ADV7391BCPZ - 10-Bit SD/HD Video Encoder | Analog Devices
MPN: ADV7391BCPZ ✗ Cuối đờiADV7391BCPZ Tóm tắt
A video encoder is an integrated circuit that converts digital video data into analog video signals for display or transmission. It sits between a digital video source (such as a processor, FPGA, or camera) and an analog display or recording device. The ADV7391 belongs to the video encoder family, which is a subset of interface ICs, and ultimately falls under the broader category of mixed-signal semiconductors. Understanding this hierarchy helps engineers place the component within a system's signal chain.
Key features of the ADV7391BCPZ include three 10-bit DACs with a sampling rate of 297 Msps, enabling high-definition video output. It supports both SD and HD formats, with automatic detection of input video standards. The device also includes a programmable filter for image enhancement, and a flexible digital input interface that accepts 8-bit or 16-bit data with separate HSYNC and VSYNC signals. Its low power consumption of 81 mA makes it suitable for battery-powered or thermally constrained designs.
Technically, the ADV7391 uses a high-speed digital-to-analog conversion architecture with on-chip interpolation filters to reduce image artifacts. The three DACs can be configured independently, allowing simultaneous CVBS and S-Video outputs, or component YPrPb output. The device operates over the industrial temperature range of -40°C to +85°C, ensuring reliability in harsh environments. The LFCSP package provides excellent thermal performance and a small footprint, with an exposed pad for enhanced heat dissipation.
Typical applications include set-top boxes, video players, displays, surveillance systems, and video conferencing equipment. The ADV7391 is particularly well-suited for designs that require both SD and HD analog output from a single chip, such as multi-standard video converters. Its low power and small size also make it attractive for portable video devices.
When designing with the ADV7391, ensure proper decoupling of the power supply pins with 0.1 uF capacitors placed close to the device. The digital input timing must match the device's requirements for PCLK, HSYNC, and VSYNC to avoid glitches. Also, note that the ADV7391 is not recommended for new designs (NRND), so consider alternative parts for new projects.
Bộ thay thế dễ dàng lắp đặt cho ADV7391BCPZ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADV7391BCPZ (cùng hình factor và footprint) — khác nhau ở Package, Number of DACs, Operating Temperature Range, Lifecycle Status, Output Formats.
ADV7393BCPZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADV7390BCPZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADV7392BCPZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADV7391BCPZ-RL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADV7393BCPZ-RL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADV7391BCPZ Thông số kỹ thuật
| Chức năng | Video Encoder |
| Number of DACs | 3 |
| Độ phân giải | 10-bit |
| Tỷ lệ lấy mẫu | 297 Msps |
| Điện áp cung cấp | 1.71 V to 3.63 V |
| Điện áp cung cấp | 81 mA typical |
| Output Formats | CVBS, S-Video (Y-C), Component (YPrPb) |
| Video Standards | NTSC, PAL, 720p, 1080i |
| Digital Input Interface | 8-bit or 16-bit with HSYNC/VSYNC |
| Khoảng nhiệt độ hoạt động | -40°C to +85°C |
| Hộp | 32-Lead LFCSP-VQ (5x5 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Trạng thái vòng đời | Not Recommended for New Designs (NRND) |
Cấu hình chân ADV7391BCPZ
| Chân 1 | DVDD — Digital power supply |
| Chân 2 | DGND — Digital ground |
| Chân 3 | PCLK — Pixel clock input |
| Chân 4 | HSYNC — Horizontal sync input |
| Chân 5 | VSYNC — Vertical sync input |
| Chân 6 | D0 — Data input bit 0 |
| Chân 7 | D1 — Data input bit 1 |
| Chân 8 | D2 — Data input bit 2 |
| Chân 9 | D3 — Data input bit 3 |
| Chân 10 | D4 — Data input bit 4 |
| Chân 11 | D5 — Data input bit 5 |
| Chân 12 | D6 — Data input bit 6 |
| Chân 13 | D7 — Data input bit 7 |
| Chân 14 | AVDD — Analog power supply |
| Chân 15 | AGND — Analog ground |
| Chân 16 | DAC_A — DAC A output (CVBS or Y) |
| Chân 17 | DAC_B — DAC B output (S-Video C or Pr) |
| Chân 18 | DAC_C — DAC C output (Pb) |
| Chân 19 | COMP — Compensation pin |
| Chân 20 | I2C_SDA — I2C data |
| Chân 21 | I2C_SCL — I2C clock |
| Chân 22 | RESET — Reset input |
| Chân 23 | PWRDWN — Power down input |
| Chân 24 | XTAL_IN — Crystal oscillator input |
| Chân 25 | XTAL_OUT — Crystal oscillator output |
| Chân 26 | CLKIN — Clock input |
| Chân 27 | NC — No connect |
| Chân 28 | NC — No connect |
| Chân 29 | NC — No connect |
| Chân 30 | NC — No connect |
| Chân 31 | NC — No connect |
| Chân 32 | EP — Exposed pad (thermal and ground) |
Ứng dụng tiêu biểu
ADV7391BCPZ phù hợp cho 6 Áp dụngs: Set-Top Boxes, Video Players, Displays, Surveillance Systems, Video Conferencing, Portable Video Devices.
