Overview
The ADF4159CCPZ from Analog Devices Inc. is a 13 GHz, fractional-N frequency synthesizer designed for high-performance applications requiring precise frequency generation and modulation capabilities. This device integrates a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider, enabling subhertz frequency resolution through its 25-bit fixed modulus. It supports various waveform generation, including sawtooth, triangular, and parabolic waveforms, as well as frequency shift keying (FSK) and phase shift keying (PSK) modulation. The ADF4159CCPZ is particularly suited for applications in FMCW radars, communications test equipment, and communications infrastructure.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Analog Power Supply (AVDD, VP) | 2.7 V | 3.45 V | V | ||
| Digital Power Supply (DVDD, SDVDD) | 1.62 V | 1.98 V | V | ||
| RF Input Frequency (RFIN) | 0.5 GHz | 13 GHz | GHz | ||
| PFD Frequencies | 110 MHz | MHz | |||
| Phase Noise Floor | −224 dBc/Hz | dBc/Hz | Normalized phase noise floor | ||
| Charge Pump Current | 4.8 mA | mA | ICP_MAX | ||
| Package Type | 24-Pin LFCSP EP |
Key Features
- High and low speed FMCW ramp generation
- 25-bit fixed modulus for subhertz frequency resolution
- Support for FSK and PSK modulation
- Sawtooth, triangular, and parabolic waveform generation
- Ramp superimposed with FSK and different sweep rates
- Ramp delay, frequency readback, and interrupt functions
- Programmable phase control
- 3-wire serial interface
- Digital lock detect
- ESD performance: 3000 V HBM, 1000 V CDM
- Qualified for automotive applications
Applications
- FMCW radars
- Communications test equipment
- Communications infrastructure
Q & A
- What is the frequency range of the ADF4159CCPZ?
The ADF4159CCPZ operates in the RF input frequency range of 0.5 GHz to 13 GHz. - What is the power supply range for the ADF4159CCPZ?
The analog power supply range is 2.7 V to 3.45 V, and the digital power supply range is 1.62 V to 1.98 V. - What type of modulation does the ADF4159CCPZ support?
The device supports frequency shift keying (FSK) and phase shift keying (PSK) modulation. - What waveforms can the ADF4159CCPZ generate?
The ADF4159CCPZ can generate sawtooth, triangular, and parabolic waveforms. - What is the phase noise floor of the ADF4159CCPZ?
The normalized phase noise floor is −224 dBc/Hz. - What is the maximum charge pump current of the ADF4159CCPZ?
The maximum charge pump current is 4.8 mA. - What is the package type of the ADF4159CCPZ?
The device is packaged in a 24-Pin LFCSP EP. - Is the ADF4159CCPZ qualified for automotive applications?
Yes, the ADF4159CCPZ is qualified for automotive applications. - What is the ESD performance of the ADF4159CCPZ?
The ESD performance is 3000 V HBM and 1000 V CDM. - How is the ADF4159CCPZ controlled?
The device is controlled via a simple 3-wire serial interface.
