TMC22191R0C Digital Video Encoder | onsemi | Display Systems
料号： TMC22191R0C ✓ 量产中TMC22191R0C 概述
A digital video encoder is an interface IC in the broader display and video-processing hierarchy. It accepts already-rendered pixel data, applies programmable timing and color or overlay functions, and produces output signals for downstream display or transmission circuitry. Unlike an analog encoder, the TMC22191R0C performs its processing entirely in the digital domain, helping preserve pixel data until the final output stage and reducing reliance on external synchronization components.
Key features include support for 24-bit and 15-bit GBR/RGB 444 graphics inputs, 30 color-indexed overlay colors, fully programmable timing, and internal digital oscillators. The 15-bit input mode reduces interface width when full 24-bit color depth is unnecessary, while the 24-bit mode supports a wider color representation. The internal oscillators eliminate external crystal hardware when the application's timing can be generated digitally.
The device is designed for systems that already supply synchronous digital graphics and require flexible video timing or layered overlays. Its all-digital architecture distinguishes it from solutions that perform color processing or regeneration through analog video stages. Exact electrical limits, supported output standards, operating temperature range, and package dimensions were not supplied in the verified source excerpts and must be confirmed from the full manufacturer datasheet before design release.
Typical applications include industrial HMI panels, digital signage controllers, medical imaging interfaces, professional video equipment, instrumentation, and other embedded display systems. The 30-overlay capability is particularly useful when the source graphics must remain visible beneath cursor, menu, warning, or diagnostic information. A 15-bit interface can also simplify routing in cost-sensitive systems where 24-bit color depth is not required.
Designers should allocate the TMC22191R0C according to its complete pinout and recommended interface schematic, including power, ground, pixel-data, timing, and output connections. Because the verified excerpts do not establish the exact package, exposed-pad requirements, pin numbering, or output electrical characteristics, those details should be checked directly in the manufacturer datasheet rather than inferred from distributor category labels.
This page combines verified distributor availability, the documented input-format and overlay features, sourcing guidance, and explicit data gaps. It is intended to help engineers identify whether the TMC22191R0C matches an existing video-encoding design while separating confirmed facts from parameters that still require datasheet verification.
直接替换替代料： TMC22191R0C ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料TMC22191R0C 规格参数
| Product Type | Digital video encoder and layering engine |
| Video Processing Architecture | All-digital |
| Supported Input Color Depth | 24-bit and 15-bit |
| Supported Pixel Formats | GBR/RGB 444 |
| Color-Indexed Overlay Count | 30 colors for TMC22191 |
| Timing Control | Fully programmable |
| Oscillator Requirement | Internal digital oscillators; no crystals required |
| Manufacturer | onsemi |
| Original Manufacturer | Fairchild Semiconductor |
| Device Category | Video ICs / digital video encoder |
| Listed Unit Price | 14.4892 USD as of 2026-10-28 |
TMC22191R0C standard 引脚配置指南
TMC22191R0C（standard 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： TMC22191R0C.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TMC22191R0C 适用于 6 应用s: Industrial Human-Machine Interfaces, Digital Signage Controllers, Medical Imaging and Diagnostic Displays, Embedded Instrumentation and Test Equipment, Professional Video and Graphics Processing, Secure and Surveillance Video Displays.
Industrial Human-Machine Interfaces
The TMC22191R0C fits an industrial HMI signal chain that accepts digital pixel data from a graphics controller and requires programmable video timing. Its confirmed support for 24-bit and 15-bit GBR/RGB 444 input formats allows the system to retain broad color information or reduce interface width when required. The 30 color-indexed overlay colors can support menus, alarm indicators, cursor graphics, and status messages without modifying the underlying application display. Because the part is all-digital, pixel data remains digitally processed until the output stage, which is useful when avoiding repeated analog conversion is a system priority. Final deployment still requires confirmation of output standards, electrical levels, clock limits, and temperature ratings from the full manufacturer datasheet.
Digital Signage Controllers
A digital-signage controller can use the TMC22191R0C when the graphics engine supplies synchronous pixel data and the display timing must be generated or adjusted downstream. The device’s fully programmable timing architecture is relevant to systems that need programmable output timing, while its internal digital oscillators remove the need for a crystal-based timing source. The TMC22191R0C also accepts both 24-bit and 15-bit GBR/RGB 444 data, providing flexibility between color fidelity and interface routing complexity. For multi-panel or long-cable installations, engineers must still verify the supported output electrical specifications, pixel-clock ceiling, package routing requirements, and signal-integrity margins before selecting the device for a particular signage panel.
