TMC2081KBC - 24/16-Bit Digital Video Mixer | Fairchild
N.º de pieza: TMC2081KBC ✗ Fin de vida| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $59.592 | $59,59 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
TMC2081KBC Descripción general
A digital video mixer is an interface IC that combines or blends multiple digital pixel streams using programmable coefficients rather than analog signal mixing. In the signal hierarchy, the TMC2081 belongs to video interface and video processing within the broader interface IC and semiconductor categories. It is useful when a system must combine graphics, camera, overlay, or chroma-key data before passing the result to downstream video circuitry.
The TMC2081 supports proportional mixing through 7-bit coefficients A7-0. The supplied technical material also describes 8-bit color-index inputs, 255-step proportional mixing, 256-step mixing with the A8-0 coefficient path for a value of 100h unity gain, and an 8-bit look-up table on the chroma channel. These features allow designers to adjust source contributions and apply channel-specific processing rather than relying on a fixed video combiner.
Operation is digital, which avoids the noise, gain drift, and channel-matching problems commonly associated with analog video mixers. The implementation supports color spaces with 444 and 422 chroma formats and a 24/16-bit output, making the device relevant to professional video, broadcast, monitoring, graphics, and industrial imaging systems that require deterministic pixel-level blending.
The main design consideration is digital interface timing and format compatibility. All sources must be mapped to supported resolutions, color spaces, and coefficient formats before the mixer is enabled. Because the available verified data does not state supply voltage, clock frequency, operating temperature, or the full pin map, those values must be confirmed in the manufacturer datasheet and current production documentation before schematic capture.
This page combines the verified distributor and manufacturer-datasheet references with application guidance and sourcing context. It also highlights where pin-level, timing, and lifecycle information still requires confirmation, helping engineers distinguish documented capabilities from assumptions.
Alternativas directas para TMC2081KBC — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
No hay alternativas directas disponibles para este producto.
Solicitar alternativasTMC2081KBC Especificaciones
| Device Type | Monolithic digital video mixer |
| Función | Proportional digital video mixing |
| Supported Input Color Formats | GBR, YCBCR444, and YCBCR422 |
| Supported Output Color Formats | GBR, YCBCR444, and YCBCR422 |
| Input Word Width | 24/16 bit for GBR and YCBCR; 8 bit for color index |
| Output Word Width | 24/16 bit |
| Proportional Mixing Coefficient Width | 8 bit A7-0 |
| Extended Coefficient Path | 9 bit A8-0 |
| Proportional Mixing Steps | 255-step proportional mixing |
| Extended Mixing Steps | 256-step mixing with A8-0 |
| Unity Gain Coefficient | 100h on the extended A8-0 path |
| Look-Up Table | 256 x 8-bit look-up table on chroma channel |
| Package Type | 160-pin PQFP |
| Tipo de montaje | Surface Mount |
Guía de configuración de pines de TMC2081KBC 160-pin pqfp
Configuración de pines para TMC2081KBC (encapsulado 160-pin pqfp). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para TMC2081KBC.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
TMC2081KBC es adecuado para 6 aplicacións: Professional Video Monitoring, Broadcast Graphics and Video Effects, Camera and Sensor Imaging Fusion, Industrial Machine Vision, Digital Video Test and Measurement, Presentation and Digital Signage.
Professional Video Monitoring
The TMC2081KBC fits professional monitoring systems that must combine compatible GBR, YCBCR444, or YCBCR422 video paths before display processing. Its documented 24/16-bit operation, 7-bit proportional coefficients, and chroma look-up table allow a system to blend sources without the noise and gain drift associated with analog mixing. The implementation should convert every source to compatible resolution, pixel clock, and color organization before the mixer. Designers must also validate clock phase, source enable timing, and coefficient updates from the manufacturer timing diagrams. The advantage is deterministic pixel-level control, while the trade-off is a more demanding digital interface than an analog combiner.
