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Analog Devices Inc. HMC557LC4TR-R5
- Part No.:
- HMC557LC4TR-R5
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 24-TFCQFN Exposed Pad
- Datasheet:
-
HMC557LC4TR-R5.pdf
- Description:
- IC MIXER FUNDAMENTAL 24SMD
- Quantity:
- Payment:
- Shipping:
Inventory:1,989
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Product details
Overview
HMC557LC4TR-R5 from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC passive double-balanced mixer IC designed for RF/LO frequency translation between 2.5–7.0 GHz and IF bandwidth DC–3 GHz. It delivers 7 dB typical conversion loss, 48 dB LO-to-RF isolation, and operates with +9 dBm minimum LO drive-enabling use as upconverter or downconverter in wireless infrastructure transceivers.
For engineers reviewing the HMC557LC4TR-R5 datasheet, HMC557LC4TR-R5 pinout, HMC557LC4TR-R5 application, or HMC557LC4TR-R5 equivalent, key selection criteria include its 24-lead 4×4 mm ceramic SMT package, DC-coupled 50 Ω matched ports (LO, RF, IF), no external matching requirement, and suitability for high-isolation, wide-IF-bandwidth RF front-end designs.
Technical Context
The HMC557LC4TR-R5 implements a passive double-balanced topology using integrated balun structures to achieve high LO-to-RF (48 dB typ.) and LO-to-IF (32 dB typ.) isolation. Its GaAs MESFET process enables fundamental mixing without harmonic injection or external biasing.
It supports both upconversion and downconversion modes with DC-coupled LO, RF, and IF ports-requiring only external DC blocking on IF if DC operation is not needed. The device operates across −40°C to +85°C and tolerates +25 dBm maximum RF/IF and LO input power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF/LO Frequency Range | 2.5–7.0 GHz - covers WiMAX, point-to-point radio, and test equipment bands without tuning. |
| IF Bandwidth | DC–3 GHz - supports baseband I/Q, wideband IF sampling, and zero-IF architectures. |
| Conversion Loss | 7 dB typ. - low signal attenuation preserves SNR in receiver chains and reduces transmit-stage gain requirements. |
| LO-to-RF Isolation | 48 dB typ. - minimizes LO leakage into antenna paths, easing filtering and improving spectral purity. |
| Input IP3 | 22 dBm typ. - enables handling of strong interferers in dense RF environments without compression. |
| LO Drive Sensitivity | +9 dBm min. - compatible with low-power synthesizers; eliminates need for LO buffer amplifiers. |
| Operating Temperature | −40°C to +85°C - qualified for outdoor wireless infrastructure and military-grade environmental operation. |
Pinout & Package
24-lead leadless ceramic SMT package (4×4 mm, 16 mm² body), alumina substrate, gold-over-nickel plating, MSL3 rated, with exposed ground paddle requiring solder connection to PCB RF ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5–7, 11–14, 18–24 | No Connect (N/C) | Internally unconnected; may be tied to ground without performance impact. |
| 2, 4, 8, 10, 15, 17 | Ground (GND) | RF/DC ground reference; must connect to PCB ground plane with low-inductance path. |
| 3 | LO Input | DC-coupled 50 Ω port; accepts +9 to +25 dBm LO drive; no external matching required. |
| 9 | IF Output/Input | DC-coupled 50 Ω port; supports DC–3 GHz; current-limited to ±2 mA for DC operation. |
| 16 | RF Input/Output | DC-coupled 50 Ω port; bidirectional RF path for up/downconversion; handles +25 dBm max. |
Key Features
| Feature | Design Value |
|---|---|
| Passive Double-Balanced Topology | Eliminates need for DC bias or active devices-reduces power dependency and improves reliability. |
| Integrated Balun Structures | Enables 48 dB LO-to-RF isolation and suppresses even-order harmonics without external components. |
| No External Matching Required | Reduces BOM count and layout complexity-simplifies integration into compact RF modules and multilayer PCBs. |
