ADV7171KSZ - PAL/NTSC Video Encoder | Analog Devices
料号： ADV7171KSZ ✗ 停产ADV7171KSZ 概述
An integrated video encoder is a signal-processing IC that bridges a digital video pipeline and an analog composite or component output. In the product hierarchy, the ADV7171 belongs to video codecs and converters, within interface ICs, rather than acting as a general-purpose processor or display driver. Its principal purpose is to preserve useful picture information while translating digital video data into the modulation and level characteristics required by legacy analog television equipment.
Three headline characteristics define the ADV7171KSZ: 10-bit SSAF video conversion, digital PAL/NTSC encoding, and operation from a 4.75 V to 5.25 V analog supply. The 4.75 V to 5.25 V supply range supports conventional 5 V equipment designs, while the 44-MQFP package provides 44 externally accessible connections for digital data, control, clocking, power, and analog output functions. The manufacturer describes the family as suitable for high-performance DVD playback, portable video equipment, digital still cameras, laptop PCs, video games, and PC multimedia systems.
Advanced power management is a central feature of the device family. According to the Analog Devices ADV7170/ADV7171 datasheet, the encoder can use its SCRESET/RTC pin together with Mode Register 2 bits MR22 and MR21 to lock to an external video source. The real-time control mode automatically alters the subcarrier frequency to compensate for line-length variation. These functions allow an encoder to remain synchronized with an external source when its timing differs from the nominal internal reference.
Typical implementations place the ADV7171KSZ between a digital video source and an analog video connector or downstream display. A DVD player can feed decoded video into the encoder for compatibility with a PAL or NTSC television. Portable equipment can use the same conversion function when an analog video output is required, while PC video and multimedia designs use it as a bridge from digital graphics or decoded video to an external analog display.
The primary design consideration is that the ADV7171KSZ is a legacy-standard bridge rather than a modern HDMI or display-port transmitter. Designers must confirm signal timing, input word width, output standard, synchronization behavior, and analog output integration before layout release. The Analog Devices product page marks the ADV7171 as not recommended for new designs, so new products should evaluate current encoder options unless legacy equipment requires exact compatibility.
This page combines manufacturer capabilities, distributor availability, package information, lifecycle status, and verified replacement candidates. It also identifies where pin-level and pricing information remains unavailable, helping engineers distinguish confirmed device data from details that must be checked against the official datasheet and authorized distribution channels.
直接替换替代料： ADV7171KSZ ——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： ADV7171KSZ （相同外形与封装尺寸） ——差异在于 Package, Product Type, Supported Output Standards, Input Video Format.
ADV7171KSU
✅ 直接替换联系询价
查看数据手册 →ADV7171KSUZ
✅ 直接替换📋 参考替代料（不在目录中）
ADV7171KSZ 规格参数
| Product Type | Integrated digital PAL/NTSC video encoder |
| Input Format | Digital |
| Input Video Format | CCIR-601 4:2:2, 8-bit or 16-bit component video |
| Output Format | Analog |
| Supported Output Standards | PAL and NTSC analog baseband television |
| Video Architecture | 10-bit SSAF |
| Digital-to-Analog Channels | 4 DACs |
| Supply Voltage Range | 4.75 V to 5.25 V |
| 工作温度范围 | -40°C to +85°C |
| 封装 | 44-MQFP, 10 x 10 mm |
| 引脚数量 | 44 pins |
| 安装类型 | Surface Mount |
| External Video Synchronization | Supported through SCRESET/RTC and Mode Register 2 |
| Real-Time Control | Automatically alters subcarrier frequency to compensate for line-length variation |
ADV7171KSZ 44-mqfp, 10 x 10 mm 引脚配置指南
ADV7171KSZ（44-mqfp, 10 x 10 mm 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： ADV7171KSZ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ADV7171KSZ 适用于 6 应用s: DVD Player Analog Video Output, Digital Still Camera Video Interface, Laptop PC Analog Display Output, Video Game Console Compatibility, Portable Analog Video Accessory, Industrial Video Test and Service Equipment.
DVD Player Analog Video Output
The ADV7171KSZ fits DVD player designs that decode video digitally but must provide a PAL or NTSC baseband output. Its CCIR-601 4:2:2 interface accepts 8-bit or 16-bit component data, allowing the upstream decoder to feed the encoder without an additional digital-to-analog conversion stage. The 10-bit SSAF architecture and four DAC channels support the analog reconstruction path. Operation from 4.75 V to 5.25 V aligns with conventional analog sections, while the SCRESET/RTC synchronization controls help the encoder follow an external timing reference when line length varies. The trade-off is legacy-standard complexity: PAL/NTSC mode configuration, synchronization, and output filtering remain necessary, and the manufacturer no longer recommends the ADV7171 for new designs.
推荐
Digital Still Camera Video Interface
The ADV7171KSZ can provide a standardized analog television output from digital image or video data in portable camera equipment. Its digital CCIR-601 input provides a defined path for 8-bit or 16-bit 4:2:2 component data, while the encoder produces PAL or NTSC baseband video for viewing on a television or external monitor. The 4.75 V to 5.25 V supply range supports integration with 5 V analog circuitry, and the -40°C to +85°C rating is useful across portable and industrial temperature environments. Designers must account for analog output filtering, synchronization with the image pipeline, and connector isolation. The ADV7171KSZ is primarily appropriate for sustaining legacy equipment rather than selecting a new digital-video architecture.
