Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Clock/Timing > Clock Generators, PLLs, Frequency Synthesizers

Analog Devices Inc. ADF4212LBRUZ-RL

Name: ADF4212LBRUZ-RL
Brand: Analog Devices Inc.
SKU: ADF4212LBRUZ-RL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: ADF4212LBRUZ-RL

Manufacturer:: Analog Devices Inc.

Category:: Clock Generators, PLLs, Frequency Synthesizers

Package:: 20-TSSOP (0.173", 4.40mm Width)

Datasheet:: ADF4212LBRUZ-RL.pdf

Description:: IC CLK/FREQ SYNTH 20TSSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,280

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

ADF4212LBRUZ-RL from Analog Devices is a dual low-power PLL frequency synthesizer designed for local oscillator (LO) generation in RF and IF signal paths of wireless transceivers. It supports RF input up to 2.4 GHz and IF input up to 1.0 GHz, operates from 2.7 V to 3.3 V, delivers total supply current of 7.5 mA, and features programmable dual-modulus prescalers (8/9, 16/17, 32/33, 64/65) for flexible N-divider synthesis - enabling precise LO generation in GSM, WCDMA, and CATV tuner applications.

For engineers reviewing the ADF4212LBRUZ-RL datasheet, ADF4212LBRUZ-RL pinout, ADF4212LBRUZ-RL application, or ADF4212LBRUZ-RL equivalent, this page provides verified technical context, validated pin functions, confirmed RF/IF bandwidth limits, charge pump current programming behavior, lock detect implementation modes, and real-world use cases in wireless handset and base station LO subsystems.

Technical Context

The ADF4212LBRUZ-RL integrates two independent PLL channels - one for RF (up to 2.4 GHz) and one for IF (up to 1.0 GHz) - each with its own phase-frequency detector (PFD), charge pump (CPRF/CPIF), R/A/B counters, and dual-modulus prescaler. Both channels share a 3-wire serial interface and support fastlock mode, analog/digital lock detect, and separate VP1/VP2 tuning voltage supplies up to 5.5 V.

It implements N = BP + A division using 12-bit B and 6-bit A counters per channel, with a 15-bit programmable reference divider (R counter). The PFD operates up to 75 MHz, and charge pump currents are set via external RSET resistor (1.5 kΩ to 5.6 kΩ), yielding programmable ICP from 625 µA to 5 mA per channel.

Key Specifications

Parameter	Value and Actual Design Meaning
RF Input Frequency	0.2 GHz to 2.4 GHz - supports direct connection to VCO outputs in cellular band front-ends (e.g., 900 MHz, 1750 MHz, 2400 MHz)
IF Input Frequency	100 MHz to 1000 MHz - enables IF-stage LO synthesis for downconversion in multi-band receivers
Total Supply Current	7.5 mA typical at 3 V - enables low-power operation in battery-sensitive wireless handsets
Charge Pump Current Range	625 µA to 5 mA - set by RSET resistor; determines loop filter gain and PLL settling time
PFD Max Frequency	75 MHz - defines maximum reference frequency before division; constrains minimum PFD period and reference spur spacing
Dual-Modulus Prescaler Options	8/9, 16/17, 32/33, 64/65 - selects prescaler modulus to ensure prescaler output ≤ 188 MHz for reliable CMOS counter operation
Operating Voltage Range	2.7 V to 3.3 V for VDD1/VDD2; VP1/VP2 up to 5.5 V - allows independent high-voltage tuning for wide-range VCOs

Pinout & Package

ADF4212LBRUZ-RL is packaged in a 20-lead TSSOP (RU-20) with exposed thermal pad. Pin functions are electrically identical to the LFCSP variant but mapped to different physical locations. All ground pins (AGNDRF, DGNDRF, AGNDIF, DGNDIF) must be individually decoupled and connected to low-impedance ground planes.

