Overview
The AD9914/PCBZ, produced by Analog Devices Inc., is a high-performance direct digital synthesizer (DDS) that integrates a 12-bit digital-to-analog converter (DAC). This device leverages advanced DDS technology to generate frequency-agile analog output sinusoidal waveforms up to 1.4 GHz. The AD9914 is designed for applications requiring fast frequency hopping, fine tuning resolution, and high-speed modulation capabilities. It operates over an extended industrial temperature range and supports both serial and parallel input/output control, making it versatile for various high-frequency synthesis needs.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Internal Clock Speed | 3.5 GSPS | ||
| DAC Resolution | 12-bit | ||
| Frequency Tuning Resolution | 190 pHz | Programmable modulus mode | |
| Phase Tuning Resolution | 16-bit | ||
| Amplitude Scaling | 12-bit | ||
| Power Supplies | 1.8 V, 3.3 V | V | |
| Package Type | 88-lead LFCSP | ||
| Phase Noise | −128 dBc/Hz (1 kHz offset at 1396 MHz) | dBc/Hz | |
| Wideband SFDR | < −50 dBc | dBc |
Key Features
- Advanced DDS technology with internal high-speed, high-performance DAC
- Fast frequency hopping and fine tuning resolution (64-bit capable using programmable modulus mode)
- Fast phase and amplitude hopping capability
- Automatic linear and nonlinear frequency sweeping capability
- 32-bit parallel datapath interface for high data rates
- 8 frequency/phase offset profiles
- Phase modulation and amplitude modulation capabilities
- Serial or parallel input/output control
- Software and hardware controlled power-down
- PLL REF CLK multiplier and phase noise reduction features
Applications
- Agile LO frequency synthesis
- Programmable clock generator
- FM chirp source for radar and scanning systems
- Test and measurement equipment
- Acousto-optic device drivers
- Polar modulator
- Fast frequency hopping
Q & A
- What is the internal clock speed of the AD9914?
The internal clock speed of the AD9914 is 3.5 GSPS. - What is the resolution of the DAC in the AD9914?
The DAC resolution is 12-bit. - What is the frequency tuning resolution of the AD9914?
The frequency tuning resolution is 190 pHz, with 64-bit capability using programmable modulus mode. - Does the AD9914 support phase modulation?
Yes, the AD9914 supports phase modulation. - What are the power supply options for the AD9914?
The AD9914 operates with 1.8 V and 3.3 V power supplies. - What is the package type of the AD9914?
The package type is an 88-lead LFCSP. - What is the phase noise performance of the AD9914?
The phase noise is −128 dBc/Hz at a 1 kHz offset at 1396 MHz. - Can the AD9914 be controlled via serial or parallel interfaces?
Yes, the AD9914 supports both serial and parallel input/output control. - Does the AD9914 have power-down capabilities?
Yes, the AD9914 has software and hardware controlled power-down features. - What are some common applications of the AD9914?
Common applications include agile LO frequency synthesis, programmable clock generators, FM chirp sources for radar, test and measurement equipment, and more.
