ADV7282WBCPZ - 10-Bit SDTV Video Decoder | Analog Devices
부품 번호: ADV7282WBCPZ ✗ 단종ADV7282WBCPZ 개요
An SDTV video decoder is an interface IC that converts analog composite-video signals into a digital pixel stream for subsequent processing or display. In the broader device hierarchy, the ADV7282 belongs to video interfaces, interface ICs, and semiconductors. Its principal function is to sample incoming video, separate luminance and chrominance information, convert the analog representation into 10-bit digital data, and serialize that data according to a defined digital-video timing format.
The ADV7282 provides 10-bit video decoding with 4-times oversampling, differential inputs, and an integrated deinterlacer. Its ITU-R BT.656 output uses eight parallel pixel-data pins and a line-locked clock. The I2C interface supports programmable video controls, including brightness, contrast, saturation, and hue. These features make the decoder suitable for analog video capture, broadcast and professional video equipment, security imaging, and legacy video interfaces requiring digital conversion.
The ADV728x family architecture includes an adaptive five-line, two-dimensional comb filter designed to improve separation of chrominance and luminance from composite video. The filter automatically adapts its processing mode to the video standard and signal quality. This behavior is particularly useful when composite-video signals contain noise, color bleed, or other artifacts that must be separated before digital rendering. The family architecture is documented in the ADV7280/ADV7281/ADV7282/ADV7283 Hardware Reference Manual.
Typical applications include SDTV video capture, professional broadcast equipment, surveillance systems, video test and measurement equipment, and embedded systems that need to retain an analog composite-video input while passing digital video to a processor or display pipeline. Differential inputs can simplify signal-chain design when the source supports balanced analog video, while the line-locked clock gives downstream digital-video logic a dedicated timing signal.
Designers should follow the manufacturer pin-description table and recommended application circuit when assigning tracks, power, grounding, and signal-conditioning components. The analog and digital sections require careful layout because video decoding performance depends on clean differential input routing, controlled return paths, and stable supply references. The device is specifically marked by Analog Devices as not recommended for new designs, so it is most appropriate for maintenance, continuity, and previously qualified designs rather than new platform creation.
This page consolidates the decoder identity, functional characteristics, lifecycle position, and design considerations into an engineer-focused reference. It also distinguishes genuine drop-in options from functionally similar devices that use different packages, preventing a nominal decoder substitution from becoming a hidden PCB-rework problem.
드롭인 대체품: ADV7282WBCPZ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
ADV7282A
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ADV7282A-M
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ADV7282WBCPZ 사양
| Product Type | 10-bit, 4-times-oversampled SDTV video decoder |
| Video Input | Differential analog composite video |
| Video Output Format | ITU-R BT.656 |
| Digital Video Data Output | 8 parallel data pins, P0 to P7 |
| Output Clock | Line-locked clock (LLC) |
| Control Interface | I2C serial interface |
| Video Bit Depth | 10 bit |
| Sampling Architecture | 4-times oversampled |
| Signal Processing | Adaptive five-line, 2D comb filter |
| Deinterlacer | Integrated |
| Adjustable Video Controls | Brightness, contrast, saturation, and hue |
| 패키지 | 32-LFCSP, 5 x 5 mm |
| 실장 유형 | Surface mount |
ADV7282WBCPZ 32-lfcsp, 5 x 5 mm 핀 구성 가이드
ADV7282WBCPZ(32-lfcsp, 5 x 5 mm 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: ADV7282WBCPZ.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ADV7282WBCPZ 적합 용도: 6 애플리케이션s: SDTV Video Capture, Broadcast Video Monitoring, Professional Video Equipment, Security Camera Video Interface, Video Test and Measurement, Legacy Medical Video Equipment.
SDTV Video Capture
The ADV7282WBCPZ fits an SDTV capture stage requiring analog composite video to be converted into a digital pixel stream. Its 10-bit resolution and 4-times-oversampled architecture preserve more source detail than an 8-bit conversion path, while the integrated deinterlacer prepares interlaced input for downstream digital processing. The P0 to P7 outputs carry ITU-R BT.656 data and the line-locked clock provides a dedicated timing reference. Differential analog inputs are useful when the source and board architecture support balanced video signaling, reducing susceptibility to common-mode interference in longer or noisier cable paths.
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Broadcast Video Monitoring
Broadcast monitoring equipment can use the ADV7282WBCPZ to decode an analog composite-video feed before passing it into a digital display or analysis chain. Its adaptive five-line, two-dimensional comb filter is designed to improve luminance and chrominance separation, which is valuable when composite content exhibits color bleed or related artifacts. The I2C interface allows a controller to adjust brightness, contrast, saturation, and hue, while the parallel ITU-R BT.656 output supports deterministic integration with FPGA, ASIC, or embedded video-processing logic.
