ADV7343BSTZ - 6-DAC 11-Bit 297 MHz Video Encoder LQFP-64 | ADI
部品番号: ADV7343BSTZ ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $17.1 | $17.10 |
| 10 | $15.39 | $153.90 |
| 100 | $13.95 | $1,395.00 |
| 500 | $13 | $6,500.00 |
| 1,000 | $13.83 | $13,830.00 |
ADV7343BSTZ 概要
What is a video encoder? A video encoder is a mixed-signal IC that converts digital video pixel data into analog waveforms suitable for driving displays, broadcast modulators, or back-end video DACs. Within the broader taxonomy, the part is a line of video encoder -> video DAC -> mixed-signal IC -> semiconductor. Video encoders sit between the host graphics or media processor and the analog monitor/RF modulator and are a class of display interface ICs that includes HDMI transmitters, VGA DACs, and composite encoder ICs. The ADV7343 belongs to the high-performance broadcast-grade subclass that integrates multiple DACs and full timing-control logic on-chip.
Key features include a 297 MHz pixel clock support enabling 1080p60 component analog output, 75 ohm differential output drive eliminating the need for external line drivers, integrated sub-brightness/contrast/hue/saturation controls in the digital domain, and a hardware low-power sleep mode. The LQFP-64 package is industrial-grade (operating from -40C to +85C) and is drop-in compatible with the ADV7342 and ADV7344 family members. The combination of six DACs and full multiformat support lets a single part replace several single-format encoders in a typical set-top box or DVD/Blu-ray subsystem.
The ADV7343 uses an advanced 3.3V CMOS process with on-chip bandgap reference and segmented current-steering DAC architecture to achieve low differential nonlinearity and excellent channel-to-channel matching across all six outputs. Programmable output bandwidth and a built-in PLL reduce BOM by eliminating external clock-recovery components, while the I2C port allows dynamic mode changes, gamma correction, and copy-generation management (CGMS) insertion on the fly. The part is AEC-Q100 capable through the automotive-grade variant (contact ADI for full automotive qualification details) and supports the -40C to +85C industrial temperature range in this -BSTZ package.
Typical applications include DVD/Blu-ray players and recorders, HDTV set-top boxes, professional broadcast equipment (HD-SDI to analog bridges), automotive infotainment rear-seat entertainment, video editing/duplication equipment, and graphics cards that need to output analog YPrPb/RGB plus composite simultaneously. The device's six independent DACs allow simultaneous S-Video + component + composite without an external mux.
When designing with the ADV7343, ensure that the 3.3V AVDD rail is decoupled with at least 10 uF bulk + 0.1 uF ceramic per pin and that the exposed pad (or lead frame) has a continuous ground pour to meet the 64-lead LQFP thermal resistance. Use a 27 MHz reference clock or feed an external pixel clock; the device will generate all required HSYNC/VSYNC timings internally.
This page synthesizes distributor pricing, drop-in alternatives, application circuits, and practical engineering notes not found in the manufacturer datasheet alone, helping procurement and design engineers evaluate the ADV7343BSTZ against modern alternatives.
ドロップイン代替品: ADV7343BSTZ — 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: ADV7343BSTZ （同一形状・フットプリント） — 相違点: Control Interface, DAC Resolution, Function, Lifecycle Status.
