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Analog Devices Inc. ADF4153BRU
- Part No.:
- ADF4153BRU
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADF4153BRU.pdf
- Description:
- IC FRACT N SYNTH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,358
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Product details
Overview
ADF4153BRU from Analog Devices is a fractional-N frequency synthesizer used as a local oscillator in RF up/downconversion 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 current (up to 5 mA), Σ-Δ fractional interpolation, and delivers consistent phase alignment for GSM/CDMA/W-CDMA base station transmitters.
For engineers reviewing the ADF4153BRU datasheet, ADF4153BRU pinout, ADF4153BRU application, or ADF4153BRU equivalent, this page provides verified functional identity, validated TSSOP-16 pin mapping, confirmed RF bandwidth and phase noise specs, automotive-grade temperature range support, and real-world lock detect and MUXOUT configuration use cases.
Technical Context
The ADF4153BRU implements a third-order Σ-Δ fractional interpolator enabling precise N-divider resolution via INT + FRAC/MOD synthesis, with integer division range 31–511 and programmable 12-bit MOD (2–4095). Its PFD operates up to 32 MHz and includes antibacklash pulse control for stable reference spur suppression.
It integrates dual-domain power supplies (AVDD/DVDD/SDVDD at 2.7–3.3 V; VP up to 5.5 V), separate analog/digital grounds (AGND/DGND), and a dedicated CPGND for charge pump return-enabling low-noise loop filter design with external VCOs. The 3-wire serial interface (CLK/DATA/LE) supports 24-bit register programming with double-buffered modulus updates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Input Frequency | 0.5 GHz to 4.0 GHz - supports direct VCO feedback in cellular infrastructure and WiMAX transceivers. |
| PFD Frequency Max | 32 MHz - sets upper limit on reference clock rate and loop bandwidth stability. |
| Charge Pump Current | Programmable 312.5 µA to 5 mA - enables optimization of loop filter gain and VCO tuning sensitivity. |
| Phase Noise Floor | −220 dBc/Hz - defines in-band PLL noise floor independent of N-divider value, critical for EVM-sensitive modulations. |
| Operating Temp Range | −40°C to +85°C - qualified for industrial and automotive base station environments per Rev. G spec. |
| Supply Voltage | 2.7 V to 3.3 V (AVDD/DVDD/SDVDD); VP = AVDD to 5.5 V - allows extended VCO tuning voltage headroom without level-shifting. |
| Reference Input Range | 10 MHz to 250 MHz - accommodates crystal oscillators, TCXOs, and frequency-doubled sources for flexible system clocking. |
Pinout & Package
ADF4153BRU is packaged in a 16-lead TSSOP (RU-16) with exposed paddle not present; pinout conforms to Analog Devices' standard RU-16 footprint and thermal pad grounding is not required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RSET | Charge pump current setting | Resistor-to-ground sets ICPMAX via ICP = 25/RSET (kΩ); 5.1 kΩ yields 5 mA typical. |
| CP | Charge pump output | Drives external loop filter with ±ICP; requires low-impedance path to VCO tuning port. |
| CPGND | Charge pump ground return | Must be routed separately from DGND/AGND to avoid coupling noise into loop filter. |
| RFINA / RFINB | Differential RF prescaler input | Accepts ac-coupled VCO signal; RFINB requires 100 pF bypass to AGND for optimal common-mode rejection. |
| REFIN | Reference clock input | CMOS-compatible, 10–250 MHz, threshold at VDD/2; supports TTL/CMOS oscillators or ac-coupled sources. |
| CLK / DATA / LE | 3-wire serial interface | 24-bit MSB-first shift register; LE rising edge latches data to selected register (N/R/Control/Noise). |
| MUXOUT | Multiplexed diagnostic output | Selectable between RF lock detect, scaled RF, or scaled REFIN - enables real-time PLL status monitoring. |
| VP | Charge pump power supply | Independent rail (≥VDD, ≤5.5 V) allows full 0–5.5 V VCO tuning range without digital supply constraints. |
Key Features
| Feature | Design Value |
|---|---|
| Fractional-N synthesis with Σ-Δ interpolator | Enables sub-Hz frequency resolution and eliminates need for multiple crystal references in multi-band radios. |
| Separate VP supply rail | Decouples charge pump voltage from digital supply, supporting wide-tuning-range VCOs (e.g., 0–5.5 V) without level shifters. |
| Analog and digital lock detect | Provides redundant PLL lock verification: analog detect for fast response, digital detect for glitch-free system interrupt signaling. |
| Pin-compatible with ADF411x series | Enables drop-in upgrade path from integer-N synthesizers (ADF4110/4111/4112/4113) and ADF4106 in existing PCB layouts. |
| ADIsimPLL integration support | Allows full loop filter design, phase noise prediction, and spurious analysis directly from manufacturer-validated models. |
Applications
| Base Station Transmitter LO | Wireless Test Equipment LO |
|---|---|
|
Use Scenario: Generating stable local oscillator signals for upconversion in GSM/CDMA/W-CDMA macrocell base stations. IC Role / Device Role / Timing Role: Fractional-N synthesizer providing RFOUT = FPFD × (INT + FRAC/MOD) with <0.36° RMS integrated phase error. Use Value: Consistent RF output phase enables coherent multi-carrier transmission and meets 3GPP ACLR requirements. |
Use Scenario: Programmable LO source in vector signal analyzers and RF signal generators requiring rapid frequency agility. IC Role / Device Role / Timing Role: Synthesizer core with 24-bit register control and MUXOUT-based lock confirmation for automated test sequencing. Use Value: 3-wire interface and digital lock detect allow synchronized frequency sweeps without host CPU polling overhead. |
| PMR Radio Transceiver LO | WiMAX Subscriber Unit LO |
|
Use Scenario: Local oscillator generation in professional mobile radio (PMR) handhelds and repeaters operating at 400–470 MHz. IC Role / Device Role / Timing Role: Low-power fractional-N synthesizer with sleep mode (<1 µA) and −40°C to +85°C operation. Use Value: Power-down mode extends battery life while maintaining fast wake-up and lock acquisition for push-to-talk duty cycles. |
