ADF4007BCPZ - 7.5 GHz PLL Synthesizer | Analog Devices
Артикул: ADF4007BCPZ ✓ АктивенADF4007BCPZ Обзор
A phase-locked loop, or PLL, is a frequency-control architecture that locks an output oscillator to a stable reference. It belongs to the clock and timing hierarchy, where a phase-frequency detector compares two signals, a charge pump produces an adjustment voltage, and a loop filter controls loop dynamics. The ADF4007 supplies the detector, charge pump, and programmable divider functions, while an external VCO and loop filter complete the synthesis loop.
The ADF4007BCPZ supports an RF operating range of 20 MHz to 7.5 GHz, a maximum PFD frequency of 120 MHz, and a permanently fixed reference divide ratio of 2. Its reference input can operate up to 240 MHz. Two external control pins set the divider or prescaler value, allowing the integer-N division ratio to be configured for the target output frequency.
Its low-noise digital PFD and precision charge pump support low phase-noise synthesis when paired with a correctly designed loop filter. The manufacturer datasheet shows approximately -100 dBc/Hz phase noise at a 10 kHz offset from the carrier in the example circuit. Loop-filter selection also attenuates spurs, with the illustrated circuit producing spurs below -90 dBc.
Typical uses include wireless transceiver local oscillators, microwave synthesizers, frequency converters, test-and-measurement signal sources, and communication equipment requiring programmable division from a reference clock. The 3.3 V supply arrangement also fits systems where the RF section and charge-pump headroom are managed as separate functions.
When implementing the device, use the manufacturer pin-description table to assign all 20 LFCSP connections and preserve the exposed-pad grounding requirement. Component values for the loop filter and RSET network should be calculated from the intended reference frequency, division ratio, VCO gain, target phase noise, and lock-time requirements.
This page combines the ADF4007BCPZ specifications, verified source links, application guidance, and drop-in alternatives with practical PLL design considerations. It also identifies the trade-offs among confirmed same-package replacements so engineers can evaluate PCB reuse without assuming unverified cross-brand equivalence.
Аналоги без доработки для ADF4007BCPZ — 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 ADF4007BCPZ (тот же форм-фактор и посадочное место) — отличается по Package, Reference Divider Ratio.
ADF4007BCP-REEL
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ADF4007BCPZ-RL7
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ADF4007BCPZ Характеристики
| RF Operating Frequency Range | 20 MHz to 7.5 GHz |
| Maximum RF Frequency | 7.5 GHz |
| Maximum PFD Frequency | 120 MHz |
| Supply Voltage Range | 2.7 V to 3.3 V |
| Typical Supply Current | 15 mA |
| Reference Input Maximum Frequency | 240 MHz |
| Reference Divider Ratio | 2 (fixed) |
| Typical Phase Noise | -100 dBc/Hz at 10 kHz offset |
| Typical Spur Level | Below -90 dBc |
| Количество выводов | 20 pins |
| Корпус | 20-LFCSP with exposed pad |
| Тип монтажа | Surface mount |
| Divider or Prescaler Control | 2 external control pins |
| Charge Pump Supply | Separate VP supply for extended tuning voltage |
Руководство по цоколевке ADF4007BCPZ в корпусе 20-lfcsp with exposed pad
Цоколевка для ADF4007BCPZ (корпус 20-lfcsp with exposed pad). 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 ADF4007BCPZ.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
ADF4007BCPZ подходит для 6 применениеs: Wireless Transceiver Local Oscillator, Microwave Frequency Synthesizer, Programmable RF Signal Source, Frequency Conversion and IF Generation, Communications Test and Measurement, Clocked RF and Microwave Module.
Wireless Transceiver Local Oscillator
The ADF4007BCPZ fits wireless transceiver local-oscillator generation where a stable reference must be multiplied or divided into an RF carrier. Its RF path reaches 7.5 GHz, while the phase-frequency detector handles frequencies up to 120 MHz, allowing the divider and reference arrangement to be matched to the transceiver’s channel plan. The low-noise digital detector and precision charge pump support the phase-noise behavior required by demanding RF chains. With an external VCO and a loop filter calculated for the intended division ratio, the synthesizer can deliver a programmable local oscillator with the illustrated example reaching approximately -100 dBc/Hz at a 10 kHz offset. The 2.7 V to 3.3 V supply range and 15 mA listed current also suit compact radio modules.
Рекомендуется
Microwave Frequency Synthesizer
The ADF4007BCPZ is appropriate for a programmable microwave synthesizer requiring an RF operating ceiling of 7.5 GHz. Its divider or prescaler value is selected through two external control pins, and the permanently fixed reference divide ratio of 2 simplifies the relationship between the reference and phase detector. An external voltage-controlled oscillator supplies the microwave carrier, while the ADF4007BCPZ and a calculated loop filter close the phase-locked loop. According to the Analog Devices ADF4007 datasheet, Rev. B, the example implementation produces spurs below -90 dBc, making loop-filter design and layout important when spectral purity is a primary requirement. The 20-LFCSP exposed-pad package supports compact RF module integration.
