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/microcontroller 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.

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/microcontroller 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

APPLICATIONS

Frequency sweeping/radar

Network/impedance measurements

Incremental frequency stimulus

Sensory applications

Proximity and motion

BFSK

Frequency bursting/pulse trains