Recomendado
Broadcast Graphics and Video Effects
The TMC2081KBC is appropriate for broadcast graphics, overlays, and video-effects equipment that must blend multiple supported digital video formats. Programmable A7-0 mixing coefficients provide 255-step proportional control, while the extended A8-0 path supports 256-step operation and unity gain at 100h. This allows foreground and background contributions to be adjusted digitally with repeatable results. In practice, source timing and data alignment must be checked carefully because coefficient changes can cause visible artifacts if they are not synchronized to the intended video region. The device offers stronger channel control than an analog matrix but requires a structured digital design.
Recomendado
Camera and Sensor Imaging Fusion
The TMC2081KBC can support imaging fusion in systems that combine compatible digital camera or sensor-derived video with graphics or overlay data. Its support for GBR, YCBCR444, YCBCR422, and an 8-bit color-index path makes it relevant where sources use different chroma organizations before normalization. The 256 x 8-bit chroma look-up table provides a way to alter the chroma contribution of the mixed signal. Engineers must establish whether each source requires conversion before mixing and confirm all timing against the device documentation. The result is flexible digital compositing, though source-format conversion remains a significant system-level task.
Recomendado
Industrial Machine Vision
The TMC2081KBC is suitable for industrial machine-vision systems that overlay live camera imagery with graphical annotations, masks, or indexed color data. The 24/16-bit GBR path supports higher-quality compositing, while 8-bit color-index inputs can represent overlays with a limited color palette. The proportional mixing controls allow an engineer to tune live-video and overlay visibility without analog gain adjustments. A practical implementation still needs pixel-clock generation, frame-boundary alignment, and verified power and signal specifications. Compared with a software-composited pipeline, dedicated hardware mixing can reduce processing burden, but it must be integrated with sufficient timing margin.
Recomendado
Digital Video Test and Measurement
The TMC2081KBC can be used in digital video test equipment to construct known mixtures of compatible test signals and evaluate downstream decoding or display behavior. Because the mixer works with GBR, YCBCR444, YCBCR422, and color-index inputs, a bench system can inject controlled proportional combinations into a device under test. The 255-step and 256-step coefficient paths allow repeatable source-weight changes for visual and measurement comparisons. Test-system designers still need to validate all timing, logic, and supply details from the manufacturer datasheet because the supplied excerpts do not specify them. This use is particularly valuable where analog mixing would introduce unwanted noise or gain variability.
Recomendado
Presentation and Digital Signage
The TMC2081KBC can combine live digital video and indexed graphics in presentation systems or digital-signage controllers that retain a fixed output format. The separate 8-bit color-index path is useful for graphics overlays, while the 24/16-bit video path carries the primary GBR or YCBCR image. Proportional mixing allows the system to crossfade or scale source contributions digitally, with coefficients programmed through the documented A7-0 or A8-0 paths. To use it reliably, the designer must ensure all sources share a supported timing relationship and that overlay boundaries are represented consistently. The benefit is controlled blending without analog mixer drift, while the cost is additional digital interface design.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para TMC2081KBC — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Notas de diseño
Treat every video source as a synchronous digital interface rather than an analog signal path. Confirm source and output clock relationships, data timing, and supported pixel organization in the Fairchild Semiconductor datasheet before layout. The verified excerpts identify GBR, YCBCR444, YCBCR422, and color-index modes but do not provide edge requirements, so engineers should not infer suitable trace lengths or impedance targets without the missing timing data.
Use a controlled-impedance layout for the 24/16-bit video buses and maintain continuous reference planes where the device package and board stack-up permit. Place decoupling and clock-routing structures according to the manufacturer layout guidance once supply-voltage and pin details are confirmed. Because the TMC2081KBC uses a 160-pin PQFP, via escape routing and thermal-via strategy should be reviewed before release; fanout, current requirements, and exposed thermal requirements remain data-needs.
Do not treat an advertised digital-video function as proof of drop-in compatibility. A replacement must reproduce the 160-pin PQFP pinout, electrical limits, clocking, supported color formats, coefficient programming, and video timing. The supplied cross-reference results did not identify a verified compatible MPN, so using an unverified substitute could introduce timing failures, coefficient incompatibilities, or subtle pixel-format errors that are difficult to diagnose.
Información de cumplimiento
The supplied web data contains no explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration. The product is an industrial video IC, so AEC-Q100 status requires specific automotive qualification evidence rather than assumption.
