DESCRIPTION

· The AD9911 is a high-speed Direct Digital Synthesizer (DDS) with a 10-bit DAC, featuring excellent SFDR performance. · It includes three auxiliary DDS cores for spur reduction, multitone generation, or test-tone modulation. · This device is the first to incorporate SpurKiller technology and multitone generation capability, supporting up to four concurrent carriers with independently programmable frequency, phase, and amplitude. · It supports various modulation types (FSK, PSK, ASK) and linear sweeping of frequency, phase, or amplitude.

FEATURES

· Patented SpurKiller technology for improved SFDR. · Multitone generation and test-tone modulation capabilities. · Up to 800 Mbps data throughput with matched latencies for frequency/phase/amplitude changes. · Supports up to 16 levels of FSK, PSK, ASK. · Programmable DAC full-scale current with 32-bit frequency tuning, 14-bit phase offset, and 10-bit amplitude scaling resolutions. · Software/hardware-controlled power-down and multiple device synchronization. · Selectable 4× to 20× REF_CLK multiplier and crystal oscillator. · 56-lead LFCSP package.

APPLICATIONS

· Agile local oscillator in various systems. · Test and measurement equipment. · Commercial and amateur radio exciters. · Radar and sonar systems. · Test-tone generation and fast frequency hopping. · Clock generation in advanced electronic systems.