Data Sheet 400 MSPS, 10-Bit, 1.8 V CMOS
Direct Digital Synthesizer
AD9859 FEATURES APPLICATIONS 400 MSPS internal clock speed
Integrated 10-bit DAC
32-bit tuning word
Phase noise ≤ –120 dBc/Hz at 1 kHz offset (DAC output)
Excellent dynamic performance
>75 dB SFDR at 160 MHz (±100 kHz offset) AOUT
Serial input/output (I/O) control
1.8 V power supply
Software and hardware controlled power-down
48-lead TQFP/EP package
PLL REFCLK multiplier (4× to 20×)
Internal oscillator; can be driven by a single crystal
Phase modulation capability
Multichip synchronization Agile LO frequency synthesis
Programmable clock generators
Test and measurement equipment
Commercial and amateur radio exciter GENERAL DESCRIPTION
The AD9859 is a direct digital synthesizer (DDS) featuring a
10-bit DAC operating at up to 400 MSPS. The AD9859 uses
advanced DDS technology, coupled with an internal high speed,
high performance DAC to form a digitally programmable, …