Medical Imaging and Diagnostic Displays
The TMC22191R0C may be used between a medical-imaging processor and a compatible diagnostic display when the architecture provides digital RGB graphics and benefits from programmable timing. Its all-digital encoder path avoids unnecessary analog conversion inside the processing chain, while 24-bit input can preserve a larger color representation for grayscale, color, or annotation workflows. The 30 indexed overlay colors offer a practical mechanism for patient-information markers, calibration prompts, or diagnostic overlays. The verified data does not state medical certification, electrical limits, or temperature range, so this use requires separate quality-system review, reliability assessment, and confirmation that the display interface timing exactly matches the device capabilities.
Embedded Instrumentation and Test Equipment
The TMC22191R0C is applicable to laboratory and embedded instrumentation designs that generate local video for an operator display, waveform presentation, or diagnostic interface. Programmable timing can coordinate the encoded output with a general-purpose controller, while the internal digital oscillator reduces the number of external timing components. A 15-bit GBR/RGB 444 mode can simplify routing where the full 24-bit color depth is unnecessary, and indexed overlays can identify channels, warnings, or calibration states. Engineering validation should cover pixel timing, output jitter, synchronization, electrical levels, and package routing because those detailed limits are not included in the verified search excerpts and must be established from the full manufacturer documentation.
Professional Video and Graphics Processing
The TMC22191R0C can serve in professional video and graphics-processing equipment that receives already-rendered digital frames and requires an all-digital encoding and layering stage. Its support for 24-bit GBR/RGB 444 accommodates high-color-depth graphics, while programmable timing offers control over the relationship between incoming pixel data and generated video timing. The TMC22191’s 30 color-indexed overlay colors add a dedicated layer for test patterns, titles, cursors, or status information. Because the source excerpts do not define resolution limits, output interfaces, clock frequency, or synchronization tolerances, the device should be selected only after the complete datasheet and target video standard have been compared with the system requirements.
Secure and Surveillance Video Displays
A surveillance system can use the TMC22191R0C when a digital video processor drives a local display and needs programmable video timing plus graphics overlays. Indexed overlay colors can identify camera zones, alarms, operator prompts, timestamps generated by upstream logic, or diagnostic messages while preserving the underlying video image. The all-digital processing path is compatible with architectures designed to keep video in digital form until final display generation. This application does not by itself imply security certification or suitability for every camera format. Before integration, verify supported video-output timing, synchronization behavior, electrical interfaces, operating-temperature requirements, and the security implications of overlay controls against the complete manufacturer documentation.
工程参考数据： TMC22191R0C ——对比、设计指导和合规信息。
选型指南
关键差异点
- All-digital video encoding （对比 Conventional analog video encoder implementations)
- Choice of 24-bit and 15-bit pixel interfaces （对比 Fixed-width video encoder implementations)
- Integrated overlay and timing functions （对比 Basic digital timing-only devices)
设计说明
Do not treat every TMC22191-family ordering code as a drop-in replacement. The verified evidence does not establish identical packages, pin assignments, output standards, or timing ranges. Before substituting a part, compare the manufacturer pinout, power rails, pixel-data mapping, clock inputs, synchronization signals, output electrical characteristics, and programming registers. A connector-compatible-looking package is not sufficient evidence of functional equivalence.
Plan the PCB from the authoritative package drawing and recommended layout rather than a distributor thumbnail. Route the 24-bit or 15-bit pixel-data bus with matched layers and continuous reference planes, keep high-speed clock and timing traces short, and provide local decoupling exactly as specified by the manufacturer. Confirm whether the package has an exposed thermal pad and whether that pad requires a solder mask opening, ground connection, and thermal-via array.
Validate pixel-clock edge rate, output impedance, trace length, grounding, and connector behavior with the actual source and display load. The TMC22191R0C uses all-digital timing generation, but digital processing does not eliminate PCB losses, ringing, crosstalk, or connector discontinuities. Use scope measurements on the slowest available pixel clock and validate the selected GBR/RGB 444 data mapping, overlay timing, and output waveform before production release.
合规信息
The supplied distributor and datasheet-index excerpts do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than inferred.
