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Analog Devices Inc. HMC620LC4TR-R5
- Part No.:
- HMC620LC4TR-R5
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 24-TFCQFN Exposed Pad
- Datasheet:
-
HMC620LC4TR-R5.pdf
- Description:
- IC MMIC IQ MIXER 24SMD
- Quantity:
- Payment:
- Shipping:
Inventory:1,815
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Product details
Overview
HMC620LC4TR-R5 from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC I/Q mixer designed for RF front-end downconversion and upconversion in 3–7 GHz systems. It functions as an Image Reject Mixer (IRM) or Single Sideband Upconverter with 32 dB image rejection, +22 dBm input IP3, and DC–3.5 GHz IF bandwidth. It is used in WiMAX base stations and point-to-point radio transceivers requiring high linearity and sideband suppression.
For engineers reviewing the HMC620LC4TR-R5 datasheet, HMC620LC4TR-R5 pinout, HMC620LC4TR-R5 application, or HMC620LC4TR-R5 equivalent, key selection criteria include its 90° hybrid-integrated architecture, LO drive sensitivity (+15 dBm typical), amplitude/phase balance (<0.3 dB / <3°), and compatibility with surface-mount manufacturing on RF PCBs using 50 Ω impedance routing.
Technical Context
The HMC620LC4TR-R5 integrates two double-balanced GaAs MESFET mixer cells with an on-die low-frequency quadrature hybrid to generate precise 90° phase-shifted IF outputs (IF1/IF2). Its architecture enables intrinsic image rejection without external hybrids, supporting both IRM and SSB upconversion modes.
It operates with DC-coupled RF, LO, and IF ports (RF and LO matched to 50 Ω), requires full RF ground connection across 17 pins plus exposed paddle, and supports LO drive levels from +11 to +19 dBm while maintaining stable conversion gain and sideband rejection across temperature (−55°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF/LO Frequency Range | 3–7 GHz - Enables direct use in X-band wireless infrastructure without frequency translation stages. |
| IF Bandwidth | DC–3.5 GHz - Supports baseband I/Q sampling and wideband modulation schemes including OFDM. |
| Image Rejection | 20–32 dB - Reduces need for external image-filtering components in receiver chain design. |
| Input IP3 | +22 dBm - Ensures robust two-tone linearity in dense RF environments like multi-carrier base stations. |
| LO–RF Isolation | 38–43 dB - Minimizes LO leakage into antenna path, easing front-end filter requirements. |
| Amplitude Balance | ±0.3 dB - Maintains I/Q signal fidelity critical for QAM-64/256 demodulation accuracy. |
| Phase Balance | ±3° - Limits quadrature error-induced EVM degradation in high-order modulation systems. |
Pinout & Package
24-lead leadless ceramic SMT package (4×4 mm, 16 mm²), alumina body, gold-over-nickel plating, MSL3 rated. Exposed ground paddle and 17 dedicated ground pins require soldering to PCB RF ground plane for optimal isolation and thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 6–8, 10, 13, 17–24 | No Connect | Internally unused; may be grounded without performance impact. |
| 3, 5, 12, 14, 16 | RF Ground | Must connect to PCB ground plane; contributes to RF shielding and thermal dissipation. |
| 4 | RF Input | DC-coupled 50 Ω port; accepts −10 dBm RF signal at 3–7 GHz. |
| 9 | IF1 Output | DC-coupled I-channel output; max ±3 mA DC current to avoid damage. |
| 11 | IF2 Output | DC-coupled Q-channel output; phase-shifted 90° relative to IF1. |
| 15 | LO Input | DC-coupled 50 Ω port; requires +15 dBm nominal drive for optimal conversion loss and IP3. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 90° Hybrid | Eliminates need for external IF hybrid, reducing board area and assembly complexity in I/Q architectures. |
| High LO–RF Isolation | 43 dB minimizes LO radiation risk and relaxes filtering requirements before power amplifiers or antennas. |
| Wide IF Bandwidth | DC–3.5 GHz supports zero-IF receivers and complex waveforms such as LTE-A carrier aggregation. |
| Pb-Free RoHS Compliance | Leadless ceramic package meets IPC/JEDEC J-STD-020 MSL3 reflow profile (260 °C peak). |
| Thermal Resistance | 112 °C/W (channel-to-die-bottom) enables operation up to +85 °C ambient with standard PCB copper pour. |
Applications
| Point-to-Point Radio | WiMAX Base Station |
|---|---|
Use Scenario: Full-duplex microwave backhaul link operating at 5.8 GHz with 20 MHz channel bandwidth. IC Role / Device Role / Timing Role: Image Reject Mixer in receive path for suppression of adjacent-channel interference and local oscillator feedthrough. Use Value: 32 dB image rejection enables >40 dB adjacent-channel rejection without additional filtering, reducing BOM cost and insertion loss. |
Use Scenario: Fixed wireless access node supporting IEEE 802.16d/e in 3.5 GHz licensed band. IC Role / Device Role / Timing Role: I/Q downconverter for OFDM symbol demodulation with DC–3.5 GHz IF output feeding dual ADCs. Use Value: DC-coupled IF ports allow direct connection to baseband processors, eliminating AC-coupling capacitors and associated phase skew. |
| VSAT Terminal | Test & Measurement Receiver |
Use Scenario: Ku-band satellite terminal receiving 12.25–12.75 GHz signals with LNB downconversion to 950–1450 MHz. IC Role / Device Role / Timing Role: Second-stage IRM after LNB, rejecting image at 11.25–11.75 GHz. Use Value: +22 dBm input IP3 ensures clean reception under strong interferer conditions common in shared spectrum environments. |
