ADF4351BCPZ - 4.4 GHz Fractional-N PLL Synthesizer | Analog Devices
MPN: ADF4351BCPZ ✓ فعالADF4351BCPZ جائزہ
An RF frequency synthesizer generates a stable, programmable output by locking a voltage-controlled oscillator to a reference through a phase-locked loop. The ADF4351 belongs to the PLL synthesizer and clock-generator hierarchy, integrating the synthesizer, VCO, programmable dividers, reference and feedback paths, and RF output circuitry. This integration reduces board-level design effort while retaining the flexibility required for external loop-filter optimization.
According to the Analog Devices product page and datasheet, the ADF4351 supports fractional-N and integer-N synthesis, includes an integrated VCO, and is intended for wideband RF applications. The 10 MHz to 250 MHz input range and 2.2 GHz to 4.4 GHz fundamental VCO range make it suitable for microwave communication, wireless infrastructure, test equipment, radar-related RF signal chains, and frequency-agile RF systems. Its fractional-N operation permits fine frequency resolution when the reference and N-divider settings are selected appropriately.
The device requires an external loop filter and external reference frequency. Filter component selection affects loop bandwidth, phase noise, reference-spur behavior, lock time, and the amount of ripple presented to the VCO control node. Designers should evaluate loop dynamics for each output frequency rather than assuming one filter network is optimal across the full 2.2 GHz to 4.4 GHz range. The exposed pad provides the required thermal and electrical connection to the PCB.
Typical implementation places the ADF4351 between a stable reference source and an RF load or receiver/transmitter signal chain. The output can be filtered, buffered, or mixed according to the system requirement. Keep the reference and loop-filter connections short, provide clean supply decoupling, and use a controlled-impedance RF layout for the output path. Verify phase noise, spur levels, lock behavior, output power, and temperature performance with the final reference and filter implementation.
For direct replacement, verify package dimensions, exposed-pad construction, pin assignments, register compatibility, reference range, VCO range, and supply limits. A similar frequency range alone is insufficient for drop-in use. This page combines verified manufacturer and distributor information with practical PLL design considerations, comparison fields, and sourcing-oriented FAQ answers. Pricing and availability should be confirmed with authorized distributors as of 2026-10-21.
کے لیے ڈراپ اِن متبادل ADF4351BCPZ — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں ADF4351BCPZ (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Output Frequency Range, Package.
ADF4351BCPZ-RL7
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ADF4351BCPZ
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ADF4351BCPZ-RL
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ADF4351BCPZ-REEL
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ADF4350BCPZ
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ADF4351BCPZ تفصیلات
| Product Type | RF clock and frequency synthesizer IC |
| Synthesis Modes | Fractional-N and integer-N |
| Integrated VCO | Yes |
| Fundamental VCO Frequency Range | 2200 MHz to 4400 MHz |
| Maximum Output Frequency | 4400 MHz |
| Reference Input Frequency Range | 10 MHz to 250 MHz |
| Supply Voltage Range | 3 V to 3.6 V |
| پیکیج | 32-lead VFQFN exposed pad, CSP |
| Number of Circuits | 1 |
| External Components | External loop filter and external reference frequency |
| Output Frequency Range | Up to 4400 MHz |
| Input Reference Maximum Frequency | 250 MHz |
| Input Reference Minimum Frequency | 10 MHz |
| VCO Minimum Fundamental Frequency | 2200 MHz |
| VCO Maximum Fundamental Frequency | 4400 MHz |
ADF4351BCPZ 32-lead vfqfn exposed pad, csp پن کنفیگریشن گائیڈ
ADF4351BCPZ (32-lead vfqfn exposed pad, csp پیکیج) کے لیے پن کنفیگریشن۔ پن نمبرنگ، فنکشنز اور کنکشن ڈایاگرامز مینوفیکچرر کے ڈیٹا شیٹ میں بیان کیے گئے ہیں۔ درست فٹ پرنٹ اور سولڈرنگ رہنما ہدایات کے لیے اسی سے رجوع کریں۔
کے لیے تفصیلی پن آؤٹ ڈیٹا دستیاب نہیں ADF4351BCPZ.
رجوع کریں ڈیٹا شیٹ مکمل پن کنفیگریشن کے لیے۔
عام استعمالات
ADF4351BCPZ کے لیے موزوں ہے 6 ایپلیکیشنs: RF Communications, Wireless Infrastructure, RF Test and Measurement, Radar and Microwave Systems, Frequency-Sweep Test Systems, RF Signal-Chain Demonstration.
