ICS663M - 120MHz PLL Clock Synthesizer | Renesas Electronics
MPN: ICS663M ✓ نشطICS663M نظرة عامة
A phase-locked loop, or PLL, is a frequency-control building block that locks an internally generated or controlled clock to a reference signal. Within the clock and timing hierarchy, the ICS663M functions as a PLL building block combining a phase detector, charge pump, voltage-controlled oscillator, and output buffer. This allows an external timing loop to synthesize or synchronize a stable CMOS clock rather than relying only on a free-running oscillator.
The verified product information identifies the ICS663M as a low-cost PLL intended for clock synthesis and synchronization. Its principal documented parameters include one PLL circuit, one clock input, one CMOS output, no differential input or output, a 1:1 input-to-output division ratio, and operation up to 120 MHz. The 8-SOIC package provides a compact surface-mount option for clock-generation and timing circuits.
The PLL architecture makes external loop filtering an important part of the application circuit. External components can establish loop bandwidth, damping, and phase-error behavior, which influence jitter, acquisition time, and reference-clock rejection. Actual performance therefore depends on the external loop network, reference frequency, output loading, supply quality, and board layout rather than only on the nominal 120 MHz maximum.
Typical applications include reference-clock multiplication, synchronization of communications equipment, generation of a derived system clock, and recovery or conditioning of a timing signal. The ICS663M is also suitable for industrial instrumentation, test equipment, and embedded systems that require a phase-locked CMOS clock but do not require a highly integrated programmable clock generator.
Designers should provide stable supply and reference-clock connections, follow the manufacturer’s recommended loop-filter topology, and use short return paths for clock and ground. Because an 8-SOIC footprint is compact, trace geometry and capacitance control become important when maintaining signal integrity at higher clock rates.
This page combines verified distributor and manufacturer-linked product information with practical PLL design guidance, transparent comparison data, and availability details. It distinguishes documented parameters from engineering values that still require confirmation from the Renesas datasheet before schematic release or production qualification.
بدائل مباشرة لـ ICS663M — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ICS663M (نفس عامل الشكل والبصمة) — يختلف في Package, Supply Voltage Range, Device Type, Maximum Frequency, Product Type.
ICS651M
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ICS551M
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ICS542M
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ICS502M
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ICS501M
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ICS663M المواصفات
| Product Type | Phase-locked loop (PLL) building block |
| Maximum Frequency | 120 MHz |
| Number of Circuits | 1 circuit |
| PLL Type | Yes |
| Input Type | Clock |
| نوع الخرج | CMOS |
| Input-to-Output Ratio | 1:1 |
| Differential Input | No |
| Differential Output | No |
| Supply Voltage Range | 3.13 V to 5.5 V |
| العلبة | 8-SOIC (0.154 inch, 3.90 mm width) |
| نوع التركيب | Surface mount |
| Shipping Package | Tube |
| Functional Blocks | Phase detector, charge pump, voltage-controlled oscillator, and output buffer |
دليل تكوين أطراف ICS663M tube
تكوين الأطراف لـ ICS663M (حزمة tube). يتم تعريف ترقيم الأطراف والوظائف ومخططات التوصيل في ورقة البيانات الفنية من الشركة المصنعة. راجعها للحصول على البصمة الدقيقة وإرشادات اللحام.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ ICS663M.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
ICS663M مناسب لـ 6 التطبيقs: Communications Reference Clock, Industrial Instrumentation, Test and Measurement Equipment, Embedded System Clock Generation, Data Acquisition Synchronization, Frequency-Changing Reference Architecture.
Communications Reference Clock
The ICS663M is appropriate for communications equipment that needs a synthesized or synchronized CMOS clock up to 120 MHz. Its PLL building block combines a phase detector, charge pump, VCO, and output buffer, allowing an external loop filter to lock the output to a reference signal. The verified 1:1 ratio suits systems that already provide the desired fundamental frequency and need phase alignment rather than programmable division. Designers should preserve the 3.13 V to 5.5 V supply range, use a low-noise reference, and validate jitter and acquisition time in the final loop.
