AFSC5G26D37T2 >
AFSC5G26D37T2
NXP USA Inc.
IC AMP 5G 2.496-2.69GHZ 26HLQFN
1000400 Pcs New Original In Stock
RF Amplifier IC 5G, LTE 2.496GHz ~ 2.69GHz 26-HLQFN (10x6)
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AFSC5G26D37T2
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AFSC5G26D37T2

Product Overview

3218239

DiGi Electronics Part Number

AFSC5G26D37T2-DG

Manufacturer

NXP USA Inc.
AFSC5G26D37T2

Description

IC AMP 5G 2.496-2.69GHZ 26HLQFN

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1000400 Pcs New Original In Stock
RF Amplifier IC 5G, LTE 2.496GHz ~ 2.69GHz 26-HLQFN (10x6)
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Minimum 1

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AFSC5G26D37T2 Technical Specifications

Category RF Amplifiers

Manufacturer NXP Semiconductors

Packaging Cut Tape (CT) & Digi-Reel®

Series -

Product Status Active

Frequency 2.496GHz ~ 2.69GHz

P1dB -

Gain 28.3dB

Noise Figure -

RF Type 5G, LTE

Voltage - Supply 0V ~ 32V

Current - Supply -

Test Frequency -

Mounting Type Surface Mount

Package / Case 26-LQFN Exposed Pad

Supplier Device Package 26-HLQFN (10x6)

Base Product Number AFSC5

Datasheet & Documents

HTML Datasheet

AFSC5G26D37T2-DG

Environmental & Export Classification

RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.33.0001

Additional Information

Other Names
935345736528
568-AFSC5G26D37T2CT
568-AFSC5G26D37T2DKR
568-AFSC5G26D37T2TR
Standard Package
2,000

NXP AFSC5G26D37: Integrated Doherty Power Amplifier Module for 2.5 GHz 5G and LTE Wireless Infrastructure

Overview of the NXP AFSC5G26D37 Power Amplifier Module

The NXP AFSC5G26D37 module integrates a Doherty power amplifier architecture, leveraging both main and peaking amplifiers in a single device to address complex linearity and efficiency demands of LTE and 5G wireless base stations. The Doherty configuration dynamically adjusts load impedance based on the required output, sustaining high efficiency across backed-off power levels—an essential trait when amplifying high crest factor signals typical of OFDM-based protocols like LTE. In practice, careful matching within the 2.496 to 2.690 GHz range is essential to maintain optimal gain and minimize out-of-band emissions, especially in challenging signal environments encountered in mid-band cellular deployment.

The physical design—a compact 10 mm × 6 mm HLQFN package—streamlines integration into dense PCB layouts, where real estate and thermal management are often constrained. The exposed pad expedites heat dissipation, which is particularly critical for maintaining amplifier reliability during continuous high-power operation. Thermal simulation and real-world deployment underscore the necessity of multilayer heatsinking and strategic airflow management to preclude junction temperature excursions, especially in outdoor units subjected to variable climate conditions.

Output power and gain characteristics reflect the module’s engineering towards modern radio units. Achieving an average 5 W output with 27 dB gain under LTE modulation is contingent not only on transistor selection and Doherty line implementation but also on precise biasing and envelope tracking techniques. Maintaining signal fidelity for massive MIMO arrays and remote radio heads demands effective linearization schemes, such as digital predistortion (DPD), integrated at the system level. Field tests reveal that DPD adaptation is smoother when paired with amplifiers exhibiting stable amplitude-phase transfer functions and minimal memory effects; the AFSC5G26D37’s architecture supports these operational requirements.

Application scenarios extend to outdoor small cells, backhaul radios, and MIMO remote heads, where the balance between power efficiency, spectral purity, and robustness against environmental stressors defines system viability. In high-capacity nodes, the module's efficiency at backoff not only reduces energy consumption but also mitigates requirements for oversized power supplies and thermal management overhead. Modularity of deployment is facilitated by the uniform package footprint and pinout, which reduce requalification cycles across diverse channel bands.

A key insight emerges in the trade-offs between linearity and efficiency as system designers push for higher-order modulation schemes and broader instantaneous bandwidths. The Doherty topology of the AFSC5G26D37, when paired with fine-tuned bias control and adaptive linearization, demonstrates a pragmatic pathway for achieving stringent EVM and ACLR metrics without excessive derating of output power or thermal capacity. Integrating such modules in dense radio architectures not only accelerates time-to-market but also permits agile upgrades as wireless standards evolve. The underlying design philosophy reflects an emphasis on scalable integration, simplified RF path engineering, and sustained reliability in rapidly evolving radio environments.

