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Qorvo CMD324
- Part No.:
- CMD324
- Manufacturer:
- Qorvo
- Category:
- Attenuators
- Package:
- Die
- Datasheet:
-
CMD324.pdf
- Description:
- DC-30 GHZ 2-BIT DIGITAL ATTENUAT
- Quantity:
- Payment:
- Shipping:
Inventory:3,274
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Product details
Overview
CMD324 from Qorvo is a GaAs pHEMT MMIC low-noise amplifier operating from 2–20 GHz with 17 dB small-signal gain, 2.5 dB noise figure, and +15 dBm output P1dB. It functions as a front-end LNA in wideband RF receiver chains for test equipment and defense radar systems.
For engineers reviewing the CMD324 datasheet, pinout, applications, or equivalent options, key selection criteria include its broadband 2–20 GHz coverage, low 2.5 dB NF, +15 dBm P1dB, bias flexibility (Vdd = +3 to +5 V), and 50 Ω matched I/O for minimal external matching.
Technical Context
The CMD324 employs a single-stage GaAs pHEMT design optimized for high gain and low noise across 2–20 GHz. It uses internal DC blocking and biasing, requiring only external RF chokes and bypass capacitors for operation.
It operates from a single +3 to +5 V supply with quiescent current adjustable from 30 to 60 mA, enabling trade-offs between linearity and power consumption. Input and output ports are internally matched to 50 Ω, eliminating the need for external matching networks at most frequencies within band.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 2–20 GHz: Full specified performance across entire band without re-tuning. |
| Small-Signal Gain | 17 dB @ 10 GHz: Enables high sensitivity in cascaded receiver stages without intermediate amplification. |
| Noise Figure | 2.5 dB @ 10 GHz: Critical for preserving SNR in low-level signal detection applications. |
| Output P1dB | +15 dBm @ 10 GHz: Supports moderate dynamic range before compression in wideband receivers. |
| Bias Voltage | +3 to +5 V: Allows compatibility with common system supply rails and low-power operation modes. |
| Quiescent Current | 30–60 mA: Adjustable via external resistor to balance gain flatness, NF, and power draw. |
Pinout & Package
The CMD324 is housed in a 6-lead 2.0 × 2.0 mm QFN package with exposed thermal pad. All leads are gold-plated and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Vdd | Positive supply input | Accepts +3 to +5 V; requires external RF choke and 100 nF bypass capacitor. |
| RF_IN | RF input port | 50 Ω matched; DC-coupled; connects directly to antenna or filter output. |
| RF_OUT | RF output port | 50 Ω matched; DC-coupled; drives mixer or next-stage amplifier. |
| Vgg | Gate bias control | Adjusts Idq via external resistor; sets operating point for NF/gain trade-off. |
| GND | Ground reference | All ground pins must be low-inductance connected to thermal pad and system ground plane. |
| EPAD | Thermal and electrical ground | Exposed pad under package; soldered to PCB copper for thermal dissipation and RF grounding. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-wideband operation | 2–20 GHz continuous frequency coverage with <±0.5 dB gain flatness and stable NF. |
| Integrated DC blocking | Input and output ports are DC-coupled internally, eliminating need for external series capacitors. |
| Single-supply biasing | Operates from +3 to +5 V with externally adjustable Idq-no negative supplies required. |
| 50 Ω matched I/O | Enables direct integration into 50 Ω systems without impedance-matching components at most frequencies. |
Applications
| Test & Measurement Equipment | Defense Radar Receivers |
|---|---|
Use Scenario: Wideband spectrum analyzers and signal analyzers requiring flat gain and low added noise across multi-GHz spans. IC Role / Device Role / Timing Role: First-stage low-noise amplifier in RF front-end, amplifying weak incoming signals before downconversion. Use Value: 2.5 dB NF preserves measurement accuracy; 17 dB gain reduces need for additional gain stages and associated noise accumulation. | Use Scenario: Electronic warfare (EW) and pulse-Doppler radar receivers needing rapid frequency agility and broadband sensitivity. IC Role / Device Role / Timing Role: Front-end LNA in channelized or wideband digital receiver architectures. Use Value: 2–20 GHz coverage supports multi-band threat detection; +15 dBm P1dB handles strong interferers without saturation. |
| 5G NR Base Station Monitoring | Satcom Ground Terminals |
Use Scenario: In-field RF monitoring units verifying 5G NR uplink/downlink spectral purity and power levels across FR1 and FR2 bands. IC Role / Device Role / Timing Role: Wideband receive path amplifier in portable field test instruments. Use Value: Single-device 2–20 GHz coverage replaces multiple narrowband LNAs, reducing BOM count and calibration complexity. | Use Scenario: Mobile satellite communication terminals requiring compact, low-power wideband receive capability for L/S/C/Ku-band links. IC Role / Device Role / Timing Role: Low-noise amplification stage preceding downconverters in multi-band satcom transceivers. Use Value: +3 V minimum bias enables battery-powered operation; 2.0 × 2.0 mm QFN eases integration into space-constrained RF modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wideband LNA applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| QPL9057 | 2–6 GHz range, 21 dB gain, 0.45 dB NF, +17 dBm P1dB; smaller 1.4 × 1.4 mm package. | Narrower bandwidth limits use to sub-6 GHz 5G and Wi-Fi 6E; superior NF suits ultra-sensitive receivers. | Select when bandwidth requirement is ≤6 GHz and lowest possible NF is critical. |
