ADMV4821B - 24-29.5GHz Dual-Pol Beamformer | Analog Devices
Référence : ADMV4821B ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $100 | $100,00 |
| 10 | $90 | $900,00 |
| 100 | $80 | $8 000,00 |
| 500 | $70 | $35 000,00 |
| 1 000 | $60 | $60 000,00 |
ADMV4821B Présentation
A beamformer is a key component in phased-array systems that electronically steers the antenna beam by adjusting the phase and amplitude of signals across multiple antenna elements. The ADMV4821B belongs to the class of RF beamforming ICs, which are essential in modern 5G NR and radar systems. By integrating multiple channels and dual polarization, it reduces the component count and PCB area compared to discrete implementations, enabling compact and cost-effective antenna modules.
Key features include a wide RF frequency range of 24 GHz to 29.5 GHz, 16 TX and 16 RX channels, dual polarization support, and matched 50-ohm single-ended interfaces. The device is recommended for new designs, indicating active lifecycle status. It is packaged in a compact BCCZ package, suitable for surface-mount assembly, and is designed to meet the stringent performance requirements of 5G infrastructure.
Technically, the ADMV4821B integrates phase shifters, gain amplifiers, and T/R switches on a single die, providing precise beam control. The dual-polarization capability allows simultaneous transmission and reception on both horizontal and vertical polarizations, doubling the data throughput in MIMO systems. The device is controlled via a serial interface, enabling fast beam steering and calibration.
Typical applications include 5G NR base stations, phased-array antennas, satellite communications, and radar systems. Its wide frequency coverage and dual-polarization support make it ideal for massive MIMO and beamforming networks. The device's high integration reduces system complexity and power consumption, making it suitable for dense antenna arrays.
When designing with the ADMV4821B, careful attention must be paid to thermal management and RF layout. The device's thermal resistance values are simulated based on JEDEC specifications (JESD51-12), so proper PCB design with adequate ground vias and heat sinking is critical. Additionally, the RF inputs and outputs are single-ended 50-ohm, requiring proper impedance matching to minimize reflections.
Alternatives de remplacement direct pour ADMV4821B — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ADMV4821B (même facteur de forme et même empreinte).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ADMV4821
✅ Remplacement direct✓ En stock
$90 / unité
Voir la fiche technique →ADMV4821BCCZ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADMV4828
⚡ Même boîtier ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
ADMV4821B Spécifications
| RF Frequency Range | 24 GHz to 29.5 GHz |
| 5G NR Bands | n257, n258, n261 |
| Number of TX Channels | 16 |
| Number of RX Channels | 16 |
| Polarization | Horizontal and Vertical |
| RF Interface | Matched 50-ohm single-ended |
| Boîtier | BCCZ |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Guide de configuration des broches du ADMV4821B bccz
Configuration des broches du ADMV4821B (boîtier bccz). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour ADMV4821B.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ADMV4821B convient pour 6 applications: 5G NR Base Stations, Phased-Array Antennas, Satellite Communications, Radar Systems, Point-to-Point Communications, Test and Measurement.
5G NR Base Stations
The ADMV4821B is ideal for 5G NR base stations operating in the n257, n258, and n261 bands. Its 24-29.5 GHz frequency range and 16 TX/RX channels enable massive MIMO beamforming, providing high data throughput and spectral efficiency. The dual-polarization support doubles capacity by transmitting and receiving on both polarizations simultaneously. The integrated beamformer reduces component count and PCB area, simplifying the design of compact antenna modules. With matched 50-ohm single-ended RF ports, it interfaces directly with antenna elements, minimizing signal loss. The device's high integration and performance make it a key enabler for 5G infrastructure.
Recommandé
Phased-Array Antennas
The ADMV4821B is designed for phased-array antenna systems, offering 16 TX and 16 RX channels with precise phase and amplitude control. Its dual-polarization capability allows independent beam steering on horizontal and vertical polarizations, enhancing system flexibility. The wide frequency range covers multiple 5G bands, making it suitable for reconfigurable antenna systems. The integrated beamformer reduces the need for external phase shifters and amplifiers, lowering system cost and complexity. The device's matched 50-ohm single-ended interfaces simplify connection to antenna elements, ensuring optimal power transfer. This makes the ADMV4821B an excellent choice for advanced phased-array applications.