Target Frequency Range and Applications of AFSC5G26D37

The AFSC5G26D37 is engineered to serve wireless infrastructure across the 2496–2690 MHz spectrum, covering the majority of globally standardized LTE and 5G bands, with a particular focus on TDD and FDD operation in the 2545–2655 MHz range. This breadth of coverage introduces significant flexibility, enabling system integrators to align with both legacy LTE deployments and newer 5G networks without platform redesign. Internally, the module employs wideband architectures to maintain flat gain and high-power-added efficiency across band edges and typical center frequencies, such as 2575, 2600, and 2625 MHz. This consistency reduces the complexity of RF chain calibration and simplifies multiband network planning.

Fundamentally, the active device selection and impedance-matched packaging are optimized for broadband response, directly impacting linearity and output power uniformity across the target range. These characteristics become particularly advantageous in applications like massive MIMO where channel aggregation and high signal integrity are critical. The compact form factor of the AFSC5G26D37 addresses densification challenges in urban macro networks and small cell rollouts. Heat dissipation strategies and bias control logic in the module further adapt to the modulation schemes and dynamic load conditions encountered in live deployments, supporting both burst and continuous traffic with minimal degradation.

In distributed antenna systems and outdoor radio heads, the module’s robust power output enables extended coverage with fewer nodes, contributing to reduced site acquisition and maintenance overhead. Field measurements confirm that, even at spectral extremes, the module sustains target gain within tight tolerances, significantly easing the integration timeline for OEMs developing carrier-grade solutions. The AFSC5G26D37 thus exemplifies a shift toward frequency-agnostic PA design that supports long product cycles and accelerates the deployment of advanced radio technologies. By aligning module performance with evolving wireless standards, networks achieve a higher return on investment and greater adaptation to periodic frequency allocation changes. This strategic flexibility, paired with reliably measured RF metrics, positions such PA solutions as foundational elements in next-generation wireless infrastructure.

Doherty Architecture and Integration Features

Doherty architecture, as implemented in the AFSC5G26D37, utilizes a sophisticated combination of carrier and peaking amplifier stages within a single, tightly integrated package. This advanced topology enables dynamic load modulation, a mechanism critical for maintaining high power-added efficiency (PAE) during backed-off operation. In practical systems, especially those handling complex, high-peak-to-average power ratio (PAPR) signals, such efficiency gains translate directly into lower system power consumption and reduced thermal management requirements. The seamless integration of the carrier and peaking paths within the module streamlines assembly and reduces parasitic elements that often compromise efficiency and linearity in discrete implementations.

The architecture is distinguished by its precise 50 Ω input and output matching. By embedding this matching network, the device minimizes external component count and mitigates RF losses due to mismatch, allowing faster design cycles for the RF front-end. This becomes particularly valuable in densely populated PCBs where space and routing flexibility are at a premium. The DC blocking on both input and output not only eliminates the need for additional AC coupling capacitors but also enhances reliability by reducing points of failure and simplifying bias sequencing in multi-stage lineups.

Adaptability to both analog and digital linearization schemes is engineered into the module’s signal path and bias arrangements. This flexibility supports a wide spectrum of predistortion algorithms, allowing the device to maintain spectral compliance under varied modulation scenarios used in evolving base station requirements. Analog linearization methods benefit from the low-complexity bias optimization, while digital approaches can leverage the module’s inherently predictable gain and phase characteristics, facilitating rapid convergence and robust error vector magnitude (EVM) performance. In previous system integrations, this characteristic has repeatedly reduced validation cycles and smoothing interoperability with widely used digital predistortion (DPD) platforms.

At the core of the solution is the fully integrated Doherty design, which ensures that PAE remains high not only at saturation but also at the typical output power levels encountered in modern communications networks. This efficiency behavior directly supports base station deployments, where average transmit power often operates well below the amplifier’s rated maximum due to stringent linearity demands and dynamic traffic patterns. Integration thus becomes a lever for energy savings across a network footprint, supporting both green engineering initiatives and lowering operational expenditures.

