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Analog Devices Inc. ADMV4420ACPZ-RL7
- Part No.:
- ADMV4420ACPZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 32-WFQFN Exposed Pad, CSP
- Datasheet:
-
ADMV4420ACPZ-RL7.pdf
- Description:
- K-BAND RX WITH PLL
- Quantity:
- Payment:
- Shipping:
Inventory:4,354
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Product details
Overview
ADMV4420ACPZ-RL7 from Analog Devices is a highly integrated K-band downconverter IC combining an active double-balanced mixer, RF balun, LNA, fractional-N PLL, multicore VCO, and IF amplifier in a single SiGe BiCMOS die. It delivers 36 dB typical conversion gain, 7 dB noise figure, 7 dBm P1dB, and 16 dBm output IP3 across 16.95–22.05 GHz RF input and 900–2500 MHz IF output - enabling compact satellite transceivers.
For engineers reviewing the ADMV4420ACPZ-RL7 datasheet, ADMV4420ACPZ-RL7 pinout, ADMV4420ACPZ-RL7 application, or ADMV4420ACPZ-RL7 equivalent, this page provides verified RF front-end specifications, SPI-programmable PLL configuration details, thermal and supply requirements, and real-world K-band system integration guidance - all validated against Rev. A datasheet and functional block diagram.
Technical Context
The ADMV4420ACPZ-RL7 integrates a 16.35–21.15 GHz internal LO synthesizer using a fractional-N PLL with 50 MHz PFD frequency, 60 kHz loop bandwidth, and <400 µs frequency settling. Its multicore VCO (8.175–10.575 GHz) includes autocalibration and automatic level control, while the 2× internal multiplier generates the final LO signal for high-side or low-side injection mixing.
RF signal path features a 50 Ω single-ended input with integrated balun and LNA; IF output is 75 Ω single-ended open-collector requiring external bias choke. All digital interfaces (SPI, ENBL0/ENBL1, MUXOUT) operate at 3.3 V logic levels, and power is supplied via four independent 5 V rails (VPOS1_VCO to VPOS4_IF) with dedicated LDO decoupling pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Input Frequency | 16.95–22.05 GHz: Covers full K-band satellite uplink/downlink spectrum (e.g., 17.7–21.2 GHz DBS, 20.2–21.2 GHz Ka-band) |
| IF Output Frequency | 900–2500 MHz: Enables direct sampling by 2.5+ GSPS ADCs or interface to standard SDR baseband processors |
| Conversion Gain | 31–39 dB typ: Eliminates need for external IF amplification stages in most point-to-point microwave links |
| Noise Figure | 7 dB (SSB): Achieved via integrated LNA + optimized mixer topology - critical for weak-signal satellite reception |
| Output P1dB / IP3 | 7 dBm / 16 dBm: Supports >−20 dBm RF input without compression; enables >60 dB spurious-free dynamic range |
| Phase Noise | −116 dBc/Hz @ 1 MHz offset (LO = 21.15 GHz): Meets stringent spectral purity requirements for high-order QAM modulation |
| Supply Voltage | 4.75–5.25 V on four independent rails: Enables localized regulation and noise isolation between RF, PLL, CP, and IF domains |
Pinout & Package
ADMV4420ACPZ-RL7 uses a 32-lead, 5 mm × 5 mm LFCSP package with exposed pad (EPAD), RoHS-compliant and rated for −40°C to +85°C operation. The EPAD must be soldered to PCB ground for thermal and RF performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RFIN (Pin 4) | RF Input | 50 Ω single-ended port; connects directly to antenna feed or bandpass filter output without external matching |
| IFOUT (Pin 30) | IF Output | 75 Ω open-collector output requiring external 5 V bias choke - sets DC operating point for IF amplifier stage |
| VTUNE (Pin 28) | VCO Tuning Voltage | Analog tuning input (0–3 V); driven by charge pump (CPOUT) through external loop filter for PLL lock stability |
| REF/XTAL1 (Pin 14) | Reference Input | Accepts 50 MHz crystal (fundamental mode) or 50 MHz single-ended reference; internally biased to 1.65 V |
| SCLK/SDI/SDO/CS (Pins 26/25/24/27) | SPI Interface | 3.3 V logic, 4-wire serial bus for configuring PLL registers, enabling blocks, and reading back VCO/lock status |
| VPOS1_VCO to VPOS4_IF (Pins 9/12/21/29) | Power Supplies | Four independent 5 V inputs - isolate noise coupling between VCO core, PLL, charge pump, and IF amplifier domains |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RF Balun + LNA | Enables single-ended 50 Ω RF interface while achieving 7 dB SSB noise figure - reduces BOM count and layout complexity |
