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Analog Devices Inc. ADRF5549BCPZN-R7
- Part No.:
- ADRF5549BCPZN-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Front End (LNA + PA)
- Package:
- 40-VFQFN Exposed Pad, CSP
- Datasheet:
-
ADRF5549BCPZN-R7.pdf
- Description:
- 1.8 - 2.8GHZ LNA + 40W SPDT, DUA
- Quantity:
- Payment:
- Shipping:
Inventory:1,659
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Product details
Overview
ADRF5549BCPZN-R7 from Analog Devices is a dual-channel, integrated RF front-end multichip module for TDD wireless infrastructure, featuring cascaded two-stage LNAs and high-power silicon SPDT switches per channel, 35 dB high-gain mode, 1.4 dB noise figure at 2.3 GHz, and 0.6 dB transmit insertion loss - deployed in massive MIMO active antenna systems.
For engineers reviewing the ADRF5549BCPZN-R7 datasheet, ADRF5549BCPZN-R7 pinout, ADRF5549BCPZN-R7 application, or ADRF5549BCPZN-R7 equivalent, key selection criteria include channel isolation (50 dB Rx, 62 dB Tx), LTE power handling (40 dBm full-lifetime average), gain mode control (BP/ PD pins), thermal performance (θJC = 30°C/W), and LFCSP-40 package compatibility with RF PCB layout constraints.
Technical Context
The ADRF5549BCPZN-R7 implements time-division duplexing (TDD) signal routing via positive-logic SWCTRL-ChAB control, enabling dynamic switching between receive path (ANT→RxOUT) and transmit path (ANT→TERM) per channel. Its dual independent channels share no RF coupling but maintain tight isolation: 50 dB between RxOUT-ChA/RxOUT-ChB and 62 dB between TERM-ChA/TERM-ChB at 2.3 GHz.
Each channel supports three operational modes via BP-ChA/BP-ChB and PD-ChAB: high-gain (35 dB, 85 mA), low-gain (17 dB, 35 mA), and power-down (12 mA). Bias sequencing requires strict order - VDDs first, then SWCTRL, then PD/BP - to avoid latch-up or transient overstress during power-up/down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 1.8–2.8 GHz - fully covers Band 1, 3, 7, 38, 40, and 41 for global TDD LTE and 5G NR base stations. |
| High-Gain Mode Gain | 35 dB typical at 2.3 GHz - enables single-stage receiver sensitivity without external amplification in compact active antenna modules. |
| Noise Figure | 1.4 dB typical at 2.3 GHz - preserves SNR in weak-signal reception critical for uplink coverage in dense urban deployments. |
| OIP3 (High Gain) | 32 dBm typical - supports high-linearity operation under multi-carrier LTE/5G signals with minimal intermodulation distortion. |
| Insertion Loss (Tx) | 0.6 dB typical at 2.3 GHz - minimizes transmit path loss, directly improving PA efficiency and system EIRP. |
| Channel Isolation (Rx) | 50 dB typical between RxOUT-ChA and RxOUT-ChB - prevents crosstalk-induced desensitization in dual-polarized or spatially multiplexed MIMO receivers. |
| Supply Current (High Gain) | 85 mA per channel at 5 V - defines thermal load and power budget for densely packed RF front-end assemblies. |
Pinout & Package
ADRF5549BCPZN-R7 uses a RoHS-compliant 6 mm × 6 mm, 40-lead lead frame chip-scale package (LFCSP, CP-40-15) with exposed thermal pad requiring direct connection to PCB ground plane for θJC = 30°C/W performance. Pin numbering follows JEDEC MO-220-VJJD-5 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ANT-ChA / ANT-ChB | RF Input Port (Dual Channels) | Common antenna interface for TDD time-multiplexed receive/transmit; must be matched to 50 Ω with minimal trace discontinuity. |
| RxOUT-ChA / RxOUT-ChB | Receiver Output Port | Differential-capable single-ended output feeding baseband ADC or mixer; return loss >15 dB across band ensures stable LNA loading. |
| TERM-ChA / TERM-ChB | Transmit Termination Port | Connects to PA output during transmit; 62 dB isolation between TERM-ChA/TERM-ChB prevents inter-channel TX leakage. |
| SWCTRL-ChAB | Signal Path Select Control | Positive-logic input (0 V = Rx, 5 V = Tx); controls internal SPDT switch state synchronously for both channels. |
| PD-ChAB | Global Power-Down Control | Active-high shutdown of all LNA stages; reduces supply current to 12 mA while maintaining switch functionality. |
| BP-ChA / BP-ChB | LNA Bypass Control | Active-high bypasses second LNA stage per channel, reducing gain to 17 dB and current to 35 mA for dynamic range optimization. |
