ADF5000BCPZ - 18 GHz Divide-by-2 RF Prescaler | Analog Devices
MPN: ADF5000BCPZ ✓ نشطADF5000BCPZ نظرة عامة
An RF prescaler is a clock-and-timing semiconductor that divides an input carrier into a lower-frequency signal while preserving the phase relationship needed by phase-locked loops. The ADF5000 belongs to the RF prescaler hierarchy, where it serves as a fixed divide-by-2 block ahead of a PLL such as the ADF4156 or ADF4106. Its differential outputs reduce common-mode effects and provide a suitable interface to compatible RF clock circuits.
The primary features of the ADF5000BCPZ include operation to 18 GHz, a fixed divide-by-2 function, low-noise and low-power operation, a 3.3 V supply requirement, and differential 100 ohm RF outputs. These characteristics make it particularly useful when a synthesizer requires an RF input above the native frequency range of its PLL front end. The exposed pad also provides the primary thermal path when used in space-constrained microwave assemblies.
Technically, the ADF5000 is intended as a fixed divider rather than a programmable integer divider. Its divide ratio is not selected by a register or external control interface. The RF signal therefore enters the prescaler, is divided by two, and exits through the differential output network for subsequent phase comparison or frequency measurement. The verified manufacturer documentation identifies the ADF4156 and ADF4106 as example downstream PLL devices.
Typical applications include microwave synthesizer subsystems, phase-locked-loop reference chains, RF test and measurement equipment, wireless infrastructure, satellite communications, and instrumentation requiring division of carrier frequencies into a range accepted by a PLL or counter. The differential 100 ohm output arrangement is particularly valuable in controlled-impedance RF layouts.
Designers should preserve controlled impedance on the RF input and output paths, provide the supply decoupling specified by the manufacturer datasheet, and validate the exposed-pad thermal design at the highest operating frequency. RF trace geometry, return paths, component placement, and ground-plane continuity can materially affect divider performance at microwave frequencies.
This product page combines the verified manufacturer specifications, distributor availability, purchasing guidance, comparison fields, and practical RF design considerations. Missing electrical details are explicitly identified rather than inferred, allowing engineers to evaluate the ADF5000BCPZ against the requirements of their specific microwave design.
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اطلب بدائلADF5000BCPZ المواصفات
| Device Type | Fixed RF divide-by-2 prescaler |
| Maximum Input Frequency | 18 GHz |
| Minimum Input Frequency | 4 GHz |
| Divide Ratio | 2:1 |
| جهد التغذية | 3.3 V |
| نوع الخرج | Differential RF |
| Output Impedance | 100 ohm differential |
| عدد المخارج | 1 differential output |
| العلبة | 16-lead WFQFN with exposed pad |
| Package Code | CP |
| نوع التركيب | Surface mount |
| Temperature Grade | Industrial |
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التطبيقات النموذجية
ADF5000BCPZ مناسب لـ 6 التطبيقs: Microwave PLL Frequency Synthesizer, RF Clock Divider, RF Test and Measurement Equipment, Wireless Communication Infrastructure, Satellite and Microwave Communications, Precision RF Instrumentation.
Microwave PLL Frequency Synthesizer
The ADF5000BCPZ fits a microwave PLL front end that must divide an RF carrier before phase comparison. Its verified upper input frequency is 18 GHz, while its fixed divide-by-2 function produces a lower-frequency signal for a PLL such as the ADF4156 or ADF4106. This arrangement is useful when the source carrier exceeds the PLL's practical input range. The 3.3 V supply simplifies rail planning, and differential 100 ohm outputs support controlled-impedance routing. Design verification must still establish input sensitivity, phase-noise contribution, matching, and the downstream PLL's required input level.
موصى به
RF Clock Divider
The ADF5000BCPZ can serve as a dedicated RF clock-divider stage in systems that need a stable divide-by-2 relationship between a high-frequency carrier and downstream circuitry. Its 4 GHz to 18 GHz input range covers microwave sources while keeping the fixed ratio simple to implement and verify. The differential 100 ohm output arrangement can reduce signal-integrity problems associated with single-ended interstage connections. Because this is an RF prescaler rather than a general-purpose logic divider, the design must use suitable RF packaging and controlled-impedance layouts rather than conventional digital clock routing.