Set-Top Boxes
The ADV7391BCPZ is ideal for set-top boxes that require analog video output for legacy TVs. Its support for both SD and HD formats ensures compatibility with a wide range of displays. The low power consumption of 81 mA is beneficial for always-on devices, and the compact LFCSP package saves board space. The three DACs can drive CVBS and S-Video simultaneously, enabling dual outputs for multi-room viewing.
Được đề xuất
Video Players
In video players, the ADV7391BCPZ converts digital video from a disc or streaming source into analog signals for display. Its 10-bit DACs provide high-quality color reproduction, and the 297 Msps sampling rate supports smooth HD playback. The device's low power consumption extends battery life in portable players, while the small package allows for slim designs. The programmable filter helps reduce artifacts, ensuring crisp images.
Được đề xuất
Displays
The ADV7391BCPZ is used in displays to convert digital video signals from processors or graphics controllers into analog formats for VGA or component inputs. Its support for 720p and 1080i HD formats makes it suitable for high-resolution monitors and TVs. The three DACs can be configured for YPrPb component output, providing superior image quality. The device's industrial temperature range ensures reliable operation in various environments.
Được đề xuất
Surveillance Systems
In surveillance systems, the ADV7391BCPZ converts digital video from cameras or DVRs into analog signals for monitoring on CRT or analog LCD screens. Its low power consumption is ideal for continuously operating security equipment, and the compact package fits into space-constrained DVR designs. The device supports both SD and HD formats, allowing flexibility in camera resolutions. The programmable filter enhances image clarity, which is critical for identifying details.
Được đề xuất
Video Conferencing
The ADV7391BCPZ is used in video conferencing systems to output analog video to displays or projectors. Its support for multiple video standards ensures compatibility with various equipment. The low power consumption is beneficial for desktop units, and the small package allows for compact designs. The three DACs can drive component output for high-quality images, while the programmable filter reduces noise for clearer video.
Được đề xuất
Portable Video Devices
The ADV7391BCPZ is suitable for portable video devices such as handheld TVs and portable DVD players. Its low power consumption of 81 mA extends battery life, and the compact LFCSP package enables slim designs. The device supports both SD and HD formats, allowing playback of various content. The three DACs can output CVBS for composite connections, making it easy to connect to TVs or monitors.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADV7391BCPZ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ADV7393BCPZ | ADV7390BCPZ | ADV7392BCPZ |
|---|---|---|---|---|
| Package | 32-Lead LFCSP-VQ (5x5 mm) | 32-Lead LFCSP-VQ (5x5 mm) | 32-Lead LFCSP-VQ (5x5 mm) | 32-Lead LFCSP-VQ (5x5 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Number of DACs | 3 | 3 | 3 | 3 |
| Resolution | 10-bit | 10-bit | 10-bit | 10-bit |
| Sampling Rate | 297 Msps | 297 Msps | 297 Msps | 297 Msps |
| HD Support | Yes (720p/1080i) | Yes (720p/1080i) | No (SD only) | Yes (720p/1080i) |
| Dual Input Ports | No | Yes | No | No |
| Supply Voltage | 1.71 V to 3.63 V | 1.71 V to 3.63 V | 1.71 V to 3.63 V | 1.71 V to 3.63 V |
Bảo phân biệt quan trọng
- Supports both SD and HD formats (vsADV7390BCPZ)
- Lower power consumption (vsADV7393BCPZ)
- Cost-effective (vsADV7393BCPZ)
Ghi chú thiết kế
Ensure proper decoupling of the power supply pins with 0.1 uF capacitors placed close to the device. Use separate analog and digital supply pins (AVDD and DVDD) with individual decoupling to minimize noise coupling. A 10 uF bulk capacitor on the main supply is recommended for stable operation.
The exposed pad (EP) on the LFCSP package must be soldered to the PCB ground plane for thermal and electrical performance. Use multiple vias under the pad to enhance heat dissipation. Keep analog and digital ground planes separate and connect them at a single point near the device.
The ADV7391 is NRND (Not Recommended for New Designs). For new projects, consider using the ADV7393BCPZ or other alternatives. Also, ensure the digital input timing (PCLK, HSYNC, VSYNC) matches the datasheet requirements to avoid glitches. Incorrect timing can cause image artifacts.
Thông tin tuân thủ
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. Other compliance data not specified in provided data.
