ADF4118YRUZ - 3.0 GHz Integer-N PLL | Analog Devices
料号： ADF4118YRUZ ✓ 量产中ADF4118YRUZ 概述
A phase-locked loop is a feedback-control system that locks an output oscillator phase to a reference signal. The ADF4118 compares its divided feedback output with a reference through the phase-frequency detector. The detector and charge pump convert phase and frequency error into a correction voltage for the internal voltage-controlled oscillator, or VCO. In an RF transceiver, this closed-loop arrangement produces a stable local-oscillator signal while suppressing phase noise and reference-multiplication effects. The device therefore belongs to the frequency-synthesizer and clock-and-timing hierarchy before broader categories such as RF signal-generation ICs and semiconductor devices.
The manufacturer's ADF4116, ADF4117, and ADF4118 family documentation identifies programmable reference division, A-counter and B-counter functions, and a dual-modulus prescaler as central features. These controls let a designer establish the relationship among the reference frequency, prescaler, counters, and generated RF output. For the ADF4118YRUZ, the 3.0 GHz headline frequency makes the device relevant to radio systems operating below or around that upper limit, including wireless transceivers and test equipment. The exact operating supply, current consumption, noise, lock-time, and counter ranges should be confirmed from the manufacturer datasheet before final circuit release.
Typical uses include wireless receiver local oscillators, transmitter upconversion and downconversion chains, industrial RF test equipment, and communication modules requiring programmable frequency generation. In a typical design, the reference oscillator feeds the reference divider and PFD, while the VCO output is divided through the prescaler and counters before being returned to the loop. Correct charge-pump current, loop-filter values, VCO gain, and reference frequency determine lock behavior and phase noise.
A key design consideration is loop stability. Keep the feedback divider, loop filter, and RF output path compact, use stable reference and decoupling components, and account for charge-pump mismatch when the loop is driven into cycle slipping. This page combines the verified product identity, manufacturer family description, sourcing guidance, and engineering-oriented design guidance to support component selection before a schematic is released.
For purchasing, stock, and lead-time confirmation, use the Request a Quote form on this page and specify the exact ADF4118YRUZ ordering code. Do not substitute a different package suffix without checking land pattern, pin functions, exposed-pad requirements, and production status against the manufacturer datasheet.
直接替换替代料： ADF4118YRUZ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料ADF4118YRUZ 规格参数
| Product Type | Single integer-N PLL frequency synthesizer |
| Maximum RF Output Frequency | 3.0 GHz |
| Architecture | Integer-N |
| Channel Count | 1 channel |
| 引脚数 | 16 pins |
| Nominal Supply Voltage | 3 V |
| 工作温度范围 | -40 °C to +125 °C |
| Phase-Frequency Detector | Low-noise digital PFD |
| Charge Pump | Precision charge pump |
| Reference Divider | Programmable |
| A Counter | Programmable 5-bit counter |
| B Counter | Programmable counter |
| Prescaler | Programmable dual-modulus P/(P+1) prescaler |
| Divider Architecture | Integer-N |
| Typical Function | RF local-oscillator generation |
| Production Status | Production |
| 安装方式 | Surface mount |
ADF4118YRUZ standard 引脚配置指南
ADF4118YRUZ（standard 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： ADF4118YRUZ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ADF4118YRUZ 适用于 6 应用s: Wireless Receiver Local Oscillator, Wireless Transmitter Upconversion, Industrial RF Test Instrument, RF Communication Module, RF Frequency-Source Subsystem, Portable RF Test Probe.
Wireless Receiver Local Oscillator
The ADF4118YRUZ fits a wireless receiver local-oscillator stage because its 3.0 GHz integer-N PLL can synthesize the mixer LO required by RF downconversion. The family datasheet identifies wireless receiver downconversion as a direct use for the ADF411x architecture. In the circuit, the reference divider and dual-modulus prescaler establish the feedback ratio while the A and B counters program the desired division. Confirm phase noise, spur levels, lock time, and loop-filter stability against the receiver sensitivity and adjacent-channel requirements before finalizing the design.