推荐
Laptop PC Analog Display Output
The ADV7171KSZ is suited to legacy laptop and PC multimedia designs that must generate PAL or NTSC video for an external analog display. It accepts digital CCIR-601 4:2:2 video in 8-bit or 16-bit formats and converts that stream into an analog television signal, bridging the graphics or video pipeline to a conventional display connector. The 10-bit SSAF architecture and four DAC channels form the core output conversion path, while external synchronization controls support source locking. A practical implementation must verify horizontal and vertical timing, embedded synchronization handling, chroma filtering, and connector protection. Because modern PCs commonly use digital display interfaces, this part is most relevant to service, industrial, or long-life peripheral designs rather than new consumer platforms.
推荐
Video Game Console Compatibility
The ADV7171KSZ provides a practical conversion path for video game hardware designed around digital graphics pipelines but requiring analog PAL or NTSC television output. The encoder accepts 8-bit or 16-bit CCIR-601 4:2:2 data and generates a worldwide-compatible analog baseband signal through its four-channel DAC architecture. Its 5 V supply operation matches many legacy console boards, and the synchronization functions allow the encoder to track an external source when timing differs from its internal reference. Integration still requires careful clocking, mode selection, low-pass filtering, and correct amplitude calibration. As the manufacturer marks the family not recommended for new designs, the ADV7171KSZ is best suited to maintaining an established console or industrial gaming peripheral.
推荐
Portable Analog Video Accessory
The ADV7171KSZ can bridge a portable video source to an analog television output where modern digital connectors are unavailable. Its digital 4:2:2 input accepts either 8-bit or 16-bit component video, while the encoder produces PAL or NTSC baseband output for portable displays, projectors, or television equipment. The 10-bit SSAF conversion stage and four DACs support the analog signal chain, and the -40°C to +85°C specification covers a broad range of ambient conditions. Portable-product designers should minimize board area around the MQFP and carefully isolate the sensitive analog outputs. They must also verify power consumption and shutdown behavior because the exact quiescent-current and power-management limits are not present in the supplied verified snippets.
推荐
Industrial Video Test and Service Equipment
The ADV7171KSZ is applicable to industrial video test, repair, and signal-conversion equipment that needs to reproduce PAL or NTSC baseband video from a digital CCIR-601 source. The encoder's 10-bit SSAF architecture, four DAC channels, and external synchronization capabilities make it useful where precise source-to-analog signal reproduction is required. The SCRESET/RTC and Mode Register 2 controls can compensate for line-length variation in real-time control mode, supporting repeatable measurement across different source timings. Its -40°C to +85°C range suits industrial enclosures. Engineers should verify jitter, clock accuracy, DAC linearity, and output amplitude using the complete manufacturer datasheet because those numerical performance values are not included in the supplied search excerpts.
推荐
推荐产品汇总
工程参考数据： ADV7171KSZ ——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 | ADV7171KSU | ADV7171KSUZ |
|---|---|---|---|
| Package | 44-MQFP (10x10 mm) | 44-MQFP (10x10 mm) | 44-MQFP (10x10 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Product Type | Integrated digital PAL/NTSC video encoder | Video encoder | Video encoder |
| Input Format | Digital | Digital | Digital |
| Input Video | CCIR-601 4:2:2, 8-bit or 16-bit | CCIR-601 4:2:2, 8-bit or 16-bit | CCIR-601 4:2:2, 8-bit or 16-bit |
| Output Format | Analog PAL/NTSC baseband | Analog PAL/NTSC baseband | Analog PAL/NTSC baseband |
| Video Architecture | 10-bit SSAF | 10-bit SSAF | 10-bit SSAF |
关键差异点
- Verified direct family replacement path （对比 ADV7171KSU)
- Complete legacy video conversion in one IC （对比 ADV7171KSUZ)
- External-source synchronization support （对比 ADV7171KSU)
设计说明
Keep the digital video bus and clock traces away from the analog PAL/NTSC outputs because high-speed transitions can couple into the baseband signal and produce visible artifacts. Route the CCIR-601 inputs according to the manufacturer's recommended topology, provide a continuous ground reference, and place output filtering and connector-interface components close to the relevant device pins. The verified excerpts do not include a complete reference layout, so PCB implementation must be checked against the official ADV7170/ADV7171 datasheet.
Design the analog section around the confirmed 4.75 V to 5.25 V supply range and verify ripple, sequencing, and load requirements independently for the selected PAL or NTSC mode. Place local bypass capacitance at the supply pins using the manufacturer-recommended values and layout, and maintain a low-impedance return path for the encoder and its output network. Because verified power-consumption and quiescent-current values were not supplied, do not estimate thermal performance from the package name alone.
Validate input and output timing at the intended operating mode, including clock relationship, active video placement, line length, and synchronization behavior. The SCRESET/RTC path and Mode Register 2 controls can enable external-source locking and real-time subcarrier compensation, but configuration errors may cause horizontal drift or incorrect color timing. Use representative source timing and verify the result with video test equipment rather than relying only on nominal register settings.
Do not treat the ADV7171KSZ as a digital display transmitter: it produces legacy analog PAL/NTSC baseband output and requires suitable filtering, signal-level calibration, and connectors. Also do not assume that a same-family order code is interchangeable without checking temperature grade, exposed-pad implementation, and the full pin table. The official manufacturer page marks the ADV7171 as not recommended for new designs, so new projects should begin a formal product-lifecycle review.
合规信息
The supplied verified results do not provide RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. AEC-Q100 is marked not applicable because the identified product is an industrial/consumer video encoder rather than an automotive-qualified device.
