ADV7191KST - 6-Channel 10-Bit Video Encoder | Analog Devices
料号： ADV7191KST ✓ 量产中ADV7191KST 概述
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.
直接替换替代料： ADV7191KST ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ADV7191KST （相同外形与封装尺寸） ——差异在于 Product Type.
ADV7191KSTZ
✅ 直接替换📋 参考替代料（不在目录中）
ADV7190KST
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADV7192KST
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADV7193KST
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADV7194KST
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →ADV7191KST 规格参数
| 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 |
| 输出类型 | Analog baseband television signal |
| Macrovision Feature | Not incorporated in ADV7191; incorporated in ADV7190 |
ADV7191KST standard 引脚配置指南
ADV7191KST（standard 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： ADV7191KST.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ADV7191KST 适用于 6 应用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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： ADV7191KST ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Six integrated video DAC outputs （对比 ADV7191KSTZ)
- No Macrovision Revision 7 processing in the ADV7191 （对比 ADV7190KST)
- Programmable analog reconstruction filters （对比 ADV7192KST)
设计说明
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.
合规信息
The supplied verified excerpts do not provide explicit environmental or material-compliance declarations for ADV7191KST. No compliance status has been inferred.