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Professional Video Equipment
Professional video equipment benefits from the ADV7282WBCPZ when a legacy analog composite-video input must coexist with modern digital processing. The decoder provides 10-bit data, 4-times oversampling, and integrated deinterlacing in one device, reducing the number of separate conversion and processing stages required. Differential inputs can improve signal integrity when the board layout supports them. The I2C register interface provides a practical way for system firmware to calibrate image controls and adapt the decoder to different source characteristics without external analog adjustment components.
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Security Camera Video Interface
The ADV7282WBCPZ can serve as the analog-video front end in a surveillance or industrial camera system that must feed a digital processor. Its differential inputs suit properly balanced analog-video sources, while the 10-bit conversion and adaptive comb filtering help maintain useful image detail from composite signals. The ITU-R BT.656 output and line-locked clock provide a standardized handoff to downstream image-processing hardware. Because the decoder is marked not recommended for new designs, it is most appropriate for extending the life of an existing camera platform rather than starting a newly designed surveillance product.
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Video Test and Measurement
The ADV7282WBCPZ is suitable for test equipment that must ingest a composite-video source and convert it to digital data for measurement or display. The 10-bit output, 4-times oversampling, and dedicated line-locked clock provide a defined digital representation for downstream analysis. I2C access to brightness, contrast, saturation, and hue supports controlled test procedures and operator adjustment. Differential analog routing and careful separation of analog, digital, and clock paths are important for repeatable measurements, particularly when small changes in noise or timing behavior are being evaluated.
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Legacy Medical Video Equipment
Qualified legacy medical imaging systems can use the ADV7282WBCPZ to preserve an analog composite-video interface while retaining a digital processing path. The decoder converts the incoming composite signal to 10-bit ITU-R BT.656 data, and its adaptive comb filter supports improved luminance and chrominance separation. The available brightness, contrast, saturation, and hue controls can help integrate the decoded image with an existing display pipeline. For any new medical product, lifecycle and regulatory qualification requirements should be reviewed carefully because Analog Devices marks the ADV7282 family as not recommended for new designs.
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추천 제품 요약
엔지니어링 참조 데이터: ADV7282WBCPZ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ADV7282A | ADV7282A-M |
|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Package | 32-LFCSP (5 x 5 mm) | 32-LFCSP (5 x 5 mm) | 32-LFCSP (5 x 5 mm) |
| Video Decoder Resolution | 10 bit | 10 bit | 10 bit |
| Sampling Architecture | 4-times oversampled | 4-times oversampled | 4-times oversampled |
| Digital Output Format | ITU-R BT.656 | ITU-R BT.656 | ITU-R BT.656 |
| Pin Compatibility | ADV7282 pinout | Same pinout and software compatible | Same pinout and software compatible with ADV7282-M |
| Control Interface | I2C | I2C | I2C |
| Analog Video Inputs | Differential inputs | Differential inputs | Differential inputs |
| Deinterlacer | Integrated | Integrated | Integrated |
주요 차별점
- Documented pinout and software compatibility with the original ADV7282 platform (vs ADV7282A)
- Direct option for ADV7282-M processor-interface designs (vs ADV7282A-M)
- Purpose-built 10-bit composite-video decoding function (vs ADV7282A)
설계 노트
Route each differential analog-video input as a compact, symmetric pair with a continuous reference plane beneath the pair. Keep the differential traces away from the line-locked clock and P0 to P7 outputs, and avoid crossings between sensitive input nets and switching or high-current paths. Use the manufacturer application circuit and package drawing to establish component placement, because analog trace geometry directly affects coupled noise and common-mode rejection.
Place the input, output, and bypass components at the locations shown in the Analog Devices recommended application circuit. Connect the LFCSP exposed pad using the specified land pattern, solder mask, and paste pattern rather than improvising a thermal-pad connection. Preserve the manufacturer’s ground-plane arrangement and keep digital return currents from crossing the analog input area. Exact capacitor values and pad dimensions must be taken from the ADV7282 data sheet.
Treat the line-locked clock as a dedicated timing signal and route it away from the differential analog inputs. Confirm output timing against the digital receiver and account for trace length, loading, and ground reference along the P0 to P7 bus. If the composite source is unbalanced, do not connect it directly to a differential input without the input network shown in the manufacturer reference design; otherwise, signal attenuation and common-mode behavior can compromise decoding.
The ADV7282 is marked not recommended for new designs, so the most common sourcing mistake is treating an unqualified family member as an exact board replacement. Verify the complete ordering code, package suffix, temperature grade, and lifecycle status before substituting. For firmware, verify that the replacement is software compatible with the original configuration rather than assuming that matching decoder functions guarantees identical register behavior.
규정 준수 정보
The Analog Devices product information identifies the ADV7282 as not recommended for new designs. Specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals declarations were not included in the cited manufacturer and distributor information and remain unconfirmed.
