ADV7194KST - 54 MHz Extended Video Encoder | Analog Devices
料号： ADV7194KST ✗ 停产ADV7194KST 概述
A video encoder is a signal-conversion semiconductor that transforms digital component-video data into a standardized analog television output. Within the broader signal-chain hierarchy, the ADV7194 belongs to video encoding and decoding ICs, multimedia processors, interface ICs, and ultimately semiconductors. Its digital inputs accept formatted CCIR-601 component-video streams, while its analog outputs recreate luminance and chrominance signals suitable for conventional broadcast, video-production, DVD, PC-video, and multimedia equipment.
Key features include 54 MHz oversampling, support for eight input word lengths, and compatibility with multiple analog television systems. The available data identifies the device as a professional extended-10-bit encoder and confirms 80 terminals in an LQFP package. Its commercial temperature grade and square gull-wing package suit established professional video equipment designs. Exact clock frequency, analog output resolution, supply voltage, current consumption, and operating-temperature limits are not stated in the supplied source excerpts and should be confirmed against the manufacturer datasheet.
Technically, the ADV7194 combines digital input processing with analog video synthesis. Its 54 MHz oversampling architecture provides additional sampling capability relative to the incoming CCIR-601 video data, while the supported 8-, 10-, 16-, and 20-bit formats permit integration with digital video sources having different word widths. The broad NTSC and PAL compatibility enables one encoder design to address several regional analog video standards without changing the digital source architecture.
Typical uses include DVD and PC-video subsystems, professional broadcast equipment, video capture cards, multimedia appliances, digital-to-analog video conversion, and legacy analog-video test systems. It is most appropriate when a design already supplies CCIR-601 4:2:2 data and specifically requires composite or component-style analog television outputs. It is not a general-purpose image scaler, HDMI transmitter, or modern streaming-media codec.
Designers should verify the exact pin assignments, synchronization requirements, supply rails, clocking scheme, DAC settling behavior, and output filtering recommendations from the complete manufacturer datasheet before layout release. The 80-pin LQFP also requires careful fanout and a stable ground-plane strategy. Digital video inputs should be routed away from sensitive analog outputs, with separate return paths and appropriately terminated clock and synchronization signals.
This page combines verified manufacturer and distributor information with application guidance, comparison criteria, sourcing details, and practical design considerations. It is intended to help engineers evaluate the ADV7194KST quickly while preserving the distinction between confirmed source data and specifications requiring datasheet verification.
直接替换替代料： ADV7194KST ——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： ADV7194KST （相同外形与封装尺寸） ——差异在于 Product Type, DAC Resolution, Package, Integrated DAC Count.
ADV7194KSTZ
✅ 直接替换📋 参考替代料（不在目录中）
ADV7195KS
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →ADV7177KSZ
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →ADV7171KSU
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →ADV7194KST 规格参数
| Product Type | Professional extended-10 video encoder IC |
| Video Function | Digital CCIR-601 4:2:2 component-video to analog baseband television conversion |
| Oversampling Frequency | 54 MHz |
| Digital Input Formats | 8-, 10-, 16-, and 20-bit CCIR-601 4:2:2 component-video data |
| Supported Analog Standards | NTSC, PAL B/D/G/H/I, PAL N, and PAL-60 |
| 封装 | 80-lead LQFP (14 mm x 14 mm) |
| Terminal Count | 80 terminals |
| 安装类型 | Surface Mount |
| Terminal Form | Gull Wing |
| Package Shape | Square |
| Temperature Grade | Commercial |
| Input Interface | Digital CCIR-601 4:2:2 component video |
| Output Interface | Standard analog baseband television signal |
| Video Subsystem Category | Video encoder, decoder, and converter IC |
ADV7194KST square 引脚配置指南
ADV7194KST（square 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： ADV7194KST.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ADV7194KST 适用于 6 应用s: DVD Video Output, PC Video Capture, Professional Broadcast Conversion, Digital-to-Analog Video Adapter, Multimedia Video Output, Video Test and Measurement.
DVD Video Output
The ADV7194KST fits a DVD player or video-processing board that receives digital CCIR-601 4:2:2 data and must produce conventional analog television output. Its 54 MHz oversampling architecture and support for 8-, 10-, 16-, and 20-bit input widths provide flexibility when connecting digital video engines with different word-length configurations. NTSC and PAL compatibility allows one board design to address multiple television regions. The implementation should follow the manufacturer reference circuit, preserve a continuous clock path, and separate sensitive analog outputs from high-speed digital video routing. Because the supplied data does not specify supply rails or output-filter requirements, those details must be verified from the complete datasheet before layout release.
推荐
PC Video Capture
The ADV7194KST is appropriate for a legacy PC-video capture card that must convert digital component-video data into analog NTSC or PAL signals. The encoder accepts CCIR-601 4:2:2 data in four word lengths, including the 8-bit and 10-bit formats commonly encountered in video pipelines, while 16-bit and 20-bit support can accommodate higher-precision digital sources. The 80-lead LQFP provides access to the digital inputs, synchronization signals, supplies, and analog video circuitry, but it also requires careful fanout and multilayer routing. Designers should verify clock jitter, synchronization polarity, DAC settling, and output bandwidth using the Analog Devices reference design before production.
