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Analog Devices Inc. ADF4110BCPZ-RL
- Part No.:
- ADF4110BCPZ-RL
- Manufacturer:
- Analog Devices Inc.
- Package:
- 20-WFQFN Exposed Pad, CSP
- Datasheet:
-
ADF4110BCPZ-RL.pdf
- Description:
- IC CLK/FREQ SYNTH 20LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,137
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Product details
Overview
ADF4110BCPZ-RL from Analog Devices is a 550 MHz RF PLL frequency synthesizer IC used as a local oscillator in upconversion/downconversion stages of wireless transceivers. It features a 24-bit programmable N-divider (N = BP + A), 14-bit R counter, dual-modulus prescaler (8/9, 16/17, 32/33, 64/65), 3-wire serial interface, and analog/digital lock detect - enabling precise frequency synthesis for GSM/PCS base station transmitters.
For engineers reviewing the ADF4110BCPZ-RL datasheet, ADF4110BCPZ-RL pinout, ADF4110BCPZ-RL application, or ADF4110BCPZ-RL equivalent, key selection criteria include its 550 MHz RF input range, 2.7–5.5 V dual-supply operation, programmable charge pump current (625 µA to 5 mA), separate VP supply for extended tuning voltage, and industrial temperature range (−40°C to +85°C).
Technical Context
The ADF4110BCPZ-RL implements a digital phase-frequency detector (PFD) with precision charge pump, programmable A (6-bit) and B (13-bit) counters, and dual-modulus prescaler to realize integer-N synthesis. Its N-divider architecture (N = BP + A) supports fine frequency resolution when paired with an external VCO and loop filter.
It operates with independent analog (AVDD) and digital (DVDD) supplies tied at same voltage, plus a dedicated charge pump supply (VP ≥ AVDD), enabling 3 V systems to drive VCOs requiring up to 6 V tuning range. Lock detection is provided via both analog comparator and digital logic outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Input Frequency | 50–550 MHz (min/max); supports GSM/PCS bands with −15 dBm sensitivity at 3 V. |
| Phase Detector Max Frequency | 55 MHz; sets upper limit on PFD rate, directly constraining loop bandwidth and reference spurs. |
| Charge Pump Current Range | 625 µA to 5 mA (programmable via RSET); enables optimization of loop filter gain and transient response. |
| Supply Voltage Range | 2.7–5.5 V for AVDD/DVDD; VP ≥ AVDD up to 6.0 V - allows extended VCO tuning voltage in 3 V systems. |
| Operating Temperature | −40°C to +85°C (industrial grade); validated across full range for stable PLL lock and phase noise performance. |
| Power Consumption | 5.5 mA max IDD (typ. 4.5 mA at 3 V); low sleep mode current (1 µA) supports power-gated RF subsystems. |
| Reference Input Range | 5–104 MHz; compatible with crystal oscillators, TCXOs, or divided-down system clocks. |
Pinout & Package
LFCSP package (3 mm × 3 mm, 16-pin, exposed paddle). The exposed paddle must be soldered to AGND for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RSET | Charge pump current setting | Resistor to CPGND sets ICPmax (e.g., 4.7 kΩ → 5 mA); nominal voltage 0.56 V. |
| CP | Charge pump output | Delivers ±ICP to external loop filter; requires low-impedance path to VCO tuning line. |
| CPGND | Charge pump ground return | Dedicated low-noise ground path for CP; must be isolated from DGND/AGND except at single point. |
| RFINA / RFINB | Differential RF input | AC-coupled inputs to prescaler; RFINA accepts small-signal VCO output; RFINB is complementary. |
| REFIN | Reference clock input | CMOS input (threshold ≈ DVDD/2); accepts 5–104 MHz signals; 100 kΩ internal termination. |
| DATA / CLK / LE | 3-wire serial interface | 24-bit shift register control: MSB-first DATA, rising-edge CLK, edge-triggered LE loads latch contents. |
| CE | Chip enable | Active-low hardware shutdown; forces CP into high-Z and disables internal logic to reduce leakage. |
| MUXOUT | Multiplexed diagnostic output | Selectable between lock detect, scaled RF, or scaled reference - aids real-time PLL validation. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable dual-modulus prescaler | Supports 8/9, 16/17, 32/33, or 64/65 division - enables wide RF input coverage while keeping prescaler output ≤165 MHz (3 V). |
| Separate VP supply | Allows VP = 6 V while AVDD = 3 V, extending VCO tuning range without level-shifting circuitry. |
| Hardware/software power-down | CE pin provides immediate analog shutdown; F2 bit enables controlled digital sleep - reduces current to 1 µA typical. |
| Antibacklash pulse width control | Programmable to minimize reference spurs caused by PFD dead zone; improves spectral purity near carrier. |
| Analog + digital lock detect | Dual outputs confirm stable phase lock: analog comparator (LOCK pin) and digital flag (MUXOUT-selectable). |
Applications
| GSM Base Station Transmitter | Wireless LAN Local Oscillator |
|---|---|
|
Use Scenario: Generating stable 900 MHz or 1800 MHz LO for upconversion in macrocell BTS power amplifiers. IC Role / Device Role / Timing Role: Integer-N PLL synthesizer providing low-phase-noise LO synchronized to 10 MHz network reference. Use Value: Achieves −91 dBc/Hz @ 1 kHz offset (540 MHz) and −97 dBc spurs, meeting GSM spectral mask requirements. |
Use Scenario: Frequency synthesis for 2.4 GHz or 5 GHz WLAN transceivers in enterprise access points. IC Role / Device Role / Timing Role: Programmable LO generator interfaced to SiGe or GaAs VCOs via external loop filter. Use Value: 3-wire interface enables dynamic channel switching; programmable prescaler supports multi-band VCO designs. |
| CDMA/WCDMA Handset Front-End | Communications Test Equipment LO |
|
Use Scenario: Compact LO generation in battery-powered handset transceivers operating across 800/1900 MHz bands. IC Role / Device Role / Timing Role: Low-power PLL core with 1 µA sleep mode and 4.5 mA active current at 3 V. Use Value: Extended tuning voltage (via VP) supports wideband VCOs; lock detect ensures fast channel acquisition. |
