AD5930

www.DataSheet4U.com Programmable Frequency Sweep and Output Burst Waveform Generator AD5930 FEATURES Programmable frequency profile No external components necessary Output frequency up to 25 MHz Burst and listen capability Preprogrammable frequency profile minimizes number of DSP/µcontroller writes Sinusoidal/triangular/square wave outputs Automatic or single pin control of frequency stepping Waveform starts at known phase Increments at 0° phase or phase continuously Power-down mode: 20 µA Power supply: 2.3 V to 5.5 V Automotive temperature range: −40°C to +125°C 20-lead pb-free TSSOP GENERAL DESCRIPTION The AD59301 is a waveform generator with programmable frequency sweep and output burst capability. 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 and thereby free up valuable DSP/µcontroller resources. Waveforms start from a known phase and are incremented phase continuously, which allows phase shifts to be easily determined. Consuming only 8 mA, the AD5930 provides a convenient low power solution to waveform generation. The AD5930 can be operated in a variety of modes. In continuous output mode, the device outputs the required frequency for a defined length of time and then steps to the next frequency. The length of time the device outputs a particular frequency is either preprogr...