RF Communications
The ADF4351BCPZ fits programmable RF communication links that need a 2200 MHz to 4400 MHz synthesized source. Its integrated VCO reduces the number of external oscillator blocks, while fractional-N operation supports fine frequency planning against a 10 MHz to 250 MHz reference. Place the device near the RF matching network and design the external loop filter for the required lock time and spur performance. The final RF budget must include output filtering, reference phase noise, and measured lock behavior.
تجویز کردہ
Wireless Infrastructure
The ADF4351BCPZ can provide a programmable RF source in wireless infrastructure equipment operating within its 2200 MHz to 4400 MHz VCO range. Fractional-N synthesis is useful when the system needs fine channel spacing, while integer-N operation can simplify some frequency plans. Use a clean reference and controlled-impedance RF routing, and validate loop-filter components against phase-noise and reference-spur limits. The exposed pad should be connected to the PCB thermal and ground system according to the Analog Devices package guidance.
تجویز کردہ
RF Test and Measurement
The ADF4351BCPZ is suitable for RF test instruments that need a programmable local oscillator or excitation signal in the 2200 MHz to 4400 MHz range. Its fractional-N mode supports fine frequency resolution, but instrument accuracy depends on the reference, calibration, loop dynamics, and output path. Measure phase noise, spurs, output power, and lock time with the final filter and fixture rather than relying on nominal synthesizer features alone.
تجویز کردہ
Radar and Microwave Systems
The ADF4351BCPZ can serve as a programmable RF source in microwave and radar-related test or signal-chain designs when the required frequency falls between 2200 MHz and 4400 MHz. The integrated VCO simplifies the RF oscillator architecture, but the external loop filter remains central to stability and spectral performance. Keep the VCO control loop compact, provide multiple supply-decoupling paths, and verify temperature, phase-noise, and spur performance across the operating band.
تجویز کردہ
Frequency-Sweep Test Systems
The ADF4351BCPZ supports programmable frequency generation for RF sweep and characterization systems. Fractional-N mode can provide fine resolution, while the 2200 MHz to 4400 MHz fundamental VCO range covers a substantial microwave band. The external loop filter and reference frequency must be chosen for the desired sweep rate and settling behavior. A controlled impedance output, suitable shielding, and measured spur filtering are important when converting the synthesizer into a precision test source.
تجویز کردہ
RF Signal-Chain Demonstration
The ADF4351BCPZ is useful for laboratory RF signal-chain demonstrations because it combines an integrated VCO with programmable fractional-N and integer-N synthesis. It can generate a tunable RF reference for evaluating mixers, filters, amplifiers, and detector boards in the 2200 MHz to 4400 MHz range. Preserve the manufacturer's recommended supply and exposed-pad layout, use a stable reference, and include an RF output matching structure so that the measured behavior reflects the intended operating conditions.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا ADF4351BCPZ — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | ADF4351BCPZ-RL7 | ADF4351BCPZ | ADF4351BCPZ-RL | ADF4351BCPZ-REEL | ADF4350BCPZ |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
اہم امتیازی خصوصیات
- Integrated 2.2 GHz to 4.4 GHz VCO (بمقابلہADF4350BCPZ)
- Wide reference-input range (بمقابلہADF4351BCPZ-RL7)
- 32-lead exposed-pad implementation (بمقابلہADF4351BCPZ-RL)
ڈیزائن نوٹس
Keep the ADF4351BCPZ supply network short and decouple the 3 V to 3.6 V analog supply close to the device pins. Place bulk and high-frequency decoupling according to the Analog Devices recommended layout, and keep the RF output return path separate from sensitive reference and loop-filter routing. Confirm the final rail tolerance, startup sequence, and ground continuity on the assembled PCB.
Do not select a replacement solely by matching the 32-lead package or the 4.4 GHz headline frequency. Verify pin assignments, exposed-pad construction, reference-input limits, supply range, register compatibility, VCO range, and ordering-temperature information. The supplied cross-reference data confirms related ADF4351 variants but does not fully quantify every drop-in difference.
Design the external loop filter for the intended reference frequency, divider settings, lock time, phase noise, and spur requirements. Keep the loop-filter components close to the control node and use a stable reference with low phase noise. Because PLL performance depends on the complete loop, measure lock time, spurs, and phase noise using the final component values and PCB layout.
تعمیل کی معلومات
The supplied verified data does not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for the exact ADF4351BCPZ. Confirm current compliance with Analog Devices before procurement.
