ADF4110BCP - 550 MHz Integer-N PLL | Analog Devices
MPN: ADF4110BCP ✓ ActiveADF4110BCP Overview
A phase-locked loop (PLL) is a frequency-control circuit in which a voltage-controlled oscillator is adjusted by a feedback loop until its output phase and frequency match a reference signal. The ADF4110 family is designed for local-oscillator generation in wireless receiver and transmitter upconversion and downconversion sections. Its integer-N architecture simplifies frequency planning while the programmable prescaler and charge-pump settings support tuning-range and loop-bandwidth optimization.
Key features include a 6-bit A counter, 13-bit B counter, programmable dual-modulus P/P+1 prescaler, low-noise digital phase-frequency detector, precision charge pump, and programmable reference divider. The supplied manufacturer information also identifies 5.5 V power-supply operation, a separate VP charge-pump supply for extended tuning voltage, and compatibility with 3 V systems. These functions allow the synthesizer to support wireless transceiver, RF receiver, RF transmitter, and local-oscillator designs.
Technically, the device uses a phase-frequency detector to compare a divided reference with a divided feedback signal. The resulting error drives the charge pump and tuning path, closing the feedback loop at the selected output frequency. Because it is an integer-N synthesizer, channel spacing follows the reference frequency divided by the programmable reference divider and prescaler-related integer settings. Reference phase noise, loop bandwidth, charge-pump current, and loop-filter component selection therefore materially affect phase noise and lock behavior.
ADF4110BCP is appropriate for RF and microwave designs requiring an integer-N local oscillator. Designers should preserve the required reference-decoupling and charge-pump layout, select loop-filter components for the target phase-noise and lock-time requirements, and verify the maximum 550 MHz operating limit against the complete prescaler and feedback-divider configuration.
This page combines manufacturer product information, verified pricing starting at $3.55 as of 2026-10-29, package and feature details, practical RF design guidance, and same-brand drop-in alternatives for design evaluation.
Drop-in alternatives for ADF4110BCP — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADF4110BCP (same form factor and footprint) — differing in Package, A Counter, B Counter, Prescaler, Power Supply.
ADF4111BCP
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →ADF4112BCP
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →ADF4113BCP
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →ADF4106BCPZ
✅ Drop-In📋 Reference alternative (not in catalog)
ADF4153BCPZ
✅ Drop-In📋 Reference alternative (not in catalog)
ADF4110BCP Specifications
| Product Type | Single integer-N frequency synthesizer and RF PLL |
| Maximum RF Input Frequency | 550 MHz |
| Architecture | Integer-N |
| Prescaler | Programmable dual-modulus P/P+1 prescaler |
| Phase-Frequency Detector | Low-noise digital PFD |
| Charge Pump | Precision charge pump with programmable current |
| Charge-Pump Supply | Separate VP supply allowing extended tuning voltage |
| Reference Divider | Programmable |
| A Counter | 6-bit |
| B Counter | 13-bit |
| Power Supply | 5.5 V maximum |
| System Supply Compatibility | 3 V systems |
| Package | 20-lead LFCSP |
| Mounting Type | Surface mount |
| Manufacturer | Analog Devices |
ADF4110BCP 20-lead lfcsp Pin Configuration Guide
Pin configuration for ADF4110BCP (20-lead lfcsp package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for ADF4110BCP.
Refer to the datasheet for full pin configuration.
Typical Applications
ADF4110BCP is suitable for 6 applications: Wireless Receiver Local Oscillator, Wireless Transmitter Upconverter, RF Test and Measurement Instrumentation, Industrial RF Signal Conditioning, RF Frequency Conversion Subsystem, Portable RF Communication Module.
Wireless Receiver Local Oscillator
ADF4110BCP fits a wireless receiver local-oscillator stage because it is designed for the upconversion and downconversion sections of wireless receivers and can synthesize frequencies up to 550 MHz. Its integer-N architecture combines a 6-bit A counter, 13-bit B counter, programmable reference divider, and programmable dual-modulus prescaler. The 5.5 V maximum supply supports conventional RF synthesizer rails, while the separate VP charge-pump supply permits a wider tuning-voltage range when required. Design the reference and charge-pump paths for low phase noise, and verify that the selected feedback divider and prescaler support the exact channel frequency.
Recommended
Wireless Transmitter Upconverter
ADF4110BCP can generate the local-oscillator signal used by a wireless transmitter upconverter when the required output remains within its 550 MHz maximum frequency. The precision charge pump, low-noise digital phase-frequency detector, and programmable charge-pump currents provide the core control functions needed for phase-locked RF frequency generation. The separate VP supply allows the tuning-voltage range to be extended beyond a basic system-supply arrangement. Because transmitter phase noise can affect adjacent-channel performance, reference routing, loop-filter design, and isolation from noisy supply and PA stages are critical implementation considerations.
