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Analog Devices Inc. 110127-HMC546MS8G
- Part No.:
- 110127-HMC546MS8G
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
110127-HMC546MS8G.pdf
- Description:
- BOARD EVAL HMC546MS8GE 1843MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:2,501
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Product details
Overview
HMC546MS8G from Analog Devices is a GaAs MMIC SPDT T/R switch in MSOP-8EP package, designed for high-power transmit-receive paths in RF front-ends. It delivers +40 dBm input P0.1dB on Tx, 0.4 dB typical insertion loss (Tx–RFC), and failsafe operation that defaults to Tx path when unpowered - enabling LNA protection and cellular booster applications up to 2.2 GHz.
For engineers reviewing the HMC546MS8G datasheet, HMC546MS8G pinout, HMC546MS8G application, or HMC546MS8G equivalent, key selection criteria include its 20W RF handling capability, +65 dBm IIP3 at Vctl = 0/+3 V, failsafe topology, and compatibility with 0.2–2.2 GHz bands including 915 MHz, 1843 MHz, and 2140 MHz cellular/PMR frequencies.
Technical Context
The HMC546MS8G implements a monolithic GaAs pHEMT-based SPDT switch with integrated DC blocking and failsafe biasing. Its control logic uses positive voltage (0/+3 V or 0/+8 V) to select RFC↔Tx or RFC↔Rx paths, with tON/tOFF ≤ 102 ns and tRISE/tFALL ≤ 21 ns.
Thermal design supports continuous operation at +85°C ambient, with 54 °C/W thermal resistance on Tx port and 1.12 W max dissipated power. DC blocking capacitors are mandatory at RFC, Tx, and Rx ports; external ACG capacitor and Vdd decoupling are required per application circuit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 0.2–2.2 GHz - covers cellular (869–960 MHz), PCS (1843–2140 MHz), and WiMAX (2.11–2.17 GHz) bands |
| Insertion Loss (Tx–RFC) | 0.4 dB typ - enables low-loss transmit path critical for PA output coupling |
| IIP3 (Tx) | +65 dBm @ Vctl = 0/+3 V - ensures minimal intermodulation distortion in multi-carrier base stations |
| P0.1dB (Tx) | +40 dBm - supports 10 W CW RF input without compression, suitable for high-power boosters |
| Isolation (RFC–Rx) | 33 dB typ - prevents transmit leakage into receive chain during active transmission |
| Failsafe State | RFC→Tx enabled when unpowered - protects downstream LNA during power loss or control failure |
| Control Voltage | 0/+3 V or 0/+8 V - compatible with standard CMOS/TTL logic and flexible supply rail design |
Pinout & Package
Package: 8-lead Mini Small Outline Package with Exposed Pad (MSOP-8EP, JEDEC MO-187-AA-T), RoHS-compliant, MSL3, 100% matte Sn finish. Exposed paddle must be soldered to PCB ground for thermal and RF performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Tx) | Transmit RF port | DC-coupled 50 Ω RF output; handles +40 dBm CW; requires DC blocking capacitor |
| 2, 7 (GND) | RF ground terminals | Must connect directly to low-inductance PCB ground plane; critical for isolation and thermal dissipation |
| 3 (Vctl) | Control voltage input | Logic-select pin: 0 V → RFC→Rx; Vdd → RFC→Tx; ±0.2 V tolerance |
| 4 (ACG) | Analog control ground | Requires external capacitor to ground (e.g., 100 nF); stabilizes internal bias network |
| 5 (Rx) | Receive RF port | DC-coupled 50 Ω RF input; +21 dBm P0.1dB; requires DC blocking capacitor |
| 6 (Vdd) | Positive supply | +3 V to +8 V DC; supplies internal bias; decoupling capacitor mandatory |
| 8 (RFC) | Common RF port | DC-coupled 50 Ω antenna interface; shared path between Tx and Rx arms |
Key Features
| Feature | Design Value |
|---|---|
| Failsafe Tx default | Ensures RFC→Tx continuity during power loss - eliminates need for backup bias circuitry in critical comms systems |
| +40 dBm Tx P0.1dB | Supports 10 W RF power handling without compression, enabling use in macro-cell boosters and PMR repeaters |
| +65 dBm Tx IIP3 | Minimizes third-order intermodulation in dense signal environments like urban cellular infrastructure |
| 0.4 dB Tx insertion loss | Reduces PA output loss and improves system EIRP efficiency in battery-constrained telematics modules |
| 21 ns switching speed | Enables fast TDD frame transitions in LTE/WiMAX base stations and time-sliced PMR protocols |
Applications
| Cellular Booster Front-End | LNA Protection Circuit |
|---|---|
|
Use Scenario: High-gain bidirectional amplifier in rural cellular coverage extension systems operating at 869–960 MHz and 1843–2140 MHz. IC Role / Device Role / Timing Role: SPDT T/R switch routing antenna signal between PA output and LNA input, with failsafe default to Tx path during control failure. Use Value: +40 dBm P0.1dB prevents PA saturation; 0.4 dB Tx loss preserves EIRP; +65 dBm IIP3 maintains adjacent-channel rejection under multi-tone loading. |
Use Scenario: Receive path protection in public safety handsets and automotive telematics units exposed to high-power TX bursts. IC Role / Device Role / Timing Role: Failsafe switch placed between antenna and LNA, automatically isolating LNA from TX energy when power is lost or control fails. Use Value: Eliminates need for external fail-safe diodes or relays; 33 dB RFC–Rx isolation prevents LNA damage; 21 ns switching avoids RX desensitization during TDD guard intervals. |
| WiMAX/WiBro Base Station | Private Mobile Radio (PMR) Transceiver |
|
Use Scenario: Dual-band (2.11–2.17 GHz and 2.5–2.7 GHz) fixed wireless access node requiring high-linearity T/R switching. IC Role / Device Role / Timing Role: RF path selector in MIMO-capable transceiver architecture, supporting simultaneous dual-polarization TX/RX paths. Use Value: 0.4 dB Tx loss and +65 dBm IIP3 maintain ACLR compliance; 2.2 GHz bandwidth covers full WiMAX channel plan; MSOP-8EP footprint simplifies multilayer RF layout. |
