Overview
The AD9854ASVZ is a highly integrated digital synthesizer produced by Analog Devices Inc. This device utilizes advanced Direct Digital Synthesis (DDS) technology, combined with two internal high-speed, high-performance quadrature Digital-to-Analog Converters (DACs). It is designed to serve as a synthesized Local Oscillator (LO), an agile clock generator, or an FSK/BPSK modulator. The AD9854ASVZ generates highly stable, frequency-phase, and amplitude-programmable sine and cosine outputs, making it suitable for various applications in communications, radar, and other fields.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Frequency Resolution | 1 μHz | |||
| SYSCLK Frequency | 20 MHz (ASTZ), 30 MHz (ASVZ) | 300 MHz | Hz | |
| Output Frequency Range | Up to 150 MHz | Hz | ||
| Phase Resolution | 16 bits | |||
| DAC Resolution | 12 bits | |||
| Supply Voltage | 3.0 V | 3.3 V | 3.6 V | V |
| Operating Temperature Range | -40°C | +85°C | °C | |
| Residual Phase Noise (1 kHz Offset, 5 MHz AOUT) | -140 dBc/Hz | dBc/Hz | ||
| Clock Generator Output Jitter (5 MHz AOUT) | 23 ps rms | ps | ||
Key Features
- Advanced DDS technology with 48-bit frequency resolution and 1 μHz tuning resolution.
- Simultaneous quadrature output signals up to 150 MHz, with a tuning rate of up to 100 million new frequencies per second.
- 12-bit I and Q DACs providing excellent wideband and narrow-band output SFDR.
- Internal comparator for converting sine wave outputs to square waves for agile clock generator applications.
- Two 14-bit phase registers and a single pin for BPSK operation, with I/O interface support for higher-order PSK operations.
- Pin-for-pin compatibility with the AD9852 single-tone synthesizer.
- Operation on a single 3.3 V supply using 0.35 µm CMOS technology.
Applications
- Communications systems requiring agile LOs and clock generators.
- Radar systems needing high-frequency stability and precision.
- FSK/BPSK modulation in various wireless communication systems.
- Test and measurement equipment requiring high-frequency signal generation.
Q & A
- What is the primary function of the AD9854ASVZ?
The AD9854ASVZ is a digital synthesizer that can be configured as a synthesized LO, an agile clock generator, or an FSK/BPSK modulator. - What is the frequency resolution of the AD9854ASVZ?
The AD9854ASVZ has a frequency resolution of 1 μHz with a 48-bit DDS core. - What is the maximum output frequency of the AD9854ASVZ?
The maximum output frequency is up to 150 MHz. - What is the supply voltage range for the AD9854ASVZ?
The supply voltage range is 3.0 V to 3.6 V, with a typical voltage of 3.3 V. - What is the operating temperature range of the AD9854ASVZ?
The operating temperature range is from -40°C to +85°C. - How many phase registers does the AD9854ASVZ have?
The AD9854ASVZ has two 14-bit phase registers. - What is the DAC resolution of the AD9854ASVZ?
The DAC resolution is 12 bits for both I and Q channels. - Is the AD9854ASVZ compatible with other Analog Devices products?
Yes, it is pin-for-pin compatible with the AD9852 single-tone synthesizer. - What technology is used in the AD9854ASVZ?
The AD9854ASVZ uses 0.35 µm CMOS technology. - What are some common applications of the AD9854ASVZ?
Common applications include communications systems, radar systems, and test and measurement equipment.
