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Analog Devices Inc. HMC915LP4E
- Part No.:
- HMC915LP4E
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
HMC915LP4E.pdf
- Description:
- IC MIXER 500MHZ-2.7GHZ 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,274
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Product details
Overview
HMC915LP4E from Hittite Microwave Corporation is a GaAs MMIC double-balanced mixer with integrated LO amplifier, operating from 0.5 to 2.7 GHz RF/LO and supporting DC–1 GHz IF bandwidth. It delivers +28 dBm input IP3, 8 dB typical conversion loss, and 28 dB LO-to-RF isolation, enabling high-linearity upconverter/downconverter functions in wireless infrastructure.
For engineers reviewing the HMC915LP4E datasheet, HMC915LP4E pinout, HMC915LP4E application, or HMC915LP4E equivalent, key selection criteria include its -2 to +4 dBm LO drive range, single +5V supply operation at 88 mA, 24-lead 4×4 mm SMT package, and compatibility with PCS, WiMAX, and ISM band systems requiring robust intermodulation performance.
Technical Context
The HMC915LP4E integrates a GaAs-based LO amplifier and double-balanced passive mixer core on a single die, eliminating external baluns. Its RF and LO ports are DC-coupled and 50 Ω matched, while the IF port supports true DC coupling (with current limit ≤18 mA) or AC coupling via external capacitor.
It employs a high-isolation topology achieving 22–30 dB LO-to-RF isolation and 10–18 dB LO-to-IF isolation across its band. The design enables low-side or high-side LO injection configurations and maintains stable conversion gain and IP3 over temperature (-55°C to +85°C) without bias adjustment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF/LO Frequency Range | 0.5–2.7 GHz - Covers PCS, WiMAX, ISM, and fixed wireless bands in a single device. |
| IF Bandwidth | DC–1.0 GHz - Enables baseband I/Q downconversion and wideband upconversion without IF filtering constraints. |
| Input IP3 | +28 dBm (typ.) - Supports high dynamic range receivers handling strong interferers near desired signals. |
| Conversion Loss | 8 dB (typ.), 13 dB (max) - Low loss preserves system noise figure and reduces post-mixer amplification needs. |
| LO Drive Range | -2 to +4 dBm - Compatible with low-power synthesizers; eliminates need for external LO buffer stages. |
| LO-to-RF Isolation | 28 dB (typ.) - Minimizes LO leakage into antenna paths, easing front-end filter requirements. |
| Supply | +5 V @ 88 mA - Single-rail operation simplifies power delivery; low quiescent current aids thermal management. |
Pinout & Package
Package: 24-lead 4×4 mm leadless plastic QFN (LP4E), RoHS-compliant, MSL1, with exposed ground paddle requiring solder connection to PCB RF ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | MIX LO | DC-coupled 50 Ω input to internal LO amplifier output; requires no external blocking capacitor. |
| 3 | BIAS | Power supply node for LO amplifier; requires three external bypass capacitors (100 pF, 100 pF, 1000 pF) per datasheet. |
| 4, 24 | GND | Ground terminals; backside paddle must be soldered to PCB ground plane for thermal and RF performance. |
| 5 | LO | DC-coupled 50 Ω LO input; external DC blocking capacitor required before connection. |
| 10 | IF | DC-coupled IF output; supports DC–1 GHz; max ±18 mA DC current to avoid damage. |
| 18 | RF | DC-coupled 50 Ω RF port; matched for direct connection to antenna or filter networks. |
| 2, 6–9, 11–17, 19–23 | N/C | No-connect pins; must be externally grounded per RF layout best practices to suppress parasitics. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LO amplifier | Eliminates discrete LO buffer stage, reducing BOM count and board area while maintaining -2 to +4 dBm drive tolerance. |
| Double-balanced mixer core | Provides inherent suppression of LO×2, RF×2, and LO+RF spurs, lowering post-mixer filtering complexity. |
| DC-coupled IF port | Enables zero-IF and complex I/Q architectures without DC-blocking capacitor limitations or high-pass distortion. |
| High LO-to-RF isolation | 28 dB typical isolation reduces risk of LO radiation through antenna path, easing EMC compliance testing. |
| Pin-for-pin compatibility | Direct replacement for HMC552LP4E and HMC215LP4E in existing layouts, enabling drop-in upgrades without redesign. |
Applications
| PCS / 3G Infrastructure | WiMAX Base Stations |
|---|---|
Use Scenario: Downconverting 1.9 GHz PCS receive signals to 100 MHz IF in macrocell transceivers. IC Role / Device Role / Timing Role: Double-balanced mixer with integrated LO amplifier performing RF-to-IF translation. Use Value: +28 dBm IP3 handles co-channel interferers; 8 dB conversion loss preserves receiver sensitivity without added gain stages. |
Use Scenario: Upconverting 100 MHz OFDMA baseband signals to 2.5 GHz WiMAX band in outdoor CPE units. IC Role / Device Role / Timing Role: High-linearity upconverter with DC-coupled IF supporting complex modulation schemes. Use Value: DC–1 GHz IF bandwidth accommodates full WiMAX channel bandwidths; -2 dBm minimum LO drive eases synthesizer integration. |
| ISM Band Repeaters | Fixed Wireless Access |
Use Scenario: Bidirectional signal translation in 2.4 GHz ISM-band repeaters for industrial telemetry links. IC Role / Device Role / Timing Role: Dual-mode mixer used in both uplink and downlink paths with shared LO. Use Value: 28 dB LO-to-RF isolation prevents transmit LO leakage from desensitizing receive path; 4×4 mm footprint saves space in compact enclosures. |
Use Scenario: Converting 5.8 GHz unlicensed band signals to 70 MHz IF in point-to-point backhaul radios. IC Role / Device Role / Timing Role: High-isolation downconverter enabling clean IF extraction in interference-prone environments. Use Value: 22–30 dB LO-to-RF isolation over 0.5–2.7 GHz reduces need for external LO filtering; +5 V single supply simplifies remote site power design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixer-with-integrated-LO-amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC552LP4E | Same 24-lead 4×4 mm LP4E package; lower IP3 (+24 dBm typ.), higher conversion loss (9.5 dB typ.), narrower RF range (0.5–2.0 GHz). | Targeted at cost-sensitive 3G femtocells where linearity demands are relaxed. | Select when budget constraints outweigh need for +28 dBm IP3 and full 2.7 GHz coverage. |
| HMC215LP4E | Same pinout; older GaAs process; +23 dBm IP3, 10.5 dB conversion loss, LO drive range -1 to +5 dBm. | Suitable for legacy ISM designs where thermal stability over -40°C to +85°C is less critical. | Choose only for backward compatibility in field-replacement scenarios; not recommended for new designs. |
Compared with HMC552LP4E and HMC215LP4E, the HMC915LP4E offers superior linearity (+28 dBm IP3), lower conversion loss (8 dB), and extended upper-frequency support to 2.7 GHz-making it optimal for next-generation WiMAX and LTE-Advanced infrastructure where spectral purity and wideband operation are essential.
