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2.5 GSPS Direct Digital Synthesizer
with 12-Bit DAC
AD9915 Data Sheet FUNCTIONAL BLOCK DIAGRAM 2.5 GSPS internal clock speed
Integrated 12-bit DAC
Frequency tuning resolution to 135 pHz
16-bit phase tuning resolution
12-bit amplitude scaling
Programmable modulus
Automatic linear and nonlinear frequency sweeping
capability
32-bit parallel datapath interface
8 frequency/phase offset profiles
Phase noise: −128 dBc/Hz (1 kHz offset at 978 MHz)
Wideband SFDR < −57 dBc
Serial or parallel input/output control
1.8 V/3.3 V power supplies
Software and hardware controlled power-down
88-lead LFCSP package
PLL REF CLK multiplier
Phase modulation capability
Amplitude modulation capability
Multichip synchronization AD9915 HIGH SPEED PARALLEL
MODULATION …