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AD7008 - CMOS DDS Modulator

Description

The AD7008 direct digital synthesis chip is a numerically controlled oscillator employing a 32-bit phase accumulator, sine and cosine look-up tables and a 10-bit D/A converter integrated on a single CMOS chip.

1.

Low Power 2.

Features

  • Single +5 V Supply 32-Bit Phase Accumulator On-Chip COSINE and SINE Look-Up Tables On-Chip 10-Bit DAC Frequency, Phase and Amplitude Modulation Parallel and Serial Loading Software and Hardware Power Down Options 20 MHz and 50 MHz Speed Grades 44-Pin PLCC.

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Datasheet Details

Part number AD7008
Manufacturer Analog Devices
File Size 505.36 KB
Description CMOS DDS Modulator
Datasheet download datasheet AD7008 Datasheet
Additional preview pages of the AD7008 datasheet.

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Full PDF Text Transcription

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a FEATURES Single +5 V Supply 32-Bit Phase Accumulator On-Chip COSINE and SINE Look-Up Tables On-Chip 10-Bit DAC Frequency, Phase and Amplitude Modulation Parallel and Serial Loading Software and Hardware Power Down Options 20 MHz and 50 MHz Speed Grades 44-Pin PLCC APPLICATIONS Frequency Synthesizers Frequency, Phase or Amplitude Modulators DDS Tuning Digital Modulation CMOS DDS Modulator AD7008 phase modulation, frequency modulation, and both in-phase and quadrature amplitude modulation suitable for QAM and SSB generation. Clock rates up to 20 MHz and 50 MHz are supported. Frequency accuracy can be controlled to one part in 4 billion. Modulation may be effected by loading registers either through the parallel microprocessor interface or the serial interface.
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