A subtle yet significant insight is the engineering trade-off between integration and flexibility. While in-package matching and biasing compress design cycles and reduce bill of materials, they also subtly constrain adjustability for highly niche applications. The module’s design, however, leans toward industry-standard interfaces and behaviors, balancing integration with enough configurability to satisfy the prevailing majority of 5G infrastructure needs. This focus exemplifies a trend toward platform-level integration, where amplifier modules are expected not only to perform optimally in isolation but to actively simplify and enhance the entire RF chain’s deployment and serviceability.

Electrical Performance Characteristics and RF Parameters

Electrical performance underpins the operational efficiency and integration viability of the AFSC5G26D37 within demanding wireless infrastructure environments. With a regulated supply voltage of 28 V, the module demonstrates a robust gain profile, sustaining a typical 27 dB across its designated frequency range. This characteristic accommodates high dynamic range requirements for modern base stations, facilitating reliable signal boosting without significant compression artifacts.

Output power capabilities, nominally rated at 5 W average using LTE waveforms with an 8 dB peak-to-average ratio, ensure compatibility with contemporary modulation schemes prioritizing both throughput and spectrum utilization. In practical deployment scenarios, the Doherty architecture optimizes power-added efficiency, which approaches 40%. This nonlinear efficiency curve is critical for minimizing operational heat dissipation while maintaining linearity at elevated output levels. Such energy conservation directly supports cost optimization and module scaling across large cell arrays.

Spectral purity is evidenced by measured ACPR values exceeding -27 dBc, effectively constraining adjacent channel interference in densely populated frequency allocations. Ensuring low ACPR supports compliance with evolving 3GPP guidelines and reduces the burden of RF filtering in multi-band installations. Gain flatness, maintained within 0.3 dB across the target bandwidth, allows seamless integration with digital pre-distortion algorithms, delivering consistency in signal quality irrespective of instantaneous frequency excursions.

Thermal stability is a pivotal facet, with output parameters exhibiting predictable variation—gain shifts of approximately 0.033 dB/°C and output power drift around 0.018 dB/°C—across an industrial temperature span. Deployments exposed to variable ambient conditions benefit from this inherent predictability, reducing the need for frequent recalibration and enabling automated compensation routines designed for tightly controlled networks.

The intermodulation distortion performance, with IM3 levels around –25 dBc during dual-tone continuous wave testing, adheres to stringent linearity specifications required for carrier aggregation and multi-standard coexistence. This metric ensures minimal signal degradation and harmonics when supporting simultaneous high-capacity LTE or emerging 5G NR transmissions. From field experience, modules exhibiting such distortion contours allow for reduced error vector magnitude in digital modulation, advancing link reliability without exhaustive external linearization.

This set of characteristics provides a modular solution readily adaptable for next-generation radio units and small cell architectures, particularly those emphasizing energy conservation, network scalability, and spectral efficiency. The convergence of high power-added efficiency with precise thermal and spectral control reflects the nuanced advancement in RF design, driving reliable long-term operation and simplifying system-level engineering for distributed antenna systems. The underlying approach demonstrates the value of balancing high-order linearity with pragmatic constraints on power and heat—all critical elements for sustained throughput and service quality in evolving wireless networks.

Thermal, Mechanical, and Reliability Data for AFSC5G26D37

The thermal, mechanical, and reliability characteristics of the AFSC5G26D37 module arise from its advanced HLQFN package design, tailored for high-frequency radio applications. The exposed backside pad, directly connected to PCB ground planes, operates as both DC and RF grounding, while concurrently enabling efficient heat extraction. Under continuous operation, thermal cycles are mitigated by maximizing contact area and using thermally conductive adhesives, allowing case temperatures to stabilize and supporting long-term device integrity.

Housing dimensions of 10×6×1.348 mm support high-density layouts, especially vital within multi-channel RF systems and antenna arrays. The geometrical compactness facilitates short routing distances for RF signals, which, when combined with strategically placed ground vias, minimizes parasitic inductances and supports optimal noise performance. Practical implementation often reveals increased layout flexibility; for instance, designers routinely leverage the package outline to route tightly grouped differential pairs without sacrificing mechanical stability, streamlining integration in next-generation radio base stations.

Moisture Sensitivity Level 3, aligned with JESD22-A113 standards, addresses the susceptibility of semiconductor materials to moisture-induced stress during pre-assembly storage. The 168-hour exposure threshold is specifically balanced for mass production schedules, allowing safe inventory management and pre-bake protocols. Experience shows that adherence to MSL limits naturally translates to improved yield rates, particularly in environments with fluctuating humidity.

