ADL5385ACPZ - 30MHz-2.2GHz Quadrature Modulator | Analog Devices
N.º de pieza: ADL5385ACPZ ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $12.5 | $12,50 |
| 10 | $11.25 | $112,50 |
| 100 | $10 | $1.000,00 |
| 500 | $8.75 | $4.375,00 |
| 1.000 | $7.88 | $7.880,00 |
ADL5385ACPZ Descripción general
A quadrature modulator is a key building block in modern communication transmitters, converting baseband I/Q signals into a modulated RF output. It is essential for digital modulation schemes such as QPSK, QAM, and OFDM, which are widely used in wireless standards including LTE, Wi-Fi, and point-to-point microwave links. The ADL5385's excellent phase accuracy and amplitude balance ensure minimal error vector magnitude (EVM), which is critical for high data-rate links.
Key features of the ADL5385ACPZ include a wide operating frequency range of 30 MHz to 2200 MHz, high output linearity, and low noise. The device operates from a single 5 V supply and features a differential baseband interface with a common-mode voltage of approximately 2.5 V. It provides a differential RF output that can be used with an external balun to convert to single-ended. The modulator also includes an enable function for power-down control, reducing quiescent current when not in use.
Technically, the ADL5385 uses a double-balanced mixer architecture with integrated quadrature phase splitting. The LO input is internally divided into I and Q phases, and each is mixed with the corresponding baseband signal. The outputs are summed to produce the modulated RF signal. The device achieves high sideband suppression and carrier feedthrough performance, which are essential for spectral purity. The baseband inputs accept a wide common-mode range, simplifying interface to DACs and baseband processors.
Typical applications include cellular base stations, microwave point-to-point radios, satellite communications, and test equipment. The ADL5385 is also suitable for software-defined radio (SDR) transmitters where flexibility and performance are paramount. Its wide frequency range covers multiple bands, reducing the need for multiple modulators.
When designing with the ADL5385ACPZ, ensure proper grounding and decoupling of the supply pins. The exposed pad should be soldered to a low-impedance ground plane for optimal thermal and RF performance. The baseband inputs should be driven with differential signals to maintain balance and minimize even-order distortion.
Alternativas directas para ADL5385ACPZ — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ADL5385ACPZ (mismo factor de forma y huella) — difiere en Package.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ADL5385ACPZ-R7
✅ Sustitución directa✓ En stock
$8 / unidad
Ver hoja de datos →ADL5385ACPZ-R2
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADL5385ACPZ-WP
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADL5385ACPZ-RL7
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADL5385ACPZ-RL
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ADL5385ACPZ Especificaciones
| Función | Quadrature Modulator |
| Frequency Range | 30 MHz to 2200 MHz |
| Tensión de alimentación | 5 V |
| Baseband Interface | Differential |
| Baseband Common-Mode Voltage | 2.5 V (typical) |
| RF Output | Differential |
| Encapsulado | 24-Lead LFCSP (4x4 mm) |
| Tipo de montaje | Surface Mount |
| Rango de temperatura de funcionamiento | -40°C to +85°C |
| Enable Function | Yes |
| Estado RoHS | Compliant |
Configuración de pines de ADL5385ACPZ
| Pin 1 | GND — Ground |
| Pin 2 | IBBP — Positive I baseband input |
| Pin 3 | IBBN — Negative I baseband input |
| Pin 4 | QBBP — Positive Q baseband input |
| Pin 5 | QBBN — Negative Q baseband input |
| Pin 6 | GND — Ground |
| Pin 7 | EN — Enable (active high) |
| Pin 8 | VPOS — Positive supply (5V) |
| Pin 9 | LOIP — Positive LO input |
| Pin 10 | LOIN — Negative LO input |
| Pin 11 | GND — Ground |
| Pin 12 | RFOUTP — Positive RF output |
| Pin 13 | RFOUTN — Negative RF output |
| Pin 14 | GND — Ground |
| Pin 15 | GND — Ground |
| Pin 16 | GND — Ground |
| Pin 17 | GND — Ground |
| Pin 18 | GND — Ground |
| Pin 19 | GND — Ground |
| Pin 20 | GND — Ground |
| Pin 21 | GND — Ground |
| Pin 22 | GND — Ground |
| Pin 23 | GND — Ground |
| Pin 24 | GND — Ground |
Aplicaciones típicas
ADL5385ACPZ es adecuado para 6 aplicacións: Cellular Base Stations, Microwave Point-to-Point Radios, Satellite Communications, Test and Measurement Equipment, Software-Defined Radio (SDR), Wireless Infrastructure.