Pin/Terminal	Circuit Role	Design Meaning
REFIN (Pin 8 TSSOP)	Reference clock input	CMOS-compatible input (10–150 MHz); accepts TTL/CMOS oscillators or AC-coupled crystal sources; internal 100 kΩ termination
RFIN (Pin 5 TSSOP)	RF VCO feedback input	AC-coupled small-signal input (0.2–2.4 GHz); requires ≥140 V/µs slew rate for reliable detection
IFIN (Pin 16 TSSOP)	IF VCO feedback input	AC-coupled small-signal input (100–1000 MHz); same sensitivity and coupling requirements as RFIN
CPRF (Pin 3 TSSOP)	RF charge pump output	Drives external RF loop filter; current magnitude set by RSET; VP1 ≥ VDD1 required for full 5 mA range
CPIF (Pin 18 TSSOP)	IF charge pump output	Drives external IF loop filter; independently programmable; VP2 ≥ VDD2 required for full 5 mA range
MUXOUT (Pin 10 TSSOP)	Multiplexed diagnostic output	Selectable between RF/IF lock detect, scaled RF/IF frequencies, or reference output - used for debug and system monitoring
CLK/DATA/LE (Pins 11/12/13 TSSOP)	3-wire serial interface	24-bit shift register control; LE latches data into RF/IF R/A/B registers; 1.8 V logic compatible
RSET (Pin 14 TSSOP)	Charge pump current calibration	Resistor-to-ground sets max ICP for both RF and IF charge pumps; nominal voltage = 0.66 V; ICP = 13.5 / RSET (kΩ) mA

Key Features

Feature	Design Value
Dual independent PLL channels	Enables simultaneous RF and IF LO synthesis without external multiplexing or timing coordination
Separate VP1/VP2 power supplies	Allows RF and IF VCOs with different tuning voltage ranges (e.g., 0–3.3 V and 0–5.5 V) to be driven from same IC
Programmable dual-modulus prescaler	Four selectable P/P+1 ratios (8/9 to 64/65) optimize division efficiency and minimize fractional spurs across wide frequency bands
Analog and digital lock detect	Digital lock detect asserts after three consecutive <15 ns phase errors; analog version provides open-drain status for microcontroller polling
Fastlock mode	Reduces PLL acquisition time by dynamically adjusting PFD gain during initial lock - critical for TDD systems and burst-mode operation
Low-power sleep mode	1 µA standby current enables rapid wake-up while preserving configuration registers - ideal for power-gated RF sections

Applications

Wireless Handset Receiver (GSM/WCDMA)	CATV Tuner Front-End
Use Scenario: Dual-conversion receiver in multi-band mobile phone supporting GSM 900/1800 and WCDMA 2100 bands. IC Role / Device Role / Timing Role: Generates RF LO (900 MHz or 2140 MHz) and IF LO (450 MHz or 140 MHz) simultaneously using independent PLL channels. Use Value: Eliminates need for two discrete synthesizers; reduces BOM count and PCB area while maintaining channel isolation and low reference spurs (<−90 dBc).	Use Scenario: Channel selection in broadband cable TV tuners requiring agile LO switching across 50–1000 MHz IF range. IC Role / Device Role / Timing Role: Provides stable, low-phase-noise IF LO (e.g., 440 MHz or 540 MHz) with fast lock (<100 µs in Fastlock mode) for QAM demodulation. Use Value: Achieves −89 dBc/Hz @ 1 kHz offset (at 540 MHz) and −90 dB reference spurs - meets DOCSIS 3.1 spectral purity requirements.
Wireless Base Station Transmitter	Communications Test Equipment
Use Scenario: Upconversion LO generation in macrocell BTS supporting multiple carriers across 700–2700 MHz. IC Role / Device Role / Timing Role: Synthesizes high-frequency RF LO (e.g., 1750 MHz or 2400 MHz) with extended tuning voltage (VP1 = 5.5 V) for wide-VCO-range coverage. Use Value: Delivers −84 dBc/Hz @ 1 kHz offset (2400 MHz) and supports >200 kHz PFD frequency - enables tight loop bandwidths for low jitter and fast carrier switching.	Use Scenario: Signal source module in benchtop spectrum analyzers and vector signal generators requiring multi-frequency agility. IC Role / Device Role / Timing Role: Serves as programmable LO engine for RF front-end calibration and stimulus generation with dual-channel coherence. Use Value: Enables synchronized RF/IF sweep via shared reference and independent N-divider programming - simplifies firmware control of multi-tone test signals.

