Overview
The ADF5709BEZ from Analog Devices Inc. is a high-performance, wideband Voltage-Controlled Oscillator (VCO) designed for a variety of RF and microwave applications. This Monolithic Microwave Integrated Circuit (MMIC) VCO operates over a wide frequency range of 9.85 GHz to 20.5 GHz, making it ideal for applications requiring precise frequency control and flexibility. The device is powered by a single 5 V supply, consuming only 70 mA of supply current, which is beneficial for high-performance applications with limited power budgets and no airflow. The ADF5709BEZ is encapsulated in a compact, RoHS-compliant 24-terminal ceramic leadless chip carrier (LCC) package, enhancing thermal characteristics and reducing board space requirements.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Frequency (fOUT) | 9.85 GHz | 20.5 GHz | |||
| Drift Rate | 0.5 MHz/°C | ||||
| Pulling | 15 MHz p-p | Pulling into a 2.0:1 VSWR | |||
| Pushing | -240 MHz/V | Frequency = 20.5 GHz | |||
| Output Power (POUT) | -4.5 dBm | 0 dBm | +2 dBm | Temperature = 25°C | |
| Supply Current (ICC) | 70 mA | 87 mA | |||
| Harmonics, Subharmonics (Second) | -15 dBc | Measured to 16.67 GHz due to test equipment limitation | |||
| Harmonics, Subharmonics (Third) | -30 dBc | Measured to 16.67 GHz due to test equipment limitation | |||
| Tuning Voltage (VTUNE) | -0.5 V | +23 V | |||
| Tuning Sensitivity | 220 MHz/V | 870 MHz/V | 9.8 GHz to 20.5 GHz only | ||
| Single Sideband Phase Noise (10 kHz Offset) | -51 dBc/Hz | ||||
| Single Sideband Phase Noise (100 kHz Offset) | -83 dBc/Hz | ||||
| Single Sideband Phase Noise (1 MHz Offset) | -115 dBc/Hz | ||||
| Single Sideband Phase Noise (10 MHz Offset) | -135 dBc/Hz | ||||
| Operating Supply Voltage | 5 V | 5.5 V | |||
| Operating Temperature | -40°C | +85°C |
Key Features
- High gain and low noise figure
- Wideband frequency response from 9.85 GHz to 20.5 GHz
- Excellent linearity and distortion performance
- Low power consumption with a single 5 V supply and 70 mA current
- Optimal noise performance and minimal power dissipation
- Monolithic construction with integrated resonator, negative resistance device, and varactor diode
- Low input impedance on the VTUNE pin for high tuning speed and modulation bandwidth
- Compact, RoHS-compliant 24-terminal ceramic leadless chip carrier (LCC) package
- Internal cascode buffer amplifier for stable output power across the frequency range
Applications
- Industrial and medical equipment
- Test and measurement equipment
- Military radars, electronic warfare (EW), and electronic countermeasures (ECMs)
- Point to point and multipoint radios
- Very small aperture terminals (VSATs)
- Wireless communication infrastructure
Q & A
- What is the frequency range of the ADF5709BEZ?
The ADF5709BEZ operates over a frequency range of 9.85 GHz to 20.5 GHz.
- What is the supply voltage and current for the ADF5709BEZ?
The device operates from a single 5 V supply and consumes 70 mA of supply current.
- What is the tuning voltage range for the ADF5709BEZ?
The tuning voltage (VTUNE) ranges from -0.5 V to +23 V.
- What are the key features of the ADF5709BEZ?
Key features include high gain, low noise figure, wideband frequency response, excellent linearity, and low power consumption.
- What are the typical applications of the ADF5709BEZ?
Applications include industrial and medical equipment, test and measurement equipment, military radars, and wireless communication infrastructure.
- What is the package type and size of the ADF5709BEZ?
The device is packaged in a 24-terminal ceramic leadless chip carrier (LCC) with dimensions of 3.90 mm × 3.90 mm.
- How does the ADF5709BEZ improve board design complexity?
The broad frequency coverage reduces the need for multiple narrow-band VCOs, simplifying board design and the bill of materials.
- What are the phase noise specifications of the ADF5709BEZ?
The single sideband phase noise is -51 dBc/Hz at 10 kHz offset, -83 dBc/Hz at 100 kHz offset, and -135 dBc/Hz at 10 MHz offset.
- Is the ADF5709BEZ RoHS compliant?
Yes, the ADF5709BEZ is RoHS compliant.
- What evaluation board is available for the ADF5709BEZ?
The EV-ADF5709 evaluation board is available to evaluate the performance of the ADF5709BEZ.