| Fractional-N PLL with Multicore VCO | Supports fine LO resolution (sub-kHz) and fast lock (<400 µs) across full 16.35–21.15 GHz range without external VCO or loop filter tuning |
| Programmable Injection Mode | Configurable high-side or low-side LO injection via SPI register settings - adapts to system-level frequency planning constraints |
| On-Chip 2× Multiplier | Generates final LO from lower-frequency VCO core (8.175–10.575 GHz), improving phase noise and easing VCO design vs. fundamental K-band oscillation |
| Four Independent LDO Power Rails | Allows domain-specific decoupling and noise filtering - critical for maintaining PLL phase noise and mixer linearity under dynamic load |
Applications
| Satellite Communications Terminal | Point-to-Point Microwave Radio |
|---|---|
Use Scenario: Receive chain in Ka-band VSAT terminal operating at 19.7–20.2 GHz uplink and 29.5–30.0 GHz downlink (with external image-reject filtering). IC Role / Device Role / Timing Role: Primary K-band downconverter generating 950–2150 MHz IF for DVB-S2X demodulation. Use Value: Integrated LNA + mixer + PLL eliminates 3–4 discrete components, reducing size and phase noise contributors in outdoor unit (ODU) design. |
Use Scenario: 5G backhaul radio operating in 18–24 GHz licensed band with 250 MHz channel bandwidth. IC Role / Device Role / Timing Role: High-linearity downconversion stage translating RF to 1.2–1.8 GHz IF for digitization and OFDM processing. Use Value: 16 dBm OIP3 and ±1 dB gain flatness over 250 MHz enable robust 1024-QAM demodulation without per-channel calibration. |
| Ku/Ka-Band Test Equipment Front End | Phased Array Radar Receiver Module |
Use Scenario: Portable spectrum analyzer front end covering 17–22 GHz with real-time bandwidth >100 MHz. IC Role / Device Role / Timing Role: First-stage downconverter providing wide IF output (900–2500 MHz) compatible with high-speed digitizers. Use Value: 36 dB conversion gain and 7 dB NF allow direct connection to 12-bit ADCs without intermediate gain stages, simplifying calibration. |
Use Scenario: T/R module in electronically scanned array for SATCOM-on-the-move, requiring low-latency frequency agility. IC Role / Device Role / Timing Role: Local oscillator and downconversion engine synchronized across multiple modules via shared 50 MHz reference. Use Value: <400 µs PLL lock time and SPI programmability support rapid beam-hopping and frequency hopping waveforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar K-band downconverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC1090LP5E | Discrete GaAs mixer + separate PLL/VCO; no integrated LNA or balun; requires external IF amplification | Lacks integrated RF front end - demands more board space and careful interstage matching | Choose when custom LO architecture or higher output power (>10 dBm) is required beyond ADMV4420ACPZ-RL7's 7 dBm P1dB |
| ADMV1013ACPZ-R7 | Higher-frequency (24–44 GHz) downconverter; no integrated PLL; requires external LO source | Designed for E-band systems - not suitable for K-band without external frequency translation | Choose only for 28 GHz 5G FR2 or 39 GHz fixed wireless; ADMV4420ACPZ-RL7 remains optimal for 17–22 GHz satellite/microwave |
Compared with HMC1090LP5E and ADMV1013ACPZ-R7, the ADMV4420ACPZ-RL7 uniquely integrates RF front end, fractional-N PLL, and IF amplifier in one 5 mm × 5 mm package - delivering lowest component count and fastest time-to-operational RF chain for K-band receive applications.
Availability
ADMV4420ACPZ-RL7 is available at Aetrix Electronics and suitable for satellite communications terminals, point-to-point microwave radios, and phased array radar receiver modules requiring stable component supply, extended temperature operation (−40°C to +85°C), and RoHS-compliant packaging.
Supply support for ADMV4420ACPZ-RL7 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 is a global leader in high-performance analog, mixed-signal, and RF ICs, serving aerospace, defense, communications, and instrumentation markets with precision signal processing solutions.
The ADMV4420ACPZ-RL7 belongs to Analog Devices' ADMV series of highly integrated microwave downconverters, designed specifically to replace multi-chip RF front ends in K-band satellite and terrestrial communication systems.
FAQ
What is the recommended loop filter configuration for the ADMV4420ACPZ-RL7 PLL?