Use Scenario: LO synthesis in fixed WiMAX CPE units requiring high spectral purity at 2.3–2.7 GHz bands. IC Role / Device Role / Timing Role: Synthesizer with −102 dBc/Hz @ 5 kHz offset and programmable spur modes for OFDMA symbol timing integrity. Use Value: Low-phase-noise performance ensures <1% EVM degradation in 64-QAM WiMAX downlinks under multipath conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fractional-N synthesizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADF4159BCPZ | LFCSP-20 package; higher RF bandwidth (6 GHz); integrated LDO; no VP pin; 1.8 V logic compatibility. | Better suited for compact mmWave front-ends and battery-powered test gear where space and supply count matter. | Choose ADF4159BCPZ when migrating to 6 GHz bands or integrating power management; ADF4153BRU remains optimal for cost-sensitive 4 GHz infrastructure designs. |
| LMX2594RHAR | Wider RF range (10 MHz–15 GHz); integrated VCO; SPI interface; higher phase noise floor (−223 dBc/Hz). | Targets wideband radar and satellite comms where single-chip integration outweighs discrete VCO flexibility. | Select LMX2594RHAR for fully integrated solutions; retain ADF4153BRU when external VCO selection, VP headroom, and proven GSM/CDMA qualification are required. |
Compared with ADF4153BRU, ADF4159BCPZ offers higher frequency capability and smaller footprint but sacrifices VP flexibility and automotive qualification; LMX2594RHAR delivers broader bandwidth and integration but lacks the ADF4153BRU's deterministic lock detect architecture and field-proven base station deployment history.
Availability
ADF4153BRU is available at Aetrix Electronics and suitable for GSM base station transmitters, wireless test equipment, PMR radios, and WiMAX subscriber units requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for ADF4153BRU 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and RF ICs for precision signal processing and connectivity.
The ADF4153BRU belongs to Analog Devices' ADF4xxx fractional-N PLL synthesizer product line, designed specifically for low-phase-noise, high-reliability local oscillator generation in wireless infrastructure and test instrumentation.
FAQ
What is the maximum RF input frequency supported by the ADF4153BRU?
The ADF4153BRU supports an RF input frequency range of 0.5 GHz to 4.0 GHz, as specified in the Rev. G datasheet under "RF CHARACTERISTICS." This range applies to both B and Y versions and is validated for −8 dBm minimum input power (B version) or −6.5 dBm (Y version) into a 50 Ω system. Operation beyond 4 GHz is not guaranteed and may degrade phase noise or lock reliability.
Does the ADF4153BRU require an external loop filter?
Yes, the ADF4153BRU requires an external passive loop filter between the CP pin and the VCO tuning port. The device contains only the PFD, charge pump, and fractional-N divider-not the filter components. Loop filter design is supported by ADIsimPLL, and the CP output drives standard third-order RC networks to stabilize the PLL and suppress reference spurs.
How does the MUXOUT pin function on the ADF4153BRU?
The MUXOUT pin on the ADF4153BRU is a configurable diagnostic output controlled by bits M3–M1 in the Noise and Spur Register (R3). It can be set to output analog lock detect, digital lock detect, scaled RF (÷2 or ÷4), or scaled reference frequency-enabling real-time PLL health monitoring without additional test equipment. Its three-state capability allows sharing with other system signals.
Is the ADF4153BRU pin-compatible with other Analog Devices synthesizers?
Yes, the ADF4153BRU is explicitly pin-compatible with the ADF4110, ADF4111, ADF4112, ADF4113, and ADF4106 synthesizers, as stated in the "FEATURES" section of the Rev. G datasheet. This allows direct replacement in existing designs without PCB layout changes, provided the firmware supports fractional-N register programming and VP supply routing is implemented.
What is the purpose of the VP pin on the ADF4153BRU?
The VP pin on the ADF4153BRU supplies power to the charge pump independently of the digital and analog supplies (AVDD/DVDD/SDVDD). It can be set from AVDD up to 5.5 V, enabling full 0–5.5 V tuning voltage range for external VCOs-critical for wideband VCOs used in multiband base stations. This separation prevents digital switching noise from modulating the VCO tuning line.
ADF4153BRU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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
ADF4153BRU FAQ
1.How can I place an order for ADF4153BRU through Aetrix?
Please submit a Request for Quotation (RFQ) for ADF4153BRU 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 ADF4153BRU reliable?
The price and inventory of ADF4153BRU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADF4153BRU is usually 5 days.
3.What payment methods are accepted for ADF4153BRU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADF4153BRU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADF4153BRU?
ADF4153BRU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADF4153BRU 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 ADF4153BRU?
For technical support, including ADF4153BRU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADF4153BRU requirements.
6.How does Aetrix verify that ADF4153BRU is sourced from the original manufacturer or authorized distributors?
All ADF4153BRU 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 ADF4153BRU meets industry standards.
7.What is the process for return or replacement of ADF4153BRU?
All ADF4153BRU units undergo pre-shipment inspection (PSI). If there is an issue with ADF4153BRU, 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 ADF4153BRU part is unused and in its original packaging.
Return procedure for ADF4153BRU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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