Overview
The AD9958BCPZ, manufactured by Analog Devices Inc., is a highly advanced 2-channel Direct Digital Synthesizer (DDS) integrated circuit. This device is designed to provide high-performance signal generation with low power dissipation, making it suitable for a wide range of applications including radar, instrumentation, and communications. The AD9958 features two integrated 10-bit digital-to-analog converters (DACs) and operates with a master clock frequency of up to 500 MHz. It supports various modulation schemes such as Frequency Shift Keying (FSK), Phase Shift Keying (PSK), and Amplitude Shift Keying (ASK), as well as linear sweep modes for frequency, phase, or amplitude.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 | |
| Master Clock Frequency | Up to 500 MHz | |
| DAC Resolution | 10-bit | |
| Frequency Tuning Word | 32-bit | |
| Phase Offset | 14 bits | |
| Output Scale Multiplier | 10-bit | |
| Operating Temperature Range | -40°C to +85°C | |
| Modulation Capabilities | FSK, PSK, ASK; Linear Sweep | |
| Serial I/O Port | SPI-compatible, 4 programmable modes |
Key Features
- Advanced DDS technology with low power dissipation and high performance.
- Two integrated 10-bit DACs with excellent wideband and narrow-band SFDR.
- Support for up to 16-level modulation of frequency, phase, or amplitude.
- Linear sweep modes for frequency, phase, or amplitude.
- Synchronization of multiple devices supported.
- SPI-compatible serial I/O port with four programmable modes.
- Dedicated 32-bit frequency tuning word, 14 bits of phase offset, and a 10-bit output scale multiplier for each channel.
- Programmable reference for each DAC to enable different full-scale currents.
Applications
- Radar systems: Utilized for generating complex waveforms and modulations.
- Instrumentation: Used in signal generators, spectrum analyzers, and other test equipment.
- Communications: Employed in wireless communication systems for signal modulation and generation.
- Medical Imaging: Applied in medical imaging equipment such as MRI and ultrasound machines.
- Aerospace and Defense: Used in various military and aerospace applications requiring high-performance signal generation.
Q & A
- What is the maximum master clock frequency of the AD9958?
The maximum master clock frequency of the AD9958 is up to 500 MHz. - How many channels does the AD9958 support?
The AD9958 supports two channels. - What is the resolution of the DACs in the AD9958?
The DACs in the AD9958 have a resolution of 10 bits. - What types of modulation does the AD9958 support?
The AD9958 supports FSK, PSK, ASK, and linear sweep modes for frequency, phase, or amplitude. - Can multiple AD9958 devices be synchronized?
Yes, synchronization of multiple AD9958 devices is supported. - What is the operating temperature range of the AD9958?
The operating temperature range of the AD9958 is -40°C to +85°C. - What type of serial I/O port does the AD9958 have?
The AD9958 has an SPI-compatible serial I/O port with four programmable modes. - How many bits are used for the frequency tuning word in each channel?
Each channel has a dedicated 32-bit frequency tuning word. - What is the phase offset resolution for each channel?
Each channel has 14 bits of phase offset. - Can the full-scale currents for each DAC be programmed differently?
Yes, each DAC has its own programmable reference to enable different full-scale currents.
