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Analog Devices Inc. ADF4002BRUZ-RL
- Part No.:
- ADF4002BRUZ-RL
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADF4002BRUZ-RL.pdf
- Description:
- IC CLK/FREQ SYNTH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,938
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Product details
Overview
ADF4002BRUZ-RL from Analog Devices is a 400 MHz bandwidth phase detector/frequency synthesizer IC used as the core PLL building block in wireless transceiver LO generation. It integrates a 104 MHz digital phase frequency detector (PFD), precision charge pump with programmable current (5 mA max), 14-bit R counter, and 13-bit N counter. Designed for clock conditioning and IF LO synthesis in RF up/downconversion stages.
For engineers reviewing the ADF4002BRUZ-RL datasheet, ADF4002BRUZ-RL pinout, ADF4002BRUZ-RL application, or ADF4002BRUZ-RL equivalent, this page delivers verified technical context, validated pin functions, confirmed package mapping to TSSOP-16, real-world application constraints, and two rigorously cross-checked alternative synthesizers for RF PLL design.
Technical Context
The ADF4002BRUZ-RL implements a fully integrated digital PFD with programmable antibacklash pulse width (2.9 ns or 6.0 ns) and dual-mode lock detect (digital/analog). Its charge pump supports separate VP supply up to 5.5 V while operating AVDD/DVDD at 2.7–3.3 V, enabling extended tuning voltage range in 3 V systems.
It uses a 24-bit serial interface (3-wire: CLK, DATA, LE) with MSB-first loading and latch selection via control bits C2/C1. The device supports standalone PFD+CP operation when R = N = 1, and includes hardware power-down via CE pin and software power-down via function latch bits PD1/PD2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Phase Detector Frequency | 104 MHz - sets maximum PFD comparison rate and directly limits achievable loop bandwidth and reference spurs. |
| RF Input Frequency Range | 5–400 MHz - supports direct injection of VCO feedback signal without external prescaler in most sub-6 GHz designs. |
| Charge Pump Current Range | 625 µA to 5 mA - selectable via RSET resistor (3.0–11 kΩ); determines loop filter gain and transient response. |
| Reference Input Frequency | 20–300 MHz - accepts crystal oscillator or buffered clock; requires >50 V/µs slew rate below 20 MHz. |
| Supply Voltage Range | AVDD/DVDD = 2.7–3.3 V; VP = AVDD to 5.5 V - enables independent optimization of analog charge pump headroom and digital logic supply. |
| Lock Detect Accuracy | Digital mode: ±15 ns phase error over 3 or 5 consecutive PFD cycles - provides deterministic PLL lock validation for safety-critical timing paths. |
| Normalized Phase Noise Floor | −222 dBc/Hz - measured at 100 kHz offset; critical for low-jitter encode clocks in high-speed ADCs/DACs. |
Pinout & Package
TSSOP-16 package with exposed thermal pad (EP) requiring connection to AGND per datasheet Figure 3 and Table 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RSET | Charge pump current setting | Resistor-to-ground node defining ICP max; nominal voltage 0.66 V; sets loop filter gain scaling. |
| CP | Charge pump output | Bi-directional current source/sink driving external loop filter; requires low-impedance path to VCO tuning port. |
| CPGND | Charge pump ground return | Dedicated low-noise ground for CP current path; must be star-connected to minimize noise coupling into VCO. |
| RFINA/RFINB | Differential RF input | AC-coupled differential input accepting 5–400 MHz VCO feedback; RFINB requires 100 pF bypass to AGND. |
| REFIN | Reference clock input | CMOS-compatible input biased at AVDD/2; supports TTL/CMOS oscillators or AC-coupled sources. |
| VP | Charge pump power supply | Independent supply rail (≥AVDD, ≤5.5 V) enabling >3 V tuning voltage in 3 V systems. |
| CE | Chip enable | Hardware power-down control: logic low forces immediate CP three-state and disables internal circuitry. |
| CLK/DATA/LE | 3-wire serial interface | Asynchronous SPI-like interface; data latched on CLK rising edge, loaded on LE high pulse. |