推荐
Professional Broadcast Conversion
The ADV7194KST can serve as the final digital-to-analog video conversion stage in professional monitoring or broadcast equipment that still uses NTSC or PAL baseband signals. Its professional extended-10-bit positioning, 54 MHz oversampling, and support for both NTSC and several PAL variants are relevant when equipment must preserve multiple analog output modes from a common digital video source. A production design should treat the encoder clock and synchronization as critical signals, maintain short return paths on analog outputs, and verify output filtering and channel bandwidth against the manufacturer guidance. Exact picture quality, temperature range, supply voltage, and DAC specifications remain unavailable in the supplied excerpts and require confirmation from the full datasheet.
推荐
Digital-to-Analog Video Adapter
The ADV7194KST is suitable for a dedicated digital-to-analog video adapter that accepts an existing CCIR-601 source and generates television-compatible output for displays, recorders, or test equipment. Supporting 8-, 10-, 16-, and 20-bit input formats allows the adapter to accommodate different digital sources without converting each source to a fixed intermediate width. The 54 MHz oversampling feature supports the encoder's analog signal-generation role, while compatibility with NTSC, PAL B/D/G/H/I, PAL N, and PAL-60 broadens regional applicability. PCB implementation should separate analog and digital return paths, provide stable clock distribution, and follow the manufacturer's recommended component placement and output-network values.
推荐
Multimedia Video Output
The ADV7194KST can be used in multimedia appliances and legacy video peripherals that must expose conventional analog video from a digital multimedia pipeline. The component is explicitly associated with DVD, PC-video, and multimedia encoder applications and supports both NTSC and PAL-family outputs. Its four supported input word widths provide interfaces to digital engines operating at different precision levels, while the 80-lead LQFP exposes the necessary digital, control, power, and analog connections. Since exact operating current and power-supply limits are not included in the verified data, thermal and power budgeting must wait for confirmation of those values. Layout should minimize analog trace coupling and provide the reference decoupling network specified by Analog Devices.
推荐
Video Test and Measurement
The ADV7194KST is useful in video test equipment that must generate standard analog baseband signals from controlled digital component-video data. The available 8-, 10-, 16-, and 20-bit input formats allow test patterns to be processed at different source resolutions, while 54 MHz oversampling and broad NTSC/PAL support support multi-standard test configurations. An instrument implementation must provide deterministic video timing, reliable synchronization, and repeatable analog-output behavior. Engineers should consult the complete manufacturer application circuit for recommended output filters, clocking, DAC configuration, and test-point access. The supplied verified snippets do not identify internal test patterns or exact analog specifications, so those capabilities should not be assumed without reviewing the full datasheet.
推荐
推荐产品汇总
工程参考数据： ADV7194KST ——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 | ADV7194KSTZ | ADV7195KS | ADV7197KS | ADV7177KSZ | ADV7171KSU |
|---|---|---|---|---|---|---|
| Package | 80-LQFP (14 mm x 14 mm) | 80-LQFP (14 mm x 14 mm) | 80-LQFP (14 mm x 14 mm) | 80-LQFP (14 mm x 14 mm) | 80-LQFP (14 mm x 14 mm) | 80-LQFP (14 mm x 14 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Primary Function | Digital video encoder | Digital video encoder | Video encoder family candidate | Video encoder family candidate | Video encoder family candidate | Video encoder family candidate |
关键差异点
- Confirmed multi-standard analog output support （对比 ADV7194KSTZ)
- Broad digital-input word-length support （对比 ADV7195KS)
- Documented 54 MHz oversampling architecture （对比 ADV7197KS)
- Eighteen confirmed digital-video input assignments （对比 ADV7177KSZ)
设计说明
Separate the 54 MHz-related clock and digital video routing from the analog television outputs. Keep the encoder on a continuous ground plane, provide short return paths beneath high-speed digital routes, and place decoupling and clock-distribution components according to the manufacturer reference design. Avoid routing digital video nets beneath sensitive analog outputs where coupling could create visible artifacts.
Do not substitute a same-package video encoder solely from its 80-lead LQFP dimensions. The supplied evidence does not provide complete pin maps for the alternatives. Before using ADV7194KSTZ, ADV7195KS, ADV7197KS, ADV7177KSZ, or ADV7171KSU, compare every power, ground, clock, synchronization, digital-video, control, and analog-output assignment and confirm that the register and timing architecture are equivalent.
Treat the encoder clock as a critical analog-video timing signal. Use the reference circuit's source and termination arrangement, maintain a continuous reference plane, and keep clock traces away from high-current switching nodes. Synchronization polarity and setup/hold behavior must be verified from the complete ADV7194 documentation before connecting source-specific horizontal and vertical synchronization signals.
合规信息
The supplied verified excerpts do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable because the ADV7194KST is a commercial video encoder rather than an automotive-qualified device.
