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Analog Devices Inc. ADF4350ABCPZ-RL7
- Part No.:
- ADF4350ABCPZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Package:
- -
- Datasheet:
-
ADF4350ABCPZ-RL7.pdf
- Description:
- IC SYNTH PLL VCO FN/IN 32LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:5,088
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Product details
Overview
ADF4350ABCPZ-RL7 from Analog Devices is a wideband fractional-N/integer-N PLL frequency synthesizer with integrated VCO, operating from 137.5 MHz to 4400 MHz RF output. It features programmable divide-by-1/2/4/8/16 outputs, typical rms jitter <0.4 ps, 3.0–3.6 V supply, and 3-wire serial interface - used in wireless infrastructure base stations for agile local oscillator generation.
For engineers reviewing the ADF4350ABCPZ-RL7 datasheet, ADF4350ABCPZ-RL7 pinout, ADF4350ABCPZ-RL7 application, or ADF4350ABCPZ-RL7 equivalent, key selection criteria include VCO tuning voltage range (0.5–2.5 V), phase noise performance (−134 dBc/Hz at 1 MHz offset from 3.3 GHz), dual-modulus prescaler (4/5 or 8/9), lock detect functionality, and RF output mute control via pin or software.
Technical Context
The ADF4350ABCPZ-RL7 implements a third-order fractional interpolator with INT/FRAC/MOD registers enabling sub-Hz frequency resolution. Its VCO core uses three segmented banks of 16 overlapping bands for automatic band selection across 2.2–4.4 GHz fundamental range, minimizing KV drift and spurious content.
It integrates dual RF output stages (RFOUTA± and RFOUTB±), each with independent programmable power level (−4 to +5 dBm in 3 dB steps) and software/pin-controllable mute (PDBRF). The charge pump supports ICP from 0.312 mA to 5 mA via RSET (2.7–10 kΩ), with matching ≤2% and voltage compliance up to 2.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency Range | 137.5 MHz to 4400 MHz - covers W-CDMA, WiMAX, GSM, and CATV bands without external multipliers |
| VCO Fundamental Range | 2200 MHz to 4400 MHz - enables direct synthesis up to 4.4 GHz; lower frequencies achieved via on-chip ÷1/2/4/8/16 dividers |
| Phase Noise (1 MHz offset) | −134 dBc/Hz @ 3.3 GHz - meets stringent spectral purity requirements for high-order QAM modulation |
| RMS Jitter | <0.4 ps rms - ensures low timing uncertainty in clock generation and high-speed data converters |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3 V digital/analog rails; AVDD = DVDD = VVCO required |
| Interface | 3-wire serial (CLK/DATA/LE) - supports SPI-compatible programming with 32-bit register map and double-buffered updates |
| Lock Detect | Analog and digital outputs (LD pin + MUXOUT selectable) - enables real-time PLL status monitoring in closed-loop systems |
Pinout & Package
LFCSP package (32-lead, 5 mm × 5 mm, exposed paddle), RoHS-compliant, thermal θJA = 27.3°C/W (paddle-soldered).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK, DATA, LE | Serial interface control | CMOS inputs accepting 1.8 V logic; timing-critical (t1 ≥20 ns setup, t4/t5 ≥25 ns pulse width) |
| RFOUTA+/RFOUTA− | Main differential RF output | Fundamental or divided VCO signal; programmable −4 to +5 dBm; 50 Ω matched |
| RFOUTB+/RFOUTB− | Auxiliary differential RF output | Independent output stage; can be powered down when unused to reduce current (21–26 mA active) |
| VTUNE | VCO tuning voltage input | 0.5–2.5 V range; connects to external loop filter output; determines instantaneous VCO frequency |
| RSET | Charge pump current setting | Resistor-to-ground sets ICP (ICP = 25.5/RSET); nominal 5.1 kΩ yields 5 mA sink/source |
| PDBRF | RF output mute control | Active-low hardware mute; functionally redundant with software register control for fail-safe operation |
| LD | Digital lock detect output | CMOS-level logic high indicates stable PLL lock; used for system synchronization and fault recovery |
