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Analog Devices Inc. 110129-HMC546MS8G
- Part No.:
- 110129-HMC546MS8G
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
110129-HMC546MS8G.pdf
- Description:
- BOARD EVAL HMC546MS8GE 2140MHZ
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
HMC546MS8G from Analog Devices is a GaAs MMIC SPDT T/R switch in an 8-lead MSOP-EP package, designed for high-power transmit-receive signal routing 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 robust LNA protection in cellular infrastructure and automotive telematics.
For engineers reviewing the HMC546MS8G datasheet, HMC546MS8G pinout, HMC546MS8G application, or HMC546MS8G equivalent, this page provides verified specifications, thermal and RF performance across 220–2140 MHz bands, failsafe control behavior, absolute maximum ratings, and evaluation board support for rapid integration into high-linearity transceiver designs.
Technical Context
The HMC546MS8G implements a monolithic GaAs pHEMT-based SPDT switch with integrated failsafe biasing, enabling automatic RFC-to-Tx continuity at power-off. Its architecture supports positive-only control (0/+3V to 0/+8V) and requires external DC blocking capacitors at all RF ports (RFC, Tx, Rx) and an ACG capacitor to ground.
Thermal design is critical: Tx channel thermal resistance is 54 °C/W, with max continuous dissipated power of 1.12 W; Rx channel is limited to 73 mW (at +3V) due to higher 68 °C/W thermal resistance. Operation is specified from –40°C to +85°C, with ESD rating Class 1A (HBM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 200–2200 MHz - fully characterized across eight discrete bands (220, 457, 785, 915, 1843, 1960, 2015, 2140 MHz) with matched performance. |
| Insertion Loss (Tx–RFC) | 0.4 dB typical - enables minimal RF path attenuation in high-efficiency transmit chains up to 10 W CW. |
| IIP3 (Tx) | +65 dBm typical at +3 V control - ensures low intermodulation distortion in multi-carrier cellular/PCS base stations. |
| P0.1dB (Tx) | +40 dBm typical - supports 10 W linear output without compression in booster and repeater applications. |
| Failsafe State | RFC→Tx path active at Vctl = 0 V - eliminates need for backup power or latch circuitry in safety-critical telematics. |
| Control Voltage | 0/+3 V to 0/+8 V logic-compatible - allows direct interface with FPGA GPIO or PMIC sequencers without level-shifting. |
| Package | 8-Lead Mini SO with Exposed Pad (RH-8-1) - provides low-inductance RF grounding and 54 °C/W thermal path for Tx channel. |
Pinout & Package
8-Lead Mini Small Outline Package with Exposed Pad (JEDEC MO-187-AA-T, RH-8-1), 3.0 × 3.0 × 0.95 mm body, thermally enhanced exposed paddle soldered to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Tx) | Transmit RF Output | DC-coupled 50 Ω port; handles +40 dBm P0.1dB; must use DC blocking capacitor per layout guidelines. |
| 2, 7 (GND) | RF Ground Terminals | Low-inductance connection points to PCB ground plane; required for RF return path integrity and thermal conduction. |
| 3 (Vctl) | Logic Control Input | Positive-only TTL/CMOS-compatible input; 0 V selects RFC→Rx, Vdd selects RFC→Tx; ±0.2 V tolerance. |
| 4 (ACG) | Analog Common-Ground Node | Requires external capacitor to ground (e.g., 100 nF); stabilizes internal bias network and suppresses supply noise. |
| 5 (Rx) | Receive RF Input | DC-coupled 50 Ω port; rated for +24 dBm max CW input; isolation >25 dB from Tx path across full band. |
| 6 (Vdd) | Supply Voltage Input | +3 V to +8 V DC supply; powers internal driver and switch core; decoupling capacitor mandatory near pin. |
| 8 (RFC) | Common RF Port | Antenna or transceiver interface; bidirectional path routed to Tx or Rx based on Vctl; DC-coupled, 50 Ω matched. |
Key Features
| Feature | Design Value |
|---|---|
| Failsafe Tx default | Ensures antenna remains connected to transmitter during power loss - critical for emergency comms and automotive ADAS fail-operational requirements. |
