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Analog Devices Inc. ADF4154BRUZ-RL7
- Part No.:
- ADF4154BRUZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADF4154BRUZ-RL7.pdf
- Description:
- IC FRACT N SYNTH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,450
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Product details
Overview
ADF4154BRUZ-RL7 from Analog Devices is a fractional-N frequency synthesizer IC used as a local oscillator in RF up/down-conversion stages of wireless transceivers. It supports RF input up to 4 GHz, operates from 2.7 V to 3.3 V, features programmable charge pump currents (312.5 µA to 5 mA), and implements fast-lock mode with built-in timer for base station and handset PLL designs.
For engineers reviewing the ADF4154BRUZ-RL7 datasheet, ADF4154BRUZ-RL7 pinout, ADF4154BRUZ-RL7 application, or ADF4154BRUZ-RL7 equivalent, key selection criteria include its 4 GHz RF bandwidth, Σ-Δ fractional interpolation, dual-modulus prescaler (4/5 or 8/9), 3-wire serial interface, and digital lock detect - all critical for WiMAX, W-CDMA, and PMR system timing synthesis.
Technical Context
The ADF4154BRUZ-RL7 integrates a low-noise phase frequency detector (PFD), precision charge pump, and third-order Σ-Δ fractional interpolator to enable fine frequency resolution with N = INT + FRAC/MOD. Its R-counter (4-bit, 1–15) and N-divider (9-bit, 31–511) allow flexible reference and feedback division.
It supports two prescaler modes (4/5 and 8/9), programmable modulus (2–4095), and fast-lock mode with user-defined countdown timer - eliminating external timing control. The VP pin enables extended tuning voltage (up to 5.5 V), decoupling VCO range from core supply constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Input Frequency | 0.5 GHz to 4.0 GHz - supports direct VCO feedback in cellular, WiMAX, and CATV bands. |
| PFD Frequency Max | 32 MHz - sets maximum reference comparison rate for loop stability and settling time. |
| Charge Pump Current | 312.5 µA to 5 mA (programmable via RSET) - enables optimization of loop filter gain and phase noise vs. spurs trade-off. |
| Fractional Modulus Range | 2 to 4095 - determines minimum frequency step size and fractional spur suppression capability. |
| Phase Noise Floor | −220 dBc/Hz typ - normalized synthesizer noise floor at 100 kHz offset, critical for adjacent channel rejection. |
| Digital Lock Detect | Integrated analog/digital lock output - provides reliable PLL status without external monitoring circuitry. |
| Supply Voltage | 2.7 V to 3.3 V (AVDD/DVDD/SDVDD) - compatible with standard 3 V logic and mixed-signal systems. |
Pinout & Package
TSSOP-16 package (RoHS-compliant, lead-free, moisture sensitivity level 3). Exposed pad must be connected to AGND for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RSET | Charge pump current setting | Resistor-to-ground defines ICP max; 5.1 kΩ yields 5 mA sink/source. |
| CP | Charge pump output | Drives external loop filter; requires low-impedance path to VCO tuning port. |
| CPGND | Charge pump ground return | Separate analog ground path minimizes noise coupling into CP node. |
| RFINA/RFINB | Differential RF input | Accepts ac-coupled VCO signal; 100 pF bypass recommended on RFINB. |
| REFIN | Reference clock input | CMOS-compatible, 10–250 MHz; internal 100 kΩ termination simplifies drive. |
| CLK/DATA/LE | 3-wire serial interface | MSB-first 24-bit load; LE edge triggers register latch selection via C1/C2 bits. |
| MUXOUT | Programmable multiplexer output | Selects RF lock detect, scaled RF, or scaled reference for debug or monitoring. |
| VP | Charge pump power supply | Independent rail (AVDD to 5.5 V) extends VCO tuning range beyond core supply. |
Key Features
| Feature | Design Value |
|---|---|
| Fast-lock mode with built-in timer | User-programmable countdown enables fixed wide-bandwidth lock period without external timing logic. |
| Programmable dual-modulus prescaler | Selectable 4/5 or 8/9 division allows optimal PFD frequency vs. RF range trade-off. |
| Σ-Δ fractional-N interpolation | Third-order modulator reduces fractional spurs and enables sub-Hz frequency resolution. |
| Separate VP supply | Decouples VCO tuning voltage headroom (up to 5.5 V) from 3.3 V core logic, supporting wide-range VCOs. |
| Pin compatibility | Hardware-compatible with ADF4110/4111/4112/4113, ADF4106, and ADF4153 - simplifies upgrade paths. |
Applications
| Wireless Base Stations | Mobile Handsets |
|---|---|
Use Scenario: Local oscillator generation in macrocell and supercell 3G/W-CDMA base stations requiring rapid channel switching and low phase noise. IC Role / Device Role / Timing Role: Fractional-N synthesizer providing programmable LO signals for up/down-conversion with fast-lock capability. Use Value: Fast-lock mode reduces channel acquisition time; −102 dBc/Hz @ 1 kHz offset ensures high adjacent-channel power ratio (ACPR). |
Use Scenario: Compact LO synthesis in dual-mode PMR/GSM handsets where board space and power are constrained. IC Role / Device Role / Timing Role: Low-voltage (2.7–3.3 V) RF synthesizer driving VCO in integrated transceiver front-end. Use Value: 1 µA sleep current extends battery life; TSSOP-16 footprint enables high-density RF layout. |
| CATV Infrastructure | Wireless Test Equipment |
Use Scenario: Frequency agile signal source in headend modulators and QAM upconverters requiring stable, low-spur outputs. IC Role / Device Role / Timing Role: Programmable reference divider and fractional-N N-divider generating precise channel spacing (e.g., 6 MHz). Use Value: 12-bit programmable modulus and spurious optimization registers enable compliance with DOCSIS spectral mask requirements. |