| MUXOUT | Multiplexed diagnostic output | Selectable between lock detect, scaled RF, or scaled reference - simplifies test and debug without external probes |
Key Features
| Feature | Design Value |
|---|---|
| Integrated wideband VCO | Eliminates external VCO design, calibration, and layout complexity across 2.2–4.4 GHz |
| Programmable output divider | ÷1/2/4/8/16 enables single-device coverage from 137.5 MHz to 4400 MHz without external dividers |
| Switched bandwidth fast-lock mode | Reduces frequency settling time by dynamically adjusting loop bandwidth during acquisition |
| Cycle slip reduction | Minimizes phase discontinuities during large frequency jumps - critical for TDD and burst-mode systems |
| Dual RF output stages | Supports simultaneous LO generation for I/Q modulators or diversity receivers with independent power control |
Applications
| Wireless Infrastructure Base Station | Test & Measurement Signal Generator |
|---|---|
Use Scenario: Generating agile local oscillator signals for multiband macrocell BTS supporting W-CDMA, LTE, and 5G NR FR1. IC Role / Device Role / Timing Role: Core PLL synthesizer providing low-phase-noise, fast-hopping LO with sub-200 kHz channel spacing. Use Value: Enables single-chip LO synthesis across 700 MHz–3.8 GHz bands using internal dividers, reducing BOM count and board area vs. discrete solutions. | Use Scenario: Programmable RF source in benchtop signal generators requiring wide frequency coverage and fine resolution. IC Role / Device Role / Timing Role: High-stability frequency synthesizer delivering calibrated output with <0.4 ps rms jitter for ADC/DAC characterization. Use Value: Achieves −134 dBc/Hz phase noise at 1 MHz offset (3.3 GHz), meeting spectral purity specs for ENOB validation of 16-bit converters. |
| Wi-Fi 6/6E Access Point | CATV Headend Equipment |
Use Scenario: Dual-band (2.4/5/6 GHz) LO generation in enterprise APs supporting OFDMA and MU-MIMO. IC Role / Device Role / Timing Role: Fractional-N synthesizer generating clean, low-spur clocks for RF transceivers with dynamic frequency agility. Use Value: Low spur modes suppress fractional spurs below −70 dBc, preventing in-band interference in dense multi-AP deployments. | Use Scenario: Channelized RF synthesis in cable modem termination systems (CMTS) and edge QAM modulators. IC Role / Device Role / Timing Role: Integer-N and fractional-N synthesizer producing stable carriers from 54 MHz to 1.218 GHz for DOCSIS 3.1/4.0 upstream/downstream paths. Use Value: Integrated VCO eliminates external tuning varactors and reduces temperature drift sensitivity (<1 MHz/V pushing), improving long-term carrier stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar frequency synthesizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADF4351BCPZ-RL7 | Same architecture but includes integrated LDO regulator; eliminates need for external 3.3 V supply rail | Better suited for space-constrained designs where power rail consolidation is critical | Choose ADF4351BCPZ-RL7 if board area or supply count must be minimized; otherwise ADF4350ABCPZ-RL7 offers identical RF performance at lower cost |
| HMC830LP6GE | Wider output range (25 MHz–14 GHz), higher PFD max frequency (150 MHz), no integrated VCO (external required) | Used where ultra-wideband coverage or higher reference frequency tolerance is needed | Select HMC830LP6GE only when >4.4 GHz output or >100 MHz PFD operation is mandatory; adds VCO design overhead and layout sensitivity |
Compared with ADF4350ABCPZ-RL7, ADF4351BCPZ-RL7 reduces system-level power delivery complexity via on-chip LDO, while HMC830LP6GE trades integration for extended frequency reach and higher PFD flexibility - neither offers drop-in replacement capability due to differing pinouts, power schemes, and VCO architecture.
