ADV7179BCPZ - NTSC/PAL Video Encoder | Analog Devices
部品番号: ADV7179BCPZ ✗ 生産終了ADV7179BCPZ 概要
A video encoder is a signal-conversion IC that translates a digital video stream into a conventional analog composite or component-video output. The ADV7179 sits within the broader video-processing hierarchy of digital interface logic, video encoder, video converter IC, and signal-processing semiconductor. Its role is especially useful when a modern digital video pipeline must connect to displays, recorders, test equipment, or broadcast-style processing blocks that still accept analog baseband video.
The device accepts 8-bit CCIR-601 4:2:2 component data and includes three 10-bit DACs for analog video generation. Its I2C-compatible, two-wire serial interface uses serial data and serial clock signals, allowing a microprocessor to configure operating modes. Two slave addresses support bus arrangements involving multiple peripherals. The integrated encoder supports NTSC and PAL standards and provides advanced power-management functionality for portable and mobile video equipment.
The 40-lead LFCSP-VQ package uses a 6 mm × 6 mm land pattern and surface-mount assembly. Configuration is handled through the serial interface rather than a parallel control bus, reducing the number of host-controller connections required for programmable analog-video output. The three-DAC architecture provides separate analog outputs for component or related baseband-video functions while preserving a compact digital input architecture.
Typical uses include digital cameras, mobile-phone video accessories, portable-video equipment, video-capture systems, professional analog-video monitoring, and broadcast-video test equipment. Because the converter accepts an established digital component-video format, it is particularly suitable for systems that already produce CCIR-601 data but require an NTSC or PAL analog output stage.
Designers should verify the clocking, serial-interface levels, output topology, and external termination required by the target video standard. The analog output network, power-supply routing, exposed-pad connection, and multilayer board return paths must follow the manufacturer’s recommended application circuit. Adequate decoupling near the supply pins is essential for stable video generation.
This page combines the manufacturer’s device identity, package information, operating-status guidance, and verified replacement guidance with engineering-focused application and design guidance. It also distinguishes genuine same-footprint alternatives from the broader redesign choices engineers should consider when maintaining an older analog-video design.
ドロップイン代替品: ADV7179BCPZ — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ADV7179BCPZ （同一形状・フットプリント） — 相違点: Package, Product Type, Analog Supply Voltage, Control Interface, Digital Video Input.
ADV7180BCPZ
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →ADV7181DBCPZ
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ADV7179BCPZ 仕様
| Product Type | Integrated digital video encoder |
| Supported Video Standards | NTSC and PAL |
| Digital Video Input | CCIR-601 4:2:2 component video |
| Digital Input Word Length | 8-bit |
| Video DAC Resolution | 10-bit |
| Video DAC Count | 3 DACs |
| 動作電源電圧 | 3 V to 3.6 V |
| Control Interface | I2C-compatible 2-wire serial interface |
| Serial Interface Signals | 2 signals: serial data and serial clock |
| I2C Slave Addresses | 2 slave addresses |
| パッケージ | 40-lead LFCSP-VQ |
| Package Dimensions | 6 mm × 6 mm |
| Total Lead Count | 40 leads |
| 実装タイプ | Surface mount |
| Power Management | Advanced power management |
| ライフサイクル状態 | Not Recommended For New Designs |
ADV7179BCPZ 6 mm × 6 mm ピン配置ガイド
ADV7179BCPZ (6 mm × 6 mm パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: ADV7179BCPZ.
詳細は データシート をご参照ください。
主な用途
ADV7179BCPZ の用途: 6 件s: Digital Camera Analog Video Output, Mobile Phone Video Accessory, Portable Video Equipment, Video Capture and Monitoring, Broadcast Video Test Equipment, Legacy Consumer Video Interface.
Digital Camera Analog Video Output
The ADV7179BCPZ fits legacy camera systems in which a digital imaging pipeline produces CCIR-601 4:2:2 8-bit component data but still requires an analog baseband-video connection. Its three 10-bit DACs convert the digital video stream into NTSC or PAL-compatible outputs, while the 3 V to 3.6 V supply range suits compact camera electronics. The I2C-compatible two-wire interface allows the host controller to configure operating modes without a parallel programming bus. The primary design consideration is output-network implementation: engineers must follow the manufacturer’s recommended analog stage, maintain controlled return paths, and validate the DAC outputs with the intended television standard and camera timing.
おすすめ
Mobile Phone Video Accessory
The ADV7179BCPZ is applicable to a legacy mobile-phone or portable-media accessory that must expose NTSC or PAL composite video from a digital video source. It accepts 8-bit CCIR-601 4:2:2 data and provides three 10-bit DAC channels, allowing analog output generation within a compact 6 mm × 6 mm package. Advanced power management is relevant when the accessory operates from a 3 V to 3.6 V system rail. Configuration over the I2C-compatible serial interface simplifies host connections, but developers should verify signal levels, startup behavior, and analog-output loading against the phone platform. Because the encoder is not recommended for new designs, continuing legacy production requires an explicit supply plan.