Wireless Handset Receiver (GSM/WCDMA)

CATV Tuner Front-End

Use Scenario: Dual-conversion receiver in multi-band mobile phone supporting GSM 900/1800 and WCDMA 2100 bands.

IC Role / Device Role / Timing Role: Generates RF LO (900 MHz or 2140 MHz) and IF LO (450 MHz or 140 MHz) simultaneously using independent PLL channels.

Use Value: Eliminates need for two discrete synthesizers; reduces BOM count and PCB area while maintaining channel isolation and low reference spurs (<−90 dBc).

Use Scenario: Channel selection in broadband cable TV tuners requiring agile LO switching across 50–1000 MHz IF range.

IC Role / Device Role / Timing Role: Provides stable, low-phase-noise IF LO (e.g., 440 MHz or 540 MHz) with fast lock (<100 µs in Fastlock mode) for QAM demodulation.

Use Value: Achieves −89 dBc/Hz @ 1 kHz offset (at 540 MHz) and −90 dB reference spurs - meets DOCSIS 3.1 spectral purity requirements.

Wireless Base Station Transmitter

Communications Test Equipment

Use Scenario: Upconversion LO generation in macrocell BTS supporting multiple carriers across 700–2700 MHz.

IC Role / Device Role / Timing Role: Synthesizes high-frequency RF LO (e.g., 1750 MHz or 2400 MHz) with extended tuning voltage (VP1 = 5.5 V) for wide-VCO-range coverage.

Use Value: Delivers −84 dBc/Hz @ 1 kHz offset (2400 MHz) and supports >200 kHz PFD frequency - enables tight loop bandwidths for low jitter and fast carrier switching.

Use Scenario: Signal source module in benchtop spectrum analyzers and vector signal generators requiring multi-frequency agility.

IC Role / Device Role / Timing Role: Serves as programmable LO engine for RF front-end calibration and stimulus generation with dual-channel coherence.

Use Value: Enables synchronized RF/IF sweep via shared reference and independent N-divider programming - simplifies firmware control of multi-tone test signals.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-PLL frequency synthesizer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADF4153AACPZ-R7	Single-channel PLL with integrated VCO; no IF path; max RF frequency 4.4 GHz; no separate VP supply	Suitable only for single-LO systems; lacks dual-path flexibility and extended tuning voltage capability	Choose when space-constrained designs require integrated VCO and only one LO is needed.
LMX2531LQ1E02/NOPB	Single-channel PLL with integrated VCO; 2.5 GHz max; 3.3 V only; no analog lock detect; different serial protocol	Not suitable for dual-LO architectures; lacks independent IF section and VP1/VP2 flexibility	Select for cost-sensitive single-LO applications where integrated VCO eliminates external component count.

Compared with ADF4212LBRUZ-RL, the ADF4153AACPZ-R7 offers higher RF frequency but sacrifices IF synthesis and dual-channel independence, while the LMX2531LQ1E02/NOPB reduces bill-of-materials with an on-chip VCO but cannot replicate simultaneous RF/IF LO generation or extended tuning voltage headroom.

Availability

ADF4212LBRUZ-RL is available at Aetrix Electronics and suitable for wireless handset design, CATV tuner production, and communications test equipment development requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for ADF4212LBRUZ-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, with engineering centers worldwide and a legacy of precision RF IC innovation since the 1970s.

The ADF4212LBRUZ-RL belongs to Analog Devices' ADF4xxx PLL synthesizer family, engineered specifically for dual-path local oscillator generation in wireless infrastructure and consumer RF systems demanding low power, high integration, and flexible frequency planning.

FAQ

What is the maximum RF input frequency supported by the ADF4212LBRUZ-RL?

