ADF4113BCPZ - 4 GHz Integer-N PLL | Analog Devices
料号： ADF4113BCPZ ✓ 量产中ADF4113BCPZ 概述
An integer-N frequency synthesizer is a PLL-based clock and timing IC that locks a voltage-controlled oscillator to a stable reference frequency. The ADF4110 family hierarchy places the device among RF frequency synthesizers, clock generators, timing ICs, and integrated circuits. Integer-N architecture simplifies channel selection by using integer division ratios, while the phase-frequency detector and charge pump compare the divided feedback signal with the divided reference to correct oscillator phase and frequency errors.
The ADF4113 supports an input reference frequency up to 165 MHz and an RF synthesis range extending to 4 GHz. Its programmable prescaler and integer-N counters provide flexible division ratios for wireless communications equipment. A low-noise digital phase-frequency detector and precision charge pump form the core feedback loop, supporting stable local-oscillator operation where predictable phase locking and programmable channel spacing are important.
The family architecture includes a programmable reference divider, 6-bit A counter, 13-bit B counter, and dual-modulus P/P+1 prescaler. These blocks determine the synthesized output relationship to the reference input. The ADF4113 is therefore suited to RF up-conversion and down-conversion sections where a local oscillator must cover multiple channels without the complexity of fractional-N feedback.
Typical uses include wireless receiver and transmitter local oscillators, GSM and RF communication systems, instrumentation equipment, and other frequency-generation subsystems. The 20-lead LFCSP exposed-pad package supports compact surface-mount layouts, while the exposed thermal pad provides a path for heat removal when the device operates in a demanding RF subsystem.
Designers should follow the manufacturer datasheet for the pin-description table, recommended loop-filter values, reference-divider settings, charge-pump current selection, and PCB layout. Correct grounding of the exposed pad and careful routing of the reference, RF output, and synthesizer feedback paths are essential for predictable phase-locking performance and low spurious content.
This page combines the ADF4113 product identity, package information, application guidance, drop-in comparison, and practical design notes. Use the manufacturer datasheet for final register programming, loop-bandwidth calculations, PCB reference geometry, and operating-limit verification.
直接替换替代料： ADF4113BCPZ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ADF4113BCPZ （相同外形与封装尺寸） ——差异在于 Package, Prescaler, Product Type.
ADF4113HVBCPZ
✅ 直接替换📋 参考替代料（不在目录中）
ADF4113BCPZ 规格参数
| Product Type | Single integer-N RF PLL frequency synthesizer |
| Maximum RF Output Frequency | 4 GHz |
| Minimum RF Operating Frequency | 5 MHz |
| Maximum Reference Input Frequency | 165 MHz |
| PLL Architecture | Integer-N |
| Number of Synthesizers | 1 |
| A Counter | 6 bits |
| B Counter | 13 bits |
| Prescaler | Programmable dual-modulus P/P+1 |
| 输出类型 | Clock |
| Input Logic Level | CMOS/TTL |
| 封装 | 20-lead LFCSP with exposed pad |
| 安装类型 | Surface mount |
ADF4113BCPZ 20-lead lfcsp with exposed pad 引脚配置指南
ADF4113BCPZ（20-lead lfcsp with exposed pad 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： ADF4113BCPZ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ADF4113BCPZ 适用于 6 应用s: Wireless Receiver Local Oscillator, Wireless Transmitter Up-Conversion, GSM RF Test Equipment, RF Down-Conversion Receiver, Programmable RF Signal Source, Communications RF Module.
Wireless Receiver Local Oscillator
The ADF4113BCPZ fits a wireless receiver local-oscillator block that requires programmable RF output across a 5 MHz to 4 GHz operating range. Its integer-N architecture combines a 6-bit A counter, 13-bit B counter, and programmable P/P+1 prescaler, allowing channel plans to be established through integer division ratios. The phase-frequency detector and precision charge pump close the feedback loop around the voltage-controlled oscillator. A 13 MHz reference example and 200 kHz GSM channel spacing are identified in the family documentation, although the exact reference divider and loop filter depend on the selected channel plan and phase-noise target.
推荐
Wireless Transmitter Up-Conversion
The ADF4113BCPZ can generate the programmable local oscillator required by a wireless transmitter up-conversion stage. Its RF synthesis capability reaches 4 GHz, while the programmable reference divider, A counter, B counter, and prescaler support flexible integer-N frequency ratios. Because an integer-N loop avoids the fractional spur and digital-divider behavior of a fractional-N synthesizer, it can simplify channel selection when integer channel spacing is acceptable. The loop bandwidth, charge-pump current, reference divisor, and external filter must be calculated for the target phase noise and lock-time requirements.
