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Analog Devices Inc. HMC546MS8GE
- Part No.:
- HMC546MS8GE
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Switches
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
HMC546MS8GE.pdf
- Description:
- IC RF SWITCH SPDT 2.2GHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,893
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Product details
Overview
HMC546MS8GE from Analog Devices is a GaAs MMIC SPDT transmit-receive switch in an 8-lead MSOP-EP package, designed for RF front-end signal routing in cellular, PMR, and automotive telematics systems. It delivers +40 dBm P0.1dB on Tx, 0.4 dB typical insertion loss (Tx–RFC), 25–40 dB isolation, and failsafe operation that defaults to Tx path when unpowered.
For engineers reviewing the HMC546MS8GE datasheet, HMC546MS8GE pinout, HMC546MS8GE application, or HMC546MS8GE equivalent, key selection criteria include its 0.2–2.2 GHz bandwidth, +65 dBm IIP3 at Vctl = 0/+3 V, positive 0/+3 V to 0/+8 V control logic, thermal resistance of 54 °C/W on Tx, and RoHS-compliant MSOP-EP package with exposed pad.
Technical Context
The HMC546MS8GE implements a monolithic GaAs pHEMT-based SPDT T/R switch architecture with integrated failsafe biasing, enabling automatic RFC-to-Tx continuity during power loss. Its DC-coupled 50 Ω ports (RFC, Tx, Rx) require external blocking capacitors, and it operates with single-supply Vdd = +3 V to +8 V and control voltage Vctl referenced to ground.
Switching is governed by a truth table where Vctl = 0 V disables Tx and enables Rx, while Vctl = Vdd enables Tx and disables Rx. The device supports high-linearity operation up to +40 dBm CW input on Tx, with thermal design dependent on the exposed paddle's solder connection to PCB ground for effective heat dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 0.2–2.2 GHz - Full-band operation without retuning; validated across eight discrete bands from 220 MHz to 2140 MHz. |
| Insertion Loss (Tx–RFC) | 0.4 dB typ - Enables minimal RF path attenuation in high-power transmit mode, preserving PA efficiency. |
| IIP3 (Tx) | +65 dBm @ Vctl = 0/+3 V - Supports high-dynamic-range operation in multi-tone LTE/WiMAX environments. |
| P0.1dB (Tx) | +40 dBm - Handles 10 W peak RF power without compression; critical for booster and base station front-ends. |
| Failsafe State | RFC → Tx enabled when unpowered - Ensures default transmit path integrity during control failure or brownout. |
| Control Logic | Positive 0/+3 V to 0/+8 V - Compatible with standard CMOS/TTL drivers; no negative voltage or level-shifting required. |
| Thermal Resistance (Tx) | 54 °C/W - Requires exposed-pad soldering to internal ground plane for safe 1.12 W continuous dissipation. |
Pinout & Package
Package: 8-Lead Mini Small Outline Package with Exposed Pad (Mini_SO_EP, JEDEC MO-187-AA-T), RoHS-compliant, MSL3, 100% matte Sn finish, marking "H546".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Tx) | Transmit RF output | DC-coupled 50 Ω port; carries high-power RF output; requires external DC blocking capacitor. |
| 2, 7 (GND) | RF ground terminals | Must be low-inductance connected to PCB ground plane; critical for RF return path and thermal conduction. |
| 3 (Vctl) | Control voltage input | Logic-level input defining switch state; tolerant of ±0.2 Vdc; referenced to ground. |
| 4 (ACG) | Analog common ground | Requires external capacitor to ground (e.g., 1000 pF); stabilizes internal bias network. |
| 5 (Rx) | Receive RF input | DC-coupled 50 Ω port; low-noise receive path; requires external DC blocking capacitor. |
| 6 (Vdd) | Positive supply voltage | +3 V to +8 V DC supply; powers internal GaAs circuitry; bypassing recommended near pin. |
| 8 (RFC) | Common RF port | DC-coupled 50 Ω antenna/interface port; routed to Tx (failsafe) or Rx based on Vctl state. |
Key Features
| Feature | Design Value |
|---|---|
| Failsafe Tx default | Ensures RFC→Tx continuity during power loss-eliminates need for external backup bias or watchdog circuits. |