Use Scenario: Precision frequency source in signal analyzers, vector signal generators, and RF production testers. IC Role / Device Role / Timing Role: High-stability synthesizer referenced to oven-controlled 10 MHz clock with low jitter. Use Value: Phase noise floor of −215 dBc/Hz and <2% ICP matching ensure repeatable measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PLL synthesizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADF4111BCPZ-RL | Higher RF input range (0.08–1.2 GHz); identical pinout, interface, and register map. | Required for PCS/DCS 1800/1900 MHz bands; not suitable for sub-500 MHz legacy GSM. | Select ADF4111BCPZ-RL only if RF input exceeds 550 MHz; otherwise ADF4110BCPZ-RL offers optimal noise/power trade-off. |
| LMX2531LQ1720E/NOPB | Integrated VCO (1.72–2.0 GHz); no external VCO needed; different 3-wire protocol and register structure. | Reduces BOM count in compact handhelds but lacks flexibility for custom VCOs or multi-band designs. | Choose LMX2531LQ1720E/NOPB for space-constrained, single-band apps; retain ADF4110BCPZ-RL for VCO-agnostic, high-performance RF front-ends. |
Compared with ADF4111BCPZ-RL and LMX2531LQ1720E/NOPB, the ADF4110BCPZ-RL delivers superior phase noise below 550 MHz, lower power at 3 V, and full design flexibility with external VCO selection - making it optimal for cost-sensitive, high-volume GSM infrastructure and handset platforms.
Availability
ADF4110BCPZ-RL is available at Aetrix Electronics and suitable for GSM base station transmitters, wireless LAN access points, CDMA handset front-ends, and communications test equipment requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for ADF4110BCPZ-RL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and RF ICs, headquartered in Norwood, MA, with deep expertise in precision timing, signal processing, and wireless infrastructure solutions.
The ADF4110BCPZ-RL belongs to Analog Devices' ADF411x family of integer-N PLL synthesizers, designed specifically for low-phase-noise, low-power local oscillator generation in wireless communication systems from cellular infrastructure to portable devices.
FAQ
What is the maximum RF input frequency supported by the ADF4110BCPZ-RL?
The ADF4110BCPZ-RL supports an RF input frequency range of 50 MHz to 550 MHz at 3 V operation. This is explicitly specified in the datasheet's "RF CHARACTERISTICS (3 V)" table under "ADF4110" row. Operation below 50 MHz requires slew rate >30 V/µs to ensure reliable prescaler triggering.
Does the ADF4110BCPZ-RL require an external VCO?
Yes, the ADF4110BCPZ-RL requires an external voltage-controlled oscillator (VCO). As stated in the General Description, "A complete phase-locked loop (PLL) can be implemented if the synthesizer is used with an external loop filter and voltage controlled oscillator (VCO)." It provides only the PLL core - no integrated resonator or VCO.
How is charge pump current programmed on the ADF4110BCPZ-RL?
Charge pump current is set by an external resistor (RSET) connected between the RSET pin and CPGND. The relationship is ICPmax = 5.23 / RSET (kΩ) mA. For example, a 4.7 kΩ resistor yields ~5 mA maximum sink/source current, as confirmed in Table 4 and the Specifications section.
What package type does the ADF4110BCPZ-RL use?
The ADF4110BCPZ-RL uses a 16-lead LFCSP (Lead Frame Chip Scale Package), 3 mm × 3 mm, with exposed paddle. Figure 4 and the "Outline Dimensions" section (Page 27) confirm this package; the "-RL" suffix denotes tape-and-reel packaging for automated assembly.
Can the ADF4110BCPZ-RL operate from a single 3.3 V supply?
Yes - AVDD and DVDD must be equal and can be set to 3.3 V (within 2.7–5.5 V range). However, VP must be ≥ AVDD; for extended VCO tuning, VP may be set to 5 V or 6 V independently. This separation is critical for achieving >3 V tuning range in 3.3 V systems.
ADF4110BCPZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 20-WFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Clock/Frequency Synthesizer (RF)
- PLL:
- Yes
- Input:
- CMOS, TTL
- Output:
- Clock
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 2:1
- Differential - Input:Output:
- Yes/No
- Frequency - Max:
- 550MHz
- Divider/Multiplier:
- Yes/No
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 20-LFCSP (4x4)
ADF4110BCPZ-RL FAQ
1.How can I place an order for ADF4110BCPZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADF4110BCPZ-RL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADF4110BCPZ-RL reliable?
The price and inventory of ADF4110BCPZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADF4110BCPZ-RL is usually 5 days.
3.What payment methods are accepted for ADF4110BCPZ-RL?
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4.How is shipping managed for ADF4110BCPZ-RL?
ADF4110BCPZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADF4110BCPZ-RL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADF4110BCPZ-RL?
For technical support, including ADF4110BCPZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADF4110BCPZ-RL requirements.
6.How does Aetrix verify that ADF4110BCPZ-RL is sourced from the original manufacturer or authorized distributors?
All ADF4110BCPZ-RL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADF4110BCPZ-RL meets industry standards.
7.What is the process for return or replacement of ADF4110BCPZ-RL?
All ADF4110BCPZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADF4110BCPZ-RL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADF4110BCPZ-RL part is unused and in its original packaging.
Return procedure for ADF4110BCPZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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