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Analog Devices Inc. ADF4110BRUZ-RL
- Part No.:
- ADF4110BRUZ-RL
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADF4110BRUZ-RL.pdf
- Description:
- IC CLK/FREQ SYNTH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,570
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Product details
Overview
ADF4110BRUZ-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), dual-modulus prescaler (8/9, 16/17, 32/33, 64/65), 3-wire serial interface, and operates from 2.7 V to 5.5 V. It supports GSM/PCS/DCS base station transmitter LO generation with −91 dBc/Hz phase noise at 1 kHz offset (540 MHz output).
For engineers reviewing the ADF4110BRUZ-RL datasheet, ADF4110BRUZ-RL pinout, ADF4110BRUZ-RL application, or ADF4110BRUZ-RL equivalent, key selection criteria include RF input frequency range (80–550 MHz), charge pump current programmability (625 µA to 5 mA), lock detect capability, and TSSOP-16 package compatibility with industrial temperature operation (−40°C to +85°C).
Technical Context
The ADF4110BRUZ-RL implements a digital phase-frequency detector (PFD) with precision charge pump, 14-bit R counter for reference division, and cascaded 6-bit A and 13-bit B counters driving a dual-modulus prescaler (P/P+1). Its N-divider architecture enables fine frequency resolution while maintaining low spurious content.
It supports separate VP supply (up to 6.0 V) for extended tuning voltage headroom in 3 V systems, and integrates analog/digital lock detect plus hardware/software power-down modes. The 3-wire serial interface controls all on-chip registers with timing parameters including 10 ns data setup/hold and 25 ns clock high/low durations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Input Frequency | 80–550 MHz - supports GSM/PCS/DCS band LO synthesis without external prescaling |
| Phase Detector Max Frequency | 55 MHz - sets upper limit for PFD comparison rate and loop bandwidth design |
| Charge Pump Current Range | 625 µA to 5 mA - programmable via RSET resistor (2.7–10 kΩ), enabling loop filter optimization |
| Supply Voltage Range | 2.7 V to 5.5 V - dual AVDD/DVDD rail with independent VP supply up to 6.0 V for wider VCO tuning range |
| Phase Noise (540 MHz) | −91 dBc/Hz @ 1 kHz offset - measured at 200 kHz PFD frequency, critical for adjacent channel rejection |
| Spurious Output | −97/−106 dBc @ 200/400 kHz - ensures minimal interference in dense spectral environments |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade wireless infrastructure deployment |
Pinout & Package
TSSOP-16 package with exposed paddle (connected to AGND); RoHS-compliant, lead-free, tape-and-reel format (ADF4110BRUZ-RL).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RSET | Charge pump current setting | Resistor to CPGND sets ICPmax (e.g., 4.7 kΩ → 5 mA); nominal pin voltage = 0.56 V |
| CP | Charge pump output | Drives external loop filter; ±ICP sourcing/sinking into VCO tuning line |
| CPGND | Charge pump ground return | Dedicated low-noise ground path for CP output; must be isolated from DGND/AGND planes |
| RFINA/RFINB | Differential RF input | AC-coupled small-signal inputs to prescaler; RFINB requires 100 pF bypass to ground |
| REFIN | Reference clock input | CMOS input (threshold ≈ VDD/2); accepts 5–104 MHz TTL/CMOS or crystal oscillator signals |
| CE | Chip enable | Active-low control: logic low powers down device and places CP in 3-state mode |
| DATA/CLK/LE | 3-wire serial interface | MSB-first 24-bit shift register; LE latches data into selected register (A/B/R/function latch) |
| MUXOUT | Multiplexer output | Selectable output: lock detect signal, scaled RF, or scaled reference frequency for monitoring |
Key Features
| Feature | Design Value |
|---|---|
| Programmable dual-modulus prescaler | Supports 8/9, 16/17, 32/33, or 64/65 ratios - enables wide N-divider range while minimizing prescaler-induced phase noise |
| Separate VP supply | VP ≥ AVDD (up to 6.0 V) - extends VCO tuning voltage beyond core supply, critical for 3 V system designs |
| Analog and digital lock detect | Dual lock indication outputs - provides redundant verification of PLL convergence for safety-critical or high-reliability systems |
| Antibacklash pulse width control | Programmable via register - reduces reference spurs caused by PFD dead zone, improving spectral purity |
| Hardware/software power-down | CE pin control + F2 bit - enables rapid shutdown (1 µA sleep current) and controlled wake-up sequencing |
Applications
| GSM Base Station Transmitter LO | Wireless LAN Local Oscillator |
|---|---|
Use Scenario: Generating stable 900 MHz or 1800 MHz LO signals for upconversion in macrocell BTS power amplifiers. IC Role / Device Role / Timing Role: PLL frequency synthesizer providing precise, low-phase-noise carrier synthesis synchronized to 10 MHz network reference. Use Value: −91 dBc/Hz phase noise at 1 kHz offset ensures >65 dB ACLR in 3GPP-compliant transmitters; 550 MHz max RF input covers full GSM900/DCS1800 bands. | Use Scenario: Providing tunable LO for 2.4 GHz and 5 GHz WLAN transceivers in enterprise access points. IC Role / Device Role / Timing Role: Programmable integer-N synthesizer generating channel-selectable LO with fast lock time (<400 µs typical). Use Value: Dual-modulus prescaler and 24-bit N-divider allow 100 kHz channel spacing; 3-wire interface simplifies MCU integration in compact AP designs. |
| Communications Test Equipment | CATV Upconverter LO |