Use Scenario: Agile LO in vector signal analyzers and RF synthesizers needing rapid re-tuning and repeatable phase accuracy. IC Role / Device Role / Timing Role: High-resolution frequency synthesizer with digital lock detect for automated calibration sequences. Use Value: Integrated lock detect eliminates external comparators; ADIsimPLL™-compatible design accelerates loop filter validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fractional-N synthesizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADF4153BRUZ | Lacks fast-lock timer and has reduced RF bandwidth (3.5 GHz vs. 4.0 GHz); identical pinout and register map. | Suitable for cost-sensitive 3G/LTE infrastructure where lock time < 100 µs is not required. | Select ADF4153BRUZ only if fast-lock mode is unnecessary and RF input stays ≤3.5 GHz. |
| LMX2531LQ1725E/NOPB | Integrated VCO (1.725 GHz), lower max PFD frequency (26 MHz), no VP pin; different pinout and interface protocol. | Better for compact, single-chip LO solutions in portable test gear; not drop-in replaceable. | Choose LMX2531LQ1725E/NOPB when VCO integration and smaller BOM outweigh need for external VCO flexibility. |
Compared with ADF4154BRUZ-RL7, the ADF4153BRUZ offers identical control architecture but sacrifices fast-lock and 4 GHz support, while the LMX2531LQ1725E/NOPB trades external VCO flexibility for integration - making ADF4154BRUZ-RL7 optimal for high-performance, externally tuned RF systems demanding speed and bandwidth.
Availability
ADF4154BRUZ-RL7 is available at Aetrix Electronics and suitable for wireless base stations, mobile handsets, and CATV equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for ADF4154BRUZ-RL7 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 is a global leader in high-performance analog, mixed-signal, and RF ICs, serving communications, industrial, and automotive markets with precision timing and signal processing solutions.
The ADF4154BRUZ-RL7 belongs to Analog Devices' ADF4xxx fractional-N PLL synthesizer product line, designed specifically for low-phase-noise, fast-settling LO generation in wireless infrastructure and handheld RF systems.
FAQ
What is the maximum RF input frequency supported by the ADF4154BRUZ-RL7?
The ADF4154BRUZ-RL7 supports an RF input frequency range of 0.5 GHz to 4.0 GHz, verified per datasheet Table 1 under B-version specifications. This enables direct interfacing with VCOs operating across GSM, W-CDMA, WiMAX, and PMR bands without external prescaling.
Does the ADF4154BRUZ-RL7 include an integrated VCO?
No, the ADF4154BRUZ-RL7 does not include an integrated VCO. It is a fractional-N PLL synthesizer IC that requires an external voltage-controlled oscillator; the CP pin drives the VCO tuning port through an external loop filter.
How is charge pump current programmed on the ADF4154BRUZ-RL7?
Charge pump current on the ADF4154BRUZ-RL7 is set by connecting an external resistor (RSET) between the RSET pin and AGND. With RSET = 5.1 kΩ, ICP is 5 mA; values from 2.7 kΩ to 10 kΩ yield 312.5 µA to 5 mA, as defined in Table 1 and Pin Function Descriptions.
What package type is used for the ADF4154BRUZ-RL7?
The ADF4154BRUZ-RL7 uses a 16-lead TSSOP package (JEDEC MO-153), with exposed pad connected to AGND. This is confirmed in the "Ordering Guide" and "Outline Dimensions" sections of Rev. C datasheet, and matches the pin configuration shown in Figure 3.
Is the ADF4154BRUZ-RL7 pin-compatible with other ADF4xxx devices?
Yes, the ADF4154BRUZ-RL7 is explicitly pin-compatible with ADF4110/4111/4112/4113, ADF4106, and ADF4153 per datasheet Features section - enabling hardware reuse and migration within Analog Devices' PLL synthesizer family without PCB changes.
ADF4154BRUZ-RL7 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:
- Fractional N 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:
- 4GHz
- Divider/Multiplier:
- No/Yes
- Voltage - Supply:
- 2.7V ~ 3.3V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TSSOP
ADF4154BRUZ-RL7 FAQ
1.How can I place an order for ADF4154BRUZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADF4154BRUZ-RL7 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 ADF4154BRUZ-RL7 reliable?
The price and inventory of ADF4154BRUZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADF4154BRUZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADF4154BRUZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADF4154BRUZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADF4154BRUZ-RL7?
ADF4154BRUZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADF4154BRUZ-RL7 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 ADF4154BRUZ-RL7?
For technical support, including ADF4154BRUZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADF4154BRUZ-RL7 requirements.
6.How does Aetrix verify that ADF4154BRUZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADF4154BRUZ-RL7 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 ADF4154BRUZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADF4154BRUZ-RL7?
All ADF4154BRUZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADF4154BRUZ-RL7, 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 ADF4154BRUZ-RL7 part is unused and in its original packaging.
Return procedure for ADF4154BRUZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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