Key electrical stress limits include a supply voltage ceiling of 32 V and a maximum pulsed RF input of 30 dBm at 2600 MHz. These ratings are established through accelerated life testing, where modules are subjected to repeated voltage and power surges to validate transient robustness. Notably, sustained exposure to peak operating conditions has demonstrated negligible parametric drift when thermal management is rigorously applied, underscoring the effectiveness of the pad design and PCB stackup synergy.

Reliability projections are derived from mean time to failure (MTTF) modeling at elevated case temperatures up to 125°C under 5 W average output and 32 V supply. Statistical analyses consistently forecast operational longevity exceeding 10 years in telecom deployment scenarios, provided that junction-to-case thermal resistance remains within specification. Application in base station amplifiers and outdoor radio units confirms the stability of thermal profiles and validates the reliability modeling against real-world results, with measured device lifetimes routinely surpassing standard expectations.

Electrostatic Discharge (ESD) ratings—Class 1B for Human Body Model (HBM) and Class C3 for Charged Device Model (CDM)—enable streamlined handling throughout automated assembly lines. This protection framework is engineered using integrated shunt devices, silicon die layout optimization, and meticulous interconnect design, reducing the risk of latent failures. Production feedback indicates that ESD robustness not only reduces scrap rates but also promotes modular assembly approaches, essential for scalable manufacturing.

A layered examination reveals that package engineering, PCB integration practices, and system-level reliability factors converge to deliver a robust module suitable for high-performance, space-constrained RF platforms. When thermal protocols are prioritized and electrical limits respected, operational stability and deployment flexibility are consistently realized. The package’s technical architecture, paired with rigorous reliability qualifications and targeted ESD safeguards, establishes it as a reference point for contemporary radio module design.

Biasing and Gate Quiescent Voltage Details

The Doherty power amplifier architecture leverages staged biasing schemes to optimize linearity and efficiency across dynamic signal conditions. In this configuration, both carrier and peaking amplifiers require distinct yet coordinated biasing strategies. The carrier stage, central to continuous signal amplification, is characterized by a gate threshold voltage near 1.1 V. Real-world fixture measurements indicate that the carrier’s quiescent gate voltage can span from approximately 1.6 V up to 5.7 V, a range dictated by device geometry, process variance, and specific class mode (e.g., class AB or B), as well as characterization under designed load impedances.

Peaking amplifiers, engineered for dynamic headroom, adopt similar gate threshold voltages yet operate with significantly reduced quiescent currents. This deliberate under-biasing ensures that peaking cells activate primarily during back-off—when the drive level rises above the Doherty transition threshold—minimizing static power dissipation and directly strengthening overall efficiency. Such bias regime requires precise control, as premature conduction or excessive delay can degrade modulation accuracy and increase spectral regrowth. Practical fixture implementation benefits from meticulous per-stage bias line testing, permitting empirical adjustment for optimal dynamic range.

Underlying these functional layers is the critical role of temperature compensation networks, typically realized through integrated bias circuits employing thermally-tracking components such as diode-connected transistors or matched resistor networks. These circuits proactive adjust gate-source voltages in response to thermal drift, stabilizing the resultant quiescent drain currents independent of environmental variations. Consistency in this parameter is essential for reproducibility in high-volume deployments, as it directly impacts gain flatness, noise performance, and long-term reliability. Experienced with close-loop bias calibration, fixture-based compensation tailored through iterative tuning offers marked improvements in yield stability and mitigates drift-induced parametric shifts.

Application scenarios for this level of bias precision are evident in wideband communication systems where peak-to-average power ratios fluctuate rapidly, exposing amplifiers to high thermal cycling and demanding tight EMC compliance. By deploying well-engineered gate biasing and compensation networks, Doherty amplifiers achieve robust linearity and efficiency under complex modulated waveforms, aligning with the requirements of contemporary 5G NR and LTE-Advanced infrastructure.

An effective approach surfaces in the calibration of carrier-to-peaking timing offsets, which can be governed by minute adjustments in gate quiescent voltages. This interplay reveals a nuanced trade-off: aggressive peaking activation enhances efficiency at back-off but potentially encroaches into linearity margins. Monitoring real-time drain current profiles via fixture instrumentation can sharpen the operator’s insight into optimal quiescent settings, transforming theoretical biasing principles into measurable performance gains. The implicit takeaway remains—the depth of bias control directly correlates with amplifier resilience, especially as operating conditions and waveform complexity escalate.

