Datasheet4U Logo Datasheet4U.com

AD9834 Datasheet 75 MHz Complete DDS

Manufacturer: Analog Devices

General Description

The AD9834 is a 75 MHz low power DDS device capable of The AD9834 has a power-down pin (SLEEP) that allows external control of the power-down mode.

Sections of the device that are not being used can be powered down to minimize the current consumption.

For example, the DAC can be powered down when a clock output is being generated.

Overview

Data Sheet 20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS AD9834.

Key Features

  • Narrow-band SFDR >72 dB 2.3 V to 5.5 V power supply Output frequency up to 37.5 MHz Sine output/triangular output On-board comparator 3-wire SPI® interface Capability for phase modulation and frequency modulation is provided. The frequency registers are 28 bits; with a 75 MHz clock rate, resolution of 0.28 Hz can be achieved. Similarly, with a 1 MHz clock rate, the AD9834 can be tuned to 0.004 Hz resolution. Frequency and phase modulation are affected by loading registers through the serial int.