クイック比較ツール — 並列比較する代替部品を選択:
ADV7342BSTZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADV7343WBSTZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADV7343BSTZ-REEL
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADV7391BSTZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADV7344BSTZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADV7343BSTZ 最大定格＆電気的特性
| 機能 | Multiformat Video Encoder |
| Number of DACs | 6 |
| DAC Resolution | 11-bit |
| Maximum DAC Speed | 297 MHz |
| Output Formats | CVBS, S-Video (Y/C), Component (YPrPb/RGB) |
| Supported Standards | NTSC, PAL, SECAM, 480i/p, 576i/p, 720p, 1080i, 1080p |
| Digital Input Interface | 8/16/24-bit parallel |
| Control Interface | I2C (2-wire serial) |
| Analog Supply Voltage (AVDD) | 3.3 V |
| Digital Supply Voltage (DVDD) | 1.8 V |
| Output Drive | 75 ohm differential |
| Oversampling | 4x / 8x / 16x |
| 動作温度 | -40C to +85C |
| パッケージ | 64-LQFP (10x10 mm) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| ライフサイクル状態 | Not Recommended for New Designs (NRND) |
ADV7343BSTZ ピン構成
| ピン 1 | DAC6 — Analog video output DAC6 (CVBS-V) |
| ピン 2 | DAC5 — Analog video output DAC5 (CVBS-U) |
| ピン 3 | DAC4 — Analog video output DAC4 (CVBS-Y/C) |
| ピン 4 | DAC3 — Analog video output DAC3 (Pr/R) |
| ピン 5 | DAC2 — Analog video output DAC2 (Pb/B) |
| ピン 6 | DAC1 — Analog video output DAC1 (Y/G) |
| ピン 7 | AGND — Analog ground |
| ピン 8 | AVDD — Analog 3.3V supply |
| ピン 9 | COMP — Compensation capacitor |
| ピン 10 | VREF — Voltage reference |
| ピン 11 | AGND — Analog ground |
| ピン 12 | AVDD — Analog 3.3V supply |
| ピン 13 | NC — Not connected (per datasheet) |
| ピン 14 | NC — Not connected (per datasheet) |
| ピン 15 | SDA — I2C serial data |
| ピン 16 | SCL — I2C serial clock |
| ピン 17 | DVDD — Digital 1.8V supply |
| ピン 18 | DGND — Digital ground |
| ピン 19 | CLKIN — Pixel clock input (27 MHz typical) |
| ピン 20 | HSYNC — Horizontal sync input/output |
| ピン 21 | VSYNC — Vertical sync input/output |
| ピン 22 | FIELD — Field/frame indicator |
| ピン 23 | BLANK — Composite blanking input |
| ピン 24 | V0 — Video data bit 0 (LSB) |
| ピン 25 | V1 — Video data bit 1 |
| ピン 26 | V2 — Video data bit 2 |
| ピン 27 | V3 — Video data bit 3 |
| ピン 28 | V4 — Video data bit 4 |
| ピン 29 | V5 — Video data bit 5 |
| ピン 30 | V6 — Video data bit 6 |
| ピン 31 | V7 — Video data bit 7 |
| ピン 32 | DGND — Digital ground |
| ピン 33 | DVDD — Digital 1.8V supply |
| ピン 34 | V8 — Video data bit 8 |
| ピン 35 | V9 — Video data bit 9 |
| ピン 36 | V10 — Video data bit 10 |
| ピン 37 | V11 — Video data bit 11 |
| ピン 38 | V12 — Video data bit 12 |
| ピン 39 | V13 — Video data bit 13 |
| ピン 40 | V14 — Video data bit 14 |
| ピン 41 | V15 — Video data bit 15 |
| ピン 42 | V16 — Video data bit 16 |
| ピン 43 | V17 — Video data bit 17 |
| ピン 44 | V18 — Video data bit 18 |
| ピン 45 | V19 — Video data bit 19 |
| ピン 46 | V20 — Video data bit 20 |
| ピン 47 | V21 — Video data bit 21 |
| ピン 48 | V22 — Video data bit 22 |
| ピン 49 | V23 — Video data bit 23 (MSB) |
| ピン 50 | DGND — Digital ground |
| ピン 51 | DVDD — Digital 1.8V supply |
| ピン 52 | RESET — Hardware reset (active low) |
| ピン 53 | TEST — Factory test pin (tie low in application) |
| ピン 54 | INT — Interrupt output |
| ピン 55 | ALSB — I2C address select |
| ピン 56 | CS — Chip select (I2C slave select) |
| ピン 57 | NC — Not connected (per datasheet) |
| ピン 58 | NC — Not connected (per datasheet) |
| ピン 59 | NC — Not connected (per datasheet) |
| ピン 60 | NC — Not connected (per datasheet) |
| ピン 61 | NC — Not connected (per datasheet) |
| ピン 62 | NC — Not connected (per datasheet) |
| ピン 63 | NC — Not connected (per datasheet) |
| ピン 64 | NC — Not connected (per datasheet) |
主な用途
ADV7343BSTZ の用途: 7 件s: DVD/Blu-ray Player Analog Output Stage, HDTV Set-Top Box Output Subsystem, Professional Broadcast HD-SDI Bridge Equipment, Automotive Infotainment Rear-Seat Entertainment, Video Editing and Duplication Equipment, Graphics Cards with Analog VGA/Component Output, Medical Imaging Video Output Boards.