Interface, Pin Configuration, and Package Information

Interface, pin configuration, and package design of the AFSC5G26D37 exhibit deliberate engineering for streamlined integration in high-frequency RF systems. The component utilizes a 26-pin arrangement within a robust HLQFN package (10 mm × 6 mm, 1.348 mm thick), balancing mechanical durability with compactness crucial for dense layouts. Distributed ground pins along the package perimeter, complemented by an exposed backside pad, create a low-inductance, low-impedance return path essential for maintaining signal integrity and suppressing parasitic coupling between critical nodes.

RF signal handling is addressed through dedicated RFin and RFout pins, both internally DC blocked and accurately matched to 50 Ω. This not only eases direct connection with standard RF signal chains but eliminates the need for external DC-blocking capacitors or impedance-matching components, thereby reducing insertion loss and PCB real estate consumption. Power management is allotted to separate supply and gate control pins: VGP1, VGP2, VGC1, and VGC2. This segmentation allows for granular biasing of individual amplification stages, ensuring optimal linearity and gain under varying operational conditions—a design choice reflecting feedback from iterative prototype evaluations, where flexible power partitioning mitigated thermal hotspots and improved device reliability.

Pin layout supports direct, unambiguous routing from supply and control planes to amplifier elements and was modeled to minimize trace lengths and loop area. Such configuration simplifies bias tee implementation and aids in achieving compliant electromagnetic compatibility, especially in multi-stage board designs where ground integrity becomes a limiting factor. Mechanical drawings offer precise solder pad dimensions and landing pattern specifications, derived from simulation-driven thermal analysis and empirical reflow testing. The recommended footprint efficiently wicks heat through the exposed center pad, supporting operation in elevated ambient conditions typical of high-power RF front ends.

Product identification is facilitated by laser-marked string codes, a robust method for traceability throughout volume production and field deployment. This approach addresses inventory management challenges observed in high-mix environments, while also satisfying audit and return requirements.

A subtle but impactful aspect lies in the synergy between pin positions and overall package thermal architecture. By integrating both electrical and thermal optimization from the outset, the AFSC5G26D37 enables straightforward scaling from prototype to mass production, minimizing layout iterations and field returns. This cohesive interface design strikes a deliberate balance between electrical performance, manufacturability, and long-term robustness.

Reference Circuit Design and Typical Component Specification

Reference circuit design for the AFSC5G26D37 module leverages an optimized architecture centered on component selection and PCB material specification, streamlining integration into high-frequency applications. The validated schematic utilizes surface-mount ferrite beads—specifically, the Murata BLM15PD300SN1 (30 Ω)—to mitigate high-frequency noise at sensitive bias entry points. This choice effectively suppresses undesired RF coupling and maintains signal integrity across critical signal nodes; practical experience indicates marked improvement in spurious emission control when such beads are deployed close to the device pins.

Decoupling is accomplished with a graded array of multilayer ceramic capacitors, from 0.1 μF to 10 μF, sourced from robust lines including Samsung, AVX, and Murata. These capacitors are distributed across power domains to ensure broadband noise attenuation, stable power delivery, and controlled transient response. Field implementations reveal that careful placement, minimizing parasitic inductance, can significantly reduce ripple and high-frequency resonance, directly affecting the module’s output linearity and efficiency.

Bias current and input impedance stabilization are achieved using tight-tolerance chip resistors at 2.2 kΩ and 5.1 Ω, such as those from Panasonic. The higher-value resistor establishes gate bias, while the low-value component damps potential bias oscillations. Empirical calibration, adjusting resistor values based on device-specific Idq measurement and S-parameter analysis, allows fine-tuning of both quiescent current and overall stability margins, especially when deployed in power amplifier chains with complex load environments.

PCB layout recommendations, specifically mandated Rogers RO4350B laminate with 0.020" thickness (εr = 3.67), demonstrate the significance of substrate selection in maintaining low-loss performance up to millimeter-wave frequencies. The controlled dielectric constant facilitates impedance consistency in microstrip and coplanar transmission lines, enhancing predictable RF matching. Manufacturing trials show that this combination of substrate and stackup geometry reduces insertion loss and supports high-density routing required for compact module design, without sacrificing mechanical reliability.