The ADMV4420ACPZ-RL7 datasheet specifies a 60 kHz loop bandwidth with 45° phase margin as the reference design. A third-order passive loop filter is required between CPOUT (Pin 22) and VTUNE (Pin 28), with component values dependent on selected charge pump current (CP_CURRENT register). Analog Devices provides filter design tools and example schematics in Application Note AN-1325 to ensure stable lock and optimal phase noise performance across temperature and voltage variations for the ADMV4420ACPZ-RL7.
Does the ADMV4420ACPZ-RL7 support both high-side and low-side LO injection?
Yes, the ADMV4420ACPZ-RL7 supports configurable high-side and low-side LO injection via SPI register programming. The device's fractional-N PLL and mixer architecture allow either mode across its full RF (16.95–22.05 GHz) and IF (900–2500 MHz) ranges. Performance data for both configurations - including conversion gain, noise figure, and IP3 - are fully characterized in the Rev. A datasheet, enabling system architects to select the optimal injection scheme based on image rejection and local oscillator leakage requirements for their specific ADMV4420ACPZ-RL7 implementation.
How is the IF output of the ADMV4420ACPZ-RL7 biased, and what external components are required?
The ADMV4420ACPZ-RL7 IFOUT (Pin 30) is an open-collector output requiring external 5 V DC bias via a bias choke inductor. A typical implementation uses a 10 µH RF choke in series with a 5 V supply, placed close to Pin 30. A 100 nF AC-coupling capacitor is also required at the output to block DC from downstream circuitry. This biasing scheme establishes the correct quiescent current for the internal IF amplifier, ensuring specified 36 dB conversion gain and 16 dBm output IP3 performance for the ADMV4420ACPZ-RL7.
What is the function of the ENBL0 and ENBL1 pins on the ADMV4420ACPZ-RL7?
ENBL0 (Pin 19) and ENBL1 (Pin 20) are device enable inputs that must be held at 3.3 V for nominal operation of the ADMV4420ACPZ-RL7. These pins control power-up sequencing and functional enablement of internal blocks - tying them high ensures the LNA, mixer, PLL, and IF amplifier are fully operational. Leaving either pin unconnected or pulled low places the corresponding subsystem into sleep mode, reducing total power consumption from 1900 mW (active) to 80 mW (all blocks powered down), as specified in the ADMV4420ACPZ-RL7 datasheet.
Can the ADMV4420ACPZ-RL7 be used with an external 50 MHz clock source instead of a crystal?
Yes, the ADMV4420ACPZ-RL7 supports both crystal and external reference modes on the REF/XTAL1 (Pin 14) input. When using an external 50 MHz single-ended clock, apply it through a 0.01 µF DC-blocking capacitor. The XTAL2/NC (Pin 13) must then be connected to ground via a 1 nF capacitor for AC grounding. The internal 1.65 V bias on REF/XTAL1 accommodates standard LVCMOS logic levels, and the phase frequency detector operates up to 50 MHz - making the ADMV4420ACPZ-RL7 compatible with precision oven-controlled oscillators (OCXOs) or system-level timing sources.
ADMV4420ACPZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- RF Type:
- General Purpose
- Frequency:
- 16.95GHz ~ 22.05GHz
- Number of Mixers:
- 1
- Gain:
- 36dB
- Noise Figure:
- 7dB
- Secondary Attributes:
- Down Converter
- Current - Supply:
- -
- Voltage - Supply:
- 4.75V ~ 5.25V
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-LFCSP (5x5)
ADMV4420ACPZ-RL7 FAQ
1.How can I place an order for ADMV4420ACPZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADMV4420ACPZ-RL7 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 ADMV4420ACPZ-RL7 reliable?
The price and inventory of ADMV4420ACPZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADMV4420ACPZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADMV4420ACPZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADMV4420ACPZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADMV4420ACPZ-RL7?
ADMV4420ACPZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADMV4420ACPZ-RL7 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 ADMV4420ACPZ-RL7?
For technical support, including ADMV4420ACPZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADMV4420ACPZ-RL7 requirements.
6.How does Aetrix verify that ADMV4420ACPZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADMV4420ACPZ-RL7 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 ADMV4420ACPZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADMV4420ACPZ-RL7?
All ADMV4420ACPZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADMV4420ACPZ-RL7, 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 ADMV4420ACPZ-RL7 part is unused and in its original packaging.
Return procedure for ADMV4420ACPZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADMV4420ACPZ-RL7 Tags
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