Use Scenario: Portable PMR radios operating in 400–470 MHz and 800 MHz bands with stringent ESD and thermal reliability requirements. IC Role / Device Role / Timing Role: Antenna interface switch enabling half-duplex operation while protecting sensitive receiver front-end from high-power TX signals. Use Value: Class 1A ESD rating withstands field handling; -40°C to +85°C operation supports outdoor deployment; 54 °C/W thermal resistance enables compact heatsink-free design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT T/R switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Qorvo QM11036 | 0.7–3.8 GHz range; +37 dBm P0.1dB; 0.6 dB Tx loss; no failsafe mode | Higher frequency coverage but lacks failsafe default - requires external control supervision | Prefer for wideband 5G NR FR1 designs where failsafe is managed at system level |
| Skyworks SKY13370-374LF | 0.1–2.7 GHz; +34 dBm P0.1dB; 0.5 dB Tx loss; failsafe via external resistor network | Lower power handling; requires external components to emulate failsafe behavior | Choose when cost-sensitive PMR designs can accommodate added BOM and layout complexity |
Compared with QM11036 and SKY13370-374LF, the HMC546MS8G uniquely integrates true monolithic failsafe operation with +40 dBm power handling - eliminating external bias circuitry while maintaining superior linearity and thermal robustness in infrastructure-grade T/R paths.
Availability
HMC546MS8G is available at Aetrix Electronics and suitable for cellular booster front-ends, LNA protection circuits, and PMR transceivers requiring stable component supply across industrial temperature ranges and high-reliability RF environments.
Supply support for HMC546MS8G 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, serving communications, industrial, and aerospace markets since 1965.
The HMC546MS8G belongs to Analog Devices' Hittite Microwave GaAs MMIC switch product line, engineered specifically for high-power, high-linearity T/R applications in wireless infrastructure and mission-critical radio systems.
FAQ
What is the maximum continuous RF input power the HMC546MS8G can handle on the Tx port?
The HMC546MS8G supports +40 dBm (10 W) CW input power on the Tx port at +25°C ambient, with derating above +25°C per its 54 °C/W thermal resistance. Absolute maximum rating is 40 dBm at +3 V supply and 40 dBm at +5 V supply, subject to duty cycle limitations below 100%.
Does the HMC546MS8G require external DC blocking capacitors?
Yes, the HMC546MS8G requires external DC blocking capacitors at all three RF ports - RFC, Tx, and Rx - as specified in the datasheet truth table and application circuit. These capacitors prevent DC bias disruption and ensure proper 50 Ω impedance matching across the 0.2–2.2 GHz band.
How does the failsafe functionality of the HMC546MS8G operate in practice?
The HMC546MS8G defaults to RFC→Tx conduction when Vctl and Vdd are unpowered or at 0 V - providing a low-loss path that protects downstream components. This behavior is intrinsic to its GaAs pHEMT topology and requires no external components, unlike alternatives needing pull-up resistors or auxiliary bias networks.
Can the HMC546MS8G be used at 915 MHz and 2140 MHz simultaneously in the same design?
No - the HMC546MS8G is optimized per discrete tuned frequency band (e.g., 915 MHz or 2140 MHz), requiring specific external matching components (L1, L2, C1–C3) listed in the evaluation PCB table. Simultaneous multi-band operation requires separate matching networks or a broadband alternative not supported by this device.
What is the recommended PCB grounding strategy for the HMC546MS8G's exposed pad?
The exposed paddle of the HMC546MS8G must be soldered to a solid, low-impedance PCB ground plane using ≥4 thermal vias (0.3 mm diameter, spaced ≤1 mm apart) connected to inner ground layers. This ensures both thermal dissipation (1.12 W max Tx power) and RF return path integrity for pins 2 and 7.
110127-HMC546MS8G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Type:
- Switch, SPDT
- Frequency:
- 1.843GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC546MS8G
110127-HMC546MS8G FAQ
1.How can I place an order for 110127-HMC546MS8G through Aetrix?
Please submit a Request for Quotation (RFQ) for 110127-HMC546MS8G 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 110127-HMC546MS8G reliable?
The price and inventory of 110127-HMC546MS8G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 110127-HMC546MS8G is usually 5 days.
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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 110127-HMC546MS8G?
For technical support, including 110127-HMC546MS8G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 110127-HMC546MS8G requirements.
6.How does Aetrix verify that 110127-HMC546MS8G is sourced from the original manufacturer or authorized distributors?
All 110127-HMC546MS8G 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 110127-HMC546MS8G meets industry standards.
7.What is the process for return or replacement of 110127-HMC546MS8G?
All 110127-HMC546MS8G units undergo pre-shipment inspection (PSI). If there is an issue with 110127-HMC546MS8G, 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 110127-HMC546MS8G part is unused and in its original packaging.
Return procedure for 110127-HMC546MS8G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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