Availability
ADF4350ABCPZ-RL7 is available at Aetrix Electronics and suitable for wireless infrastructure, test equipment, and broadband communications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADF4350ABCPZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and DSP ICs, headquartered in Norwood, MA, serving precision instrumentation, communications, and industrial markets.
The ADF4350ABCPZ-RL7 belongs to Analog Devices' RF & Microwave Synthesizer product line, designed specifically for high-frequency, low-phase-noise LO generation in infrastructure-grade wireless systems.
FAQ
What is the minimum operating temperature for the ADF4350ABCPZ-RL7?
The ADF4350ABCPZ-RL7 has an operating temperature range of −40°C to +85°C, validated per its Rev. B datasheet specifications. This industrial-grade rating ensures reliable operation in outdoor base station enclosures and thermally demanding test equipment environments. All key parameters - including phase noise, output power, and lock detect functionality - are guaranteed across this full range.
Does the ADF4350ABCPZ-RL7 require an external loop filter?
Yes, the ADF4350ABCPZ-RL7 requires an external passive loop filter connected between CPOUT and VTUNE. The filter design determines PLL stability, lock time, and spurious performance. Analog Devices provides ADIsimPLL simulation tools and reference designs (e.g., EVAL-ADF4350EB1Z) to optimize filter component values for specific loop bandwidth and phase margin targets.
Can the ADF4350ABCPZ-RL7 generate frequencies below 137.5 MHz?
No - the ADF4350ABCPZ-RL7's lowest guaranteed RF output is 137.5 MHz, achieved when the 2200 MHz fundamental VCO output is divided by 16. Frequencies below this require external division or a different synthesizer architecture. The device does not support subharmonic or harmonic generation modes that would extend coverage downward.
How is RF output power controlled on the ADF4350ABCPZ-RL7?
RF output power on the ADF4350ABCPZ-RL7 is controlled digitally via register bits in Register 4 (R4), allowing selection from −4 dBm to +5 dBm in 3 dB increments for both RFOUTA and RFOUTB. Power level is independent of frequency and remains stable across temperature; variation is specified as ±1 dB over full operating conditions.
Is the ADF4350ABCPZ-RL7 pin-compatible with earlier ADF4350 variants like ADF4350BCPZ?
Yes - the ADF4350ABCPZ-RL7 shares identical pinout, package (32-lead LFCSP), and electrical specifications with ADF4350BCPZ and ADF4350ACPZ. The "A" grade denotes enhanced AC performance (e.g., tighter phase noise and jitter specs), but mechanical and interface compatibility is maintained for drop-in replacement in existing designs.
ADF4350ABCPZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- PLL, Divider (RF)
- PLL:
- -
- Input:
- CMOS
- Output:
- -
- Number of Circuits:
- -
- Ratio - Input:Output:
- -
- Differential - Input:Output:
- -
- Frequency - Max:
- 4.4GHz
- Divider/Multiplier:
- -
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
ADF4350ABCPZ-RL7 FAQ
1.How can I place an order for ADF4350ABCPZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADF4350ABCPZ-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 ADF4350ABCPZ-RL7 reliable?
The price and inventory of ADF4350ABCPZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADF4350ABCPZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADF4350ABCPZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADF4350ABCPZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADF4350ABCPZ-RL7?
ADF4350ABCPZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADF4350ABCPZ-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 ADF4350ABCPZ-RL7?
For technical support, including ADF4350ABCPZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADF4350ABCPZ-RL7 requirements.
6.How does Aetrix verify that ADF4350ABCPZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADF4350ABCPZ-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 ADF4350ABCPZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADF4350ABCPZ-RL7?
All ADF4350ABCPZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADF4350ABCPZ-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 ADF4350ABCPZ-RL7 part is unused and in its original packaging.
Return procedure for ADF4350ABCPZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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