| +40 dBm P0.1dB (Tx) | Supports 10 W-class PA output stages without gain compression; validated up to 2140 MHz. |
| +65 dBm IIP3 (Tx) | Enables clean signal handling in dense spectral environments (e.g., 3G/4G coexistence, WiBro). |
| 0.4 dB insertion loss (Tx–RFC) | Minimizes transmit path loss-directly improves EIRP and reduces PA thermal load. |
| Exposed thermal pad (Pin EP) | Enables 54 °C/W junction-to-board thermal resistance when soldered to solid copper ground plane. |
Applications
| LNA Protection in Cellular Boosters | Public Safety Handset Front-End |
|---|---|
|
Use Scenario: Placed between PA output and antenna to protect LNA during transmit bursts in bi-directional repeater systems. IC Role / Device Role / Timing Role: High-power SPDT T/R switch providing failsafe Tx path and fast RF isolation during Rx mode. Use Value: +40 dBm P0.1dB prevents compression under 10 W PA drive; 40 dB Tx–Rx isolation blocks PA leakage into sensitive LNA input. |
Use Scenario: Integrated in dual-band PMR handsets supporting 869–960 MHz and 2110–2170 MHz bands for simultaneous Tx/Rx path switching. IC Role / Device Role / Timing Role: Single-chip SPDT switch replacing discrete PIN diode solutions; controlled via baseband processor GPIO. Use Value: 0.4 dB Tx insertion loss preserves battery life; +65 dBm IIP3 maintains adjacent-channel rejection in crowded public safety spectrum. |
| Automotive Telematics Antenna Sharing | WiMAX/WiBro Base Station Front-End |
|
Use Scenario: Shared antenna interface in vehicle-mounted LTE/WiFi/GNSS modules requiring robust RF path management under vibration and temperature cycling. IC Role / Device Role / Timing Role: Failsafe T/R switch ensuring continuous Tx capability during microcontroller reset or power interruption. Use Value: -40 °C to +85 °C operating range and 54 °C/W thermal resistance enable reliable operation in under-hood environments. |
Use Scenario: Used in outdoor WiMAX CPE units operating at 2.5–2.7 GHz (tuned via external matching per band) to alternate between transmit and diversity receive paths. IC Role / Device Role / Timing Role: High-linearity GaAs MMIC switch enabling >20 MHz channel bandwidth without distortion-induced EVM degradation. Use Value: +65 dBm IIP3 and <0.8 dB Rx insertion loss maintain ACLR >45 dB and EVM <3% in 64-QAM OFDMA transmission. |
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 | 0.7–2.7 GHz range; +38 dBm P0.1dB; 0.5 dB Tx loss; no failsafe default. | Requires active control for all states; unsuitable for fail-operational systems. | Select when wider frequency coverage is needed and failsafe is not required. |
| Skyworks SKY13373-374LF | 0.1–2.7 GHz; +36 dBm P0.1dB; 0.6 dB Tx loss; +55 dBm IIP3; 3.3 V only control. | Lower linearity and power handling; optimized for cost-sensitive consumer handsets. | Select for lower-tier infrastructure or portable devices where +40 dBm headroom is unnecessary. |
Compared with QM11036 and SKY13373-374LF, the HMC546MS8GE uniquely combines failsafe Tx default, +40 dBm P0.1dB, and +65 dBm IIP3 in a thermally enhanced MSOP-EP package-making it optimal for mission-critical cellular boosters and automotive telematics where reliability and linearity are non-negotiable.
Availability
HMC546MS8GE is available at Aetrix Electronics and suitable for cellular infrastructure, public safety radio, and automotive telematics applications requiring stable component supply, long-term lifecycle support, and traceable GaAs MMIC sourcing.
Supply support for HMC546MS8GE 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 semiconductor leader specializing in high-performance analog, mixed-signal, and RF technologies for precision signal processing and connectivity.
The HMC546MS8GE belongs to Analog Devices' Hittite Microwave GaAs MMIC switch product line, engineered for high-power, high-linearity RF front-end switching in wireless infrastructure and mobile communications equipment.