Use Scenario: Serving as agile LO source in vector signal analyzers and RF signal generators requiring wideband sweep and low spurs. IC Role / Device Role / Timing Role: High-resolution frequency synthesizer with programmable charge pump and lock detect for closed-loop calibration. Use Value: −97 dBc spurious performance at 200 kHz offsets meets stringent spectral mask requirements; VP supply enables consistent tuning voltage across temperature. | Use Scenario: Generating 550 MHz to 1.2 GHz LO for cable TV upstream/downstream upconverters in headend equipment. IC Role / Device Role / Timing Role: Low-noise integer-N PLL driving broadband VCOs in 75 Ω impedance-matched CATV signal paths. Use Value: 80–550 MHz RF input range directly supports DOCSIS 3.1 upstream band; TSSOP-16 footprint enables high-density PCB layout in multi-channel modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF PLL synthesizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADF4111BRUZ | Higher RF input range (0.08–1.2 GHz); identical pinout, interface, and register map | Supports PCS/CDMA/WCDMA bands beyond ADF4110BRUZ-RL's 550 MHz limit | Select when LO frequency exceeds 550 MHz; no PCB change required |
| LMX2485EVMX/NOPB | Wider RF range (300 MHz–3.8 GHz); integrated VCO; different 3-wire protocol and register structure | Enables single-chip PLL+VCO solutions but requires full firmware rework and layout revision | Choose for higher integration and broader frequency coverage where redesign is acceptable |
Compared with ADF4110BRUZ-RL, ADF4111BRUZ offers direct frequency scalability to 1.2 GHz with zero layout impact, while LMX2485EVMX/NOPB trades pin compatibility for monolithic integration-making it suitable only for greenfield designs targeting >1 GHz LO generation.
Availability
ADF4110BRUZ-RL is available at Aetrix Electronics and suitable for GSM base station transmitters, wireless LAN access points, and communications test equipment requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for ADF4110BRUZ-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, serving industrial, communications, and automotive markets with precision signal processing solutions.
The ADF4110 family was designed specifically for cost-sensitive, high-volume wireless infrastructure LO synthesis-emphasizing low phase noise, flexible prescaling, and robust 3-wire control in compact TSSOP packaging.
FAQ
What is the maximum RF input frequency supported by the ADF4110BRUZ-RL?
The ADF4110BRUZ-RL supports an RF input frequency range of 80 MHz to 550 MHz under 3 V operation, and 80 MHz to 550 MHz under 5 V operation. This makes it suitable for GSM900, DCS1800, and other sub-600 MHz wireless infrastructure applications. Operation below 80 MHz requires ensuring slew rate >30 V/µs to maintain proper prescaler functionality.
How does the RSET pin configure charge pump current in the ADF4110BRUZ-RL?
The RSET pin on the ADF4110BRUZ-RL sets maximum charge pump current (ICPmax) using the formula ICPmax = 5.23 / RSET (kΩ). With a 4.7 kΩ resistor to CPGND, ICPmax = 5 mA; with 10 kΩ, it drops to 523 µA. The nominal RSET voltage is 0.56 V, and the recommended RSET range is 2.7–10 kΩ per the datasheet.
Does the ADF4110BRUZ-RL support both analog and digital lock detection?
Yes, the ADF4110BRUZ-RL provides both analog and digital lock detect outputs. The LOCK pin delivers a CMOS-level digital signal indicating PLL lock status, while the MUXOUT pin can be configured to output an analog lock detect signal. Both are independently usable and improve system reliability through redundant lock verification.
What package type and thermal characteristics apply to the ADF4110BRUZ-RL?
The ADF4110BRUZ-RL uses a 16-lead TSSOP package with exposed paddle (EPAD), rated for θJA = 150.4°C/W. The EPAD must be soldered to AGND for optimal thermal performance and noise immunity. This package supports reflow soldering per JEDEC J-STD-020 and is RoHS-compliant and lead-free.
Can the ADF4110BRUZ-RL operate with separate analog and digital supplies?
No-the ADF4110BRUZ-RL requires AVDD = DVDD (2.7 V to 5.5 V), though it does provide a separate VP supply (AVDD ≤ VP ≤ 6.0 V) for the charge pump. AVDD and DVDD must be tied together and decoupled separately to AGND and DGND respectively; splitting them violates absolute maximum ratings and risks functional failure.
ADF4110BRUZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- 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:
- 16-TSSOP
ADF4110BRUZ-RL FAQ
1.How can I place an order for ADF4110BRUZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADF4110BRUZ-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 ADF4110BRUZ-RL reliable?
The price and inventory of ADF4110BRUZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADF4110BRUZ-RL is usually 5 days.
3.What payment methods are accepted for ADF4110BRUZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADF4110BRUZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADF4110BRUZ-RL?
ADF4110BRUZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADF4110BRUZ-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 ADF4110BRUZ-RL?
For technical support, including ADF4110BRUZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADF4110BRUZ-RL requirements.
6.How does Aetrix verify that ADF4110BRUZ-RL is sourced from the original manufacturer or authorized distributors?
All ADF4110BRUZ-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 ADF4110BRUZ-RL meets industry standards.
7.What is the process for return or replacement of ADF4110BRUZ-RL?
All ADF4110BRUZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADF4110BRUZ-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 ADF4110BRUZ-RL part is unused and in its original packaging.
Return procedure for ADF4110BRUZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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