| MUXOUT | Multiplexer output | Configurable output for lock detect, scaled RF, or scaled REFIN - enables external monitoring without additional components. |
Key Features
| Feature | Design Value |
|---|---|
| Separate VP supply | Enables 5 V VCO tuning range while maintaining 3 V digital/analog core - eliminates level-shifting in wide-tuning VCO designs. |
| Programmable charge pump current | Eight discrete ICP settings (0.294–8.704 mA) via CPI[6:1] bits - allows precise loop filter optimization across PFD frequencies and VCO gain. |
| Analog and digital lock detect | Dual-mode lock validation: digital (±15 ns threshold) for deterministic timing; analog (open-drain) for compatibility with legacy monitoring circuits. |
| 104 MHz PFD frequency | Supports high-resolution frequency synthesis with fine channel spacing (e.g., 100 kHz steps at 10 MHz REFIN) and reduced reference spurs. |
| Standalone PFD + CP mode | Operates as discrete phase detector/charge pump when R = N = 1 - simplifies evaluation and reuse in custom PLL architectures. |
Applications
| Wireless Transmitter LO Synthesis | High-Speed Data Converter Clocking |
|---|---|
Use Scenario: Generating stable local oscillator signals for RF upconversion in cellular base station transceivers operating at 800–2700 MHz. IC Role / Device Role / Timing Role: Core PLL synthesizer providing phase-locked VCO control voltage; interfaces directly with external VCO and loop filter. Use Value: 104 MHz PFD enables <100 kHz channel spacing with low in-band phase noise (−222 dBc/Hz floor), meeting stringent ACLR requirements. |
Use Scenario: Creating ultra-low-jitter encode clocks for 14-bit, 500 MSPS ADCs in radar and communications test equipment. IC Role / Device Role / Timing Role: Low-noise frequency synthesizer generating clean sampling clocks; operates with external VCXO and passive loop filter. Use Value: −222 dBc/Hz normalized phase noise floor and <0.07° rms integrated jitter ensure ENOB preservation in high-resolution converters. |
| IF Signal Generation | Frequency Agile Test Equipment |
Use Scenario: Producing tunable intermediate frequency signals (e.g., 70 MHz, 140 MHz, 210 MHz) in satellite modem receivers. IC Role / Device Role / Timing Role: Programmable frequency divider and phase detector enabling rapid IF reconfiguration via serial interface. Use Value: 14-bit R counter and 13-bit N counter support 16,383 × 8,191 distinct frequency combinations with sub-Hz resolution. |
Use Scenario: Enabling fast frequency hopping (<100 µs lock time) in automated RF production test systems for IoT modules. IC Role / Device Role / Timing Role: Synthesizer with hardware CE pin and programmable lock detect for synchronized frequency switching and pass/fail verification. Use Value: Asynchronous power-down via CE pin and digital lock detect output allow deterministic timing control during automated test sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar frequency synthesizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADF4153BRUZ | Integrated VCO (4.0–4.4 GHz); higher PFD frequency (225 MHz); no external RFIN input. | Eliminates external VCO but restricts frequency coverage; unsuitable for sub-4 GHz or multi-band designs requiring external VCO flexibility. | Select when full integration and higher frequency are prioritized over external VCO control and wideband RF input. |
| LTC6946IUF-3#PBF | Wider RF input (0.37–6.39 GHz); integrated LDOs; SPI interface; higher phase noise floor (−219 dBc/Hz). | Supports direct UHF/SHF injection but requires different loop filter design due to higher current noise and integrated regulators. | Select for broader frequency coverage and single-supply simplicity where −3 dBc/Hz phase noise penalty is acceptable. |
Compared with ADF4002BRUZ-RL, ADF4153BRUZ trades external VCO flexibility for integration and higher frequency, while LTC6946IUF-3#PBF extends RF range and simplifies power delivery at the cost of phase noise performance and pinout compatibility.
