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Analog Devices Inc. HMC525LC4TR-R5
- Part No.:
- HMC525LC4TR-R5
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 24-TFQFN Exposed Pad
- Datasheet:
-
HMC525LC4TR-R5.pdf
- Description:
- IC MMIC IQ MIXER 4-8.5GHZ 24SMD
- Quantity:
- Payment:
- Shipping:
Inventory:4,254
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Product details
Overview
HMC525LC4TR-R5 from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC I/Q mixer operating from 4–8.5 GHz RF/LO and DC–3.5 GHz IF, delivering 7.5–9.5 dB conversion loss, 30–40 dB image rejection, and +23 dBm input IP3 - ideal for point-to-point radio and VSAT receiver front-ends.
For engineers reviewing the HMC525LC4TR-R5 datasheet, HMC525LC4TR-R5 pinout, HMC525LC4TR-R5 application, or HMC525LC4TR-R5 equivalent, key selection criteria include its 4×4 mm leadless RoHS-compliant SMT package, LO-driven quadrature architecture, DC-coupled IF ports with ±3 mA current limit, and validated performance as both Image Reject Mixer and SSB upconverter.
Technical Context
The HMC525LC4TR-R5 integrates two double-balanced GaAs MESFET mixer cells with an on-die 90° hybrid to generate in-phase (IF1) and quadrature (IF2) outputs; it operates as a downconverter with external IF hybrid or as an upconverter without one. Its RF and LO ports are AC-coupled and 50 Ω matched across 4–8.5 GHz.
Thermal design requires soldering all ground pins (3,5,12,14,16) and the exposed paddle to PCB RF ground; absolute maximum ratings specify +27 dBm LO drive, +20 dBm RF/IF input, and operation from –55°C to +85°C with 103 °C/W junction-to-bottom thermal resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF/LO Frequency Range | 4.0–8.5 GHz - supports full-band microwave links including 5.8 GHz ISM and 7 GHz licensed backhaul |
| IF Bandwidth | DC–3.5 GHz - enables baseband I/Q sampling and wideband modulation schemes without external IF filtering |
| Conversion Loss (IRM mode) | 7.5–9.5 dB - defines signal path attenuation when used as image-reject downconverter at +15 dBm LO |
| Image Rejection | 30–40 dB - determines suppression of unwanted sideband in receiver architectures requiring high dynamic range |
| Input IP3 | +23 dBm - sets third-order intermodulation distortion floor for multi-carrier LTE/WiMAX coexistence |
| LO–RF Isolation | 40–50 dB - limits LO leakage into antenna path, reducing spurious emissions and improving receiver sensitivity |
| Amplitude & Phase Balance | ±0.2 dB / ±4° - ensures quadrature accuracy critical for complex modulation fidelity (QPSK, 16-QAM) |
Pinout & Package
Package: 24-lead 4×4 mm leadless surface-mount package with alumina body, gold-over-nickel plating, MSL3 rating, and exposed ground paddle requiring solder attachment to PCB RF ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,2,6–8,10,13,17–24 | No Connection | Internally unconnected; may be tied to RF/DC ground without performance impact |
| 3,5,12,14,16 | Ground | Must be soldered to PCB ground plane; forms part of RF return path and thermal conduction path |
| 4 | RF Input | AC-coupled, 50 Ω matched port for 4–8.5 GHz RF signal; requires external DC blocking if DC present |
| 9 | IF1 Output | DC-coupled I-channel output; max ±3 mA DC current to avoid non-function or damage |
| 11 | IF2 Output | DC-coupled Q-channel output; same DC current limit and bias constraints as IF1 |
| 15 | LO Input | AC-coupled, 50 Ω matched port for 4–8.5 GHz local oscillator; rated to +27 dBm max |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 90° Hybrid | Eliminates external hybrid components, reducing board area and insertion loss in I/Q signal paths |
| DC-Coupled IF Outputs | Supports zero-IF and low-IF architectures without mandatory AC coupling, enabling direct connection to baseband ADCs |
| High LO–RF Isolation (50 dB) | Minimizes LO radiation through antenna, easing EMC compliance in compact wireless transceivers |
| Compact 4×4 mm SMT Footprint | Replaces larger hybrid-style IRMs, enabling denser RF front-end integration in phased-array and small-cell radios |
| RoHS-Compliant Pb-Free Construction | Meets global environmental regulations and supports lead-free reflow profiles up to 260°C peak |
Applications
| Point-to-Point Radio Receiver | VSAT Outdoor Unit (ODU) |
|---|---|
Use Scenario: 7 GHz licensed backhaul link receiving modulated QPSK signals in outdoor enclosure with limited space and thermal margin. IC Role / Device Role / Timing Role: Image-reject downconverter converting 7.125 GHz RF to 100 MHz I/Q baseband for demodulation. Use Value: 40 dB image rejection and +23 dBm IP3 enable robust reception under strong adjacent-channel interferers without external filtering. | Use Scenario: Ku-band VSAT terminal receiving satellite broadcast in remote locations with wide temperature variation (–40°C to +70°C). IC Role / Device Role / Timing Role: First-stage downconverter translating 12.25 GHz satellite signal to 1.5 GHz IF with minimal phase noise degradation. Use Value: DC–3.5 GHz IF bandwidth supports flexible channelization; –55°C to +85°C operating range ensures reliability in uncontrolled environments. |
| Millimeter-Wave Test Equipment Front-End | Phased Array Radar Transceiver |