موصى به
Industrial Instrumentation
The ICS663M can support deterministic clock generation in industrial measurement and control equipment where multiple subsystems must share a stable timing relationship. Its single CMOS output and maximum 120 MHz frequency provide a compact timing solution, while the PLL architecture can synchronize the output to a common reference. Because this is a PLL building block rather than a fully programmable clock controller, the external loop network and output buffering require careful engineering. Confirm the final jitter, temperature behavior, and supply-current limits against the manufacturer datasheet.
موصى به
Test and Measurement Equipment
The ICS663M is suitable for test and measurement systems that derive a coherent clock from an external reference. Its phase-locked architecture can lock a VCO-based output to improve synchronization between a source instrument and the device under test, while the documented 120 MHz ceiling accommodates many low- and mid-speed digital test clocks. The 8-SOIC package helps conserve board area in dense instrumentation. Engineers should account for reference-to-output phase noise, output loading, and the settling time imposed by the selected external loop filter.
موصى به
Embedded System Clock Generation
The ICS663M can provide a derived CMOS clock for embedded systems that need local synchronization without dedicating a microcontroller pin to clock production. Its 1:1 ratio allows the PLL to preserve the reference frequency while improving phase alignment, and the 8-SOIC package supports compact surface-mount layouts. The device is best suited to systems whose timing requirements are known and fixed. Before deployment, verify reference purity, loop stability, startup behavior, and the maximum operating temperature against the official Renesas documentation.
موصى به
Data Acquisition Synchronization
The ICS663M can help synchronize sampling or conversion systems by producing a clock phase-locked to a common reference. A fixed 1:1 relationship is useful when the source already operates at the desired sampling rate, while the PLL building block permits an external loop network to establish filtering and damping. At up to 120 MHz, the device can serve many data-acquisition timing architectures, although converter aperture and sampling requirements ultimately determine whether a dedicated jitter-cleaning clock device is needed. Validate timing margin and clock integrity on the finished board.
موصى به
Frequency-Changing Reference Architecture
The ICS663M can participate in a frequency-changing reference architecture in which an external feedback network and loop filter establish the relationship between the reference clock and the PLL output. Although the verified device is described as having a 1:1 ratio, PLL building blocks may be configured through their external network, so the final frequency relationship must be derived from the official application circuit. This approach can produce a controlled clock while retaining the 8-SOIC footprint. It is preferable to programmable clock ICs when the required outputs and divider structure are limited.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ICS663M — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | ICS651M | ICS551M | ICS542M | ICS502M | ICS501M |
|---|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
أبرز الفروقات
- Documented maximum operating frequency (مقابلICS651M)
- Single integrated PLL building-block architecture (مقابلICS502M)
- Defined supply-voltage operating range (مقابلICS551M)
ملاحظات التصميم
The verified operating range is 3.13 V to 5.5 V. Place the supply bypass capacitor adjacent to the IC power and ground pins, provide a low-impedance return path, and keep switching-regulator routing away from the reference and feedback inputs. The supplied data does not include the recommended capacitor values or output-current limits, so those values must be taken from the Renesas application guidance rather than selected from generic PLL examples.
Use short, continuous traces for the reference, feedback, and clock outputs, with a solid ground plane beneath the device. Route the external loop-filter network close to the charge-pump and VCO-related pins specified by the manufacturer, and avoid routing these sensitive nodes beneath digital clock or switching nodes. Because the ICS663M operates up to 120 MHz, controlled trace geometry and minimized parasitic capacitance are important for preserving phase margin and predictable jitter.
Do not treat a related ICS-series part as a drop-in replacement without comparing every pin, the external loop-filter topology, output drive, supply range, and frequency limits. The verified information identifies a 1:1 ratio, but the external network and feedback configuration determine the final operating behavior. A schematic can appear compatible while producing different jitter, acquisition time, or phase error, so validate the replacement with the original loop components and target reference clock.
Assess clock-edge quality at the far end of the trace rather than only at the ICS663M output. Account for trace loss, load capacitance, return-path discontinuities, and any downstream fanout. If the output drives a long cable, another device, or a high-capacitance node, add an appropriate buffer rather than relying on the PLL output buffer. The verified snippets do not provide edge-rate or drive-current data, so these limits require confirmation from the datasheet.
معلومات الامتثال
The supplied verified web results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals compliance. These values remain unknown rather than being inferred from the manufacturer or package.