ADV7342BSTZ - 6x 11-Bit 297MHz Video Encoder | Analog Devices
MPN： ADV7342BSTZ ✗ 停產ADV7342BSTZ 概覽
A video encoder is a mixed-signal device that converts digital video data from a graphics processor or video decoder into standard analog video formats. It sits at the output stage of the video signal chain, downstream of the pixel-processing pipeline, and is classified within the broader family of digital-to-analog converter ICs, video interface ICs, and video display semiconductors.
Key features include six high-speed 3.3 V, 11-bit video DACs, 297 MHz DAC sampling for HD output, 4x oversampling to reduce output filtering requirements, support for NTSC, PAL, and HD tri-level sync formats, and integrated timing control. The 11-bit DAC resolution delivers high image fidelity with low differential gain and phase error, while the multi-DAC architecture allows simultaneous CVBS, S-Video, and component outputs from one device.
Architecturally, the ADV7342 combines an input pixel-port with format conversion, integrated SSPLL for precise pixel-clock recovery, programmable gain and offset control, and blanking/sync insertion before final digital-to-analog conversion. The high 297 MHz DAC rate with 4x oversampling moves the first Nyquist image band well above the video passband, simplifying reconstruction filtering and reducing visible artifacts.
Typical applications include DVD and Blu-ray player analog video output stages, set-top box composite and component outputs, professional video distribution and test equipment, and industrial display systems. The single-chip multi-format solution replaces multiple discrete DACs and sync generators, saving board space and BOM cost.
For design, note the device is marked Not Recommended for New Designs by Analog Devices; new designs should evaluate successor encoders, while the ADV7342 remains a valid choice for sustaining existing production. Ensure a clean 3.3 V analog supply and proper ground isolation for optimal DAC performance.
This page synthesizes distributor availability, drop-in alternatives, application guidance, and practical design notes not found in the manufacturer datasheet, providing engineers a decision-ready view of the ADV7342BSTZ.
直接替換替代品，適用於 ADV7342BSTZ — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ADV7342BSTZ （相同外形與佔位） — 差異在於 DAC Resolution, Function, Lifecycle Status, Control Interface, Oversampling.
ADV7343BSTZ
✅ 直接替換聯絡詢價
查看資料表 →ADV7341BSTZ
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ADV7391BSTZ
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ADV7392BSTZ
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ADV7393BSTZ
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ADV7342BSTZ 規格
| 功能 | Multiformat video encoder |
| Number of DACs | 6 |
| DAC Resolution | 11-bit |
| DAC Conversion Rate | 297 MHz |
| 供應電壓 | 3.3 V |
| Oversampling | 4x |
| Analog Outputs | CVBS, S-Video (Y/C), Component (YPrPb/RGB) |
| Video Formats Supported | Standard definition (SD), enhanced definition (ED), high definition (HD) |
| 封裝 | 64-LQFP (10x10 mm) |
| 安裝類型 | Surface Mount |
| Applications | DVD, Blu-Ray |
| Packaging | Tray |
| 生命週期狀態 | Not Recommended for New Designs (NRND) |
ADV7342BSTZ 64-lqfp (10x10 mm) 腳位配置指南
ADV7342BSTZ（64-lqfp (10x10 mm) 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： ADV7342BSTZ.
請參閱 資料表 以查看完整腳位配置。
典型應用
ADV7342BSTZ 適用於 6 應用s: DVD and Blu-ray Player Video Output, Set-Top Box Component and CVBS Outputs, Professional Video Test and Measurement Equipment, Security and Surveillance Monitor Outputs, Industrial HMI and Display Systems, Medical Imaging Display Output.
DVD and Blu-ray Player Video Output
The ADV7342BSTZ was designed expressly for DVD and Blu-ray player analog output stages, and DigiKey lists DVD and Blu-Ray among its primary applications. Its six 11-bit, 297 MHz DACs drive CVBS, S-Video, and component (YPrPb/RGB) outputs simultaneously from one 64-LQFP device, so a player can offer legacy composite connections alongside full component HD output without discrete sync generators. The 11-bit resolution preserves subtle shadow detail in movie content, while 4x oversampling relaxes the reconstruction filter roll-off requirements and suppresses visible DAC image-band artifacts. Placed at the output of the player's video processing chipset, it receives digital component data, performs blanking and sync insertion, and delivers directly drive-capable analog video. For sustainment of existing player platforms, the identical-footprint ADV7343BSTZ offers a drop-in path.
推薦
Set-Top Box Component and CVBS Outputs
Set-top boxes must serve a mixed installed base of televisions: older CRT units take composite CVBS, mid-range panels accept component YPrPb, and the ADV7342BSTZ covers both from a single chip. The six 11-bit DACs at 297 MHz handle standard, enhanced, and high definition broadcast modes, matching the resolution range delivered by digital TV tuners. The integrated timing control and sync insertion free the host SoC from generating analog-level sync, and the 3.3 V supply matches common STB logic rails, avoiding level-shift circuitry. In the signal path the encoder sits between the channel-decoder SoC and the output connectors, typically followed by a simple passive reconstruction filter thanks to 4x oversampling. Its NRND status makes it best suited to sustaining established STB platforms rather than new developments, where a current-generation encoder is the lower-risk choice.