| VDD1-ChA/VDD1-ChB VDD2-ChA/VDD2-ChB SWVDD-ChAB | Independent Supply Rails | Separate bias for LNA Stage 1, Stage 2, and switch enables independent rail optimization and fault containment. |
| GND (32 pins) | RF/DC Ground Reference | Multiple dedicated ground pins plus exposed pad ensure low-inductance return paths for RF, analog, and digital domains. |
| NIC (7 pins) | Not Internally Connected | Must be tied to RF ground on PCB to minimize parasitic coupling and improve EMI immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel integration | Eliminates discrete LNA + switch + matching network per channel, reducing PCB area by >40% vs. discrete solutions. |
| On-chip bias and matching | Removes need for external DC blocking caps, RF chokes, and impedance-matching networks - simplifies layout and improves repeatability. |
| Three-mode LNA operation | Enables real-time dynamic range adaptation: high-gain for weak signals, low-gain for strong interferers, power-down for idle periods. |
| High LTE power handling | Supports 40 dBm LTE average power (9 dB PAR) continuously at TCASE = 105°C - meets long-term reliability requirements for outdoor macro cells. |
| Thermal-aware packaging | Exposed pad + 32 GND pins enable efficient heat extraction; θJC = 30°C/W allows operation up to +105°C case temperature without derating. |
Applications
| Massive MIMO Active Antenna System | TDD-Based Small Cell Base Station |
|---|---|
Use Scenario: 64T64R active antenna unit with integrated transceivers and beamforming ICs operating in 2.6 GHz TDD band. IC Role / Device Role / Timing Role: Dual-channel RF front end providing simultaneous receive amplification and transmit termination for polarized antenna elements. Use Value: 50 dB Rx channel isolation prevents adjacent-element desensitization; 35 dB gain enables direct connection to 14-bit ADC without intermediate gain stage. | Use Scenario: Indoor/outdoor small cell deploying 2×2 or 4×4 MIMO in Band 40 (2.3 GHz) with tight thermal envelope. IC Role / Device Role / Timing Role: Compact front-end solution managing antenna switching, LNA gain control, and PA protection during TDD burst transitions. Use Value: 0.6 dB Tx insertion loss maximizes PA efficiency; 40 dBm LTE power rating eliminates need for external circulator or limiter. |
| 5G NR Sub-6 GHz Distributed Unit (DU) | Wireless Backhaul Transceiver Module |
Use Scenario: Centralized RAN architecture where DU processes baseband and interfaces to remote radio units via CPRI/eCPRI. IC Role / Device Role / Timing Role: Front-end interface between DU's DAC/ADC and antenna array, supporting configurable gain modes for varying link budgets. Use Value: BP-ChA/BP-ChB pins allow real-time gain adjustment via FPGA control, optimizing dynamic range for UL/DL traffic asymmetry. | Use Scenario: Point-to-point 2.5 Gbps backhaul link using 2.5 GHz TDD spectrum with stringent EVM and ACLR requirements. IC Role / Device Role / Timing Role: Dual-path front end delivering high linearity (32 dBm OIP3) and low noise (1.4 dB NF) for both transmit and receive chains. Use Value: 32 dBm OIP3 ensures <−50 dBc ACLR at 10 MHz offset; 1.4 dB NF maintains 28 dB SINAD at −95 dBm input for robust low-SNR links. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel RF front-end applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Qorvo QM11028 | Single-channel, 1.8–2.7 GHz, 34 dB gain, 1.5 dB NF, 0.7 dB IL; requires dual devices for same channel count. | Higher board area and BOM count; lacks integrated dual-channel isolation control. | Select when needing higher peak power handling (46 dBm LTE) and lower cost per channel in non-space-constrained designs. |
| Skyworks SKY66312-398 | Integrated 2.3–2.7 GHz front end with 33 dB gain, 1.6 dB NF, 0.8 dB IL, but only single-channel with no TERM port - requires external switch. | Needs external SPDT and matching components; less isolation control granularity than ADRF5549BCPZN-R7. | Select when prioritizing ultra-low quiescent current (18 mA high-gain) and simplified biasing over dual-channel integration. |
Compared with QM11028 and SKY66312-398, the ADRF5549BCPZN-R7 delivers true dual-channel co-location with 50/62 dB isolation, eliminating inter-channel coupling risks in massive MIMO arrays - a design advantage not achievable with discrete or single-channel alternatives.