Integrated within this reference design, the approach to bias networking and RF matching represents an intersection of theoretical modeling and iterative prototyping. Matching networks derived from Smith chart simulations are validated in situ, iterating inductive and capacitive element values to accommodate device-specific Ciss, Crss, and Ls parameters. This accelerates performance benchmarking, reducing re-spin cycles and establishing a stable baseline for derivative designs. The implicit insight is that reference circuits, when systematically applied and empirically refined, minimize uncertainty in first-pass hardware, yielding robust yield rates and consistent field reliability.

Summary of Key Attributes and Deployment Scenarios

The AFSC5G26D37 module demonstrates a convergence of advanced RF power amplifier design and system-level integration, making it a strategic component for modern LTE and 5G mid-band networks. At its core, the module leverages an integrated Doherty architecture—a topology selected for its intrinsic ability to maximize back-off efficiency while maintaining high linearity, critical in achieving spectral compliance under complex LTE/5G signal conditions. The device’s compact footprint, resulting from optimized mechanical design and miniaturized passive networks, addresses the space constraints prevalent in MIMO radio and small cell platforms.

Electrically, the module covers a wide operational frequency range, supporting mid-band telecom allocations. This breadth ensures compatibility with evolving infrastructure requirements, a key factor as operators seek scalable RF front-ends. Consistency in gain and efficiency, when subjected to challenging LTE-like modulation schemes, directly benefits both network coverage and overall system energy consumption. The inherent linearity not only enhances error vector magnitude (EVM) performance but also reduces the demands placed on downstream digital predistortion (DPD) algorithms, offering headroom for further RAN-side optimizations.

Engineered with fully matched input and output stages, the AFSC5G26D37 reduces the complexity of RF chain design. This feature facilitates rapid baseband interface and simplifies multi-device array implementations, crucial for massive MIMO deployments where integration time directly affects rollout velocity. Accompanying biasing support, including on-board active control, yields predictable quiescent current across temperature and voltage swings, minimizing drift and supporting high-yield manufacturing across diverse system builds.

Thermal management emerges as a central aspect, given the high power densities typical of rooftop and outdoor cellular applications. The module incorporates a low-thermal-resistance package and materials, streamlining the mechanical interface between the device and system heat sinks. Certified reliability under cyclic load and environmental stress reflects rigorous qualification for outdoor deployment, translating into lower field failure rates and reduced maintenance intervention in distributed node architectures.

Field deployment scenarios highlight the module’s value addition. In small cell enclosures where airflow is minimal, the efficient dissipation of waste heat determines mean time between failures (MTBF), directly influencing operator OPEX. For large antenna arrays, module-to-module consistency in S-parameter performance accelerates calibration processes and yields more uniform beamforming, improving coverage and user experience. Applications integrating envelope tracking or digital pre-correction benefit from the module’s linearity and input/output matching, reducing algorithmic overhead and ensuring compliance with both legacy and emerging 3GPP spectral masks.

A noteworthy observation is the architectural flexibility provided for future network evolution. The module’s broadband characteristics and robust linearity future-proof infrastructure against bandwidth expansion and more stringent emission standards anticipated in next-phase 5G rollouts. In sum, the AFSC5G26D37 answers critical system needs in advanced radio units, combining foundational RF engineering with field-proven practices to realize scalable, reliable, and energy-efficient telecom solutions.

Conclusion

The NXP AFSC5G26D37 represents a pivotal evolution in high-efficiency RF power amplifier modules, engineered for mid-band cellular infrastructure operating from 2.496 to 2.690 GHz. Its core architecture capitalizes on a two-stage Doherty topology, strategically integrated into a miniaturized 26-lead HLQFN package. By embedding carrier and peaking paths alongside internal DC blocking and 50 Ω matching, the module delivers robust average output power of 5 W, sustains power added efficiency (PAE) close to 40% under modulated LTE signals, and simultaneously preserves linearity benchmarks critical for LTE and emerging 5G applications.

This architecture exploits the inherent load modulation mechanism of the Doherty concept, optimizing back-off efficiency that supports the high peak-to-average ratios typical of OFDM-based cellular transmissions. In practice, this means that the amplifier maintains low distortion across a substantial power dynamic range, crucial for minimizing spectral splatter and adjacent channel interference in multi-carrier deployments. The internal integration of impedance transformation, DC biasing networks, and terminal matching streamlines RF chain design, reduces board footprint, and alleviates the need for complex external networks, directly supporting high-density radio architectures such as massive MIMO and outdoor small cell platforms.

