ICS1523M - 250MHz Video Clock Synthesizer | Renesas | SOIC-24
N.º de pieza: ICS1523M ✓ ActivoICS1523M Descripción general
A clock synthesizer, also called a clock generator or phase-locked-loop-based timing device, produces one or more timing signals whose frequency and phase are controlled relative to an external reference. In a phase-locked system, the internal output remains synchronized to the reference while the feedback network determines the desired relationship. This category belongs to the Clock & Timing hierarchy, which includes clock generators, frequency synthesizers, phase-locked loops, clock buffers, and timing controllers used to coordinate digital and video systems.
The principal documented feature of the ICS1523M is its 250 MHz operating frequency. Its phase-controlled frequency-generation capability makes it suitable where a system requires adjustable or externally synchronized clocks rather than a fixed-frequency oscillator. The manufacturer describes the ICS1523 family as a low-cost, high-performance solution for general-purpose clock synthesis, line-locked and genlocked high-resolution video applications, and projectors.
The mixed-signal nature of the design is important in video timing systems. A reference signal establishes the synchronization point, while phase control permits the generated clock to be adjusted relative to that reference. This supports timing alignment across multiple video-processing stages and reduces reliance on multiple independent free-running clocks. Exact voltage, current, jitter, temperature, and programming-interface details were not included in the supplied source data and must be confirmed in the manufacturer datasheet before design release.
ICS1523M applications include professional video timing systems, video projectors, line-locked display equipment, genlocked production systems, and general-purpose phase-controlled clock modules. In these systems, the ICS1523M can provide a coordinated timing reference for converters, processors, memory interfaces, or other circuitry requiring a stable phase-related clock.
A key implementation consideration is to preserve the manufacturer's recommended reference, feedback, decoupling, and output-routing topology. Incorrect feedback connections or an unsuitable reference source can prevent phase lock or impair jitter performance. Because the verified source material does not expose complete pin assignments or electrical tables, engineers should use the official datasheet for pin connectivity, loop-filter selection, operating limits, and layout requirements.
This product summary combines the verified 250 MHz, 24-SOIC package, application positioning, pricing availability, and replacement analysis with practical design guidance. It also distinguishes documented facts from parameters that still require datasheet confirmation, helping engineers evaluate the ICS1523M without treating unspecified values as guaranteed specifications.
Alternativas directas para ICS1523M — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
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| Product Type | Clock synthesizer and frequency generator |
| Manufacturer | Renesas Electronics |
| Maximum Stated Frequency | 250 MHz |
| Phase Control | Phase-controlled clock synthesis |
| Synchronization Modes | Line-locked and genlocked operation |
| Process Technology | Low-voltage CMOS mixed-mode technology |
| Programmable Delay Interface | I2C programmable delay |
| Encapsulado | 24-pin SOIC |
| Package Width | 0.295 inch (7.50 mm) |
| Tipo de montaje | Surface mount |
Guía de configuración de pines de ICS1523M 0.295 inch (7.50 mm)
Configuración de pines para ICS1523M (encapsulado 0.295 inch (7.50 mm)). 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 ICS1523M.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
ICS1523M es adecuado para 6 aplicacións: Line-Locked High-Resolution Video, Genlocked Video Production Equipment, Video Projector Clocking, General-urpose Phase-Controlled Clock Module, High-speed Video Processing Clock Distribution, Synchronized Test and Measurement Equipment.
Line-Locked High-Resolution Video
The ICS1523M fits line-locked video systems where a 250 MHz generated clock must remain phase-related to an external synchronization source. Its phase-controlled frequency-generation capability helps align timing across video-processing stages instead of allowing each stage to free-run independently. The device is specifically described by Renesas as suitable for line-locked, high-resolution video applications. Designers should preserve the manufacturer's recommended reference and feedback topology, then verify timing margins at the target refresh rate and resolution. This arrangement can reduce inter-stage phase drift, but final loop stability and jitter performance must be evaluated with the actual reference clock, feedback network, and video timing requirements.
Recomendado
Genlocked Video Production Equipment
The ICS1523M is suitable for genlocked production systems where multiple video paths must operate from a coherent external timing reference. Its phase-controlled synthesis provides more flexibility than a fixed oscillator and supports the synchronism expected in professional video environments. At up to 250 MHz, it addresses high-speed timing requirements while allowing the output phase to be managed relative to the reference. Implementation must account for source impedance, distribution distance, and feedback-loop stability. Engineers should also confirm that all downstream devices accept the generated clock's amplitude and timing characteristics before finalizing the system architecture.
