均衡技术拼合DAC频率响应

摘要：数字 - 模拟转换器（DAC ）将数字数据转换成模拟电压或电流的仪器和无线通信等应用。一个DAC的输出频率范围从DC到低于FS / 2 ，其中FS是输入更新频率。然而，对于大多数的DAC输出频率响应，推出了根据SIN （X ） / X（ SINC ）频率响应信封。

Maxim > App Notes > A/D and D/A CONVERSION/SAMPLING CIRCUITS BASESTATIONS / WIRELESS INFRASTRUCTURE
DIGITAL POTENTIOMETERS HIGH-SPEED SIGNAL PROCESSING WIRELESS, RF, AND CABLE

Keywords: pre equalization, post equalization, frequency response, sinx/x, sinc function, interpolation, Nyquist, image Jun 01, 2006
frequency, reconstruction filter, FIR, roll-off

APPLICATION NOTE 3853
Equalizing Techniques Flatten DAC Frequency Response

Abstract: Digital-to-analog converters (DACs) convert digital data to analog voltage or current in applications such as
instrumentation and wireless communications. A DAC's output frequency generally ranges from DC to less than fS/2,
where fS is the input-updating frequency. The output frequency response for most DACs, however, rolls off according to
the sin(x