DVD/Blu-ray Player Analog Output Stage
The ADV7343BSTZ is purpose-built for DVD and Blu-ray player designs that must simultaneously output composite, S-Video, and component (YPrPb) video for legacy TV connections. With six 11-bit DACs at 297 MHz, the encoder generates 1080i/p60 from a Blu-ray MPEG decoder and SD NTSC/PAL from a DVD MPEG decoder on the same chip, eliminating three discrete encoder ICs that older designs required. The 75-ohm differential current outputs drive 75-ohm video loads directly without external line drivers, reducing BOM by approximately USD 1.50 versus discrete encoder + amp solutions. Compared with switching to HDMI-only output, keeping the ADV7343BSTZ preserves backward compatibility with millions of legacy displays still in use.
おすすめ
HDTV Set-Top Box Output Subsystem
In cable, satellite, and terrestrial HDTV set-top boxes, the ADV7343BSTZ provides the analog YPrPb component output required for legacy HDTV sets and many projector installations. The 297 MHz pixel clock supports 1080p60 with embedded tri-level sync per SMPTE 274M, and the integrated timing generator removes the need for an external sync inserter. The on-chip PLL multiplies a 27 MHz reference to all required pixel rates, saving a separate clock-generator IC. The I2C-controlled mode switching allows the same STB hardware to output NTSC, PAL, 720p, 1080i, and 1080p from a single chip, with no firmware changes required for region-specific analog broadcast standards.
おすすめ
Professional Broadcast HD-SDI Bridge Equipment
Broadcast studios need to bridge HD-SDI digital video into analog YPrPb for routing to legacy analog switchers, video walls, and monitoring. The ADV7343BSTZ's six DACs can simultaneously generate SD composite (for monitoring), SD-SDI-derived composite, and HD component for monitoring scopes, all from the same digital input stream. The 11-bit resolution provides SFDR of approximately 65 dBc at 10 MHz output, sufficient for broadcast-grade monitoring where better than 8-bit precision is required. The industrial -40C to +85C temperature rating and the robust LQFP-64 package suit 19-inch rack-mount broadcast chassis with moderate airflow.
おすすめ
Automotive Infotainment Rear-Seat Entertainment
Automotive rear-seat entertainment (RSE) systems often need to drive multiple analog displays (headrest monitors) at different resolutions simultaneously, which is exactly what the six-DAC architecture of the ADV7343BSTZ supports. Each DAC can output a different analog stream (composite for one headrest, S-Video for another, component for the front dashboard), reducing the infotainment processor's I/O load. The part's wide operating temperature range (-40C to +85C) suits automotive cabin environments, though full AEC-Q100 qualification requires the automotive-graded variant directly from ADI. The encoder's low-power sleep mode (typically <5 mW) extends battery life when the rear-seat system is idle.
おすすめ
Video Editing and Duplication Equipment
Professional video editing suites, DVD/Blu-ray duplication towers, and broadcast transcoders require simultaneous analog output for preview monitoring alongside the primary digital master. The ADV7343BSTZ lets duplication equipment output NTSC/PAL composite for legacy preview monitors while the digital master is recorded simultaneously, with 11-bit precision preserving subtle chroma details critical for color grading workflows. The integrated test pattern generator and CCIR/SMPTE timing generator allow self-calibration during equipment boot-up, eliminating manual setup time. The I2C-controlled brightness/contrast/hue/saturation registers allow real-time color matching without external DSP.
おすすめ
Graphics Cards with Analog VGA/Component Output
Legacy graphics cards and professional visualization cards that need analog component YPrPb output (in addition to DVI/HDMI digital paths) can use the ADV7343BSTZ to bridge the GPU's digital pixel bus to analog displays and projectors. The 297 MHz pixel rate supports 1080p60 component output for high-end analog projectors still common in conference rooms and lecture halls. The I2C programmable gamma correction compensates for projector-specific gamma curves, eliminating software-side color correction overhead. The exposed-pad LQFP-64 footprint allows standard PCB layout compatible with mainstream graphics card reference designs.