| +40 dBm P0.1dB (Tx) | Supports 10 W linear transmit power without gain compression in cellular boosters and private mobile radio handsets. |
| +65 dBm IIP3 (Tx) | Maintains signal fidelity under two-tone +19 dBm conditions - essential for wideband LTE/WiMAX base station linearity. |
| 0.4 dB insertion loss (Tx–RFC) | Minimizes system noise figure degradation and preserves PA efficiency in compact front-end modules. |
| 8-lead MSOP-EP package | Enables high-density RF layout with low parasitic inductance; exposed pad improves thermal dissipation and grounding. |
Applications
| LNA Protection in Cellular Repeaters | WiMAX/WiBro Base Station Front-End |
|---|---|
|
Use Scenario: Protecting low-noise amplifier inputs from high-power transmit leakage in bi-directional repeater systems. IC Role / Device Role / Timing Role: SPDT T/R switch routing antenna signal between PA output and LNA input, with failsafe Tx-on state preventing damage during power interruption. Use Value: Eliminates need for external protection diodes or relays; +40 dBm P0.1dB withstand capability ensures reliability under burst transmission. |
Use Scenario: Switching between transmit and receive paths in fixed wireless access base stations operating at 2.3–2.7 GHz bands. IC Role / Device Role / Timing Role: High-linearity RF path selector enabling shared antenna architecture with <0.4 dB Tx loss and >25 dB Tx/Rx isolation. Use Value: +65 dBm IIP3 prevents adjacent-channel interference in dense OFDMA deployments; 21 ns tRISE supports fast TDD switching. |
| Automotive Telematics Antenna Sharing | Public Safety Handset RF Front-End |
|
Use Scenario: Sharing single antenna among LTE, GNSS, and V2X transceivers in vehicle infotainment and ADAS modules. IC Role / Device Role / Timing Role: Failsafe SPDT switch ensuring continuous LTE transmit path during microcontroller reset or brown-out events. Use Value: Prevents loss of emergency call connectivity; operates over –40°C to +85°C with stable 0.5 dB insertion loss variation. |
Use Scenario: Enabling compact, rugged handheld radios for first responders requiring simultaneous Tx/Rx path integrity and ESD resilience. IC Role / Device Role / Timing Role: High-power T/R switch with Class 1A HBM ESD rating and 150°C max channel temperature for reliable field operation. Use Value: Withstands +24 dBm Rx input without damage; 36 ns tOFF ensures clean channel switching during rapid PTT transitions. |
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 |
|---|---|---|---|
| HMC547MS8G | Same MSOP-EP package, but optimized for 0.1–4.0 GHz; +38 dBm P0.1dB (Tx), +62 dBm IIP3; no failsafe mode - requires active control. | Suitable for wider-band test equipment or broadband SDR where failsafe is not required. | Select when broader frequency coverage outweighs failsafe requirement and system can guarantee always-on control voltage. |
| Qorvo QM11036 | Si-based SPDT; 0.7–2.7 GHz; +36 dBm P0.1dB; 0.6 dB Tx loss; no failsafe; MSL1, 260°C reflow compatible. | Better suited for cost-sensitive consumer IoT gateways with lower power and less stringent linearity needs. | Choose for non-critical commercial applications where GaAs performance margin is unnecessary and RoHS reflow compliance is prioritized. |
Compared with HMC546MS8G, HMC547MS8G extends bandwidth but sacrifices failsafe operation and 2 dB of P0.1dB headroom, while QM11036 trades GaAs linearity and thermal robustness for silicon cost and reflow compatibility - making HMC546MS8G the only option meeting failsafe +40 dBm +65 dBm IIP3 requirements in one package.
Availability
HMC546MS8G is available at Aetrix Electronics and suitable for cellular infrastructure, automotive telematics, and public safety radio systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
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 precision instrumentation, communications, and industrial 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 front-end applications in wireless infrastructure and mission-critical mobile radios.