Рекомендуется
Programmable RF Signal Source
The ADF4007BCPZ can serve as the synthesizer core in a programmable RF signal source used for receiver testing, calibration, or frequency sweep generation. Its RF input range extends from 20 MHz to 7.5 GHz, and the programmable divider permits a reference clock to be converted into multiple RF output frequencies under digital control. The 120 MHz PFD capability provides headroom for reference arrangements commonly used in integer-N architectures. A designer should select an external VCO with suitable tuning gain and phase noise, then use the Analog Devices loop-filter method to balance lock time against spectral performance. The resulting 20-LFCSP implementation combines a small footprint with the approximately -100 dBc/Hz at 10 kHz offset behavior shown in the manufacturer’s example circuit.
Рекомендуется
Frequency Conversion and IF Generation
The ADF4007BCPZ is useful in frequency-conversion and intermediate-frequency generation blocks where multiple synthesized frequencies must remain phase-related to a system reference. Dividing the reference through the programmable prescaler and driving an external VCO with the charge pump allows a common reference to establish coherent outputs. The fixed reference divide ratio of 2 and reference input capability up to 240 MHz provide specific constraints when calculating the complete frequency plan. Loop stability depends on VCO gain, phase-detector gain, loop bandwidth, and the chosen filter, so the Analog Devices calculation method should be followed rather than copying a generic component set. The 20-LFCSP exposed-pad package helps minimize board area while requiring careful thermal and RF layout practices.
Рекомендуется
Communications Test and Measurement
The ADF4007BCPZ supports communications test equipment requiring a programmable, reference-locked RF source across a broad frequency range. Its 20 MHz to 7.5 GHz RF range covers many wireless measurement bands, while the integer-N divider structure allows a stable reference to establish channel-specific outputs. The Analog Devices ADF4007 datasheet, Rev. B, demonstrates phase noise near -100 dBc/Hz at a 10 kHz offset and spurs below -90 dBc with the illustrated loop filter. Those results provide a useful starting point, but actual instrument performance depends on the selected VCO, reference phase noise, isolation, and filtering. The compact 20-LFCSP package is advantageous when synthesizer density is needed in automated test systems.
Рекомендуется
Clocked RF and Microwave Module
The ADF4007BCPZ fits compact RF and microwave modules that require local frequency generation from a common low-frequency reference. Its 2.7 V to 3.3 V operating range supports 3 V-class system rails, and the listed 15 mA supply current is suitable for power-constrained RF equipment. The device divides the reference, compares phase through the digital PFD, and drives an external VCO through the charge-pump path. Because the RF side reaches 7.5 GHz and the PFD reaches 120 MHz, the designer can select divider ratios and reference frequencies that satisfy both sides of the loop. The exposed-pad LFCSP requires correct land-pattern and ground design, while a separated VP connection can provide the tuning-voltage headroom described by the manufacturer.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ADF4007BCPZ — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ADF4007BCP-REEL | ADF4007BCPZ-RL7 |
|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Package | 20-LFCSP with exposed pad | 20-LFCSP with exposed pad - same package | 20-LFCSP with exposed pad - same package |
| Maximum RF Frequency | 7.5 GHz | 7.5 GHz | 7.5 GHz |
Ключевые отличия
- Combines divider, digital PFD, and charge-pump functions in one 20-LFCSP device (против ADF4007BCP-REEL)
- Current manufacturer ordering option is recommended for new designs (против ADF4007BCPZ-RL7)
- Supports a 240 MHz maximum reference input with a fixed divide ratio of 2 (против ADF4007BCPZ-RL7)
Заметки по проектированию
Use the land pattern, exposed-pad connection, and pin assignment specified in the Analog Devices ADF4007 datasheet, Rev. B. Place the device so its RF and reference connections can follow short, controlled-impedance routes, and provide a solid ground reference under the exposed pad. The LFCSP exposed pad is part of the thermal and electrical design rather than an optional mechanical feature.
Calculate the loop-filter values from the intended reference frequency, divider ratio, VCO tuning gain, target lock time, phase-noise limit, and spur requirement. The manufacturer illustrates approximately -100 dBc/Hz at a 10 kHz offset and spurs below -90 dBc, but those figures depend on the complete loop and component selection. Keep the phase-detector, charge-pump, VCO-control, and filter paths compact to reduce parasitic noise and instability.
Decouple the 2.7 V to 3.3 V supply close to the device and treat VP as a separate charge-pump connection because it supports extended tuning voltage. Check startup, supply sequencing, and the maximum voltage applied to every pin against the manufacturer limits. The listed 15 mA supply current applies to the main operating condition; total system demand must also include external loop-filter and VCO-related requirements.
Keep the RSET, reference, RF-input, charge-pump, and loop-filter paths away from digital return currents and switching nodes. Use a compact ground reference around the exposed pad and avoid long traces that increase parasitic inductance in the phase-detection loop. For production RF designs, verify the selected VCO’s tuning range and noise behavior against the 7.5 GHz maximum operating frequency before finalizing the component layout.
Информация о соответствии
The Analog Devices product page recommends ADF4007 for new designs but does not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is treated as not applicable because this is not presented as an automotive-qualified variant.