| RoHS-Compliant Leadless SMT Package | Supports high-volume reflow assembly; eliminates wire bonding; ensures repeatable RF performance. |
| Wide Operating Temperature Range | Validated from −40°C to +85°C-suitable for uncontrolled outdoor enclosures and military platforms. |
Applications
| WiMAX Base Stations | Point-to-Point Radio Transceivers |
|---|---|
|
Use Scenario: Downconverting 3.5 GHz or 5.8 GHz licensed/unlicensed WiMAX signals to baseband I/Q for digital demodulation. IC Role / Device Role / Timing Role: Fundamental passive double-balanced mixer providing RF-to-IF translation with minimal added noise and distortion. Use Value: 7 dB conversion loss and 22 dBm IP3 preserve EVM in 64-QAM systems; DC–3 GHz IF bandwidth supports full-channel capture. |
Use Scenario: Upconverting IF signals to 6–7 GHz carrier frequencies in licensed microwave backhaul radios. IC Role / Device Role / Timing Role: High-isolation upconverter enabling clean spectral output with low LO feedthrough. Use Value: 48 dB LO-to-RF isolation reduces need for bulky LO suppression filters; +9 dBm LO sensitivity lowers synthesizer power consumption. |
| RF Test Equipment Front Ends | Military Radar Receivers |
|
Use Scenario: Broadband signal analysis in vector signal analyzers covering 2.5–7 GHz with real-time IF digitization. IC Role / Device Role / Timing Role: Wideband mixer supporting DC-coupled IF output for direct ADC sampling. Use Value: DC–3 GHz IF bandwidth enables full-spectrum capture without IF translation stages; N/C pins simplify grounding layout. |
Use Scenario: Low-SWaP radar receivers requiring high dynamic range and temperature resilience in airborne or vehicle-mounted systems. IC Role / Device Role / Timing Role: Radiation-tolerant GaAs MMIC mixer operating across military temperature extremes. Use Value: −40°C to +85°C rating and 150°C channel temperature limit ensure reliability under thermal stress; +25 dBm RF/LO tolerance withstands pulsed radar environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar passive mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC1048LP4E | Wider RF range (1.7–10 GHz), higher conversion loss (8.5 dB typ.), same 24-lead 4×4 mm package. | Better suited for multi-band LTE/5G macro base stations needing extended upper-frequency coverage. | Select HMC1048LP4E when RF band exceeds 7 GHz; otherwise HMC557LC4TR-R5 offers lower loss in 2.5–7 GHz band. |
| ADL5802ACPZ-R7 | Active mixer with 5.5 dB NF, +27 dBm IIP3, requires Vcc bias; 24-lead 4×4 mm LFCSP package. | Preferred where low-noise receive chain performance outweighs power consumption concerns. | Choose ADL5802ACPZ-R7 for ultra-low-noise receivers; HMC557LC4TR-R5 remains optimal for zero-bias, high-linearity, low-power passive mixing. |
Compared with HMC1048LP4E and ADL5802ACPZ-R7, the HMC557LC4TR-R5 uniquely balances ultra-low conversion loss, zero-bias operation, and high LO/RF isolation within its 2.5–7 GHz band-making it the preferred choice for thermally constrained, high-reliability wireless infrastructure where external biasing or added noise is unacceptable.
Availability
HMC557LC4TR-R5 is available at Aetrix Electronics and suitable for WiMAX base stations, point-to-point radio transceivers, and RF test equipment requiring stable component supply, RoHS-compliant SMT integration, and guaranteed long-term availability.
Supply support for HMC557LC4TR-R5 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 integrates its high-frequency RF portfolio into precision analog and RF solutions for communications, defense, and instrumentation markets.
The HMC557LC4TR-R5 belongs to Hittite's legacy GaAs MMIC mixer family-designed specifically for broadband, high-isolation, zero-bias RF front-end translation in wireless infrastructure and defense systems.
FAQ
What is the recommended LO drive level for optimal performance of the HMC557LC4TR-R5?
