ADV7344BSTZ - 6-Channel 14-Bit Video DAC | Analog Devices
料号： ADV7344BSTZ ✗ 停产ADV7344BSTZ 概述
A video encoder is a signal-conversion integrated circuit that transforms digital video data into analog television signals. In the signal-chain hierarchy, the ADV7344BSTZ sits between a digital video source and an analog display or broadcast subsystem. Noise-shaped DAC architecture reduces unwanted high-frequency spectral content, while oversampling and digital reconstruction filters shape the analog output spectrum. The converter therefore belongs to the broader ADC/DAC, signal-processing IC, and power-management-adjacent semiconductor categories.
The principal features include six independent 14-bit video DAC channels, 20-bit and 30-bit high-definition input support, and 16-times DAC oversampling at 216 MHz. The encoder supports standard-definition, enhanced-definition, and high-definition formats. It is compliant with SMPTE 296M for 720p and 1035i operation, as identified by the manufacturer product documentation. Six output channels also allow simultaneous generation of composite, S-Video, and component signals from one encoder.
The internal noise-shaping and reconstruction architecture is intended to improve analog-video image quality while maintaining a high digital input bandwidth. The 74.25 MHz input capability accommodates common high-definition digital video streams, while the 216 MHz DAC oversampling rate supports the required reconstruction filtering. Configuration registers allow the host processor to select output formats and operating modes, reducing the need for external video-processing logic.
Typical uses include DVD and Blu-ray player output stages, set-top boxes, video walls, broadcast equipment, professional video processors, and high-definition television electronics. The six-channel architecture is particularly useful when a system must provide legacy composite and S-Video connections alongside component RGB or YPrPb outputs.
PCB implementation requires careful high-speed routing and controlled return paths for digital inputs and analog outputs. Place decoupling capacitors near the supply pins, keep analog output traces short and isolated from switching nodes, and use a continuous ground plane where the package and board stackup permit it. Confirm the exposed-pad connection, output load requirements, and synchronization features against the manufacturer pin-description table and application guidance.
This page organizes the device's multiformat capabilities, verified specifications, application guidance, replacement constraints, and same-package comparison information into a practical engineering reference for designers evaluating legacy analog-video output requirements.
直接替换替代料： ADV7344BSTZ ——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： ADV7344BSTZ （相同外形与封装尺寸） ——差异在于 Package.
ADV7344BSTZ-3
✅ 直接替换📋 参考替代料（不在目录中）
ADV7344BSTZ 最大额定值与电气特性
| Product Type | Multiformat video encoder |
| Video DAC Channel Count | 6 channels |
| Video DAC Resolution | 14 bits per channel |
| Digital Video Input Support | 20-bit and 30-bit high-definition input |
| Maximum Digital Input Clock | 74.25 MHz |
| 电源电压 | 3.3 V |
| DAC Oversampling | 16x at 216 MHz |
| Analog Output Formats | Composite CVBS, S-Video YC, and component YPrPb or RGB |
| Supported Video Definitions | Standard definition, enhanced definition, and high definition |
| SMPTE 296M Compliance | 720p and 1035i compliant |
| Converter Architecture | Noise-shaped video DAC |
| 封装 | 64-LFCSP-VQ, 9 mm x 9 mm |
| 安装类型 | Surface mount |
ADV7344BSTZ 64-lfcsp-vq, 9 mm x 9 mm 引脚配置指南
ADV7344BSTZ（64-lfcsp-vq, 9 mm x 9 mm 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： ADV7344BSTZ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ADV7344BSTZ 适用于 6 应用s: DVD and Blu-ray Player Output, Broadcast Video Processing Equipment, Set-Top Box and TV Electronics, Professional Video Wall Controllers, Video Test and Measurement Equipment, Legacy Video Conversion Products.
DVD and Blu-ray Player Output
The ADV7344BSTZ fits DVD and Blu-ray player output stages that must provide several analog-video formats from a digital video bus. Its six 14-bit noise-shaped DAC channels can support composite CVBS, S-Video YC, and component YPrPb or RGB, while 20-bit and 30-bit high-definition input support covers digital streams arriving at rates up to 74.25 MHz. The 16-times oversampling architecture operates at 216 MHz to shape the analog output spectrum. Because the manufacturer marks the device as not recommended for new designs, it is best suited to maintaining established platforms or retaining a required legacy output interface.
推荐
Broadcast Video Processing Equipment
The ADV7344BSTZ is suitable for broadcast and professional video equipment requiring simultaneous composite, S-Video, and component outputs. Six 14-bit DAC channels provide parallel conversion resources for multiple analog destinations, while the 74.25 MHz digital input rate supports high-definition source data. SMPTE 296M compliance is identified for 720p and 1035i operation, making the encoder relevant to legacy SD, ED, and HD signal chains. The design must account for the 3.3 V supply and the 64-LFCSP-VQ package when planning decoupling, exposed-pad assembly, and analog-output routing.
