MK2058-01SI - 27MHz Clock Jitter Attenuator | Renesas Electronics
Артикул: MK2058-01SI ✓ АктивенMK2058-01SI Обзор
A clock jitter attenuator is a timing-integrity device that reduces unwanted phase variation in a reference clock before it is distributed to a digital system. Clock generators and PLLs are members of the clock and timing IC hierarchy, while the MK2058-01SI specializes in conditioning an existing reference. Its VCXO-based architecture combines an oscillator with a phase-locked loop to attenuate jitter inherited from the incoming source or interconnect path.
The verified feature set includes one clock channel, a 27 MHz maximum frequency, LVCMOS-compatible input and output signaling, and a 2:1 input-to-output division ratio. The single-ended architecture means that neither the input nor the output is differential. These characteristics make the device suitable for system clock distribution where a 2:1 divided clock and single-ended LVCMOS interface match the receiving logic.
The MK2058-01SI integrates a PLL and a voltage-controlled crystal oscillator rather than functioning only as a frequency divider. This architecture is intended to suppress clock jitter while maintaining a stable system reference. Because the input and output are single-ended, board-level return paths and clock trace topology remain important; short connections, a controlled ground reference, and avoidance of disruptive nearby circuitry can help preserve timing quality.
Typical uses include communications equipment, networking systems, embedded digital platforms, and clock-distribution subsystems operating below or at 27 MHz. It is particularly relevant when the source clock exhibits timing variation and the downstream circuitry benefits from a conditioned 2:1 reference. The 20-SOIC surface-mount package supports conventional PCB assembly, although the available 0.295-inch, 7.50 mm-wide body requires careful lead spacing and thermal-layout consideration.
Designers should verify crystal selection, loop-filter settings, input waveform quality, and output-drive requirements against the manufacturer datasheet before production release. The data identifies the device as a VCXO-based jitter attenuator, but the supplied source material does not expose the complete recommended external-component list or all electrical characteristics.
This page consolidates the verified Renesas and distributor facts for the MK2058-01SI, distinguishes confirmed specifications from missing datasheet parameters, and explains selection trade-offs without presenting unsupported substitutions as drop-in equivalents.
Аналоги без доработки для MK2058-01SI — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Для этого товара нет аналогов без доработки.
Запросить аналогиMK2058-01SI Характеристики
| Product Type | VCXO-based clock jitter attenuator IC |
| Maximum Frequency | 27 MHz |
| Number of Circuits | 1 |
| PLL | Yes |
| Input Logic Level | LVCMOS |
| Output Logic Level | LVCMOS |
| Input-to-Output Ratio | 2:1 |
| Differential Input | No |
| Differential Output | No |
| Supply Voltage Range | 3.15 V to 3.45 V |
| Корпус | 20-SOIC (0.295 inch, 7.50 mm width) |
| Тип монтажа | Surface Mount |
| Packaging | Tube |
| Статус RoHS | Compliant |
Руководство по цоколевке MK2058-01SI в корпусе 20-soic (0.295 inch, 7.50 mm width)
Цоколевка для MK2058-01SI (корпус 20-soic (0.295 inch, 7.50 mm width)). Нумерация выводов, функции и схемы подключения определены в техническом описании производителя. Обратитесь к нему для точного посадочного места и рекомендаций по пайке.
Нет подробных данных о распиновке для MK2058-01SI.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
MK2058-01SI подходит для 6 применениеs: Communications System Clock Distribution, Networking Equipment Reference Clock, Embedded Processor Clock Conditioning, Industrial Control Clock Backplane, Medical Instrument Timing Reference, Test and Measurement Instrumentation.
Communications System Clock Distribution
The MK2058-01SI fits communications equipment that receives a single-ended LVCMOS reference and needs a conditioned 2:1 clock distributed to downstream logic. Its integrated PLL, VCXO-based construction, and 27 MHz maximum operating frequency provide a defined jitter-attenuation function rather than simple frequency division. Place the device close to the clock-consuming section, use the reference configuration specified by Renesas, and maintain a continuous return path beneath the LVCMOS traces. Because the interface is single-ended, clock amplitude, edge quality, and ground-noise coupling require careful validation with an oscilloscope or high-speed timing analyzer.
Рекомендуется
Networking Equipment Reference Clock
In networking equipment, a shared system reference can accumulate timing variation through interconnects or imperfect source clocks. The MK2058-01SI is suitable when the required maximum clock is 27 MHz and the receiver expects a divided, single-ended LVCMOS clock. Its 2:1 ratio can simplify distribution by creating a half-frequency reference without using a discrete divider. The design must still validate reference stability, loop behavior, and output jitter over the intended temperature and supply range. Keep the crystal path short and isolate the output from noisy digital clocks so the attenuation stage is not exposed to avoidable crosstalk.
Рекомендуется
Embedded Processor Clock Conditioning
The MK2058-01SI can condition a 27 MHz-class reference before supplying a 2:1 LVCMOS clock to an embedded processor subsystem. This application is appropriate when edge timing quality is more important than merely dividing the reference frequency. The device operates from 3.15 V to 3.45 V and uses single-ended signaling, so the receiving device must support the resulting amplitude and edge shape. Follow the manufacturer’s crystal and loop-filter recommendations, avoid routing the clock through long stubs, and provide local bypass capacitance. Verify that the resulting jitter remains within the processor interface budget across production temperature corners.