Recomendado
Video Projector Clocking
The ICS1523M is directly suited to video projectors because the manufacturer identifies projectors as an application for the ICS1523 family. Its 250 MHz phase-controlled clock can support synchronized internal video-processing operations while retaining a defined relationship to an incoming reference. The 24-SOIC package also provides a conventional surface-mount option for projector electronics. In a projector design, clock routing quality can influence image stability and inter-component timing, so differential paths, return paths, and reference-source isolation deserve careful review. The designer should validate the complete timing chain against the panel interface and any deinterlacing or scaler device used in the product.
Recomendado
General-urpose Phase-Controlled Clock Module
The ICS1523M can serve as a general-purpose phase-controlled clock source when a system needs adjustable or externally referenced timing rather than a standalone fixed frequency. The manufacturer describes the ICS1523 as a low-cost, high-performance frequency generator using low-voltage CMOS mixed-mode technology. This makes it relevant to modular industrial timing equipment that must relate multiple internal processes to one reference. The principal design task is establishing a stable reference and feedback arrangement that supports the intended output phase. Because the verified material does not provide complete electrical or loop-filter tables, engineers should use the official datasheet for component values, stability margins, and recommended application circuitry.
Recomendado
High-speed Video Processing Clock Distribution
The ICS1523M can supply a phase-related 250 MHz clock to a high-speed video processing chain where independent oscillator phases would be undesirable. The synthesized output allows clock timing to be coordinated with the system's reference, supporting predictable data transfer among timing-sensitive blocks. Clock distribution quality remains as important as generation quality, so the design should minimize branch imbalance and provide a controlled return path. Signal-integrity review should include edge rate, load capacitance, and any divider or buffer inserted in the path. The actual usable bandwidth and jitter margin must be checked against the downstream video interface because those values were not included in the verified source extracts.
Recomendado
Synchronized Test and Measurement Equipment
The ICS1523M is applicable to synchronized test equipment that needs an external-reference-related clock rather than an independent internal oscillator. Phase-controlled synthesis can coordinate acquisition, conversion, processing, or display timing sections operating from a common reference. The 250 MHz capability supports demanding timing architectures, while the 24-SOIC package simplifies conventional board assembly. For laboratory equipment, reference purity and grounding are particularly important because they influence repeatability across instruments. The system integrator should characterize phase noise, jitter, and lock behavior with the intended reference and test the assembled board rather than relying only on nominal frequency. Exact phase-adjustment and stability limits require confirmation from the manufacturer datasheet.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ICS1523M — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Brand | Renesas Electronics |
| Package | 24-pin SOIC, 0.295 inch (7.50 mm) width |
| Maximum Stated Frequency | 250 MHz |
| Product Type | Phase-controlled clock synthesizer and frequency generator |
| Synchronization Application | Line-locked and genlocked high-resolution video |
| Technology | Low-voltage CMOS mixed-mode technology |
| Programmable Delay Interface | I2C programmable delay |
| Mounting Type | Surface mount |
Notas de diseño
Route the reference, feedback, and clock outputs using short paths with continuous return paths. Place any recommended input, loop, or decoupling components at the locations shown in the official application circuitry. High-speed clock edges can couple into adjacent video or control traces, so maintain adequate spacing and avoid routing the feedback path beneath noisy or switching nodes. Ground-plane continuity is important because the supplied source does not provide a complete layout example.
Treat the ICS1523M as a phase-sensitive timing source rather than an isolated oscillator. Verify reference amplitude, source impedance, feedback stability, and downstream loading with the intended video timing. When distributing the 250 MHz clock, account for edge rate rather than frequency alone, keep branches balanced, and place any series damping or buffering according to the manufacturer's recommendations. Exact jitter and drive specifications must be taken from the manufacturer datasheet.
Do not assume that a generic PLL, oscillator, or another ICS1523-series order code is a drop-in replacement. The verified cross-reference results did not identify a pin-compatible substitute, and the supplied data does not expose complete pin assignments, operating voltages, or ordering-table differences. Before substitution, compare the official pinout, supply range, control interface, frequency range, phase-control implementation, and package drawing for every candidate part.
Información de cumplimiento
The supplied verified sources do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields must be confirmed from the current manufacturer product page or declaration.
