AD9959 chip function introduction: 

• 4 synchronized DDS channels @ 500 MSPS
• Independent frequency/phase/amplitude control between channels
• Matched latencies for frequency/phase/amplitude changes
• Excellent channel-to-channel isolation (>65 dB)
• Linear frequency/phase/amplitude sweeping capability
• Up to 16 levels of frequency/phase/amplitude modulation(pin-selectable)
• 4 integrated 10-bit digital-to-analog converters (DACs)
• Individually programmable DAC full-scale currents
• 0.12 Hz or better frequency tuning resolution
• 14-bit phase offset resolution
• 10-bit output amplitude scaling resolution
• Serial I/O port interface (SPI) with enhanced data throughput
• Software-/hardware-controlled power-down
• Dual supply operation (1.8 V DDS core/3.3 V serial I/O)
• Multiple device synchronization
• Selectable 4× to 20× REFCLK multiplier (PLL)

Module measured waveform: 

Module application

• Agile local oscillators
• Phased array radars/sonars
• Instrumentation
• Synchronized clocking
• RF source for AOTF

Module performance parameters: 

1. The Development board supplied by 5V power，can supplied directly through the USB;
2. AD9959  supplied by +-5V power；
3. Output frequency 0---200M, resolution 1HZ; 
4. The output range 0 - 2VPP (1M high resistance), the amplitude will decrease with the frequency, and the resolution of the magnitude is 1024. 
5. Phase resolution: 0.0022 degree.