おすすめ
Portable Video Equipment
The ADV7179BCPZ supports portable-video equipment that retains an analog television output for preview, capture, or playback. Its three 10-bit DACs and support for NTSC and PAL provide the required conversion from a digital 8-bit CCIR-601 4:2:2 source. The compact 40-lead LFCSP-VQ package is suitable for space-constrained assemblies, and the two-wire I2C-compatible interface limits control-path complexity. Portable-system implementation should pay particular attention to power-management sequencing, analog-video settling, and ground integrity. The manufacturer’s recommended output and decoupling networks should be implemented exactly because portable power constraints can magnify supply ripple and clock-related picture errors.
おすすめ
Video Capture and Monitoring
The ADV7179BCPZ can serve as the final analog-video conversion stage in a capture or monitoring product that accepts digital component video and must drive conventional NTSC or PAL equipment. It converts 8-bit CCIR-601 4:2:2 data through three 10-bit DACs, while serial configuration allows a system controller to select encoder modes. This is useful in service equipment, test products, and legacy production monitors where an HDMI or other modern interface alone would not provide compatibility. The design must preserve the timing relationship between video data and clock, terminate outputs correctly, and isolate analog return currents from digital switching paths to avoid visible artifacts.
おすすめ
Broadcast Video Test Equipment
The ADV7179BCPZ is applicable to video test equipment that needs a controllable analog baseband output alongside digital instrumentation. Its NTSC and PAL support, three 10-bit DACs, and serial host-control interface make it suitable for generating standardized test signals from CCIR-601 4:2:2 data. The 3 V to 3.6 V operating range allows integration with low-voltage test hardware, and the 6 mm × 6 mm LFCSP-VQ package keeps the encoder compact. Measurement accuracy remains dependent on clock quality, power decoupling, output loading, and board symmetry. Engineers should characterize both standard modes and verify that the host software implements the correct register sequence before using the device in calibrated measurement systems.
おすすめ
Legacy Consumer Video Interface
The ADV7179BCPZ is useful when maintaining a consumer video product that must translate digital component video into an analog television signal for accessories or displays. Its support for NTSC and PAL, three 10-bit DAC outputs, and I2C-compatible configuration provides a compact bridge between digital processing and older video interfaces. The 40-lead LFCSP-VQ package enables reuse of an established footprint, but firmware and analog circuitry still require verification for each product variant. In volume programs, confirm reel formatting, lead time, and lifecycle strategy before releasing additional units. For new products, compare the redesign cost against the lifecycle constraints of this legacy encoder.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ADV7179BCPZ — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | ADV7180BCPZ | ADV7181DBCPZ |
|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Package | 40-lead LFCSP-VQ (6 mm × 6 mm) | 40-lead LFCSP-VQ (6 mm × 6 mm) | 40-lead LFCSP-VQ (6 mm × 6 mm) |
| Product Type | Integrated digital video encoder | Video encoder | Video encoder |
| Output Resolution | 10-bit | 10-bit family rating | 10-bit family rating |
主な差別化要因
- Defined NTSC and PAL encoder function with three 10-bit DAC outputs （vs ADV7181DBCPZ)
- Established 40-lead 6 mm × 6 mm package platform （vs ADV7180BCPZ)
- Two-wire serial control with two slave addresses （vs ADV7180BCPZ)
- Clear legacy-maintenance positioning （vs ADV7390)
設計ノート
Route the CCIR-601 video input, clock, I2C-compatible serial data, and serial clock as controlled-length digital interfaces. Keep the three analog outputs away from switching nodes and place their associated resistors or termination components close to the relevant DAC pins. Use a continuous ground reference beneath the device and maintain the manufacturer’s exposed-pad connection so the 40-lead LFCSP-VQ package can dissipate heat through the multilayer board rather than an unreliable pad connection.
Design the 3 V to 3.6 V supply network to support the encoder’s DAC and digital switching activity without disturbing video output quality. Place local high-frequency bypass capacitance at the supply pins and isolate the encoder rail from noisy analog or switching loads where practical. Power-down and power-up sequencing should account for the I2C-compatible control bus so the host does not attempt to configure the device before its supply and clock conditions are valid.
Treat video-clock integrity as a first-order requirement because the encoder converts an 8-bit CCIR-601 4:2:2 stream into three 10-bit analog outputs. Avoid long stubs, unnecessary vias, and splits in clock or video routes, and use a quiet reference plane beneath the high-speed digital section. Validate the final output against the intended NTSC or PAL timing and check for ringing, sparkle, and color-dependent artifacts that could indicate clock, return-path, or DAC-output problems.
Do not assume that a 40-lead LFCSP-VQ footprint automatically makes a different encoder model interchangeable. The ADV7180BCPZ and ADV7181DBCPZ share the physical package format, but supported standards, serial registers, clock requirements, DAC behavior, and pin functions must be checked in the applicable manufacturer documentation. For a genuinely new product, evaluate the ADV7390 design path instead of extending the NRND ADV7179 architecture without a supply and lifecycle plan.
コンプライアンス情報
The manufacturer lifecycle guidance identifies ADV7179 as not recommended for new designs. Specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals declarations are not stated in the cited manufacturer product summary.
