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Analog Devices Inc. 113979-HMC548LP3
- Part No.:
- 113979-HMC548LP3
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
113979-HMC548LP3.pdf
- Description:
- BOARD EVAL HMC548LP3E WIDEBAND
- Quantity:
- Payment:
- Shipping:
Inventory:4,053
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Product details
Overview
HMC548LP3 from Analog Devices (formerly Hittite Microwave) is a SiGe HBT MMIC low-noise amplifier optimized for GPS L1 (1575 MHz) and 1.2–3.0 GHz receiver front-ends, delivering 23 dB gain, 1.3 dB noise figure, +21 dBm output IP3, and operates from a single +3 to +5 V supply.
For engineers reviewing the HMC548LP3 datasheet, HMC548LP3 pinout, HMC548LP3 application, or HMC548LP3 equivalent, this dual-stage LNA with interstage filter access enables high-selectivity receiver designs while maintaining ultra-low noise performance in automotive telematics, GPS antenna modules, and satellite navigation systems.
Technical Context
The HMC548LP3 integrates two internally matched SiGe HBT amplifier stages in a single 3×3 mm leadless SMT package, with dedicated RFIN1/RFOUT1 and RFIN2/RFOUT2 ports enabling external bandpass filtering between stages. Its topology isolates noise figure optimization from blocking rejection requirements.
It supports DC-coupled RF inputs (pins 1 and 9) requiring external blocking capacitors, AC-coupled RF outputs (pins 4 and 12), and a single Vcc supply (pin 15) with mandatory 1000 pF and 18,000 pF bypassing. Thermal resistance is 69 °C/W junction-to-paddle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 1.2–3.0 GHz operating bandwidth; validated at 1575 MHz with GPS L1 filter. |
| Gain | 23 dB typical at 1575 MHz; stable over temperature (±0.05 dB/°C variation). |
| Noise Figure | 1.3 dB typical at 1575 MHz; critical for GPS signal acquisition sensitivity. |
| Output IP3 | +21 dBm typical at 1575 MHz; enables strong blocker rejection without pre-filter NF penalty. |
| P1dB | +11 dBm typical at 1575 MHz; defines usable linear dynamic range before compression. |
| Supply Voltage | +3 to +5 V DC; compatible with standard LDOs and battery-powered portable systems. |
| Supply Current | 21 mA at +5 V; enables low-power GPS receiver designs with high SNR. |
Pinout & Package
Package: 3×3 mm leadless surface-mount package (MSL1, Sn/Pb finish), low-stress injection-molded plastic with exposed ground paddle requiring soldering to PCB RF ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RFIN1 | DC-coupled 50 Ω input to first stage; requires external blocking capacitor. |
| 2,3,5–8,10,11,13,14,16 | GND | RF/DC ground connections; must be soldered to PCB ground plane with multiple vias. |
| 4 | RFOUT1 | AC-coupled 50 Ω output from first stage; connects to external interstage filter. |
| 9 | RFIN2 | DC-coupled 50 Ω input to second stage; receives filtered signal from pin 4. |
| 12 | RFOUT2 | AC-coupled 50 Ω final output; delivers amplified, filtered signal to mixer or ADC. |
| 15 | Vcc | +3 to +5 V power supply; requires 1000 pF and 18,000 pF bypass capacitors. |
Key Features
| Feature | Design Value |
|---|---|
| Interstage filter access | Enables insertion of bandpass filter between internal amplifier stages to reject cellular/3G blockers without degrading system noise figure. |
| No external matching required | Internally matched 50 Ω I/O simplifies layout and eliminates discrete matching networks across 1.2–3.0 GHz. |
| Single-supply operation | Operates from +3 to +5 V, reducing power management complexity in portable GPS receivers. |
| Low thermal resistance | 69 °C/W junction-to-paddle enables reliable operation at +85 °C ambient without derating. |
| ESD robustness | Class 1B HBM rating ensures handling safety during assembly and test without special precautions. |
Applications
| GPS Antenna Modules | Automotive Telematics |
|---|---|
Use Scenario: Boosting weak GNSS signals received by compact embedded antennas in vehicle-mounted units. IC Role / Device Role / Timing Role: Front-end LNA placed immediately after antenna feed to maximize signal-to-noise ratio before filtering and downconversion. Use Value: 1.3 dB noise figure preserves GPS C/N₀ integrity under multipath and low-elevation conditions, improving time-to-first-fix and position accuracy. |
Use Scenario: Signal conditioning in integrated telematics control units supporting emergency call (eCall), fleet tracking, and infotainment navigation. IC Role / Device Role / Timing Role: Dual-stage amplification with interstage filtering rejects nearby LTE/UMTS transmit leakage while preserving GPS sensitivity. Use Value: +21 dBm output IP3 prevents desensitization from co-located cellular transceivers, ensuring continuous GNSS lock during data transmission. |
| Location-Based Portables | Satellite Navigation Receivers |
Use Scenario: Enabling high-accuracy positioning in handheld devices such as survey-grade field meters and asset trackers. IC Role / Device Role / Timing Role: Low-noise, wideband amplification stage supporting multi-constellation (GPS, GLONASS, Galileo) reception from 1.2–3.0 GHz. Use Value: 23 dB gain and 1.3 dB NF enable use with small-aperture antennas while maintaining >35 dB C/N₀ in open-sky conditions. |
Use Scenario: High-reliability navigation in marine, aviation, and precision agriculture receivers requiring continuous signal integrity. IC Role / Device Role / Timing Role: Temperature-stable LNA (±0.05 dB/°C gain drift) ensuring consistent RF performance across -40°C to +85°C operating range. Use Value: Stable 1.3 dB NF and 23 dB gain over full temperature range eliminate recalibration needs and support deterministic timing error budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC548LP3E | RoHS-compliant version with 100% matte tin lead finish and MSL1 rating up to 260 °C peak reflow. | Identical RF performance and pinout; selected when lead-free assembly is mandated. | Drop-in replacement for HMC548LP3 in RoHS-compliant manufacturing flows. |
| QPL9547 | Single-stage GaAs pHEMT LNA; 0.65 dB NF at 1575 MHz, 18.5 dB gain, +17.5 dBm IP3, +3.3 V supply. | Lacks interstage filter access; suited for space-constrained designs where external filtering is impractical. | Preferred when board area is limited and moderate IP3 suffices; not suitable for high-blocker environments. |
Compared with HMC548LP3, the HMC548LP3E offers identical RF specifications with RoHS compliance, while the QPL9547 trades interstage flexibility for smaller footprint and lower supply voltage - making it viable only where blocker rejection is less critical than size or power.