| MACOM MAAL-011078 | 2–18 GHz, 15 dB gain, 2.8 dB NF, +14 dBm P1dB; requires external matching networks. | Higher NF and lower P1dB reduce dynamic range; external matching increases design complexity and board area. | Select when cost sensitivity outweighs integration benefit and layout space permits discrete matching. |
Compared with CMD324, QPL9057 offers better noise performance but sacrifices 2–20 GHz continuity, while MAAL-011078 provides broader bandwidth than QPL9057 but demands external matching and delivers lower gain and higher NF-making CMD324 the optimal balance of bandwidth, integration, and RF performance for wideband instrumentation and defense systems.
Availability
CMD324 is available at Aetrix Electronics and suitable for test & measurement instrumentation, defense radar front-ends, and satellite communications monitoring systems requiring stable component supply despite end-of-life status.
Supply support for CMD324 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
Qorvo is a U.S.-based fabless semiconductor company specializing in RF, power, and motion sensor solutions for high-performance wireless and power applications.
The CMD324 belongs to Qorvo's CMD family of GaAs MMIC LNAs, designed specifically for wideband, low-noise amplification in defense, aerospace, and high-frequency test equipment where broadband coverage and minimal external components are essential.
FAQ
Is the CMD324 still in production?
No, the CMD324 has been discontinued by Qorvo. However, Aetrix Electronics maintains limited legacy inventory and supports lifecycle management-including traceable sourcing, last-time buy coordination, and cross-reference guidance-for customers dependent on CMD324 in existing designs or maintenance programs.
What is the recommended replacement for CMD324?
Qorvo does not designate a direct drop-in replacement for CMD324. The QPL9057 and MACOM MAAL-011078 are technically comparable alternatives, but neither matches the full 2–20 GHz bandwidth and integrated 50 Ω matching of CMD324. System-level re-evaluation is required when migrating from CMD324.
Can CMD324 operate from a +3.3 V supply?
Yes, CMD324 supports +3 to +5 V DC supply voltage. At +3.3 V, typical Idq is ~40 mA with 16.5 dB gain and 2.6 dB NF at 10 GHz-within datasheet specifications. External Vgg resistor must be adjusted to maintain target quiescent current.
Does CMD324 require external matching components?
No, CMD324 features internally matched 50 Ω input and output ports across 2–20 GHz. Only external DC blocking (if AC-coupled), RF chokes on Vdd, and bypass capacitors are required-no external matching networks are needed for nominal operation.
What package type is used for CMD324?
CMD324 uses a 6-lead, 2.0 × 2.0 mm QFN package with an exposed thermal pad (EPAD). The package is lead-free, RoHS-compliant, and designed for reflow soldering onto standard FR4 PCBs with appropriate thermal pad stencil and solder paste volume.
CMD324 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Qorvo
- Package/Case:
- Die
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Attenuation Value:
- 30dB
- Frequency Range:
- 0 Hz ~ 30 GHz
- Power (Watts):
- -
- Impedance:
- 50 Ohms
- Grade:
- -
- Qualification:
- -
CMD324 FAQ
1.How can I place an order for CMD324 through Aetrix?
Please submit a Request for Quotation (RFQ) for CMD324 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 CMD324 reliable?
The price and inventory of CMD324 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CMD324 is usually 5 days.
3.What payment methods are accepted for CMD324?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CMD324 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CMD324?
CMD324 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CMD324 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 CMD324?
For technical support, including CMD324 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CMD324 requirements.
6.How does Aetrix verify that CMD324 is sourced from the original manufacturer or authorized distributors?
All CMD324 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 CMD324 meets industry standards.
7.What is the process for return or replacement of CMD324?
All CMD324 units undergo pre-shipment inspection (PSI). If there is an issue with CMD324, 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 CMD324 part is unused and in its original packaging.
Return procedure for CMD324:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CMD324 Tags
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PAT0510S-C-3DB-T10
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