FAQ
What is the absolute maximum CW input power rating for the HMC546MS8GE on the Tx port?
The HMC546MS8GE has an absolute maximum CW input power rating of +40 dBm on the Tx port at +25°C ambient, with derating required above 25°C. This corresponds to 10 W of continuous RF power. Operation above this level risks permanent damage, especially under hot-switching conditions (>+24 dBm). Thermal performance depends critically on proper soldering of the exposed pad to a thermally robust PCB ground plane.
Does the HMC546MS8GE require external DC blocking capacitors, and if so, where?
Yes, the HMC546MS8GE requires external DC blocking capacitors at all three RF ports: RFC, Tx, and Rx. These are mandatory because all RF pins are DC-coupled and internally biased. Typical values range from 1.2 pF to 150 pF depending on operating frequency (e.g., 1.2 pF at 2140 MHz, 150 pF at 220 MHz), as specified in the application circuit table. Failure to install them may cause bias disruption or damage.
How does the failsafe functionality of the HMC546MS8GE operate, and what is its practical impact?
The HMC546MS8GE's failsafe functionality ensures that when Vctl and Vdd are unpowered (0 V), the RFC-to-Tx path remains closed while RFC-to-Rx is open-defaulting to transmit mode. This behavior eliminates single-point failure risk in systems where uninterrupted Tx capability is critical, such as emergency communication handsets or vehicle telematics during microcontroller reset. No external components are needed to implement this behavior.
What is the recommended PCB layout practice for thermal management of the HMC546MS8GE?
Effective thermal management of the HMC546MS8GE requires soldering the exposed paddle (Pin EP) to a large, multilayer PCB ground plane using ≥9 solder vias (0.3 mm diameter, spaced ≤1 mm apart) connecting to inner ground layers. This achieves the specified 54 °C/W thermal resistance for the Tx path. Inadequate paddle connection results in junction temperature rise beyond 150°C, triggering permanent degradation or failure under full-power operation.
Can the HMC546MS8GE be used at 2.5 GHz, and what performance trade-offs apply?
The HMC546MS8GE is characterized and guaranteed from 0.2–2.2 GHz; operation at 2.5 GHz falls outside its validated range. While some customers report marginal functionality at 2.5 GHz with external tuning, datasheet specifications-including insertion loss (≥0.7 dB), isolation (<20 dB), and IIP3 (≤+55 dBm)-are not assured. For 2.5 GHz WiMAX/WiFi applications, Analog Devices recommends the pin-compatible HMC547MS8GE, which extends coverage to 2.7 GHz with matched performance.
HMC546MS8GE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Strip
- Product Status:
- Active
- RF Type:
- WiMAX / WiBro
- Topology:
- Reflective
- Circuit:
- SPDT
- Frequency Range:
- 200MHz ~ 2.2GHz
- Isolation:
- 30dB
- Insertion Loss:
- 1.1dB
- Test Frequency:
- 2.17GHz
- P1dB:
- -
- IIP3:
- 43dBm
- Features:
- -
- Impedance:
- 50Ohm
- Voltage - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP-EP
HMC546MS8GE FAQ
1.How can I place an order for HMC546MS8GE through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC546MS8GE 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 HMC546MS8GE reliable?
The price and inventory of HMC546MS8GE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC546MS8GE is usually 5 days.
3.What payment methods are accepted for HMC546MS8GE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC546MS8GE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC546MS8GE?
HMC546MS8GE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC546MS8GE 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 HMC546MS8GE?
For technical support, including HMC546MS8GE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC546MS8GE requirements.
6.How does Aetrix verify that HMC546MS8GE is sourced from the original manufacturer or authorized distributors?
All HMC546MS8GE 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 HMC546MS8GE meets industry standards.
7.What is the process for return or replacement of HMC546MS8GE?
All HMC546MS8GE units undergo pre-shipment inspection (PSI). If there is an issue with HMC546MS8GE, 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 HMC546MS8GE part is unused and in its original packaging.
Return procedure for HMC546MS8GE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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