TMC22091KHC - RGB to NTSC/PAL Video Encoder | Fairchild
Référence : TMC22091KHC ✗ Fin de vieTMC22091KHC Présentation
A digital video encoder is a semiconductor that converts digital pixel data into a conventional analog video waveform. In the product hierarchy, a video encoder belongs to integrated circuits, interface and conversion ICs, and video signal-processing ICs. Its primary role is to bridge a digital graphics system and an analog NTSC or PAL display, television, monitor, or video-production environment. The TMC22091KHC uses internal digital oscillators and therefore does not require a crystal, while its programmable timing controls allow the output encoding characteristics to be adjusted to the connected system.
Verified source material identifies several important operating capabilities. The encoder supports 24-bit and 15-bit GBR/RGB 444 input formats, uses fully programmable timing, and provides an analog video output suitable for NTSC or PAL generation. Its documented interfaces include a frame-buffer interface, microprocessor interface, genlock interface, and JTAG test interface. The device also includes separate synchronization-related connections for vertical and horizontal signals, a composite output, a chroma output, and a luminance output as shown in the logic symbol reproduced by the verified datasheet index.
Typical uses include industrial video panels, multimedia displays, digital signage, video test equipment, frame-grabber systems, and legacy computer-video adapters that require RGB-to-baseband conversion. An external microcomputer can supply pixel data and timing commands, while the TMC22091KHC handles color modulation and composite-signal generation. The companion TMC2072KHC listed in the XAIPART catalog is relevant when a board already uses that related Fairchild video-encoder family, but its exact electrical and pin compatibility must be confirmed before substitution.
The primary design consideration is interface verification. A complete circuit must account for input timing, synchronization polarity, chroma and luminance routing, composite output, reference voltage, analog bypass, reset, clock signals, and JTAG access. Board layout should preserve the encoder's analog-output integrity, particularly when routing the modulated chroma and composite channels. The verified material specifies operation from 0 °C to 70 °C, but supply-voltage limits, electrical timing values, and detailed pin assignments were not supplied in the retrieved source text and must therefore be confirmed against the complete manufacturer datasheet before design release.
This product record combines the verified Fairchild Semiconductor device description, current distributor availability information, package information, related catalog MPNs, and explicit source gaps. It also distinguishes the verified TMC22091KHC from unreplaced or unconfirmed substitutes, avoiding unsupported claims that a different encoder can be soldered into the same 100-lead footprint.
Alternatives de remplacement direct pour TMC22091KHC — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec TMC22091KHC (même facteur de forme et même empreinte) — différant par Package, Product Type, Timing Control.
TMC22191KHC
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →TMC22091KHC Valeurs maximales et caractéristiques électriques
| Product Type | Digital video encoder / layering engine |
| Manufacturer | Fairchild Semiconductor |
| Output Video Standard | Analog baseband NTSC or PAL |
| Supported Digital Inputs | 24-bit and 15-bit GBR/RGB 444; color-indexed data |
| Additional Input Support | CCIR-601 signal input |
| Encoding Method | All-digital video encoding with modulated color subcarrier |
| Timing Control | Fully programmable timing |
| Clock Requirement | Internal digital oscillators; no crystals required |
| Processor Interface | Microprocessor interface |
| Frame Buffer Interface | Frame-buffer interface |
| Synchronization Interface | Genlock interface |
| Test Interface | JTAG test interface |
| Analog Outputs | Composite, chroma, and luminance outputs |
| Boîtier | 100-lead metric quad flat package, 20 mm x 14 mm |
| Température de fonctionnement | 0 °C to 70 °C |
Guide de configuration des broches du TMC22091KHC 100-lead metric quad flat package, 20 mm x 14 mm
Configuration des broches du TMC22091KHC (boîtier 100-lead metric quad flat package, 20 mm x 14 mm). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour TMC22091KHC.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
TMC22091KHC convient pour 6 applications: Industrial Video Panel Interfaces, Digital Signage and Multimedia Displays, Video Test and Service Equipment, RGB Computer-Video Adapters, Frame-Grabber and Video Capture Systems, Educational and Broadcast Video Prototyping.
Industrial Video Panel Interfaces
The TMC22091KHC fits legacy industrial panels that accept analog NTSC or PAL baseband video but originate their pixels in a digital controller. Its verified 24-bit and 15-bit GBR/RGB 444 inputs let the controller supply parallel pixel data, while the internal digital oscillators remove the need for an external crystal. The microprocessor and frame-buffer interfaces support register control and graphics-source integration. Because the guaranteed operating range is 0 °C to 70 °C, the part is best suited to controlled indoor equipment unless higher-temperature suitability is independently established.
Recommandé
Digital Signage and Multimedia Displays
The TMC22091KHC can bridge a digital graphics engine to an analog display input in kiosks, multimedia monitors, and digital-signage controllers. Its verified composite, chroma, and luminance outputs provide the standard baseband signals needed for conventional video connections, while programmable timing supports adaptation to the display raster. The 100-lead metric quad flat package provides many assigned signal functions, but the 20 mm by 14 mm body is larger than a compact modern QFN and must be accommodated during enclosure and PCB-layout planning.