Recommended
RF Test and Measurement Instrumentation
ADF4110BCP is suitable for compact RF instrumentation that needs a programmable integer-N source below 550 MHz. The programmable reference divider and dual-modulus prescaler provide flexibility for establishing desired test tones, while the 6-bit A and 13-bit B counters support integer frequency planning. The 20-lead LFCSP package permits a space-efficient implementation in portable or benchtop equipment. Practical implementation must minimize reference-jitter sensitivity and carefully select the loop filter so settling time and phase-noise requirements satisfy the instrument's measurement bandwidth.
Recommended
Industrial RF Signal Conditioning
ADF4110BCP can support industrial RF signal-conditioning modules that require a stable, programmable local oscillator up to 550 MHz. Its integer-N feedback architecture allows a reference frequency to be divided and multiplied into a selected carrier, while programmable charge-pump current provides an adjustment point for optimizing loop dynamics. The separate VP charge-pump supply is useful when the required tuning range exceeds what the digital supply alone can provide. In a factory environment, isolate the synthesizer reference from switching-converter noise and provide local decoupling close to both the 5.5 V supply and charge-pump supply pins.
Recommended
RF Frequency Conversion Subsystem
ADF4110BCP is appropriate for the local-oscillator element of an RF upconversion or downconversion subsystem because the manufacturer specifically identifies those wireless transmitter and receiver functions as core applications. At frequencies up to 550 MHz, the programmable dual-modulus prescaler, reference divider, and integer-N counters support deterministic channel planning. The main design trade-off is loop sensitivity: narrower loop bandwidth can improve phase noise but may lengthen lock time, while broader bandwidth locks faster but admits more reference and VCO noise. Component selection should therefore begin with the required channel spacing, reference quality, and settling specification.
Recommended
Portable RF Communication Module
ADF4110BCP can serve as the frequency synthesizer in a portable RF communication module operating within the 550 MHz limit. Its surface-mount 20-lead LFCSP package supports compact board layouts, and the programmable reference divider allows the synthesizer to work with a selected reference source. The 5.5 V supply requirement must be reconciled with the module's power budget, while separate VP capability permits tuning-voltage headroom without necessarily raising the main digital supply. Low-power design work should assess leakage indirectly through supply behavior because a specific quiescent-current value was not supplied in the verified data.
Recommended
Recommended Products Summary
Engineering reference data for ADF4110BCP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADF4111BCP | ADF4112BCP | ADF4113BCP | ADF4106BCPZ | ADF4153BCPZ |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | LFCSP-20 | LFCSP-20 | LFCSP-20 | LFCSP-20 | LFCSP-20 | LFCSP-20 |
Key Differentiators
- Lowest frequency ceiling in the compared ADF411x family (vs ADF4111BCP)
- Integer-N architecture matches the verified target family behavior (vs ADF4153BCPZ)
- Shared 20-pin LFCSP format supports board-level evaluation (vs ADF4106BCPZ)
Design Notes
Route the reference, charge-pump, feedback, and supply connections directly between the ADF4110BCP and their associated passive components. Keep the reference divider and loop-filter components close to the relevant pins, maintain a continuous ground reference, and minimize the loop area carrying charge-pump current. This arrangement limits parasitic inductance and helps preserve phase-noise and lock-time performance.
Provide the verified 5.5 V maximum supply requirement within the device's operating limits and decouple the main supply and separate VP charge-pump supply at the package. Because the VP rail supports an extended tuning-voltage range, verify its permitted voltage and polarity against the manufacturer datasheet before increasing it. Do not infer additional VP limits or capacitor values from the summary data.
Do not select an ADF411x family alternative solely because it uses a 20-lead LFCSP package. ADF4111BCP, ADF4112BCP, and ADF4113BCP provide maximum-frequency ceilings of 1.2 GHz, 3.0 GHz, and 4.0 GHz, respectively. Although the footprint is shared, confirm prescaler options, counter ranges, register compatibility, loop-filter recalculation, and required output frequency before approving a substitution.
The phase-noise and lock-time trade-off must be addressed during loop-filter design. A narrower loop generally reduces tracking of reference and VCO noise but can increase lock time, while a wider loop can settle faster but pass more noise. Use the manufacturer application guidance to select charge-pump current and passive values for the intended reference, PFD frequency, and channel plan.
Compliance Information
The supplied verified web results do not explicitly state the target part's RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from general distributor listings.
