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Analog Devices Inc. ADF4153BRU-REEL7
- Part No.:
- ADF4153BRU-REEL7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADF4153BRU-REEL7.pdf
- Description:
- IC FRACT N SYNTH 16TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADF4153BRU-REEL7 from Analog Devices is a fractional-N frequency synthesizer IC 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 3-wire serial interface - enabling precise LO generation for GSM/CDMA/W-CDMA base station transmitters.
For engineers reviewing the ADF4153BRU-REEL7 datasheet, ADF4153BRU-REEL7 pinout, ADF4153BRU-REEL7 application, or ADF4153BRU-REEL7 equivalent, key selection criteria include its 4 GHz RF bandwidth, −102 dBc/Hz phase noise at 5 kHz offset (1750 MHz output), programmable fractional modulus (2–4095), analog/digital lock detect, and automotive-qualified Y-version compatibility.
Technical Context
The ADF4153BRU-REEL7 implements a third-order Σ-Δ fractional interpolator to enable fine frequency resolution with integer-N PLL architecture. Its PFD operates up to 32 MHz, and the N-divider supports INT (31–511) + FRAC/MOD (0 ≤ FRAC < MOD) synthesis, where MOD is programmable from 2 to 4095.
It integrates a precision charge pump with programmable sink/source current (312.5 µA to 5 mA), separate VP supply (up to 5.5 V) for extended VCO tuning range, and a 4-bit R-counter for reference division (1–15). Lock detection is provided via both analog and digital outputs routed through MUXOUT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Input Frequency | 0.5 GHz to 4.0 GHz - supports direct connection to VCO outputs across cellular, WiMAX, and PMR bands. |
| PFD Frequency Max | 32 MHz - sets maximum reference comparison rate; enables loop bandwidths up to ~20 kHz with stable settling. |
| Charge Pump Current | Programmable 312.5 µA to 5 mA - adjusts loop filter gain to optimize phase noise vs. lock time trade-off. |
| Fractional Modulus Range | 2 to 4095 - determines minimum frequency step size (e.g., 1 Hz resolution possible with high MOD). |
| Phase Noise @ 5 kHz | −102 dBc/Hz at 1750 MHz - measured with 25 MHz PFD, defines spectral purity critical for adjacent channel rejection. |
| Supply Voltage | 2.7 V to 3.3 V (AVDD/DVDD/SDVDD); VP = AVDD to 5.5 V - dual-supply flexibility supports wide-tuning-range VCOs. |
| Operating Temp Range | −40°C to +85°C (B version) - matches industrial-grade RF subsystem requirements without derating. |
Pinout & Package
ADF4153BRU-REEL7 is packaged in a 16-lead TSSOP (RU-16) with exposed paddle not connected internally; board-level thermal management is not required. Pin functions are electrically isolated per domain: AGND/DGND separation minimizes digital switching noise coupling into RF path.
| 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; bipolar ±ICP current source/sink enables type-II PLL configuration. |
| CPGND | Charge pump ground return | Dedicated low-noise analog ground path prevents charge pump current from disturbing DGND. |
| RFINA / RFINB | Differential RF input | Accepts ac-coupled VCO signal; internal limiting amplifier converts to CML for prescaler clocking. |
| REFIN | Reference clock input | CMOS-compatible (0.7–AVDD V p-p); supports 10–250 MHz; internal 100 kΩ bias resistor simplifies drive. |
| CLK / DATA / LE | 3-wire serial interface | 24-bit shift register controlled by rising-edge CLK and LE strobe; MSB-first, two LSBs select register bank. |
| 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) allows >3.3 V tuning voltage delivery to VCO without level-shifting. |
Key Features
| Feature | Design Value |
|---|---|
| Fractional-N synthesis | Third-order Σ-Δ modulator enables sub-Hz frequency resolution while suppressing fractional spurs via dithering. |
| Separate VP supply | Supports VCO tuning voltages up to 5.5 V independently of core logic supply - eliminates need for external charge pump boosters. |
| Analog + digital lock detect | Dual lock indicators provide redundancy: analog output reflects PFD phase error magnitude; digital output asserts on stable lock condition. |
| Pin-compatible family | Direct replacement for ADF4110/4111/4112/4113/4106 - enables drop-in upgrade path to higher RF bandwidth and improved phase noise. |
| Automotive qualification | Y-version qualified to −40°C to +125°C; B-version (ADF4153BRU-REEL7) meets industrial temp range and AEC-Q100 stress test alignment. |
Applications
| Base Station Transmitter LO | Wireless Test Equipment |
|---|---|
|
Use Scenario: Generating stable local oscillator signals for upconversion in macrocell GSM/CDMA/W-CDMA base station transmitters. IC Role / Device Role / Timing Role: Fractional-N synthesizer providing programmable RF output (0.5–4 GHz) synchronized to 10–250 MHz reference clock. Use Value: −102 dBc/Hz phase noise at 5 kHz offset ensures >70 dB ACLR in 5-MHz LTE channels; programmable FRAC/MOD enables exact carrier placement per band plan. |
Use Scenario: Programmable LO source in vector signal analyzers and RF signal generators requiring fast frequency agility and low spurious content. IC Role / Device Role / Timing Role: Core frequency synthesis engine with 3-wire interface for remote control and MUXOUT-based lock verification. Use Value: Digital lock detect + MUXOUT-scaled RF output enables automated calibration routines; 32 MHz PFD max supports <100 µs lock time in swept-frequency modes. |
| PMR Radio Front-End | WiMAX Subscriber Unit |
|
Use Scenario: Local oscillator in professional mobile radio (PMR) handhelds and repeaters operating in 380–470 MHz or 700–800 MHz bands. IC Role / Device Role / Timing Role: Low-power fractional-N synthesizer driving VCO in direct-conversion transmitter architecture. Use Value: 24 mA typical IDD and 1 µA sleep mode support battery-operated operation; 2.7–3.3 V supply matches single-cell Li-ion systems. |
