AD9913

Data Sheet Low Power 250 MSPS 10-Bit DAC 1.8 V CMOS Direct Digital Synthesizer AD9913 FEATURES 50 mW at up to 250 MSPS internal clock speed 100 MHz analog output Integrated 10-bit DAC 0.058 Hz or better frequency resolution 0.022° phase tuning resolution Programmable modulus in frequency equation Phase noise ≤ –135 dBc per Hz @ 1 kHz offset (DAC output) (<115 dBc per Hz when using on-board PLL multiplier) Excellent dynamic performance >80 dB SFDR @ 100 MHz (±100 kHz offset) AOUT Automatic linear frequency sweeping capability 8 frequency or phase offset profiles 1.8 V power supply Software and hardware controlled power-down Parallel and serial programming options 32-lead LFCSP package Optional PLL REF_CLK multiplier Internal oscillator (can be driven by a single crystal) Phase modulation capability APPLICATIONS Portable and handheld equipment Agile LO frequency synthesis Programmable clock generator FM chirp source for radar and scanning systems GENERAL DESCRIPTION The AD9913 is a complete direct digital synthesizer (DDS) designed to meet the stringent power consumption limits of portable, handheld, and battery-powered equipment. The AD9913 features a 10-bit digital-to-analog converter (DAC) operating up to 250 MSPS. The AD9913 uses advanced DDS technology, coupled with an internal high speed, high performance DAC to form a complete, digitally-programmable, high frequency synthesizer capable of generating a frequency agile analog output sinusoidal waveform at up to 100 MHz....