The HMC557LC4TR-R5 achieves best conversion loss and isolation at +15 dBm LO drive, but operates reliably from +9 dBm to +25 dBm. At +9 dBm, conversion loss increases by ~1.5 dB versus +15 dBm, while LO-to-RF isolation drops ~4 dB. For battery-powered systems, +9 dBm is viable; for maximum linearity and SNR, +15 dBm is recommended. The HMC557LC4TR-R5 does not require external LO amplification at these levels.
Can the HMC557LC4TR-R5 be used for DC-coupled IF operation, and what are the limits?
Yes, the HMC557LC4TR-R5 supports true DC-coupled IF operation. Pin 9 (IF) must not source or sink more than ±2 mA DC current to avoid non-function or damage. For AC-coupled applications, a series capacitor sized for the lowest IF frequency (e.g., 100 pF for 10 MHz low edge) is recommended. The HMC557LC4TR-R5 maintains flat response from DC to 3 GHz, making it ideal for zero-IF and complex I/Q architectures.
Does the HMC557LC4TR-R5 require external matching networks or baluns?
No. The HMC557LC4TR-R5 integrates optimized balun structures and is internally matched to 50 Ω on all ports (LO, RF, IF). No external matching components, transformers, or baluns are needed-simplifying layout and reducing insertion loss. This feature is confirmed in the functional diagram and electrical specifications table of the official datasheet for the HMC557LC4TR-R5.
What is the thermal design guidance for the HMC557LC4TR-R5 in high-power applications?
The HMC557LC4TR-R5 has a thermal resistance of 192 °C/W (channel to ground paddle). To maintain junction temperature ≤125 °C at 85 °C ambient, total dissipation must stay below 180 mW. Use ≥6 thermal vias under the exposed paddle, connect to a solid internal ground plane, and avoid routing high-current traces nearby. Derating begins above 85 °C ambient at 5.2 mW/°C-critical for enclosed outdoor radios using the HMC557LC4TR-R5.
Is the HMC557LC4TR-R5 pin-compatible with other Hittite mixer variants like HMC557LC3?
No. The HMC557LC4TR-R5 uses a 24-lead 4×4 mm ceramic package, whereas HMC557LC3 is housed in a 16-lead 3×3 mm package with different pin count, spacing, and terminal assignment. Pin compatibility is not supported; PCB redesign is required when substituting between these variants. Always verify mechanical drawings and pin descriptions before migration-especially for the HMC557LC4TR-R5's unique N/C and ground pin distribution.
HMC557LC4TR-R5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-TFCQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- RF Type:
- General Purpose
- Frequency:
- 2.5GHz ~ 7GHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- 8.5dB
- Secondary Attributes:
- Up/Down Converter
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-CQFN (4x4)
HMC557LC4TR-R5 FAQ
1.How can I place an order for HMC557LC4TR-R5 through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC557LC4TR-R5 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 HMC557LC4TR-R5 reliable?
The price and inventory of HMC557LC4TR-R5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC557LC4TR-R5 is usually 5 days.
3.What payment methods are accepted for HMC557LC4TR-R5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC557LC4TR-R5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC557LC4TR-R5?
HMC557LC4TR-R5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC557LC4TR-R5 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 HMC557LC4TR-R5?
For technical support, including HMC557LC4TR-R5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC557LC4TR-R5 requirements.
6.How does Aetrix verify that HMC557LC4TR-R5 is sourced from the original manufacturer or authorized distributors?
All HMC557LC4TR-R5 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 HMC557LC4TR-R5 meets industry standards.
7.What is the process for return or replacement of HMC557LC4TR-R5?
All HMC557LC4TR-R5 units undergo pre-shipment inspection (PSI). If there is an issue with HMC557LC4TR-R5, 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 HMC557LC4TR-R5 part is unused and in its original packaging.
Return procedure for HMC557LC4TR-R5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HMC557LC4TR-R5 Tags
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MAX2671EUT+T
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ADEX-10+
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ADE-2+
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LT5560EDD#PBF
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LT5560EDD#TRPBF
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LTC5562IUC#TRPBF
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MAX2681EUT+T
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ADE-1ASK+
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ADE-1L+
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