AD9833屬于集成電路（IC）的直接數(shù)字合成（DDS）。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD9833直接數(shù)字合成（DDS）直接數(shù)字合成 (DDS) 用于由數(shù)字信號(hào)生成不同頻率的模擬波形。在必須大范圍掃描的無(wú)線系統(tǒng)中可用于頻率控制。主時(shí)鐘頻率有 5MHz、16MHz、16.776MHz、25MHz、50MHz、75MHz、125MHz、180MHz、200MHz、250MHz、300MHz、400MHz、500MHz、1GHz、2.5GHz 和 3GHz，分辨率為 10 b、12 b 或 14 b。

GENERAL DESCRIPTION

The AD9833 is a low power, programmable waveform generato capable of producing sine, triangular, and square wave outputs Waveform generation is required in various types of sensing, actuation, and time domain reflectometry (TDR) applications. The output frequency and phase are software programmable, allowing easy tuning. No external components are needed.

FEATURES

Digitally programmable frequency and phase

12.65 mW power consumption at 3 V

0 MHz to 12.5 MHz output frequency range

28-bit resolution: 0.1 Hz at 25 MHz reference clock

Sinusoidal, triangular, and square wave outputs

2.3 V to 5.5 V power supply

No external components required

3-wire SPI interface

Extended temperature range: ?40°C to +105°C

Power-down option

10-lead MSOP package

Qualified for automotive applications

APPLICATIONS

Frequency stimulus/waveform generation

Liquid and gas flow measurement

Sensory applications: proximity, motion, and defect detection

Line loss/attenuation

Test and medical equipment

Sweep/clock generators

Time domain reflectometry (TDR) applications