Recommandé
Satellite Communications
The ADMV4821B supports satellite communication systems operating in the 24-29.5 GHz frequency range, which includes Ka-band uplink frequencies. Its 16 TX and 16 RX channels enable high-throughput beamforming for satellite ground terminals. The dual-polarization support increases spectral efficiency by using both polarizations for data transmission. The device's high integration reduces the size and weight of the RF front-end, which is critical for space-constrained applications. The matched 50-ohm single-ended interfaces simplify integration with antennas and other RF components. The ADMV4821B's performance and reliability make it suitable for demanding satellite communication environments.
Recommandé
Radar Systems
The ADMV4821B can be used in radar systems operating in the 24-29.5 GHz band, such as automotive radar and surveillance radar. Its 16 TX and 16 RX channels allow for high-resolution beamforming, improving target detection and tracking. The dual-polarization capability enhances radar performance by providing additional information about the target's polarization signature. The wide frequency range supports multiple radar applications, from short-range to long-range. The integrated beamformer reduces system complexity and power consumption, making it suitable for portable and mobile radar systems. The device's matched 50-ohm single-ended interfaces ensure easy integration with radar antennas and front-end components.
Recommandé
Point-to-Point Communications
The ADMV4821B is suitable for point-to-point communication links in the 24-29.5 GHz band, providing high-capacity backhaul for 5G networks. Its 16 TX and 16 RX channels enable advanced beamforming to maintain a reliable link over long distances. The dual-polarization support doubles the data rate by using both polarizations for transmission. The device's high integration reduces the size and cost of the RF unit, making it ideal for small cell backhaul and fixed wireless access. The matched 50-ohm single-ended interfaces simplify connection to antennas and waveguides. The ADMV4821B's performance ensures high throughput and low latency for demanding communication applications.
Recommandé
Test and Measurement
The ADMV4821B can be used in test and measurement equipment for 5G and radar systems, providing a flexible platform for beamforming characterization. Its 16 TX and 16 RX channels allow for comprehensive testing of phased-array antennas and beamforming algorithms. The dual-polarization support enables testing of polarization diversity schemes. The wide frequency range covers multiple 5G bands, making it a versatile tool for R&D and production testing. The device's integrated beamformer simplifies the test setup by reducing the number of external components. The matched 50-ohm single-ended interfaces ensure accurate signal measurement. The ADMV4821B is an essential component for validating 5G and radar systems.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ADMV4821B — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ADMV4821 | ADMV4821BCCZ | ADMV4828 |
|---|---|---|---|---|
| Package | BCCZ | BCCZ | BCCZ | BCCZ |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
Principaux différenciateurs
- Dual-polarization support (vs ADMV4828)
- Wide frequency range covering n257, n258, n261 (vs ADMV4828)
- 16 TX and 16 RX channels (vs ADMV4828)
Notes de conception
The ADMV4821B's thermal resistance values are simulated based on JEDEC specifications (JESD51-12). Proper thermal management is critical; ensure adequate PCB copper area and thermal vias under the exposed pad. For high-power operation, consider a heatsink or forced air cooling. Refer to the datasheet for specific thermal resistance values.
For optimal RF performance, maintain 50-ohm impedance on all RF traces. Use controlled impedance PCB materials and minimize trace lengths. Place decoupling capacitors close to the power pins. Follow the layout guidelines in the ADMV4821 datasheet to avoid signal integrity issues.
Ensure the RF inputs and outputs are properly matched to 50 ohms to avoid reflections. Do not exceed the maximum supply voltage or operating temperature. Verify the control interface timing and voltage levels as specified in the datasheet. Incorrect configuration can lead to beamforming errors.
Informations de conformité
RoHS compliance is assumed based on Analog Devices standard practice, but not explicitly stated in the verified data. Other compliance information is not available.