موصى به
RF Test and Measurement Equipment
The ADF5000BCPZ is appropriate for microwave test equipment that must condition a carrier before measurement or synchronization. Its 18 GHz maximum input frequency and fixed divide-by-2 ratio allow an instrument front end to extend the usable input range of a PLL or counter. Differential 100 ohm outputs are useful in test fixtures where impedance control and return-path integrity are essential. System-level suitability depends on the required input sensitivity, phase noise, temperature range, and calibration method, none of which can be evaluated completely from the abbreviated distributor listings.
موصى به
Wireless Communication Infrastructure
The ADF5000BCPZ can be used in RF communications infrastructure where a local oscillator must be divided before entering a phase-locked loop. The 18 GHz ceiling suits microwave communication links, and the differential 100 ohm RF outputs provide a defined interface for controlled-impedance routing. The fixed divide-by-2 ratio is attractive when only one frequency relationship is required, avoiding unnecessary programmable-divider complexity. Deployment conditions should be checked against the part's verified environmental ratings, and the board must provide stable RF reference planes and an effective thermal path from the exposed pad.
موصى به
Satellite and Microwave Communications
The ADF5000BCPZ can divide microwave carrier frequencies in satellite or microwave-communication signal chains before PLL comparison or frequency processing. Its 3.3 V operation and divide-by-2 architecture provide a straightforward way to bring an 18 GHz signal toward the input range of a downstream synthesizer. Differential 100 ohm outputs are particularly useful for compact microwave boards where trace geometry and grounding affect repeatability. Engineers should assess phase noise, insertion-loss tolerance, temperature range, and regulatory requirements using the full manufacturer datasheet before committing to the design.
موصى به
Precision RF Instrumentation
The ADF5000BCPZ can be incorporated into precision RF instrumentation that derives a lower-frequency reference from a microwave source. The low-noise, low-power divider concept and fixed divide-by-2 operation are useful in phase-sensitive measurement paths where a programmable divider would add unnecessary complexity. The differential 100 ohm outputs help maintain controlled RF behavior between modules. Final performance depends on the complete signal chain, including source impedance, interconnect loss, noise behavior, power-supply integrity, and the phase-noise requirements of the receiving instrument, so those characteristics must be verified from the official datasheet.
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ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ADF5000BCPZ — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج |
|---|---|
| Device Function | Fixed divide-by-2 RF prescaler |
| Input Frequency Range | 4 GHz to 18 GHz |
| Divide Ratio | 2:1 |
| Supply Voltage | 3.3 V |
| Output Interface | Differential RF |
| Output Impedance | 100 ohm differential |
| Package | 16-lead WFQFN with exposed pad |
| Brand | Analog Devices |
| Industrial Temperature Grade | Industrial |
ملاحظات التصميم
Treat the input and output as RF interfaces rather than ordinary digital nets. Use controlled-impedance routing, short interconnects, continuous reference planes, and symmetrical routing for the differential 100 ohm outputs. Place the input and output matching or bias components identified by the manufacturer reference design close to their corresponding pins. The supplied web data does not include a complete layout drawing or stack-up, so use the official ADF5000 datasheet for exact geometry rather than extrapolating dimensions.
The 16-lead WFQFN includes an exposed thermal pad, so the PCB must provide the package's specified pad connection and a low-impedance thermal path. Keep exposed-pad vias close to the thermal structure and avoid placing thermally restrictive changes on adjacent layers. The verified data does not state junction-to-ambient thermal resistance or maximum junction temperature, so a numerical thermal design cannot be completed without those manufacturer ratings.
Implement the 3.3 V supply using the decoupling and layout arrangement shown in the manufacturer datasheet. Keep the regulator or supply source physically separated from the high-frequency RF path where practical to reduce conducted and radiated coupling. Verify startup, supply sensitivity, and current consumption across the intended carrier frequency and temperature range because those detailed limits are not included in the supplied distributor snippets.
Do not treat similarly named ADF-series parts as automatic drop-in replacements. A valid substitute must match the 16-lead footprint and pin functions, 4 GHz to 18 GHz input range, fixed divide-by-2 ratio, 3.3 V supply, and differential 100 ohm output behavior. The supplied cross-reference search names ADF5001, ADF5002, and several PLL ICs, but it does not verify pin compatibility for any replacement.
معلومات الامتثال
The supplied manufacturer and distributor snippets do not explicitly provide the target MPN's environmental or regulatory declarations. AEC-Q100 status cannot be inferred from the industrial temperature-grade description.
