Overview
The ADF5901WCCPZ-RL7, produced by Analog Devices Inc., is a 24 GHz Tx monolithic microwave integrated circuit (MMIC) designed for radar systems. This component integrates a 24 GHz voltage-controlled oscillator (VCO) with a power gain amplifier (PGA) and dual transmit (Tx) channels. The on-chip VCO generates the 24 GHz signal for the two Tx channels and the local oscillator (LO) output. Each Tx channel includes a power control circuit, and the device also features an on-chip temperature sensor. Control of all on-chip registers is managed through a simple 4-wire interface. The ADF5901 comes in a compact 32-lead, 5 mm × 5 mm LFCSP package.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Operating Temperature Range | -40°C | +105°C | °C | ||
| RF Frequency Range | 24 GHz | 24.25 GHz | GHz | ||
| VTUNE Voltage | 1 V | 2.8 V | V | ||
| VTUNE Impedance | 100 kΩ | kΩ | |||
| VCO Phase Noise at 100 kHz Offset | -88 dBc/Hz | dBc/Hz | |||
| VCO Phase Noise at 1 MHz Offset | -108 dBc/Hz | dBc/Hz | |||
| VCO Phase Noise at 10 MHz Offset | -128 dBc/Hz | dBc/Hz | |||
| ADC Resolution | 8 Bits | ||||
| Integral Nonlinearity (INL) | ±1 LSB | ||||
| Differential Nonlinearity (DNL) | ±1 LSB | ||||
| Least Significant Bit (LSB) | 7.4 mV | mV |
Key Features
- On-chip 24 GHz VCO with PGA and dual Tx channels for radar systems.
- Each Tx channel includes a power control circuit.
- On-chip temperature sensor.
- Control of all on-chip registers through a simple 4-wire interface.
- Compact 32-lead, 5 mm × 5 mm LFCSP package.
- Operating temperature range from -40°C to +105°C.
- High phase noise performance: -88 dBc/Hz at 100 kHz offset, -108 dBc/Hz at 1 MHz offset, and -128 dBc/Hz at 10 MHz offset.
- 8-bit ADC with ±1 LSB integral and differential nonlinearity.
Applications
- Radar systems: The ADF5901 is specifically designed for use in radar systems, providing the necessary frequency generation and amplification.
- Surveillance and security: Its high-frequency capabilities make it suitable for advanced surveillance and security applications.
- Industrial and automotive radar: Used in various industrial and automotive radar applications where high precision and reliability are required.
Q & A
- What is the operating frequency range of the ADF5901?
The ADF5901 operates within the 24 GHz to 24.25 GHz frequency range.
- What type of package does the ADF5901 come in?
The ADF5901 comes in a compact 32-lead, 5 mm × 5 mm LFCSP package.
- What is the operating temperature range of the ADF5901?
The operating temperature range is from -40°C to +105°C.
- What are the key features of the ADF5901's VCO?
The VCO features high phase noise performance, with values of -88 dBc/Hz at 100 kHz offset, -108 dBc/Hz at 1 MHz offset, and -128 dBc/Hz at 10 MHz offset.
- How is the control of the on-chip registers managed?
The control of all on-chip registers is managed through a simple 4-wire interface.
- What additional components are included on the chip?
In addition to the VCO and PGA, the chip includes dual Tx channels, power control circuits, and an on-chip temperature sensor.
- What is the resolution of the ADC on the ADF5901?
The ADC resolution is 8 bits.
- What are the typical applications of the ADF5901?
The ADF5901 is typically used in radar systems, surveillance and security, and industrial and automotive radar applications.
- How does the REF input work on the ADF5901?
The REF input is a CMOS input that can be driven from a TTL or CMOS crystal oscillator or ac-coupled. It has a nominal threshold of DVDD/2 and a dc equivalent input resistance of 100 kΩ.
- What is the supply voltage range for the digital section of the ADF5901?
The digital power supply (DVDD) may range from 3.135 V to 3.465 V.
