ICS512MT - 200MHz LOCO PLL Clock Multiplier | Renesas | 8-SOIC
Артикул: ICS512MT ✓ АктивенICS512MT Обзор
A clock multiplier is a phase-locked loop (PLL) based timing device that takes a low-cost, low-frequency reference source - typically a crystal oscillator running between 2 MHz and 50 MHz - and synthesises a much higher, phase-locked output frequency. In the product hierarchy, a clock multiplier sits under clock generator ICs, inside clock and timing ICs, within integrated circuits, and ultimately falls under the broader timing and clocking element of any digital or RF system. Its purpose is to deliver high-quality, stable, jitter-controlled timing from an inexpensive reference.
Key features of the ICS512MT include a PLL with bypass capability, a maximum output frequency of 200 MHz, a 1:2 input-to-output ratio, CMOS output signalling, and a single clocking circuit on board. The bypass mode allows the same board to be used in test or low-power configurations where the PLL lock time or power consumption is undesirable. Because the part is a multiplier rather than a general-purpose fractional-N synthesiser, the design is simpler, cheaper, and typically lower in phase noise than a programmable synthesizer of comparable output rate.
Technically the ICS512MT uses a phase-locked loop that compares a divided output against the reference input and continuously corrects the internal voltage-controlled oscillator until the multiplier ratio is satisfied. Locking behaviour, reference-to-output jitter, output drive strength, and supply requirements are governed by the manufacturer datasheet, which should be consulted for absolute maximum ratings, recommended decoupling, and crystal load-capacitance selection.
Typical uses include telecommunications line-card and base-station clocking, networking equipment clock synthesis, instrumentation and test-and-measurement front ends, industrial control and data acquisition systems, and any board that must convert a modest-frequency oscillator into a 200 MHz domain clock for high-speed serial links or ADC/DAC sampling systems.
When designing around this device, pay particular attention to reference jitter and loop bandwidth: a crystal reference with excessive phase noise will multiply that noise by the same ratio at the output, and a noisy reference cannot be corrected downstream. Keep supply decoupling tight and route the crystal or reference input away from high-current switching nodes to preserve the low-jitter behaviour the LOCO architecture is intended to deliver.
This page consolidates the device specification, family drop-in options in the same SOIC-8 footprint, comparison tables and practical design notes, giving an engineer the decision context that a bare distributor listing does not.
Аналоги без доработки для ICS512MT — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с ICS512MT (тот же форм-фактор и посадочное место) — отличается по Number of Circuits, Package.
512MILFT
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
512MLFT
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ICS512MLF
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ICS512M
✅ Прямая заменаУточнить цену
Открыть даташит →ICS512MLFT
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
ICS512MT Характеристики
| Device Type | Clock Generator / PLL Clock Multiplier |
| PLL | Yes, with bypass |
| Input Type | Clock or crystal |
| Тип выхода | CMOS |
| Maximum Output Frequency | 200 MHz |
| Input Frequency Range | 2 MHz to 50 MHz |
| Multiply Ratio (Input:Output) | 1:2 |
| Number of Circuits | 1 |
| Product Line | LOCO PLL Clock Multiplier |
| Корпус | 8-SOIC, 0.154 in (3.90 mm) body width |
| Тип монтажа | Surface Mount |
| Manufacturer | Renesas Electronics Corporation |
| Original Developer | Integrated Circuit Systems / IDT |
| Differential Output | No |
Руководство по цоколевке ICS512MT в корпусе 8-soic, 0.154 in (3.90 mm) body width
Цоколевка для ICS512MT (корпус 8-soic, 0.154 in (3.90 mm) body 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 ICS512MT.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
ICS512MT подходит для 6 применениеs: Telecommunications Line-Card Clocking, Networking Equipment Clock Synthesis, Test and Measurement Instrumentation, Industrial Control and Data Acquisition, High-Speed Serial Link Clocking, RF and Wireless Transceiver Support.
Telecommunications Line-Card Clocking
The ICS512MT suits line-card and base-station designs that need a 200 MHz domain clock derived from a single inexpensive oscillator. With a 1:2 multiply ratio, a 2 MHz to 50 MHz reference is lifted to a 200 MHz ceiling, and the CMOS output drives parallel buses and moderate-speed serial links without adding a separate oscillator. The PLL bypass path is valuable in equipment that needs to pass the reference through during boot or low-power states, while the simple fixed-ratio architecture keeps board area and bill of materials smaller than a programmable synthesizer would.
Рекомендуется
Networking Equipment Clock Synthesis
Networking chassis commonly need a low-jitter 200 MHz reference for PHY, backplane and fabric clock domains. The ICS512MT provides that clock from a single crystal reference, avoiding the cost and complexity of a programmable clock generator when only one multiplied frequency is required. Because the device is a dedicated PLL multiplier rather than a fractional-N synthesizer, the loop is simpler and typically quieter, which matters when the multiplied clock feeds SerDes and switching fabrics. The 8-pin SOIC footprint also keeps routing simple on space-constrained line cards.
Рекомендуется
Test and Measurement Instrumentation
Bench instruments and ATE need a coherent sampling clock across multiple converters. The ICS512MT delivers a fixed 1:2 multiplication of a 2 MHz to 50 MHz reference, reaching the 200 MHz output class needed to clock ADC front ends and data converters consistently. Because the same multiplied clock feeds every converter in the chain, channel-to-channel coherence is preserved without complex distribution. The bypass mode also allows calibration routines to substitute a laboratory reference directly, isolating the instrument from the on-board oscillator during alignment.