Thermal management emerges as a primary consideration in power amplifier reliability. The module’s exposed backside thermal pad, set within the HLQFN mechanical outline, is optimized for rapid heat transfer into system PCBs. Measured under real deployment conditions, the structure enables consistent operation up to 125°C case temperature, with empirical results demonstrating stable gain and output power—gain drift measured at just 0.033 dB/°C and output power at 0.018 dB/°C across the full –40°C to +105°C industrial range. This minimizes calibration requirements and ensures transceiver output constancy, even in harsh outdoor deployments.

The supply and bias network design further exemplifies attention to integration efficiency. Gate-source threshold voltages are tuned for consistent turn-on around 1.1 V, while distributed gate biasing from 1.6 V up to 5.7 V is readily set through external reference resistors. With a recommended VDD up to 32 V (28 V typical in evaluation), the design supports common telecom power planes, streamlining base station integration without compromise on saturated power output. The module’s compatibility with advanced PCB materials, such as RO4350B, enhances RF performance floor and thermal handling, with board-level reference layouts facilitating efficient EMI suppression and optimal device mounting.

ESD robustness aligns with industrial assembly requirements, as the AFSC5G26D37 demonstrates resilience to both HBM Class 1B and CDM Class C3 standards. In-field experience confirms that following reference layout guidance in conjunction with specified ferrite bead and bypass networks successfully mitigates susceptibility to both static discharge and RF cross-coupling, securing module longevity under high-volume manufacturing and operational stress.

From a system integration perspective, the cohesive electrical grounding and matched interface structure support seamless array interconnection for multi-channel radio heads. Application-level testing in pre-production 5G and LTE infrastructure confirms that ACPR and IM3 performance consistently exceed –27 dBc and –25 dBc, respectively, even under high crest factor conditions. This supports rigorous spectrum compliance and limits the need for envelope tracking or complex digital predistortion in many common deployment scenarios. The mature ecosystem of application support—including validated reference designs, comprehensive electrical characterization, and well-documented thermal ratings—reduces time-to-market and de-risks large-scale rollout.

A key perspective implicit in practical deployment is the direct correlation between integrated power amplifier linearity and system-level OPEX reduction. By constraining gain/power drift over temperature and sustaining output efficiency under real-world modulated signals, the AFSC5G26D37 addresses two fundamental levers in next-generation wireless economics: network power consumption and carrier-grade signal quality. The architectural and packaging choices manifest in this platform reflect a nuanced balance of high-density integration, robust environmental tolerance, and signal fidelity, underpinning reliable performance as mid-band spectrum forms the backbone of modern cellular buildouts.

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Catalog

1. Overview of the NXP AFSC5G26D37 Power Amplifier Module2. Target Frequency Range and Applications of AFSC5G26D373. Doherty Architecture and Integration Features4. Electrical Performance Characteristics and RF Parameters5. Thermal, Mechanical, and Reliability Data for AFSC5G26D376. Biasing and Gate Quiescent Voltage Details7. Interface, Pin Configuration, and Package Information8. Reference Circuit Design and Typical Component Specification9. Summary of Key Attributes and Deployment Scenarios10. Conclusion

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Frequently Asked Questions (FAQ)

What is the frequency range of the NXP AFSC5G26D37T2 RF amplifier?

The RF amplifier operates within the frequency range of 2.496GHz to 2.69GHz, ideal for 5G and LTE applications.

Is the NXP AFSC5G26D37T2 suitable for 5G and LTE communication systems?

Yes, this RF amplifier is specifically designed for 5G and LTE frequency bands, providing high gain and reliable performance.

What are the packaging and mounting options for this RF amplifier IC?

The amplifier comes in a tape & reel packaging with a surface mount 26-HLQFN package, suitable for automated assembly processes.

What are the power supply voltage and typical gain for this RF amplifier?

It supports a supply voltage range from 0V to 32V and offers a typical gain of 28.3dB, suitable for high-performance RF applications.

Is the NXP AFSC5G26D37T2 RF amplifier compliant with RoHS standards and suitable for industrial use?

Yes, this RF amplifier is RoHS 3 compliant, making it environmentally friendly and suitable for industrial and consumer applications.

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