FAQ
What is the failsafe behavior of the HMC546MS8G?
The HMC546MS8G defaults to RFC→Tx path conduction when Vctl = 0 V and no supply is applied - ensuring antenna remains connected to the transmitter during power loss or controller reset. This behavior is intrinsic to its GaAs pHEMT topology and requires no external components. The HMC546MS8G maintains this state until Vctl rises to ≥0.8 V, at which point it switches to RFC→Rx. This makes HMC546MS8G ideal for emergency communication systems where uninterrupted transmit capability is mandated.
Can the HMC546MS8G operate at 5 V supply voltage?
Yes, the HMC546MS8G supports Vdd from +3 V to +8 V, and full specification compliance is confirmed at +5 V. At +5 V, the device achieves +40 dBm P0.1dB (Tx), 0.4 dB insertion loss, and +65 dBm IIP3 - identical to +3 V performance. The control voltage range scales accordingly: Vctl = 0/+5 V selects RFC→Rx and RFC→Tx states respectively. No derating or external circuit changes are needed when operating HMC546MS8G at +5 V.
Which evaluation board corresponds to the HMC546MS8G at 2140 MHz?
The official Analog Devices evaluation PCB for HMC546MS8G at 2140 MHz is part number 110129 - matching the prefix of the queried料号 110129-HMC546MS8G. This board uses Rogers 4350 substrate, includes SMA connectors (J1–J3), DC pins (J4–J6), and pre-tuned LC network values: C1 = 1.2 pF, L1 = 1 nH, L2 = 2.7 nH. The 110129 evaluation board validates HMC546MS8G performance across temperature and power levels per datasheet specifications.
Is DC blocking required on all RF ports of the HMC546MS8G?
Yes, DC blocking capacitors are mandatory at RFC, Tx, and Rx ports per the HMC546MS8G datasheet. All three RF ports are DC-coupled internally, so external 0402-size capacitors (e.g., 100 pF for sub-1 GHz, scaled per frequency band) must be placed in series to prevent DC shorting and ensure proper 50 Ω impedance matching. Omitting these capacitors risks bias disruption, degraded return loss, and potential damage from unintended DC paths - a requirement explicitly stated in the "Truth Table" and "Application Circuit" sections of the HMC546MS8G documentation.
What is the maximum continuous RF input power the HMC546MS8G Rx port can handle?
The HMC546MS8G Rx port is rated for +24 dBm (250 mW) continuous wave input power at +3 V supply, with derating to +29 dBm at +5 V. This limit is defined by thermal constraints: Rx channel thermal resistance is 68 °C/W, and max continuous dissipated power is 73 mW at +3 V. Exceeding +24 dBm risks permanent degradation due to junction overheating - especially under sustained duty cycle. The HMC546MS8G datasheet explicitly prohibits "hot switching" above +24 dBm and requires careful thermal management in high-dynamic-range receiver front-ends.
110129-HMC546MS8G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Not For New Designs
- Type:
- Switch, SPDT
- Frequency:
- 2.14GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC546MS8G
110129-HMC546MS8G FAQ
1.How can I place an order for 110129-HMC546MS8G through Aetrix?
Please submit a Request for Quotation (RFQ) for 110129-HMC546MS8G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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Once your 110129-HMC546MS8G 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 110129-HMC546MS8G?
For technical support, including 110129-HMC546MS8G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 110129-HMC546MS8G requirements.
6.How does Aetrix verify that 110129-HMC546MS8G is sourced from the original manufacturer or authorized distributors?
All 110129-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 110129-HMC546MS8G meets industry standards.
7.What is the process for return or replacement of 110129-HMC546MS8G?
All 110129-HMC546MS8G units undergo pre-shipment inspection (PSI). If there is an issue with 110129-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 110129-HMC546MS8G part is unused and in its original packaging.
Return procedure for 110129-HMC546MS8G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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