ADV7189KST - Multiformat SDTV Video Decoder | Analog Devices
Артикул: ADV7189KST ✗ Снят с производстваADV7189KST Обзор
A video decoder is an interface IC that recovers digital pixel and timing information from an analog composite or component video signal. The ADV7189KST combines analog-to-digital conversion, synchronization recovery, color demodulation, and decoding in one device. Its automatic format detection lets a single design accept several television standards rather than requiring separate decoders for NTSC, PAL, and SECAM sources. This integration reduces external signal-chain complexity in professional video equipment, television receivers, set-top boxes, and video-recording products.
The three integrated 12-bit ADCs are clocked from a single source and provide 54 MHz noise-shaped conversion. Noise shaping moves quantization noise away from the signal band, an approach that can improve useful in-band conversion performance without requiring three separate high-speed converters. The digital output supports programmable CCIR601 and CCIR656 word widths of 20, 16, 10, or 8 bits. These interface options let the decoder connect to video processors whose parallel buses operate at different widths.
The device supports NTSC M, N, and 4.43 variants, PAL B, D, G, H, I, M, and N variants, and SECAM. Its automatic standard detection is particularly useful in broadcast, surveillance, industrial monitoring, and legacy video-conversion equipment that must ingest multiple regional formats. According to the Analog Devices ADV7189 datasheet, the decoder converts the incoming analog baseband signal into 4:2:2 component-video data compatible with the listed CCIR601 and CCIR656 formats.
Typical implementations use the ADV7189KST ahead of a video processor, scaler, encoder, or digital transport block. Because the package is an 80-lead LQFP, the device requires a substantial fine-pitch footprint and careful routing of analog inputs, digital outputs, clocks, controls, and supply connections. Verified source data identifies the component as a surface-mount commercial-grade video decoder in an 80-terminal LQFP package.
Engineers should use the manufacturer datasheet for the exact analog input topology, pin assignments, register map, electrical limits, clock requirements, and recommended external components. The verified data confirms the multiformat decoding, converter resolution, supported standards, output formats, package, and commercial temperature grade, but it does not provide a complete pin table or verified supply-current and voltage figures. Those parameters remain marked as data needed rather than being estimated.
This page consolidates the verified distributor and manufacturer information for ADV7189KST, separates confirmed decoder capabilities from unavailable engineering data, and provides practical application and sourcing guidance. It also identifies verified same-family candidates while avoiding unsupported claims of cross-brand, pin-to-pin equivalence.
Аналоги без доработки для ADV7189KST — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с ADV7189KST (тот же форм-фактор и посадочное место) — отличается по DAC Resolution, Package, Product Type.
ADV7195KS
✅ Прямая замена ⚠️ Характеристики не провереныУточнить цену
Открыть даташит →ADV7197KS
✅ Прямая замена ⚠️ Характеристики не провереныУточнить цену
Открыть даташит →ADV7171KS
✅ Прямая замена ⚠️ Характеристики не провереныУточнить цену
Открыть даташит →ADV7189KST Характеристики
| Характеристики отсутствуют |
Руководство по цоколевке ADV7189KST в корпусе standard
Цоколевка для ADV7189KST (корпус standard). Нумерация выводов, функции и схемы подключения определены в техническом описании производителя. Обратитесь к нему для точного посадочного места и рекомендаций по пайке.
Нет подробных данных о распиновке для ADV7189KST.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
ADV7189KST подходит для 6 применениеs: Multiformat Television Receiver, Set-Top Box Analog Input, Video Player and Recorder Front End, Broadcast and Studio Monitoring, Industrial Analog Video Inspection, Legacy Video Conversion and Capture.
Multiformat Television Receiver
The ADV7189KST fits the analog front end of a television receiver that must accept NTSC, PAL, and SECAM sources without separate decoder boards. Its automatic format detection handles the standards-selection burden in software, while the three integrated 54 MHz, 12-bit noise-shaped ADCs perform simultaneous multichannel analog conversion. The resulting 4:2:2 data can feed downstream processing through a 20-, 16-, 10-, or 8-bit CCIR601/CCIR656 interface. Designers should confirm timing and synchronization details against the manufacturer datasheet before fixing the system clock and video-processing topology.
Рекомендуется
Set-Top Box Analog Input
The ADV7189KST is appropriate for a set-top box or multimedia player that must retain compatibility with legacy analog television standards while processing video digitally. Automatic NTSC, PAL, and SECAM detection simplifies source handling, and the CCIR656 output provides a defined path to a downstream scaler, processor, or encoder. The 12-bit conversion resolution supports a high-quality processing pipeline, but the usable system resolution still depends on analog bandwidth, noise performance, clocking, and the selected digital output width. PCB routing must preserve analog, clock, and digital-signal integrity across the 80-lead LQFP.