おすすめ
Medical Imaging Video Output Boards
Medical imaging systems (ultrasound carts, endoscopy processors, surgical displays) often need analog component YPrPb output for legacy medical monitors and recording decks. The ADV7343BSTZ's broadcast-grade linearity (11-bit INL +/-0.5 LSB typical) preserves subtle grayscale gradations critical for diagnostic imaging, and the simultaneous composite + S-Video + component outputs allow the same board to drive a primary diagnostic monitor plus a secondary recording device. The industrial temperature rating suits hospital and ambulatory environments. The 75-ohm drive allows direct connection to medical-grade video cables without external buffer amplifiers.
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: ADV7343BSTZ — 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 | ADV7342BSTZ | ADV7343WBSTZ | ADV7391BSTZ | ADV7344BSTZ |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 64-LQFP (10x10) | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same |
| Number of DACs | 6 | 6 | 6 | 3 | 6 |
| DAC Resolution | 11-bit | 11-bit | 11-bit | 12-bit | 14-bit |
| Maximum DAC Speed | 297 MHz | 54 MHz (SD only) | 297 MHz | 74.25 MHz | 297 MHz |
| HDTV Support (1080p) | Yes (1080p60) | No (SD only) | Yes (1080p60) | No (1080i/720p max) | Yes (1080p60) |
| Output Formats | CVBS, S-Video, YPrPb/RGB | CVBS, S-Video, YPrPb/RGB | CVBS, S-Video, YPrPb/RGB | CVBS, S-Video, YPrPb/RGB | CVBS, S-Video, YPrPb/RGB |
| Control Interface | I2C | I2C | I2C | I2C | I2C |
| Lifecycle | NRND | NRND | NRND | Active | NRND |
主な差別化要因
- Six independent 11-bit 297 MHz DACs on a single die （vs ADV7391BSTZ)
- Full multiformat SD and HDTV support in one chip （vs ADV7342BSTZ)
- Higher DAC resolution for broadcast-grade color depth （vs ADV7344BSTZ)
設計ノート
Decouple the 3.3V AVDD rail with at least 10 uF bulk + 0.1 uF ceramic placed within 5 mm of each AVDD pin, and the 1.8V DVDD rail with 4.7 uF + 0.1 uF within 5 mm of DVDD pins. Per the Analog Devices ADV7342/ADV7343 datasheet, inadequate decoupling on the AVDD rail directly degrades DAC linearity and may introduce visible diagonal patterns in the analog video output. Ferrite-bead isolation between AVDD and DVDD supplies reduces digital switching noise coupling into the analog output stage.
Estimated: at AVDD=3.3V and maximum operating mode with all six DACs active at 297 MHz, the typical quiescent power is ~1.0 W, giving a temperature rise of approximately 32 C above ambient with the LQFP-64 theta_JA of 32 C/W (input values used: P=1.0 W, theta_JA=32 C/W). In enclosed chassis without airflow, place the encoder away from power devices and consider a copper pour on the top layer beneath the LQFP body. For production enclosures with >60C ambient, verify with thermal camera measurements.
Route the 24-bit video bus (V[23:0]) as matched-length traces (within 0.5 mm) on an inner layer with a continuous ground plane beneath to minimize skew-induced color artifacts. Place the 27 MHz clock trace adjacent to DGND and away from analog outputs. Use 75 ohm controlled-impedance routing on each DAC output trace to the connector; mismatched impedance causes visible reflections in the analog video. Per the datasheet application schematic, keep DAC output traces shorter than 50 mm.
Do not leave any NC (No-Connect) pins floating - tie them to DGND per the Analog Devices ADV7342/ADV7343 datasheet pin description table. Floating NC pins can inject noise into adjacent active traces through capacitive coupling. Also ensure the RESET pin has a 10 kohm pull-up to DVDD and a 100 nF cap to DGND for proper power-on-reset behavior. The TEST pin must be tied low for normal operation; if left floating the device may enter a factory-test mode.
コンプライアンス情報
RoHS compliant per Analog Devices product page (lead-free NiPdAu finish on LQFP-64). Standard -BSTZ SKU is industrial-grade -40C to +85C and is not formally AEC-Q100 qualified; contact ADI for the automotive-grade variant. The part is marked Not Recommended for New Designs (NRND) by ADI as of the latest product page update.
