AD9831: 25 MHz Parallel Loading DDS With On-Chip 10-Bit DAC

This DDS device is a numerically controlled oscillator employing a phase accumulator, a sine look-up table and a 10-bit D/A converter integrated on a single CMOS chip. Modulation capabilities are provided for phase modulation and frequency modulation.

Clock rates up to 25 MHz are supported. Frequency accuracy can be controlled to one part in 4 billion. Modulation is effected by loading registers through the parallel microprocessor interface.

A powerdown pin allows external control of a powerdown mode. The part is available in a 48-pin TQFP package.

AD9831 特点

• 3 V/5 V Power Supply
• 25 MHz Speed
• On-Chip SINE Look-Up Table
• On-Chip 10-Bit DAC
• Parallel Loading
• Powerdown Option
• 72 dB SFDR
• 125 mW (5 V) Power Consumption
• 40 mW (3 V) Power Consumption
• 48-Pin TQFP

AD9831 功能框图

AD9831 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
AD9831AST-REEL	量产	48 ld TQFP (7x7mm)	48	工业
AD9831ASTZ	量产	48 ld TQFP (7x7mm)	48	工业
AD9831ASTZ-REEL	量产	48 ld TQFP (7x7mm)	48	工业
EVAL-AD9831EBZ	量产	评估板	-	待定

AD9831 应用技术支持与电子电路设计开发资源下载

1. AD9831 数据手册DataSheet 下载 . PDF
2. ADI 模拟器件公司比较器产品选型指南 . PDF
3. Analog Devices, Inc. 美国模拟器件公司产品订购手册 .PDF