Cellular Base Stations
The ADL5385ACPZ is ideal for cellular base station transmitters, operating from 30 MHz to 2200 MHz to cover GSM, WCDMA, and LTE bands. Its excellent phase accuracy and amplitude balance ensure low EVM, critical for high-order QAM modulation. The differential baseband interface simplifies connection to DACs, and the 5 V supply is common in base station designs. The device's high linearity helps meet spectral emission masks, while the enable function allows power saving during idle periods.
Recomendado
Microwave Point-to-Point Radios
For microwave point-to-point links, the ADL5385ACPZ provides direct RF modulation up to 2.2 GHz, covering licensed bands. Its low noise and high linearity support high-capacity links with 256-QAM or higher. The differential RF output can drive a balun to feed the antenna, and the wide frequency range allows a single design to cover multiple bands. The compact LFCSP package is suitable for outdoor units where space is limited.
Recomendado
Satellite Communications
The ADL5385ACPZ supports satellite communication uplinks in L-band and S-band, with frequencies up to 2.2 GHz. Its high performance ensures reliable links with low error rates. The device's enable function allows power management in battery-powered satellite terminals. The differential baseband interface is compatible with common satellite modem chipsets, and the 5 V supply simplifies power design.
Recomendado
Test and Measurement Equipment
In test equipment such as signal generators and vector modulators, the ADL5385ACPZ provides accurate I/Q modulation over a wide frequency range. Its excellent phase accuracy and amplitude balance enable precise generation of complex modulation formats. The device's differential interface allows easy integration with arbitrary waveform generators, and the enable function supports automated test sequences. The compact package is ideal for benchtop instruments.
Recomendado
Software-Defined Radio (SDR)
The ADL5385ACPZ is well-suited for SDR transmitters, covering 30 MHz to 2200 MHz to support multiple bands with a single hardware platform. Its wide frequency range and high performance enable flexible modulation schemes. The differential baseband interface connects directly to SDR DACs, and the enable function allows dynamic power management. The device's small footprint is ideal for compact SDR modules.
Recomendado
Wireless Infrastructure
The ADL5385ACPZ is used in wireless infrastructure such as repeaters and distributed antenna systems. Its wide frequency range covers multiple cellular bands, and its high linearity ensures minimal distortion. The device's enable function supports remote power control, and the differential interface simplifies connection to baseband processors. The 5 V supply is standard in infrastructure equipment.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ADL5385ACPZ — comparación, orientación de diseño e información de cumplimiento.
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Comparación con alternativas
| Parámetro | Este producto | ADL5385ACPZ-R7 | ADL5385ACPZ-R2 | ADL5385ACPZ-WP |
|---|---|---|---|---|
| Package | 24-Lead LFCSP | 24-Lead LFCSP | 24-Lead LFCSP | 24-Lead LFCSP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Frequency Range | 30 MHz to 2200 MHz | 30 MHz to 2200 MHz | 30 MHz to 2200 MHz | 30 MHz to 2200 MHz |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| Baseband Interface | Differential | Differential | Differential | Differential |
| RF Output | Differential | Differential | Differential | Differential |
| Enable Function | Yes | Yes | Yes | Yes |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C |
Diferenciadores clave
- Wide frequency range from 30 MHz to 2200 MHz (frente a ADL5385ACPZ-R7)
- Excellent phase accuracy and amplitude balance (frente a ADL5385ACPZ-R7)
- Single 5 V supply operation (frente a ADL5385ACPZ-R7)
Notas de diseño
Ensure the exposed pad is soldered to a low-impedance ground plane for optimal thermal and RF performance. Use multiple vias under the pad to enhance heat dissipation and reduce ground inductance.
Decouple the VPOS pin with a 100 nF capacitor placed as close as possible to the pin, and a 10 uF bulk capacitor nearby. This ensures stable operation and minimizes supply noise that could affect modulation quality.
Keep the differential baseband traces matched in length and impedance to maintain I/Q balance. Use 50-ohm differential microstrip or stripline for RF output traces to minimize reflections and signal loss.
Información de cumplimiento
RoHS compliant per Analog Devices product page. Other compliance data not specified in provided sources.