Рекомендуется
Industrial Control and Data Acquisition
PLC and data-acquisition boards often need a deterministic high-speed clock for motor-control PWM timing, timer inputs and ADC sampling, while still relying on a single low-cost oscillator. The ICS512MT supplies a stable 200 MHz-class clock from a 2 MHz to 50 MHz source, so the reference oscillator can be a low-cost crystal unit instead of a high-frequency part. The wide SOIC-8 package and straightforward bypass control suit designs where component count and layout simplicity matter more than programmable frequency agility.
Рекомендуется
High-Speed Serial Link Clocking
Parallel-to-serial converters and legacy multi-gigabit links need a low-jitter forwarded clock, and the ICS512MT provides one from a modest reference oscillator. A 1:2 multiplication keeps the reference requirement low, and the 200 MHz output class covers many LVDS and CMOS clocking requirements in legacy designs. Reference jitter scales directly by the ratio at the output, so the design must use a low-phase-noise crystal and short, isolated reference routing. The PLL bypass input offers a path for injecting a lab clock during validation without redesigning the board.
Рекомендуется
RF and Wireless Transceiver Support
RF and wireless modules often need a multiplied clock to feed synthesizers, mixers and converters, and the ICS512MT offers a low-cost way to derive a 200 MHz-class signal from a compact oscillator. Because the output is CMOS and the device is a fixed 1:2 multiplier, it fits cleanly into the digital support circuitry around an RF front end rather than serving as the frequency synthesizer itself. Designers should keep the reference path away from high-power RF and switching nodes, since reference phase noise is multiplied by the same ratio and degrades close-in spur performance.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ICS512MT — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | 512MILFT | 512MLFT | ICS512MLF | ICS512 |
|---|---|---|---|---|---|
| Package | 8-SOIC, 0.154 in (3.90 mm) width | 8-SOIC - same footprint | 8-SOIC - same footprint | 8-SOIC - same footprint | 8-SOIC - same footprint |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Device Type | Clock Generator / PLL Clock Multiplier | Clock Generator / PLL Clock Multiplier | Clock Generator / PLL Clock Multiplier | Clock Generator / PLL Clock Multiplier | Clock Generator / PLL Clock Multiplier |
| Maximum Output Frequency | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz |
| Multiply Ratio | 1:2 | 1:2 | 1:2 | 1:2 | 1:2 |
| PLL Bypass | Yes, with bypass | Yes, with bypass | Yes, with bypass | Yes, with bypass | Yes, with bypass |
| Output Type | CMOS | CMOS | CMOS | CMOS | CMOS |
| Number of Circuits | 1 | 1 | 1 | 1 | 1 |
| Input Type | Clock or crystal | Clock or crystal | Clock or crystal | Clock or crystal | Clock or crystal |
Ключевые отличия
- Fixed 1:2 multiplier reaches a 200 MHz output ceiling without a programmable divider (против ICS512)
- PLL bypass integrated in the same 8-pin SOIC footprint (против 512MILFT)
- Wide 2 MHz to 50 MHz reference acceptance range (против 512MLFT)
- Single-circuit CMOS architecture keeps the multiplier simpler than a synthesizer class part (против ICS512MLF)
Заметки по проектированию
Reference phase noise is multiplied by the same 1:2 ratio at the output, so a marginal crystal oscillator directly caps the jitter performance of the whole clock tree. Use a low-phase-noise crystal, keep the crystal traces short and symmetric, and place the crystal capacitors adjacent to the device pins with a tight ground return. Keep the reference path away from switching nodes, inductors and high-current return paths, and include a ground guard trace where the board is densely routed.
Layout for the 8-pin SOIC footprint should treat the device as a high-speed digital component even though it is only a multiplier. Place the input decoupling capacitor on the same side of the board as the supply pin with a short ground via immediately adjacent, and route the clock output on a controlled-impedance trace terminated to match the receiver's load. Avoid routing the clock beneath or alongside noisy analogue sections, and avoid a via in the clock output path, since a single discontinuity on a 200 MHz edge degrades the duty cycle.
A common design error is assuming the multiplier can be reconfigured at runtime - the ratio is fixed at 1:2, so the output frequency always equals twice the reference. Another is ignoring PLL lock time at power-up: allow the loop to settle before the downstream logic is released from reset, particularly if the reference is supplied from a slow-starting oscillator. Finally, verify the crystal load capacitance from the 512 datasheet and the crystal vendor's CL specification, because an incorrect load shifts the oscillator frequency and therefore the multiplied output.
Supply current on this part scales with the PLL operating state and output frequency, so the bypass path is a genuine power lever in designs that spend time idle. Provide a stable, decoupled supply rail and confirm the recommended operating voltage window and absolute maximum ratings in the 512 datasheet before committing to a system rail, since the multiplier is often placed near the sequencing block of the design. If the downstream load is not clocked continuously, gating the bypass control reduces dissipation without affecting startup behaviour.
Информация о соответствии
No RoHS, REACH or AEC-Q100 statements were captured for this device, so those fields remain unknown. The part is a commercial-grade clock and timing IC; no automotive qualification claim is made for the ICS512MT.