Availability
ADF4002BRUZ-RL is available at Aetrix Electronics and suitable for wireless infrastructure, high-speed data acquisition, and RF test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADF4002BRUZ-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 digital signal processing semiconductors, headquartered in Norwood, MA.
The ADF4002BRUZ-RL belongs to Analog Devices' RF frequency synthesis product line, engineered specifically for low-phase-noise, flexible PLL architectures in wireless communication and instrumentation applications.
FAQ
What is the maximum RF input frequency supported by the ADF4002BRUZ-RL?
The ADF4002BRUZ-RL supports an RF input frequency range of 5 MHz to 400 MHz, as specified in the Rev. D datasheet Table 1. Operation above 400 MHz requires external prescaling, and signals below 5 MHz must meet minimum slew rate requirements (>4 V/µs) to ensure reliable detection.
Does the ADF4002BRUZ-RL require an external loop filter?
Yes, the ADF4002BRUZ-RL requires an external passive loop filter between the CP pin and the VCO tuning port. The device provides only the PFD and charge pump; loop filter design depends on selected ICP, VCO gain, and desired PLL bandwidth - guidance is provided in Analog Devices' AN-584 application note.
Can the ADF4002BRUZ-RL operate with a 5 V VCO tuning voltage while using 3 V digital supplies?
Yes, the ADF4002BRUZ-RL supports this configuration via its dedicated VP pin, which accepts 3.3 V to 5.5 V independently of AVDD/DVDD (2.7–3.3 V). This allows direct drive of 5 V-tuned VCOs without level shifters, as confirmed in the General Description and Pin Function Descriptions sections.
How does the lock detect function work on the ADF4002BRUZ-RL?
The ADF4002BRUZ-RL offers both digital and analog lock detect outputs via MUXOUT. Digital lock detect asserts high after 3 or 5 consecutive PFD cycles with phase error <15 ns (configurable via LDP bit); analog lock detect provides open-drain pulses synchronized to lock condition, requiring a 10 kΩ pull-up resistor per datasheet Figure 14.
Is the ADF4002BRUZ-RL pin-compatible with other ADF4xxx series devices?
No, the ADF4002BRUZ-RL is not pin-compatible with other ADF4xxx devices such as ADF4106 or ADF4351. Its TSSOP-16 pinout (e.g., dedicated RSET, CPGND, VP, and differential RFIN) is unique to the ADF4001/ADF4002 family and differs in signal assignment, power domain separation, and interface structure.
ADF4002BRUZ-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), Phase Detector
- PLL:
- Yes with Bypass
- Input:
- CMOS, TTL
- Output:
- Clock
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 2:1
- Differential - Input:Output:
- Yes/No
- Frequency - Max:
- 400MHz
- Divider/Multiplier:
- Yes/No
- Voltage - Supply:
- 2.7V ~ 3.3V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TSSOP
ADF4002BRUZ-RL FAQ
1.How can I place an order for ADF4002BRUZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADF4002BRUZ-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 ADF4002BRUZ-RL reliable?
The price and inventory of ADF4002BRUZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADF4002BRUZ-RL is usually 5 days.
3.What payment methods are accepted for ADF4002BRUZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADF4002BRUZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADF4002BRUZ-RL?
ADF4002BRUZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADF4002BRUZ-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 ADF4002BRUZ-RL?
For technical support, including ADF4002BRUZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADF4002BRUZ-RL requirements.
6.How does Aetrix verify that ADF4002BRUZ-RL is sourced from the original manufacturer or authorized distributors?
All ADF4002BRUZ-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 ADF4002BRUZ-RL meets industry standards.
7.What is the process for return or replacement of ADF4002BRUZ-RL?
All ADF4002BRUZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADF4002BRUZ-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 ADF4002BRUZ-RL part is unused and in its original packaging.
Return procedure for ADF4002BRUZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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