AD5932屬于集成電路（IC）的直接數(shù)字合成（DDS）。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD5932直接數(shù)字合成（DDS）直接數(shù)字合成 (DDS) 用于由數(shù)字信號生成不同頻率的模擬波形。在必須大范圍掃描的無線系統(tǒng)中可用于頻率控制。主時鐘頻率有 5MHz、16MHz、16.776MHz、25MHz、50MHz、75MHz、125MHz、180MHz、200MHz、250MHz、300MHz、400MHz、500MHz、1GHz、2.5GHz 和 3GHz，分辨率為 10 b、12 b 或 14 b。

GENERAL DESCRIPTION

The AD59321 is a waveform generator offering a programmable frequency scan. Utilizing embedded digital processing that allows enhanced frequency control, the device generates synthesized analog or digital frequency-stepped waveforms. Because frequency profiles are preprogrammed, continuous write cycles are eliminated, thereby freeing up valuable DSP/microcontroller resources. Waveforms start from a known phase and are incremented phase-continuously, which allows phase shifts to be easily determined. Consuming only 6.7 mA, the AD5932 provides a convenient low power solution to waveform generation.

FEATURES

Programmable frequency profile

No external components necessary

Output frequency up to 25 MHz

Preprogrammable frequency profile minimizes number of

DSP/microcontroller writes

Sinusoidal/triangular/square wave outputs

Automatic or single pin control of frequency stepping

Power-down mode: 20 μA

Power supply: 2.3 V to 5.5 V

Automotive temperature range: ?40°C to +125°C

16-lead, Pb-free TSSOP

APPLICATIONS

Frequency scanning/radar

Network/impedance measurements

Incremental frequency stimulus

Sensory applications

Proximity and motion