The
AD9912 is a direct digital synthesizer (DDS) that features an integrated 14-bit digital-to-analog converter (DAC). The AD9912 features a 48-bit frequency tuning word (FTW) that can synthesize frequencies in step sizes no larger than 4 μHz. Absolute frequency accuracy can be achieved by adjusting the DAC system clock.
The AD9912 also features an integrated system clock phase-locked loop (PLL) that allows for system clock inputs as low as 25 MHz.
The AD9912 operates over an industrial temperature range, spanning −40°C to +85°C.
Applications
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Agile LO frequency synthesis
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Low jitter, fine tune clock generation
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Test and measurement equipment
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Wireless base stations and controllers
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Secure communications
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Fast frequency hopping
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优势和特点
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1 GSPS internal clock speed (up to 400 MHz output directly)
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Integrated 1 GSPS 14-bit DAC
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48-bit frequency tuning word with 4 μHz resolution
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Differential HSTL comparator
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Flexible system clock input accepts either crystal or external reference clock
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On-chip low noise PLL REFCLK multiplier
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2 SpurKiller channels
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See data sheet for additional information.
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