AD9831ASTZ-REEL

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resolution (Bits):	10 b
Master fclk:	25MHz
Tuning Word Width (Bits):	32 b
Voltage - Supply:	2.97 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	48-LQFP
Supplier Device Package:	48-LQFP (7x7)
Base Part Number:	AD9831

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Direct Digital Synthesis (DDS)

Direct digital synthesis (DDS) is a highly efficient and easy-to-use technology that is used to generate signals. It is used in a wide range of applications including medical, consumer electronics, communications, aerospace, and defense. It is a digital signal processor (DSP) technique that generates periodic signals in the frequency domain. It is typically used in conjunction with a phase-locked loop (PLL) to allow for seamless frequency tuning.The AD9831ASTZ-REEL is an ideal DDS for applications such as frequency generation, frequency hopping, phase-locked loop (PLL) synthesizers, and digital signal processing (DSP) applications. It is a low-power, low-noise device that operates from a 3.3V supply. It features a 40MHz input clock, 2.5V full-scale output, programmable output frequency range, and programmable frequency resolution.The AD9831ASTZ-REEL uses a combination of digital and analog components to produce a signal with the desired properties. It includes an internal phase accumulator and sine function lookup table to generate the output signal. The phase accumulator is responsible for generating a fixed frequency output. The frequency is determined by the value stored in the accumulator and can be changed by simply changing the stored value. The internal lookup table is used to generate the sine wave used by the phase accumulator.The output of the AD9831ASTZ-REEL is a digital signal that is converted to an analog signal using a digital to analog (D/A) converter. The D/A converter is usually a simple one-bit D/A with the output scaled to represent the desired range. The output is then mixed with the carrier frequency generated by the device to produce the desired signal.The AD9831ASTZ-REEL is capable of producing signals from 100kHz up to 40MHz and has a frequency resolution of 8µHz. The device has a very low jitter of ±1.000ns and provides excellent performance with little or no noise. It requires very little external circuitry and is easy to program, making it ideal for a wide range of applications.In summary, the AD9831ASTZ-REEL is a low-power, low-noise Direct Digital Synthesis device ideal for applications such as frequency generation, frequency hopping, phase-locked loop (PLL) synthesizers, and digital signal processing (DSP). It features a 40MHz input clock, 2.5V full-scale output, programmable output frequency range, and programmable frequency resolution. The device has a very low jitter of ±1.000ns and can produce signals from 100kHz up to 40MHz with frequency resolution of 8µHz.

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