Рекомендуется
Industrial Control Clock Backplane
An industrial control system can use the MK2058-01SI to distribute a conditioned reference to controllers, transceivers, and data-conversion equipment when the clock remains within the 27 MHz limit. The single-ended LVCMOS interface favors conventional single-ended digital routing, while the 2:1 ratio can feed a divided reference to compatible blocks. Because industrial environments can contain high-energy switching nodes, route the clock away from those areas, maintain a low-impedance ground reference, and avoid sharing return-current paths with large transient currents. Validate the design for supply sensitivity, temperature drift, startup settling, and loss of reference before functional-safety deployment.
Рекомендуется
Medical Instrument Timing Reference
The MK2058-01SI may support timing distribution inside a medical instrument when the system uses a 27 MHz maximum reference, LVCMOS signaling, and a 2:1 divided clock. Its jitter-attenuation function can help preserve clock integrity across a controlled internal backplane, although it does not independently establish medical-device compliance or safety. The manufacturer application circuit and qualification documentation must be reviewed for the exact operating environment. Critical validation should include reference-loss behavior, supply transients, temperature drift, output jitter, and electromagnetic susceptibility. Any use in a life-critical path requires application-level risk assessment and regulatory evidence beyond the component datasheet.
Рекомендуется
Test and Measurement Instrumentation
The MK2058-01SI is applicable to instrumentation that distributes a stable, divided reference among measurement or interface sections. At frequencies up to 27 MHz, its LVCMOS input and output support a straightforward single-ended clock architecture, while the 2:1 ratio can match subsystems requiring a half-frequency reference. For measurement accuracy, minimize coupling from switching converters and high-speed digital buses, and characterize phase noise, jitter, and clock settling after startup. The 20-SOIC footprint requires adequate lead clearance and careful layout, but it remains compatible with conventional surface-mount assembly processes and tube-based production handling.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MK2058-01SI — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
For the verified alternatives, the only same-family names found were order-code and packaging variants such as MK2058-01SILF, MK2058-01SITR, and MK2058-01SILFTR. They may help identify the correct orderable suffix, but they are not listed as meaningful drop-in alternatives because they do not add distinct engineering value. No verified cross-brand pin-compatible substitute was found. If an alternative is proposed, compare the pin assignment, supply range, 27 MHz limit, 2:1 ratio, single-ended LVCMOS levels, reference architecture, and jitter performance rather than relying on package name alone.
Сравнение с аналогами
| Параметр | Этот товар |
|---|---|
| Brand | Renesas Electronics |
| Package | 20-SOIC (0.295 inch, 7.50 mm width) |
| Product Type | VCXO-based clock jitter attenuator IC |
| Maximum Frequency | 27 MHz |
| Number of Circuits | 1 |
| Input Logic Level | LVCMOS |
| Output Logic Level | LVCMOS |
| Input-to-Output Ratio | 2:1 |
| Supply Voltage Range | 3.15 V to 3.45 V |
| PLL | Yes |
Ключевые отличия
- Active clock jitter attenuation rather than standalone division (против Generic 2:1 clock divider)
- Integrated single-ended LVCMOS clock path (против Discrete divider and buffer implementation)
- Defined operation through 27 MHz (против Low-frequency logic divider)
- Single-circuit system-clock implementation (против Multi-component clock-conditioning chain)
Заметки по проектированию
Treat the reference oscillator and clock outputs as timing-sensitive paths. Place the MK2058-01SI and its manufacturer-recommended crystal network close together, keep the crystal traces short, and provide a continuous ground reference. Route the LVCMOS clock away from switching nodes and high-current return paths. The single-ended interface makes trace geometry and ground return continuity especially important because either can add timing variation that offsets the benefit of jitter attenuation.
Decouple the 3.15 V to 3.45 V supply locally and verify operation across the complete supply range. Place the recommended bypass components at the IC supply and ground pins using the shortest possible current loop, and isolate the clock section from noisy switching regulators where practical. Measure startup settling and supply-induced jitter on the 27 MHz maximum-frequency output because the integrated PLL and VCXO architecture may respond differently to supply ramps than a simple digital divider.
Validate the LVCMOS clock amplitude, edge rate, duty cycle, loading, and loss-of-reference behavior at each receiver instead of relying only on nominal frequency and ratio. Use a matched reference and probe environment that does not materially add capacitance, and observe the output with sufficient bandwidth to investigate edge degradation. The available source material does not publish complete drive-strength, output-jitter, or loop-filter specifications, so those values must come from the official Renesas datasheet.
Do not assume that any 20-SOIC clock IC is a drop-in replacement for the MK2058-01SI. A valid substitute must reproduce the pin assignment, 3.15 V to 3.45 V supply range, 27 MHz operating capability, 2:1 ratio, LVCMOS interface, reference architecture, and control behavior. The supplied search results mention several MK2058-01 order-code suffixes, but those are packaging variants rather than functionally distinct replacements and must not be presented as alternative designs.
Информация о соответствии
RoHS compliance is explicitly visible in the supplied comparison data. The exact target suffix has an ambiguous lead-free status in the available snippets, so lead-free and halogen-free status remain unknown. AEC-Q100 qualification is not stated and is treated as not applicable.
