-bit DAC channels provide independent conversion paths, while programmable luminance and chrominance filtering allows the output characteristics to be tuned for the installation. The ADV7191 supports 8-bit and 16-bit CCIR-601 4:2:2 input and several PAL and NTSC output modes, reducing the need for separate converter hardware in multi-output monitoring systems.
おすすめ
Video Test and Measurement
The ADV7191KST can serve in video test equipment that generates analog NTSC or PAL waveforms from controlled digital component-video data. Its 10-bit DAC resolution provides 1024 quantization levels per output, and 54 MHz oversampling supports reconstructed analog output filtering. Multiple integrated DACs simplify multi-channel signal-generation architectures, although instrumentation accuracy also depends on external clocking, reconstruction filters, calibration, and output-enable sequencing specified by the manufacturer.
おすすめ
Industrial Video Inspection
The ADV7191KST is suitable for industrial inspection systems that retain an analog video output for cameras, recorders, or legacy inspection monitors. The encoder accepts digital 4:2:2 data and converts it into standard analog baseband signals, allowing an existing analog display chain to remain while the image-processing source becomes digital. Six independently accessible 10-bit DAC outputs can support composite and auxiliary analog paths, subject to the exact output configuration, timing, and filtering requirements in the datasheet.
おすすめ
Video Distribution and Rack Equipment
The ADV7191KST is useful in broadcast and professional video distribution racks where multiple analog outputs are needed from a digital source. Integrating six 10-bit DACs reduces board area and component count compared with six discrete converters, while the programmable filters support controlled analog reconstruction. The resulting design must preserve synchronized video timing, route analog outputs according to the selected standard, and implement the recommended filtering and grounding to prevent distortion or crosstalk.
おすすめ
Legacy Analog Video Interfaces
The ADV7191KST provides a practical bridge when a modern digital video processor must drive a legacy NTSC or PAL display, recorder, or processing input. Its support for 8-bit and 16-bit CCIR-601 4:2:2 input simplifies adaptation from digital acquisition and processing pipelines, while six 10-bit DAC outputs permit more than one analog destination. Integration reduces external converter count, but signal-integrity checks remain necessary for long video traces and analog reconstruction filters.
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: ADV7191KST — 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 | ADV7191KSTZ | ADV7190KST | ADV7192KST | ADV7193KST | ADV7194KST |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 80-lead LFCSP | 80-lead LFCSP - same | 80-lead LFCSP - same | 80-lead LFCSP - same | 80-lead LFCSP - same | 80-lead LFCSP - same |
主な差別化要因
- Six integrated video DAC outputs （vs ADV7191KSTZ)
- No Macrovision Revision 7 processing in the ADV7191 （vs ADV7190KST)
- Programmable analog reconstruction filters （vs ADV7192KST)
設計ノート
Treat the six analog outputs as separate high-fidelity video paths. Route each channel with a continuous ground reference, minimize loop area, and follow the manufacturer’s recommended output-filter topology and impedance. Because the device uses 54 MHz oversampling, clock and data-routing quality can affect reconstructed video even when the nominal DAC resolution is unchanged.
Place the required input, output, bypass, and reference-network components close to their associated pins according to the datasheet’s application diagram. Keep analog and digital return currents separated until they join at the device ground reference. Confirm exposed-pad soldering, thermal-via, and package-land-pattern details from the current package drawing rather than relying only on the KST suffix.
Do not select a candidate solely from the ADV7191 family name. The verified cross-reference identifies ADV7191KSTZ, while the manufacturer notes a functional distinction between ADV7190 and ADV7191 involving Macrovision Revision 7. Before substitution, compare exact temperature grade, supply limits, package drawing, pin names, register map, output enable behavior, and startup sequence.
コンプライアンス情報
The supplied verified excerpts do not provide explicit environmental or material-compliance declarations for ADV7191KST. No compliance status has been inferred.