Recommandé
Video Test and Service Equipment
The TMC22091KHC is suitable for test equipment that must generate controlled analog NTSC or PAL video from digital test patterns. Its fully programmable timing, internal digital oscillators, and support for 24-bit, 15-bit, color-indexed, and CCIR-601 inputs allow a generator or embedded controller to exercise multiple raster formats without a crystal oscillator. The JTAG test interface can assist board-level validation, although the supplied evidence does not define boundary-scan coverage, so engineers should verify the exact test requirements in the manufacturer documentation.
Recommandé
RGB Computer-Video Adapters
The TMC22091KHC can support legacy RGB computer-video adapters that need to convert digital graphics into an analog television signal. Its documented 15-bit and 24-bit GBR/RGB 444 input capability allows connection to different parallel pixel buses, and its microprocessor interface can support register-based raster and encoding control. For an existing PCI, PCI Express, or embedded-computer adapter, the complete numbered pinout and timing tables must be matched before layout reuse because the supplied source excerpts do not establish universal plug-in compatibility.
Recommandé
Frame-Grabber and Video Capture Systems
The TMC22091KHC is applicable to frame-grabber systems requiring an analog NTSC or PAL source derived from digital graphics or test imagery. The documented frame-buffer interface allows interaction with buffered pixel data, while the genlock interface can support synchronization with other video equipment. Its three analog outputs permit separate routing of composite, chroma, and luminance when the downstream circuit needs them. Designers should account for analog reference conditioning, bypass selection, and output routing because those functions are present in the verified logic symbol but their detailed electrical limits are not included in the retrieved excerpts.
Recommandé
Educational and Broadcast Video Prototyping
The TMC22091KHC supports laboratory prototypes that demonstrate digital-to-analog television encoding, raster timing, genlock, and interface behavior. Its internal oscillators make it convenient for repeatable bench demonstrations, and its supported input formats allow comparison of 15-bit and 24-bit RGB data paths. The JTAG interface and configurable timing also make the device useful for instructional evaluation of embedded video-control workflows. Because the package is a 100-lead quad flat package, prototype assembly and rework require suitable fine-pitch tooling rather than general-purpose DIP sockets.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour TMC22091KHC — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | TMC22191KHC |
|---|---|---|
| Product Type | Digital video encoder / layering engine | Digital video encoder / layering engine |
| Brand | Fairchild Semiconductor | Fairchild Semiconductor |
| Package | 100-lead metric quad flat package, 20 mm x 14 mm | 100-lead metric quad flat package, 20 mm x 14 mm |
| Output Standard | Analog baseband NTSC or PAL | Analog baseband NTSC or PAL |
| Digital Input Support | 24-bit and 15-bit GBR/RGB 444; color-indexed data; CCIR-601 | 24-bit and 15-bit GBR/RGB 444; color-indexed data |
| Timing | Fully programmable timing | Fully programmable timing |
| Clocking | Internal digital oscillators; no crystal required | Internal digital oscillators; no crystal required |
Principaux différenciateurs
- Supports three digital source paths in one encoder (vs TMC22191KHC)
- Internal clocking removes an external crystal (vs TMC22191KHC)
- Dedicated genlock support (vs TMC22191KHC)
Notes de conception
Place the TMC22091KHC so that its composite, chroma, and luminance outputs follow short, controlled routes to the downstream connector or receiver. The verified logic symbol identifies these as distinct analog outputs. Keep sensitive analog routing away from switching-converter inductors and high-speed clocks, use a continuous ground reference, and confirm the manufacturer's recommended reference and bypass network against the complete datasheet before releasing the PCB.
Treat pixel-clock and frame-buffer signals as timing-critical rather than ordinary utility logic. The encoder supports 24-bit and 15-bit GBR/RGB 444 inputs and fully programmable timing, so edge quality and clock-to-data alignment directly affect the generated raster. Use short matched routes where the implementation guidelines require it, provide solid ground returns, and validate setup and hold margins with the complete electrical timing tables.
Do not substitute the TMC22191KHC solely because it appears in the same family and package family. The verified documentation identifies 30 color-indexed overlay colors on the TMC22191, which is a functional distinction from the TMC22091. Compare every pin, supply requirement, timing parameter, and reset state in the manufacturer data before treating the related device as a drop-in replacement for an existing TMC22091KHC board.
The supplied excerpts identify reference and bypass connections but do not provide the complete power-supply limits, decoupling values, or analog-reference requirements. Use the manufacturer datasheet to determine the required supply rails and component values. In particular, preserve the documented reference-voltage and analog-bypass implementation because changing those networks may alter the composite, chroma, and luminance output quality.
Informations de conformité
The verified excerpts do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is treated as not applicable because the device is a legacy commercial video encoder rather than an automotive-qualified product.