Availability
HMC915LP4E is available at Aetrix Electronics and suitable for PCS infrastructure, WiMAX base stations, and ISM band repeaters requiring stable component supply, long-term lifecycle assurance, and traceable GaAs MMIC sourcing.
Supply support for HMC915LP4E 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
Hittite Microwave Corporation (acquired by Analog Devices in 2014) specialized in high-performance RFICs, MMICs, and microwave components for defense, wireless infrastructure, and test equipment markets.
The HMC915LP4E belongs to Hittite's high-linearity mixer family designed specifically for broadband wireless infrastructure applications demanding low conversion loss, high isolation, and integrated LO amplification without external baluns.
FAQ
What is the maximum RF input power rating for the HMC915LP4E?
The HMC915LP4E has an absolute maximum RF input power rating of +23 dBm. Exceeding this level risks permanent damage to the mixer diodes or LO amplifier. For reliable operation, RF input should remain below the 1 dB compression point of +18 dBm (typ.) to maintain linear performance and avoid distortion in sensitive receiver chains.
Does the HMC915LP4E require external baluns for operation?
No, the HMC915LP4E does not require external baluns. Its double-balanced architecture and internally matched 50 Ω RF, LO, and MIX LO ports enable direct 50 Ω interface with standard RF traces and connectors. This eliminates balun-related insertion loss, size, and cost-confirmed in the application circuit and functional diagram of the HMC915LP4E datasheet.
Can the HMC915LP4E operate with DC-coupled IF output?
Yes, the HMC915LP4E supports true DC-coupled IF operation. Pin 10 (IF) is DC-coupled and capable of passing signals from DC to 1 GHz. However, the device must not source or sink more than ±18 mA DC current at this pin to prevent die malfunction or failure-this constraint is explicitly specified in the HMC915LP4E pin descriptions.
What is the recommended LO drive level for optimal HMC915LP4E performance?
The HMC915LP4E achieves best linearity and conversion loss across its band with a nominal LO drive of +2 dBm. Its specified operating range is -2 to +4 dBm; using +2 dBm ensures +28 dBm IP3 and 8 dB conversion loss while staying within safe LO input limits (≤+8 dBm up to 4 GHz per absolute ratings).
Is the HMC915LP4E pin-compatible with other Hittite mixer variants?
Yes, the HMC915LP4E is pin-for-pin compatible with the HMC552LP4E and HMC215LP4E mixers. All three share identical 24-lead 4×4 mm LP4E packaging, pin numbering, and terminal functions-including MIX LO (Pin 1), LO (Pin 5), RF (Pin 18), IF (Pin 10), and BIAS (Pin 3)-enabling direct substitution in existing PCB layouts.
HMC915LP4E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Strip
- Product Status:
- Obsolete
- RF Type:
- General Purpose
- Frequency:
- 500MHz ~ 2.7GHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- 8.5dB
- Secondary Attributes:
- -
- Current - Supply:
- 88mA
- Voltage - Supply:
- 5V
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
HMC915LP4E FAQ
1.How can I place an order for HMC915LP4E through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC915LP4E 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 HMC915LP4E reliable?
The price and inventory of HMC915LP4E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC915LP4E is usually 5 days.
3.What payment methods are accepted for HMC915LP4E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC915LP4E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC915LP4E?
HMC915LP4E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC915LP4E 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 HMC915LP4E?
For technical support, including HMC915LP4E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC915LP4E requirements.
6.How does Aetrix verify that HMC915LP4E is sourced from the original manufacturer or authorized distributors?
All HMC915LP4E 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 HMC915LP4E meets industry standards.
7.What is the process for return or replacement of HMC915LP4E?
All HMC915LP4E units undergo pre-shipment inspection (PSI). If there is an issue with HMC915LP4E, 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 HMC915LP4E part is unused and in its original packaging.
Return procedure for HMC915LP4E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HMC915LP4E Tags
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ADE-1ASK+
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