推荐
GSM RF Test Equipment
The ADF4113BCPZ is appropriate for GSM-oriented RF test equipment that needs a stable, programmable local-oscillator source with narrow channel spacing. Analog Devices specifically describes a 13 MHz TCXO reference divided by 65 to produce a 200 kHz reference increment for GSM channel spacing. The device combines that reference path with integer-N A and B counters and a dual-modulus prescaler. Designers should set the reference divider, prescaler, and counters consistently, then verify lock range, phase noise, spurious levels, and acquisition time across the intended operating envelope.
推荐
RF Down-Conversion Receiver
The ADF4113BCPZ supports RF down-conversion receivers that require a local oscillator covering multiple channels from 5 MHz to 4 GHz. Its integer-N feedback architecture provides programmable channel selection using a 6-bit A counter, 13-bit B counter, and programmable prescaler. The low-noise digital phase-frequency detector and precision charge pump are the principal loop elements, so their configuration directly influences phase noise and reference spurs. Place the device according to the manufacturer layout guidance, especially around the reference input, charge-pump loop filter, RF output, ground plane, and exposed thermal pad.
推荐
Programmable RF Signal Source
The ADF4113BCPZ can serve as the synthesizer core in a programmable RF signal source covering frequencies up to 4 GHz. The reference divider and integer-N counters allow a stable reference to be mapped to multiple output channels, while the dual-modulus prescaler expands the available division choices. Its benefit is straightforward integer-ratio programming and analog RF synthesis rather than a digital fractional-N divider. The principal engineering trade-off is that integer-N channel planning may require less convenient ratios than a fractional-N architecture, making the counter and prescaler combinations central to feasibility.
推荐
Communications RF Module
The ADF4113BCPZ is suitable for compact communications RF modules requiring local-oscillator synthesis in a surface-mount package. The 20-lead LFCSP exposed-pad format reduces board area compared with larger leaded packages while providing a thermal path into the PCB ground system. Its 4 GHz maximum RF output and programmable prescaler suit multiple wireless conversion architectures. The exposed pad should be connected and thermally coupled according to the manufacturer layout instructions, and the reference and loop-filter components should be placed to minimize routing length and unwanted coupling into sensitive RF paths.
推荐
工程参考数据： ADF4113BCPZ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ADF4113HVBCPZ |
|---|---|---|
| Package | 20-lead LFCSP with exposed pad | 20-lead LFCSP with exposed pad - same |
| Brand | Analog Devices | Analog Devices |
| Product Type | Single integer-N RF PLL frequency synthesizer | ADF4113-family RF PLL frequency synthesizer |
| PLL Architecture | Integer-N | Integer-N family architecture |
| A Counter | 6 bits | 6 bits |
| B Counter | 13 bits | 13 bits |
| Prescaler | Programmable dual-modulus P/P+1 | Programmable dual-modulus P/P+1 family architecture |
| Temperature Grade | Standard grade | Extended-temperature grade |
关键差异点
- Single-chip integer-N synthesis to 4 GHz （对比 ADF4153BCP)
- Documented 5 MHz to 4 GHz operating range （对比 ADF4106BCPZ)
- Compact exposed-pad RF integration （对比 ADF4113HVBCPZ)
设计说明
Use the manufacturer pin-description table when assigning the 20 LFCSP leads and exposed pad. Keep the reference input, phase-frequency detector, charge-pump output, and external loop-filter components close together, and route the charge-pump and feedback paths away from sensitive RF and clock nets. Connect the exposed pad to the PCB ground structure with the land pattern and via arrangement shown in the ADF4110 family datasheet.
Decouple each supply connection with the capacitance and placement specified by the manufacturer. Keep the supply and ground paths short because the PLL reference and charge-pump systems are sensitive to supply disturbance. Verify bypass-capacitor voltage ratings, effective capacitance over temperature, and the exposed-pad ground connection before applying power; incorrect grounding can degrade phase noise and lock behavior.
Do not select a replacement solely because it uses a 20-lead LFCSP package. The ADF4113 relies on a specific integer-N counter, prescaler, charge-pump, and register architecture. Confirm that the reference-divider value and P, A, and B settings produce the intended RF output, and validate lock range, phase noise, reference spurs, and acquisition time with the chosen external VCO and loop filter.
Treat the reference, charge-pump loop filter, feedback, and RF output as separate high-sensitivity paths. Avoid routing the reference clock beneath digital or switching-converter nodes, and keep the loop-filter return current within the quiet ground region. If the design requires low spurious content, evaluate reference-divider settings and charge-pump current experimentally because both affect phase noise and lock dynamics.
合规信息
The manufacturer identifies the ADF4113 as production, but the retrieved product and distributor listings do not state the requested compliance classifications.