Use Scenario: Frequency synthesizer in fixed WiMAX CPE units requiring robust LO performance across 2.3–3.8 GHz licensed bands. IC Role / Device Role / Timing Role: High-bandwidth RF synthesizer with separate VP rail to drive wide-tuning-range VCOs (e.g., 2.5–3.5 V tuning range). Use Value: VP up to 5.5 V enables full VCO tuning range utilization without external op-amp buffers; consistent RF output phase aids coherent multi-antenna timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fractional-N frequency synthesizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADF4158BCPZ-RL7 | Wider RF range (up to 6.1 GHz), integrated VCO, SPI interface only - no analog lock detect or VP pin. | Replaces discrete ADF4153 + external VCO in compact SDR designs; unsuitable where external VCO tuning voltage >3.3 V is needed. | Select ADF4158 when board space is constrained and integrated VCO suffices; retain ADF4153BRU-REEL7 when external VCO control, VP flexibility, or analog lock detect are required. |
| LMX2594RHAR | Higher PFD max (150 MHz), wider RF (10 MHz–15 GHz), JESD204B sync, but requires 3.3 V only - no VP pin or automotive temp grade. | Targets high-speed data converter clocking and mmWave 5G; lacks separate VP and analog lock detect needed for legacy VCO interfaces. | Choose LMX2594 for wideband, high-PFD applications with digital-only control; ADF4153BRU-REEL7 remains optimal for cost-sensitive, VCO-flexible, industrial-temp RF LOs. |
Compared with ADF4153BRU-REEL7, ADF4158BCPZ-RL7 integrates the VCO but sacrifices VP flexibility and analog lock detect, while LMX2594RHAR offers broader bandwidth and higher PFD but omits VP and automotive qualification - making ADF4153BRU-REEL7 uniquely suited for discrete-VCO, wide-tuning-voltage, industrial-grade RF synthesizer applications.
Availability
ADF4153BRU-REEL7 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, long-term lifecycle support, and automotive-aligned reliability.
Supply support for ADF4153BRU-REEL7 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 RF ICs, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.
The ADF4153 is part of Analog Devices' PLL frequency synthesis product line, designed specifically for high-spectral-purity local oscillator generation in wireless infrastructure, test instrumentation, and professional radio systems.
FAQ
What is the maximum RF input frequency supported by the ADF4153BRU-REEL7?
The ADF4153BRU-REEL7 supports an RF input frequency range of 0.5 GHz to 4.0 GHz. This specification applies to both B and Y versions and is validated under standard test conditions (−8 dBm min for B version, −6.5 dBm min for Y version). The device uses a differential input stage (RFINA/RFINB) with internal limiting amplifiers to convert incoming RF signals to CML levels suitable for the prescaler.
Does the ADF4153BRU-REEL7 support fractional-N synthesis with spur suppression?
Yes, the ADF4153BRU-REEL7 implements a third-order Σ-Δ fractional interpolator that dynamically dithers the MOD value to spread quantization noise, reducing in-band fractional spurs. Its noise and spur register (R3) provides selectable modes - lowest noise, low noise + low spur, and low spur - allowing designers to optimize phase noise versus spur performance based on system requirements.
How is charge pump current programmed on the ADF4153BRU-REEL7?
Charge pump current on the ADF4153BRU-REEL7 is set by an external resistor (RSET) connected between the RSET pin and ground. The relationship is ICP = 25 / RSET (with RSET in kΩ), yielding 5 mA typical at 5.1 kΩ. The device also supports programmable current scaling via internal register bits, enabling dynamic adjustment of loop filter gain during operation without hardware changes.
Can the ADF4153BRU-REEL7 be used with a 5 V VCO tuning voltage?
Yes - the ADF4153BRU-REEL7 includes a dedicated VP pin rated up to 5.5 V, independent of the 2.7–3.3 V core supplies (AVDD/DVDD/SDVDD). This allows direct interfacing with VCOs requiring tuning voltages beyond 3.3 V, eliminating external level-shifting circuitry. VP must be ≥ VDD and decoupled locally to ensure stable charge pump operation.
Is the ADF4153BRU-REEL7 pin-compatible with earlier ADF41xx devices?
Yes, the ADF4153BRU-REEL7 is explicitly pin-compatible with ADF4110, ADF4111, ADF4112, ADF4113, and ADF4106 in the same TSSOP-16 package. This enables drop-in upgrades to higher RF bandwidth (4 GHz vs. 3 GHz), improved phase noise, and enhanced fractional-N performance without PCB layout changes.
ADF4153BRU-REEL7 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:
- 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-REEL7 FAQ
1.How can I place an order for ADF4153BRU-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADF4153BRU-REEL7 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-REEL7 reliable?
The price and inventory of ADF4153BRU-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADF4153BRU-REEL7 is usually 5 days.
3.What payment methods are accepted for ADF4153BRU-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADF4153BRU-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADF4153BRU-REEL7?
ADF4153BRU-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADF4153BRU-REEL7 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-REEL7?
For technical support, including ADF4153BRU-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADF4153BRU-REEL7 requirements.
6.How does Aetrix verify that ADF4153BRU-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADF4153BRU-REEL7 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-REEL7 meets industry standards.
7.What is the process for return or replacement of ADF4153BRU-REEL7?
All ADF4153BRU-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADF4153BRU-REEL7, 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-REEL7 part is unused and in its original packaging.
Return procedure for ADF4153BRU-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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