Availability
ADRF5549BCPZN-R7 is available at Aetrix Electronics and suitable for wireless infrastructure, massive MIMO active antenna systems, and TDD-based communication systems requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for ADRF5549BCPZN-R7 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 global leader in high-performance analog, mixed-signal, and RF ICs, serving communications, industrial, automotive, and aerospace markets with precision signal processing solutions.
The ADRF5549BCPZN-R7 belongs to Analog Devices' RF front-end portfolio designed specifically for TDD wireless infrastructure - emphasizing integration, thermal robustness, and dynamic gain control to simplify active antenna development.
FAQ
What is the recommended power-up sequence for ADRF5549BCPZN-R7?
The ADRF5549BCPZN-R7 requires strict bias sequencing: (1) connect GND, (2) power VDD1-ChA/VDD2-ChA/VDD1-ChB/VDD2-ChB/SWVDD-ChAB, (3) apply SWCTRL-ChAB, (4) assert PD-ChAB, (5) set BP-ChA/BP-ChB, then (6) apply RF input. Reversing this order risks latch-up or transient overstress. This sequence ensures stable LNA startup and avoids switch misconfiguration during voltage ramp-up.
Does ADRF5549BCPZN-R7 support independent gain control per channel?
No - the ADRF5549BCPZN-R7 provides synchronized gain control across both channels. BP-ChA and BP-ChB are separate pins but operate identically: setting either high bypasses its respective second-stage LNA, yielding 17 dB gain for that channel. However, high-gain mode (both BP pins low) and low-gain mode (both BP pins high) are the only supported configurations; asymmetric gain states are not characterized or guaranteed.
What is the maximum RF input power ADRF5549BCPZN-R7 can handle in receive mode?
In receive operation, the ADRF5549BCPZN-R7 supports an RF input power of 15 dBm (LTE average, 9 dB PAR) at ANT-ChA and ANT-ChB under recommended operating conditions. Exceeding this level risks compression, increased noise figure degradation, or permanent damage - especially at elevated temperatures. The absolute maximum RF input is 25 dBm (peak), but sustained operation above 15 dBm is not advised without external attenuation or AGC loop coordination.
How does thermal performance of ADRF5549BCPZN-R7 vary between operating modes?
The ADRF5549BCPZN-R7 exhibits mode-dependent thermal resistance: θJC = 30°C/W in high/low gain modes (due to active LNA dissipation), but drops to 8.7°C/W in power-down mode (only switch bias remains active). At TCASE = 105°C, junction temperature reaches 132°C in receive mode and 134°C in transmit mode - confirming the exposed pad and 32 GND connections are essential for reliable operation in outdoor macro base stations.
Can ADRF5549BCPZN-R7 be used in FDD systems?
No - the ADRF5549BCPZN-R7 is explicitly designed for time-division duplexing (TDD) architectures. Its functional block diagram, truth tables, and specification tables assume alternating Rx/Tx time slots controlled by SWCTRL-ChAB. It lacks simultaneous Rx/Tx capability, independent Tx/Rx ports, or harmonic filtering required for FDD. Using it in FDD would result in uncontrolled signal coupling, degraded isolation, and potential damage due to concurrent high-power transmit and sensitive receive paths.
ADRF5549BCPZN-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- RF Type:
- General Purpose
- Frequency:
- 1.8GHz ~ 2.8GHz
- Features:
- SPDT
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 40-LFCSP-VQ (6x6)
ADRF5549BCPZN-R7 FAQ
1.How can I place an order for ADRF5549BCPZN-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADRF5549BCPZN-R7 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 ADRF5549BCPZN-R7 reliable?
The price and inventory of ADRF5549BCPZN-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADRF5549BCPZN-R7 is usually 5 days.
3.What payment methods are accepted for ADRF5549BCPZN-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADRF5549BCPZN-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADRF5549BCPZN-R7?
ADRF5549BCPZN-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADRF5549BCPZN-R7 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 ADRF5549BCPZN-R7?
For technical support, including ADRF5549BCPZN-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADRF5549BCPZN-R7 requirements.
6.How does Aetrix verify that ADRF5549BCPZN-R7 is sourced from the original manufacturer or authorized distributors?
All ADRF5549BCPZN-R7 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 ADRF5549BCPZN-R7 meets industry standards.
7.What is the process for return or replacement of ADRF5549BCPZN-R7?
All ADRF5549BCPZN-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADRF5549BCPZN-R7, 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 ADRF5549BCPZN-R7 part is unused and in its original packaging.
Return procedure for ADRF5549BCPZN-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADRF5549BCPZN-R7 Tags
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