推荐
Set-Top Box and TV Electronics
The ADV7344BSTZ supports set-top box and television designs that must retain analog-video compatibility while accepting digital high-definition content. Its 74.25 MHz input support handles 20-bit and 30-bit digital streams, and the six 14-bit DAC channels can drive CVBS, YC, and YPrPb or RGB outputs through the appropriate analog stages. This mixed-format capability is useful in regions where legacy television connections coexist with digital video processing. The primary engineering trade-off is lifecycle status: because the part is not recommended for new designs, it should be selected when maintaining an established platform or satisfying a defined legacy-interface requirement.
推荐
Professional Video Wall Controllers
The ADV7344BSTZ can serve as an analog-video output stage in professional video-wall controllers requiring several formats from one digital source. Its six 14-bit noise-shaped DACs allow composite, S-Video, and component outputs to be generated simultaneously, while 16-times oversampling at 216 MHz supports controlled spectral shaping. The device accepts high-definition digital data at up to 74.25 MHz, which is useful for feeding downstream displays and long analog cable runs in controlled installations. PCB implementation should minimize analog trace length, maintain a continuous ground reference, and place supply decoupling close to the device pins to limit supply disturbance.
推荐
Video Test and Measurement Equipment
The ADV7344BSTZ is useful in video test equipment that must generate several analog formats for display, capture, or interoperability testing. Six 14-bit DAC channels provide simultaneous CVBS, YC, and YPrPb or RGB generation, while the 74.25 MHz input capability supports high-definition test patterns. Its noise-shaped architecture and 216 MHz oversampling are relevant when evaluating signal quality across SD, ED, and HD formats. The 64-LFCSP-VQ package requires careful high-speed layout and exposed-pad handling, while the 3.3 V operating rail must be conditioned so that digital switching activity does not degrade the analog outputs.
推荐
Legacy Video Conversion Products
The ADV7344BSTZ is appropriate for legacy video-conversion products that need to bridge digital sources to composite, S-Video, or component displays. Its six 14-bit DAC channels reduce the number of separate output converters required when one product supports multiple connector standards. Digital input data can be 20-bit or 30-bit at rates up to 74.25 MHz, and the encoder supports SD, ED, and HD operating modes. For new industrial or consumer products, a currently recommended encoder may offer a better lifecycle path; this device is strongest in repair, migration, and continuation applications with an existing 64-LFCSP-VQ design.
推荐
推荐产品汇总
工程参考数据： ADV7344BSTZ ——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 | ADV7344BSTZ-3 |
|---|---|---|
| Package | 64-LFCSP-VQ (9x9 mm) | 64-LFCSP-VQ (9x9 mm) |
| Brand | Analog Devices | Analog Devices |
| Product Type | Multiformat video encoder | Multiformat video encoder |
| Video DAC Channels | 6 channels | 6 channels |
| DAC Resolution | 14 bits per channel | 14 bits per channel |
| Digital Input Support | 20-bit and 30-bit high-definition input | 20-bit and 30-bit high-definition input |
| Maximum Input Clock | 74.25 MHz | 74.25 MHz |
| Supply Voltage | 3.3 V | 3.3 V |
| DAC Oversampling | 16x at 216 MHz | 16x at 216 MHz |
| Supported Video Definitions | SD, ED, and HD | SD, ED, and HD |
| SMPTE 296M Support | 720p and 1035i compliant | 720p and 1035i compliant |
关键差异点
- Six integrated analog-video DAC channels （对比 ADV7344BSTZ-3)
- 74.25 MHz high-definition input capability （对比 ADV7344BSTZ-3)
- 16-times DAC oversampling at 216 MHz （对比 ADV7344BSTZ-3)
- Multiformat output coverage （对比 ADV7344BSTZ-3)
设计说明
Keep the digital-video input routes short, continuous, and referenced to a solid ground plane. Route the 74.25 MHz digital interface away from the six analog outputs, particularly where a board contains switching regulators or high-current digital circuitry. Match the manufacturer’s recommended layer stack and termination arrangement, and avoid introducing stubs or test-pad structures that disrupt high-speed edge rates.
Place the required 3.3 V decoupling network immediately adjacent to the supply and ground pins. Each supply connection should have a local high-frequency capacitor with a short, low-inductance return path, supplemented by bulk capacitance according to the manufacturer’s layout guidance. Verify ripple, transient response, and exposed-pad connection before energizing analog outputs because supply disturbance can appear directly in the generated video signal.
Do not treat the 64-LFCSP-VQ outline as proof that every ordering variant is electrically interchangeable. Confirm the exact ADV7344 ordering code, temperature grade, pin functions, and lifecycle status against the current Analog Devices documentation. Also verify output loading and scaling requirements for each CVBS, YC, or YPrPb or RGB channel before applying the same external termination network to every output.
Separate analog-video outputs from digital clocks, processors, and switching-power stages. Use short output paths, avoid right-angle routing where practical, and provide a low-impedance ground reference beneath analog routes. The six DAC channels operate from the same device, so unequal output loading or poorly matched termination can create channel-to-channel amplitude and timing differences that become visible in multipurpose test patterns.
合规信息
The available product documentation confirms SMPTE 296M support for 720p and 1035i but does not provide the requested material-compliance declarations. The ordering suffix indicates a lead-free finish, but this is not treated as a standalone compliance declaration.
