ADV7391BCPZ - 10-Bit SD/HD Video Encoder | Analog Devices
N.º de pieza: ADV7391BCPZ ✗ Fin de vida| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $8.5 | $8,50 |
| 10 | $7.8 | $78,00 |
| 100 | $7.1 | $710,00 |
| 500 | $6.5 | $3.250,00 |
| 1.000 | $6.77 | $6.770,00 |
ADV7391BCPZ Descripción general
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.
Alternativas directas para ADV7391BCPZ — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ADV7391BCPZ (mismo factor de forma y huella) — difiere en Package, Number of DACs, Operating Temperature Range, Lifecycle Status, Output Formats.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ADV7393BCPZ
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ADV7390BCPZ
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ADV7392BCPZ
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ADV7391BCPZ-RL
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ADV7391BCPZ Especificaciones
| Función | Video Encoder |
| Number of DACs | 3 |
| Resolución | 10-bit |
| Frecuencia de muestreo | 297 Msps |
| Tensión de alimentación | 1.71 V to 3.63 V |
| Corriente de alimentación | 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 |
| Rango de temperatura de funcionamiento | -40°C to +85°C |
| Encapsulado | 32-Lead LFCSP-VQ (5x5 mm) |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
| Estado del ciclo de vida | Not Recommended for New Designs (NRND) |
Configuración de pines de ADV7391BCPZ
| Pin 1 | DVDD — Digital power supply |
| Pin 2 | DGND — Digital ground |
| Pin 3 | PCLK — Pixel clock input |
| Pin 4 | HSYNC — Horizontal sync input |
| Pin 5 | VSYNC — Vertical sync input |
| Pin 6 | D0 — Data input bit 0 |
| Pin 7 | D1 — Data input bit 1 |
| Pin 8 | D2 — Data input bit 2 |
| Pin 9 | D3 — Data input bit 3 |
| Pin 10 | D4 — Data input bit 4 |
| Pin 11 | D5 — Data input bit 5 |
| Pin 12 | D6 — Data input bit 6 |
| Pin 13 | D7 — Data input bit 7 |
| Pin 14 | AVDD — Analog power supply |
| Pin 15 | AGND — Analog ground |
| Pin 16 | DAC_A — DAC A output (CVBS or Y) |
| Pin 17 | DAC_B — DAC B output (S-Video C or Pr) |
| Pin 18 | DAC_C — DAC C output (Pb) |
| Pin 19 | COMP — Compensation pin |
| Pin 20 | I2C_SDA — I2C data |
| Pin 21 | I2C_SCL — I2C clock |
| Pin 22 | RESET — Reset input |
| Pin 23 | PWRDWN — Power down input |
| Pin 24 | XTAL_IN — Crystal oscillator input |
| Pin 25 | XTAL_OUT — Crystal oscillator output |
| Pin 26 | CLKIN — Clock input |
| Pin 27 | NC — No connect |
| Pin 28 | NC — No connect |
| Pin 29 | NC — No connect |
| Pin 30 | NC — No connect |
| Pin 31 | NC — No connect |
| Pin 32 | EP — Exposed pad (thermal and ground) |
Aplicaciones típicas
ADV7391BCPZ es adecuado para 6 aplicacións: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ADV7391BCPZ — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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 |
Diferenciadores clave
- Supports both SD and HD formats (frente a ADV7390BCPZ)
- Lower power consumption (frente a ADV7393BCPZ)
- Cost-effective (frente a ADV7393BCPZ)
Notas de diseño
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.
Información de cumplimiento
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. Other compliance data not specified in provided data.