Availability
HMC548LP3 is available at Aetrix Electronics and suitable for GPS antenna modules, automotive telematics units, and location-based portable electronics requiring stable component supply and long-term obsolescence management.
Supply support for HMC548LP3 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 acquired Hittite Microwave in 2014 and maintains its high-frequency RF product portfolio, specializing in microwave, millimeter-wave, and RF ICs for communications, defense, and instrumentation.
The HMC548LP3 belongs to Hittite's legacy SiGe HBT MMIC amplifier family, designed specifically for high-performance, low-noise receiver front-ends in GNSS, wireless infrastructure, and aerospace applications.
FAQ
What is the recommended power supply configuration for the HMC548LP3?
The HMC548LP3 requires a single +3 to +5 V DC supply on pin 15. Two bypass capacitors - 1000 pF and 18,000 pF - must be placed as close as possible to pin 15 and connected to the ground paddle. This configuration ensures stable biasing and minimizes supply-induced noise coupling into the RF path. The HMC548LP3 draws 21 mA at +5 V, making it suitable for battery-operated GPS receivers.
Does the HMC548LP3 require external impedance matching networks?
No, the HMC548LP3 does not require external matching. Its RFIN1 (pin 1), RFOUT1 (pin 4), RFIN2 (pin 9), and RFOUT2 (pin 12) are internally matched to 50 Ω across 1.2–3.0 GHz. However, DC-blocking capacitors are mandatory on pins 1 and 9, and AC-coupling is inherent on pins 4 and 12. This eliminates discrete matching components and reduces layout sensitivity.
How does the interstage filter access benefit GPS receiver design using the HMC548LP3?
The interstage filter access - via RFOUT1 (pin 4) and RFIN2 (pin 9) - allows insertion of a bandpass filter (e.g., GPS L1 1575 MHz) between amplifier stages. This rejects out-of-band blockers (e.g., cellular 1900 MHz) before the second stage, preventing compression and intermodulation while avoiding the noise figure degradation caused by placing a high-rejection filter before the first LNA. The HMC548LP3 thus achieves both high selectivity and ultra-low NF.
What is the operating temperature range and thermal management requirement for the HMC548LP3?
The HMC548LP3 operates from -40°C to +85°C ambient. Its thermal resistance is 69 °C/W junction-to-ground paddle, and the exposed paddle must be soldered to a solid PCB ground plane with multiple thermal vias. At maximum dissipation (0.942 W at 85°C), proper grounding keeps junction temperature within the 150°C limit. Derating is 14 mW/°C above 85°C ambient.
Is the HMC548LP3 still in active production, and what is its obsolescence status?
The HMC548LP3 is marked OBSOLETE in official documentation, but Aetrix Electronics maintains active inventory and lifecycle support through authorized channels. It remains widely used in legacy GPS and telematics designs, and Aetrix provides continuity management including last-time-buy planning, cross-reference guidance, and evaluation board (113979) availability to support ongoing production and repair programs.
113979-HMC548LP3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Obsolete
- Type:
- Amplifier
- Frequency:
- 1.2GHz ~ 3GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC548LP3
113979-HMC548LP3 FAQ
1.How can I place an order for 113979-HMC548LP3 through Aetrix?
Please submit a Request for Quotation (RFQ) for 113979-HMC548LP3 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 113979-HMC548LP3 reliable?
The price and inventory of 113979-HMC548LP3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 113979-HMC548LP3 is usually 5 days.
3.What payment methods are accepted for 113979-HMC548LP3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 113979-HMC548LP3 transactions.
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4.How is shipping managed for 113979-HMC548LP3?
113979-HMC548LP3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 113979-HMC548LP3 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 113979-HMC548LP3?
For technical support, including 113979-HMC548LP3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 113979-HMC548LP3 requirements.
6.How does Aetrix verify that 113979-HMC548LP3 is sourced from the original manufacturer or authorized distributors?
All 113979-HMC548LP3 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 113979-HMC548LP3 meets industry standards.
7.What is the process for return or replacement of 113979-HMC548LP3?
All 113979-HMC548LP3 units undergo pre-shipment inspection (PSI). If there is an issue with 113979-HMC548LP3, 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 113979-HMC548LP3 part is unused and in its original packaging.
Return procedure for 113979-HMC548LP3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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