推薦
Professional Video Test and Measurement Equipment
Video test instruments, pattern generators, and broadcast maintenance equipment rely on clean, precisely timed analog video outputs to characterize monitors and distribution chains. The ADV7342BSTZ fits this role because its 11-bit DAC resolution minimizes differential gain and phase errors that would otherwise contaminate measurement results, and its 297 MHz DAC clock supports high definition test patterns. The multi-DAC architecture lets one instrument generate CVBS, S-Video, and component signals in parallel, replacing discrete DAC banks with a single 64-LQFP IC and improving channel-to-channel matching since all outputs share one silicon timing reference. Programmable gain and offset control allow calibration against instrument reference standards. For equipment makers sustaining legacy test platforms, the pin-compatible ADV7343BSTZ provides supply continuity without PCB revision.
推薦
Security and Surveillance Monitor Outputs
Surveillance DVRs and security matrix switchers need local monitor outputs alongside network streams, and the ADV7342BSTZ converts the digital video from the recording engine into CVBS and S-Video for analog monitors and component YPrPb for higher-resolution displays. The six 11-bit DACs allow several independent monitor feeds from one device, useful in multi-channel CCTV head-ends where each output must stay synchronized with recorded content. Its 297 MHz DAC rate comfortably covers D1 and HD-loop-through resolutions, and 4x oversampling keeps reconstruction filtering simple on cost-sensitive security hardware. The 3.3 V single-supply operation integrates cleanly with DVR logic boards. For new security product development, note the NRND designation and evaluate current-generation encoders; for sustaining installed DVR platforms, the ADV7343BSTZ footprint-compatible option is the practical sustainment path.
推薦
Industrial HMI and Display Systems
Industrial human-machine interfaces, machine-vision monitors, and factory floor display terminals frequently retain composite or component analog video inputs for compatibility with installed displays and legacy test monitors. The ADV7342BSTZ generates these outputs from the digital frame buffer of an embedded processor, with its 11-bit DAC depth preserving the gray-scale fidelity needed for inspection imagery and gauge overlays. The 64-LQFP surface-mount package suits compact industrial controller boards, and single 3.3 V operation matches typical embedded logic supplies, simplifying power-tree design in DIN-rail and panel-mount hardware. Its support for SD through HD formats covers everything from small text-mode HMIs to machine-vision displays. Because the part is NRND, new industrial designs should prefer current-generation encoders, while platforms already built around the 64-LQFP footprint can sustain with the ADV7343BSTZ.
推薦
Medical Imaging Display Output
Ultrasound consoles, endoscopy carts, and patient-monitoring stations often need standard analog video outputs for archival recorders, external review monitors, and hospital AV distribution. The ADV7342BSTZ's 11-bit DACs reproduce the wide dynamic range of grayscale medical imagery without banding, and its component (YPrPb/RGB) output path supports higher-quality connections to diagnostic displays, while CVBS serves legacy documentation recorders. The precise timing control of the encoder keeps captured images time-consistent for frame-accurate procedures review. Its 3.3 V supply and single 64-LQFP package integrate cleanly into medical electronics boards where board space and power budgets are constrained. Given the NRND status, new medical platforms should select a current-generation encoder, but existing validated medical devices can sustain production using the pin-compatible ADV7343BSTZ without requalification of the PCB layout.
推薦
推薦產品摘要
工程參考資料，適用於 ADV7342BSTZ — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ADV7343BSTZ | ADV7341BSTZ | ADV7391BSTZ | ADV7393BSTZ |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
主要差異化特點
- Six 11-bit DACs enable simultaneous CVBS + S-Video + component outputs (對比ADV7391BSTZ)
- Pin-compatible family sustainment path exists (對比ADV7343BSTZ)
- 297 MHz DAC rate supports HD component output with 4x oversampling (對比ADV7341BSTZ)
- Honest trade-off: NRND lifecycle status (對比ADV7391BSTZ)
設計說明
Power the ADV7342BSTZ from a clean 3.3 V rail. As a six-DAC 297 MHz video encoder, it combines digital switching current with sensitive analog DAC current; separate the analog supply pin from the digital rail with an LC or ferrite filter, and use local 100 nF ceramic decoupling on every supply pin plus bulk 10 uF per rail. Avoid sharing the analog supply with noisy loads such as processor cores. Verify supply sequencing against the datasheet to prevent DAC latching during power-up.
Keep the analog DAC output traces short, direct, and impedance-controlled to the reconstruction filter and video connectors, routed over a continuous ground plane. Partition the layout into digital (pixel port, control) and analog (DAC outputs, references) zones, with analog ground tied to digital ground at a single star point to prevent digital return currents from modulating the DAC outputs. Follow the land pattern in the manufacturer datasheet for the 64-LQFP footprint.
The part is Not Recommended for New Designs per Analog Devices, so confirm lifecycle and stock before committing a new BOM; for new boards prefer a current-generation encoder, and for sustainment consider the same-footprint ADV7343BSTZ. Do not omit the external reconstruction filter after the DAC outputs: with 4x oversampling it can be simple, but removing it entirely leaves DAC image-band energy visible as artifacts. Also verify video format configuration registers against the target SD/ED/HD standard during firmware bring-up.
合規資訊
Compliance details are not stated in the retrieved distributor and manufacturer listings; confirm RoHS/REACH status on the Analog Devices ADV7342 product page before procurement.