The ADF4212LBRUZ-RL supports RF input frequencies from 0.2 GHz to 2.4 GHz. This range covers major cellular bands including GSM 900 MHz, PCS 1900 MHz, and LTE Band 7 (2600 MHz). Operation above 2.4 GHz is not guaranteed - the device's internal prescaler and CMOS counters are rated for a maximum output frequency of 188 MHz, limiting usable RF input based on selected prescaler ratio (e.g., 32/33 required for 2.4 GHz input).

How does the RSET pin configure charge pump current in the ADF4212LBRUZ-RL?

The RSET pin on the ADF4212LBRUZ-RL sets the maximum charge pump current (ICP) for both RF and IF channels using the formula ICP = 13.5 / RSET (kΩ) mA. With a 2.7 kΩ resistor, ICP is 5 mA; with 5.6 kΩ, it drops to 625 µA. The pin maintains a nominal 0.66 V bias, and the relationship is linear across the 1.5 kΩ to 5.6 kΩ range - enabling precise loop filter gain tuning for stability and transient response.

Can the ADF4212LBRUZ-RL generate both RF and IF LO signals simultaneously?

Yes, the ADF4212LBRUZ-RL contains two fully independent PLL channels - one for RF (with CPRF, RFIN, VP1) and one for IF (with CPIF, IFIN, VP2) - allowing concurrent synthesis of distinct LO frequencies. Each channel has its own R/A/B counters, prescaler, and lock detect, enabling true simultaneous operation without resource contention or timing interdependence.

What package type is used for the ADF4212LBRUZ-RL?

The ADF4212LBRUZ-RL uses a 20-lead TSSOP (Thin Shrink Small Outline Package) with exposed thermal pad (RU-20 designation). It is pin-compatible with the LFCSP variant at the functional level but differs in physical pin mapping - datasheet Figure 3 confirms TSSOP layout, and "-RL" suffix denotes tape-and-reel packaging for automated assembly.

Does the ADF4212LBRUZ-RL support fast frequency switching for TDD applications?

Yes, the ADF4212LBRUZ-RL includes Fastlock mode, which accelerates PLL lock acquisition by temporarily increasing PFD gain during initial phase alignment. This reduces lock time to under 100 µs in typical configurations - making it suitable for time-division duplex (TDD) systems like TD-SCDMA and LTE-TDD where rapid LO reconfiguration between transmit and receive slots is required.

ADF4212LBRUZ-RL Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 20-TSSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Type:: Clock/Frequency Synthesizer (RF/IF)

PLL:: Yes

Input:: CMOS, TTL

Output:: Clock

Number of Circuits:: 1

Ratio - Input:Output:: 3:1

Differential - Input:Output:: Yes/Yes

Frequency - Max:: 2.4GHz

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:: 20-TSSOP

ADF4212LBRUZ-RL FAQ

1.How can I place an order for ADF4212LBRUZ-RL through Aetrix?

Please submit a Request for Quotation (RFQ) for ADF4212LBRUZ-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 ADF4212LBRUZ-RL reliable?

The price and inventory of ADF4212LBRUZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADF4212LBRUZ-RL is usually 5 days.

3.What payment methods are accepted for ADF4212LBRUZ-RL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADF4212LBRUZ-RL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADF4212LBRUZ-RL?

ADF4212LBRUZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADF4212LBRUZ-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 ADF4212LBRUZ-RL?

For technical support, including ADF4212LBRUZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADF4212LBRUZ-RL requirements.

6.How does Aetrix verify that ADF4212LBRUZ-RL is sourced from the original manufacturer or authorized distributors?

All ADF4212LBRUZ-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 ADF4212LBRUZ-RL meets industry standards.

7.What is the process for return or replacement of ADF4212LBRUZ-RL?

All ADF4212LBRUZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADF4212LBRUZ-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 ADF4212LBRUZ-RL part is unused and in its original packaging.

Return procedure for ADF4212LBRUZ-RL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…