Use Scenario: Vector signal analyzer up to 8.5 GHz requiring calibrated I/Q acquisition for EVM measurement of 5G NR FR1 waveforms. IC Role / Device Role / Timing Role: Precision I/Q mixer providing amplitude/phase-balanced outputs for coherent digitization. Use Value: ±0.2 dB amplitude and ±4° phase balance directly support <1% EVM target at 64-QAM without calibration compensation. | Use Scenario: Active electronically scanned array (AESA) radar module with integrated T/R functionality and beamforming control. IC Role / Device Role / Timing Role: Dual-mode mixer serving as receive-path IRM and transmit-path SSB upconverter in time-division duplex configuration. Use Value: Single device replaces separate up/down mixers, reducing BOM count and interconnect complexity while maintaining 30+ dB sideband rejection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar I/Q mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC1048LP4E | Wider RF range (2–18 GHz), higher conversion loss (9.5–11.5 dB), same 4×4 mm package | Better suited for multi-band test equipment; less optimal for narrowband 5–7 GHz fixed wireless due to higher noise figure | Select HMC1048LP4E only when extended frequency coverage outweighs 2 dB conversion loss penalty |
| ADL5375-05 | Lower frequency (300 MHz–3.8 GHz), integrated LO buffer, requires external IF hybrid for IRM mode | Targeted at sub-6 GHz cellular infrastructure; incompatible with 4–8.5 GHz RF band without external upconversion | Choose ADL5375-05 for LTE macro base stations; not a functional substitute for HMC525LC4TR-R5 in microwave bands |
Compared with HMC1048LP4E and ADL5375-05, the HMC525LC4TR-R5 delivers optimal trade-off of bandwidth, image rejection, and size specifically for 4–8.5 GHz fixed wireless and satellite receivers - neither alternative matches its combination of DC–3.5 GHz IF, 40 dB image rejection, and self-contained quadrature generation in a 4×4 mm footprint.
Availability
HMC525LC4TR-R5 is available at Aetrix Electronics and suitable for point-to-point radio, VSAT terminals, and millimeter-wave test equipment requiring stable component supply, consistent lot-to-lot RF performance, and long-term obsolescence management.
Supply support for HMC525LC4TR-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 maintains its high-frequency RF portfolio, specializing in GaAs and SiGe MMICs for defense, communications, and instrumentation markets.
The HMC525LC4TR-R5 belongs to Hittite's legacy I/Q mixer product line, engineered for microwave receiver and transmitter front-ends where compact size, high linearity, and precise quadrature accuracy are critical.
FAQ
What is the recommended LO drive level for optimal performance of the HMC525LC4TR-R5?
The HMC525LC4TR-R5 achieves best image rejection (up to 40 dB) and conversion loss (as low as 7.5 dB) at +15 dBm LO drive. Performance remains stable from +13 dBm to +19 dBm, but exceeding +27 dBm risks permanent damage per absolute maximum ratings.
Can the HMC525LC4TR-R5 be used as an upconverter, and what external components are required?
Yes, the HMC525LC4TR-R5 functions as a single-sideband upconverter without external IF hybrid. To do so, apply baseband I/Q signals to IF1 and IF2, inject LO at pin 15, and extract RF from pin 4. No additional hybrids or baluns are needed - the quadrature generation is fully integrated.
What are the DC bias requirements for the IF1 and IF2 outputs of the HMC525LC4TR-R5?
The IF1 (pin 9) and IF2 (pin 11) ports are DC-coupled and must not source or sink more than ±3 mA DC current. Exceeding this limit causes non-function or irreversible damage. For AC-only IF paths, external series capacitors are recommended to block DC while passing the full DC–3.5 GHz bandwidth.
Is the HMC525LC4TR-R5 pin-compatible with earlier Hittite I/Q mixers like the HMC525LC4?
Yes, the HMC525LC4TR-R5 is a tape-and-reel variant of the HMC525LC4 and shares identical pinout, package dimensions, electrical specifications, and thermal characteristics. The "TR-R5" suffix denotes packaging format only - no circuit or performance differences exist between the two.
How should the exposed ground paddle on the HMC525LC4TR-R5 package be handled during PCB layout?
The exposed ground paddle on the HMC525LC4TR-R5 must be soldered to a solid, low-inductance RF ground plane using multiple thermal vias. Per datasheet note, all ground pins (3,5,12,14,16) and the paddle must connect to the same ground net to ensure proper RF return path, thermal dissipation (631 mW at 85°C), and isolation performance.
HMC525LC4TR-R5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-TFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- RF Type:
- General Purpose
- Frequency:
- 4GHz ~ 8.5GHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- -
- Secondary Attributes:
- -
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
HMC525LC4TR-R5 FAQ
1.How can I place an order for HMC525LC4TR-R5 through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC525LC4TR-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 HMC525LC4TR-R5 reliable?
The price and inventory of HMC525LC4TR-R5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC525LC4TR-R5 is usually 5 days.
3.What payment methods are accepted for HMC525LC4TR-R5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC525LC4TR-R5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC525LC4TR-R5?
HMC525LC4TR-R5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC525LC4TR-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 HMC525LC4TR-R5?
For technical support, including HMC525LC4TR-R5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC525LC4TR-R5 requirements.
6.How does Aetrix verify that HMC525LC4TR-R5 is sourced from the original manufacturer or authorized distributors?
All HMC525LC4TR-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 HMC525LC4TR-R5 meets industry standards.
7.What is the process for return or replacement of HMC525LC4TR-R5?
All HMC525LC4TR-R5 units undergo pre-shipment inspection (PSI). If there is an issue with HMC525LC4TR-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 HMC525LC4TR-R5 part is unused and in its original packaging.
Return procedure for HMC525LC4TR-R5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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