Product description
400 MSPS, 10-Bit, 1.8 V CMOS Direct Digital Synthesizer
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, complete high frequency synthesizer capable of generating a frequency-agile analog output sinusoidal waveform at up to 200 MHz. The AD9859 is designed to provide fast frequency hopping and fine tuning resolution (32-bit frequency tuning word). The frequency tuning and control words are loaded into the AD9859 via a serial I/O port.
Features
* 400MSPS internal clock speed * Integrated 10-bit DAC * 32-bit tuning word * Phase noise < -120dBc/Hz @ 1kHz offset (DAC output) * Excellent dynamic performance * >75dB SFDR @ 160MHz (+/-100kHz offset) AOUT
* Serial I/O control * 1.8V power supply * Software and hardware controlled power-down * Support for 5V input levels on most digital inputs * PLL REFCLK multiplier (4× to 20×) * Internal oscillator; can be driven by a single crystal * Phase modulation capability * Multichip synchronization
Applications
* Agile LO frequency synthesis
* Programmable clock generators
* Test and measurement equipment
* Commercial and amateur radio exciter
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, complete high frequency synthesizer capable of generating a frequency-agile analog output sinusoidal waveform at up to 200 MHz. The AD9859 is designed to provide fast frequency hopping and fine tuning resolution (32-bit frequency tuning word). The frequency tuning and control words are loaded into the AD9859 via a serial I/O port.
Features
* 400MSPS internal clock speed * Integrated 10-bit DAC * 32-bit tuning word * Phase noise < -120dBc/Hz @ 1kHz offset (DAC output) * Excellent dynamic performance * >75dB SFDR @ 160MHz (+/-100kHz offset) AOUT
* Serial I/O control * 1.8V power supply * Software and hardware controlled power-down * Support for 5V input levels on most digital inputs * PLL REFCLK multiplier (4× to 20×) * Internal oscillator; can be driven by a single crystal * Phase modulation capability * Multichip synchronization
Applications
* Agile LO frequency synthesis
* Programmable clock generators
* Test and measurement equipment
* Commercial and amateur radio exciter