AD9838集成电路（IC）的直接数字合成（DDS）规格书PDF中文资料

AD9838属于集成电路（IC）的直接数字合成（DDS）。由亚德诺半导体技术有限公司制造生产的AD9838直接数字合成（DDS）直接数字合成 (DDS) 用于由数字信号生成不同频率的模拟波形。在必须大范围扫描的无线系统中可用于频率控制。主时钟频率有 5MHz、16MHz、16.776MHz、25MHz、50MHz、75MHz、125MHz、180MHz、200MHz、250MHz、300MHz、400MHz、500MHz、1GHz、2.5GHz 和 3GHz，分辨率为 10 b、12 b 或 14 b。

GENERAL DESCRIPTION

The AD9838 is a low power DDS device capable of producing high performance sine and triangular outputs. It also has an on-board comparator that allows a square wave to be produced for clock generation. Consuming only 11 mW of power at 2.3 V, the AD9838 is an ideal candidate for power-sensitive applications.

FEATURES

2.3 V to 5.5 V power supply

MCLK speed: 16 MHz (B grade), 5 MHz (A grade)

Output frequency up to 8 MHz

Sinusoidal and triangular outputs

On-board comparator

3-wire SPI interface

Extended temperature range: −40°C to +125°C

Power-down option

11 mW power consumption at 2.3 V

20-lead LFCSP

APPLICATIONS

Frequency stimulus/waveform generation

Frequency phase tuning and modulation

Low power RF/communications systems

Liquid and gas flow measurement

Sensory applications: proximity, motion, and defect detection

Test and medical equipment