ADI AD9954YSVZ-REEL7

The AD9954 is a direct digital synthesizer (DDS) that uses advanced 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 160 MHz. The AD9954 enables fast frequency hopping coupled with fine tuning of both frequency [0.01 Hz or better] and phase [0.022° granularity]. The AD9954 is programmed via a high speed serial I/O port. The device includes static RAM to support flexible frequency sweep capability in several modes, plus a user - defined linear sweep mode of operation. Also included is an on - chip high speed comparator for applications requiring a square wave output. An on - chip oscillator and PLL circuitry provide users with multiple approaches to generate the device’s system clock.

• 400 MSPS internal clock speed
• Integrated 14 - bit DAC
• Programmable phase/amplitude dithering
• 32 - bit frequency tuning accuracy
• 14 - bit phase tuning accuracy
• Phase noise better than –120 dBc/Hz
• Excellent dynamic performance >80 dB narrowband SFDR
• Serial input/output (I/O) control
• Ultrahigh speed analog comparator
• Automatic linear and nonlinear frequency sweeping
• 4 frequency/phase offset profiles
• 1.8 V power supply
• Software and hardware controlled power - down
• 48 - lead TQFP
• Integrated 1024 word ×32/3 - bit RAM
• PLL - based REFCLK multiplier
• Internal oscillator, can be driven by a single crystal
• Phase modulation capability
• Multichip synchronization

• Agile LO frequency synthesis
• Programmable clock generators
• FM chirp source for radar and scanning systems
• Automotive radars
• Test and measurement equipment
• Acousto - optic device drivers