Рекомендуется
Video Player and Recorder Front End
In a video player or recorder, the ADV7189KST can convert incoming analog baseband video into standardized 4:2:2 component data for digital processing and storage. Its support for NTSC, PAL, and SECAM makes it useful for multi-region playback equipment, while selectable CCIR601/CCIR656 widths allow connection to buses with different data capacities. The three 54 MHz, 12-bit noise-shaped converters are clocked from a single source, simplifying synchronization of the three analog channels. Final signal-integrity performance and permissible input configurations must be validated using the manufacturer reference design.
Рекомендуется
Broadcast and Studio Monitoring
The ADV7189KST supports professional monitoring and broadcast-adaptation equipment that must recognize multiple analog television standards. Automatic format detection allows one decoder path to support NTSC M, N, and 4.43, PAL B, D, G, H, I, M, and N, and SECAM. Its 4:2:2 component output provides a consistent representation for frame timing measurement, conversion, or downstream monitoring electronics. The 80-lead LQFP package requires careful fanout and multilayer routing, and the verified data does not include differential-impedance, jitter, or analog-noise limits, so those specifications should come directly from the manufacturer documentation.
Рекомендуется
Industrial Analog Video Inspection
The ADV7189KST can serve as the decoding front end for industrial inspection or legacy machine-vision equipment that receives standard analog television signals. Converting the composite input into digital 4:2:2 data permits subsequent pixel-level processing, storage, or transmission. Automatic multiformat detection increases flexibility when equipment is deployed across regions using different television systems. The three common-clock, 54 MHz, 12-bit noise-shaped ADCs offer a compact implementation, but the analog front end still requires the manufacturer-recommended termination, filtering, grounding, and decoupling arrangements. Exact input bandwidth and latency must be verified before process-timing budgets are assigned.
Рекомендуется
Legacy Video Conversion and Capture
The ADV7189KST is suitable for cards and appliances that capture legacy broadcast video for conversion into a digital workflow. Its automatic NTSC, PAL, and SECAM recognition reduces configuration burden, and the selectable CCIR601/CCIR656 output widths allow connection to capture logic, a frame buffer, or an FPGA pipeline. Noise-shaped 12-bit conversion is valuable when preserving subtle analog-image information is important, although system-level noise depends on the complete analog path. The 14 mm by 14 mm 80-lead LQFP is physically substantial, so designers should confirm board area and assembly capability before committing to this package.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ADV7189KST — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ADV7195KS | ADV7197KS | ADV7171KS |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 80-LQFP (14x14) | 80-LQFP (14x14) | 80-LQFP (14x14) | 80-LQFP (14x14) |
| Product Type | Multiformat SDTV video decoder | Video decoder | Video decoder | Video decoder |
Ключевые отличия
- Integrated multiformat analog front end (против ADV7195KS)
- Four selectable digital output widths (против ADV7197KS)
- Single-clock three-channel converter architecture (против ADV7171KS)
Заметки по проектированию
Treat the analog video inputs, the shared 54 MHz clock domain, and the parallel digital outputs as separate routing classes. Follow the manufacturer reference layout for decoupling, grounding, and signal termination, because the verified search data does not provide trace widths or via counts. Keep switching or high-current return paths away from the analog input pins, and route the digital bus with controlled return paths to limit simultaneous-switching noise.
Do not infer that every 80-lead ADV71xx decoder is automatically interchangeable with the ADV7189KST. Although the three listed alternatives use the same family and package class, their register maps, supported formats, clock requirements, and specific pin assignments must be compared line by line. Confirm analog input topology, supply sequencing, output enable behavior, and software initialization before treating a migration as a drop-in replacement.
The ADV7189KST converts analog baseband video with three shared-clock, 54 MHz, 12-bit noise-shaped ADCs, so clock quality can affect conversion performance and downstream digital timing. Use the manufacturer's recommended clock source and layout, provide continuous return paths, and avoid routing the clock adjacent to sensitive analog inputs. Confirm output timing margins using the datasheet specifications for the selected 8-, 10-, 16-, or 20-bit CCIR601/CCIR656 mode.
The verified data does not state the ADV7189KST supply voltage or current, so supply-network values cannot be calculated responsibly from the available information. Use the manufacturer datasheet for the operating range, typical and maximum current, startup behavior, and required bypass capacitors. Place the specified local decoupling capacitors directly beside their associated supply pins and maintain a low-impedance ground connection under the exposed package area.
Информация о соответствии
The verified pages identify a commercial-grade component but provide no explicit RoHS, REACH, halogen-free, conflict-minerals, or automotive-qualification declaration. Compliance must be confirmed using current manufacturer documentation for the exact ordering code.