推荐
Wireless Transmitter Upconversion
The ADF4118YRUZ can serve as the programmable RF local oscillator in a wireless transmitter upconversion chain. Its single integer-N synthesis architecture supports deterministic programming of the feedback divider through the reference divider, counters, and P/(P+1) prescaler. This is useful when the transmit frequency must change under firmware control while retaining a shared reference and synthesizer topology. Engineers should verify output-power requirements, harmonic content, settling time, and spectral mask performance against the transmitter power amplifier and modulation chain.
推荐
Industrial RF Test Instrument
A programmable integer-N PLL is valuable in industrial RF test equipment that generates repeatable carrier signals for receiver characterization, calibration, or sensor testing. The ADF4118YRUZ's 3.0 GHz capability supports carrier generation near the upper end of its range, while the counter-based divider provides a practical way to set synthesis ratios. Use a low-noise reference, stable VCO, and appropriately designed loop filter, and quantify phase noise and lock time with the actual reference because both directly affect measurement repeatability.
推荐
RF Communication Module
The ADF4118YRUZ can provide the tunable local-oscillator reference for compact RF communication modules that require programmable carrier generation below 3.0 GHz. Integrating the frequency synthesizer with a separate VCO allows the circuit to be adapted to different bands and reference conditions. The design should account for PCB-induced phase noise, isolation between the VCO and sensitive digital paths, reference-feedthrough effects, and loop stability across temperature. Firmware must also constrain reprogramming rates to the verified lock behavior of the intended loop.
推荐
RF Frequency-Source Subsystem
The ADF4118YRUZ can form the central phase-locked frequency-source element of an RF subsystem that combines a stable reference, a VCO, the ADF4118 loop, and a programmable divider. Its integrated PFD, charge pump, reference divider, counters, and dual-modulus prescaler reduce the number of separate synthesizer functions required. The subsystem designer must select loop-filter components from the actual VCO gain and phase-noise target, then validate reference spurs, VCO pulling, settling behavior, and unwanted coupling into adjacent channels under worst-case operating conditions.
推荐
Portable RF Test Probe
A portable RF test probe can use the ADF4118YRUZ to generate a controlled excitation or reference tone for evaluating sensors, antennas, and communication modules. Its programmable integer-N divider permits multiple test frequencies while retaining one reference source. For portable equipment, thermal rise and supply efficiency are important because the synthesizer and its associated VCO may compete for limited battery power. Keep the reference and RF paths short, protect the chain from electrostatic discharge, and verify frequency accuracy, phase noise, and settling time across the probe's operating temperature range.
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推荐产品汇总
工程参考数据： ADF4118YRUZ ——对比、设计指导和合规信息。
选型指南
设计说明
Use the manufacturer pin-description table and package drawing as the authority for all PCB connections. Place the reference-decoupling network close to the supply pins and keep the reference and feedback-divider routes compact and away from noisy RF or switching paths. The verified product information establishes a 16-pin device but does not identify every pin function, so do not infer a footprint from another ADF411x member.
Do not assume ADF4116, ADF4117, ADF4106, or ADF4153 devices are drop-in replacements for the ADF4118YRUZ. Similar synthesizer architecture does not guarantee identical counter widths, prescaler options, register maps, pin assignments, or package dimensions. A valid substitution requires a verified 16-lead land pattern, complete pin-function review, and comparison of reference-divider range, prescaler values, lock behavior, supply limits, and phase noise.
Design the supply network around the final regulator, VCO, charge-pump, and digital-interface requirements rather than a nominal 3 V label alone. Keep regulator output impedance and reference noise low because they can appear as phase noise and spur products inside the PLL loop. Confirm the exact supply range and current limits from the manufacturer datasheet, and provide local high-frequency bypass capacitance according to the recommended application circuit.
合规信息
No explicit compliance statements are present in the verified product information. The product page identifies the ADF4118 as a production part and the family datasheet describes its RF PLL functions.