Use Scenario: Wideband spectrum analyzer front-end covering 3–7 GHz with real-time I/Q digitization. IC Role / Device Role / Timing Role: Core I/Q mixer enabling vector signal analysis with calibrated amplitude/phase balance. Use Value: ±0.3 dB amplitude and ±3° phase balance maintain <1.5% EVM for 64-QAM test signals across full RF band. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar I/Q mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC1048LP4CE | Wider RF range (2–18 GHz), higher conversion loss (10.5 dB typ), same 24-lead 4×4 mm package. | Better suited for multi-band test equipment; less optimal for fixed 3–7 GHz infrastructure due to higher noise figure. | Select when broad frequency coverage outweighs conversion loss penalty. |
| ADL5375-05 | SiGe BiCMOS process, lower IP3 (+17 dBm), integrated LO buffer, 5 mm × 5 mm LFCSP package. | Designed for lower-cost consumer-grade radios; lacks DC-coupled IF and requires external LO amplification. | Prefer for cost-sensitive, moderate-performance applications where LO drive headroom is limited. |
Compared with HMC1048LP4CE and ADL5375-05, the HMC620LC4TR-R5 delivers superior image rejection and linearity within its 3–7 GHz band, making it optimal for high-reliability wireless infrastructure where sideband purity and dynamic range are critical.
Availability
HMC620LC4TR-R5 is available at Aetrix Electronics and suitable for point-to-point radio, WiMAX base station, and VSAT terminal designs requiring stable component supply, consistent RF performance, and long-term lifecycle support.
Supply support for HMC620LC4TR-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 for defense, communications, and instrumentation markets.
The HMC620LC4TR-R5 belongs to the Hittite GaAs MMIC mixer product line, engineered specifically for high-linearity, compact I/Q signal processing in microwave wireless infrastructure.
FAQ
What is the recommended LO drive level for optimal performance of the HMC620LC4TR-R5?
The HMC620LC4TR-R5 achieves best conversion loss (7.5 dB typ), image rejection (32 dB), and IP3 (+22 dBm) at +15 dBm LO drive. Performance remains stable between +13 and +17 dBm; below +11 dBm, conversion gain drops significantly and sideband rejection degrades by up to 8 dB.
Can the HMC620LC4TR-R5 be used for upconversion, and what is its sideband rejection?
Yes, the HMC620LC4TR-R5 supports SSB upconversion with sideband rejection of 20–30 dBc depending on RF frequency and LO drive. At 5.6 GHz RF and +15 dBm LO, sideband rejection measures 28 dBc - sufficient for medium-complexity modulation schemes like QPSK and 16-QAM.
Is DC coupling supported on all ports of the HMC620LC4TR-R5?
Yes - RF, LO, IF1, and IF2 ports are all DC-coupled and 50 Ω matched. However, IF1 and IF2 must not source or sink more than ±3 mA DC current; exceeding this risks non-function or permanent damage to the HMC620LC4TR-R5.
What grounding requirements apply to the HMC620LC4TR-R5 package?
All ground pins (3, 5, 12, 14, 16) and the exposed bottom paddle must be soldered to a solid RF ground plane using multiple thermal vias. Inadequate grounding causes degraded LO–RF isolation (<35 dB) and increased conversion loss variation across temperature.
Does the HMC620LC4TR-R5 require an external IF 90° hybrid?
No - the HMC620LC4TR-R5 integrates a low-frequency 90° hybrid internally. External hybrids are only needed if custom IF phase alignment or extended IF bandwidth beyond 3.5 GHz is required. Using an external hybrid degrades amplitude/phase balance and increases insertion loss.
HMC620LC4TR-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:
- LTE, WiMax
- Frequency:
- 3GHz ~ 7GHz
- Number of Mixers:
- 2
- Gain:
- -
- Noise Figure:
- -
- Secondary Attributes:
- Up Converter
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-CQFN (4x4)
HMC620LC4TR-R5 FAQ
1.How can I place an order for HMC620LC4TR-R5 through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC620LC4TR-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 HMC620LC4TR-R5 reliable?
The price and inventory of HMC620LC4TR-R5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC620LC4TR-R5 is usually 5 days.
3.What payment methods are accepted for HMC620LC4TR-R5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC620LC4TR-R5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC620LC4TR-R5?
HMC620LC4TR-R5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC620LC4TR-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 HMC620LC4TR-R5?
For technical support, including HMC620LC4TR-R5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC620LC4TR-R5 requirements.
6.How does Aetrix verify that HMC620LC4TR-R5 is sourced from the original manufacturer or authorized distributors?
All HMC620LC4TR-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 HMC620LC4TR-R5 meets industry standards.
7.What is the process for return or replacement of HMC620LC4TR-R5?
All HMC620LC4TR-R5 units undergo pre-shipment inspection (PSI). If there is an issue with HMC620LC4TR-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 HMC620LC4TR-R5 part is unused and in its original packaging.
Return procedure for HMC620LC4TR-R5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HMC620LC4TR-R5 Tags
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