【应用笔记】理解CIC补偿滤波器(Understanding CIC Compensation Filters)

【应用笔记】理解CIC补偿滤波器(Understanding CIC Compensation Filters)
级联积分－梳状(Cascaded Integrator–Comb，CIC)滤波器，是一类硬件高效、线形相位FIR数字滤波器。
The cascaded integrator-comb (CIC) filter is a class of hardware-efficient
linear phase finite impulse response (FIR) digital filters. CIC filters
achieve sampling rate decrease (decimation) and sampling rate increase
(interpolation) without using multipliers. Altera’s CIC Compiler
MegaCore® function implements various CIC filters based on
Hogenauer’s method.
Understanding CIC
Compensation Filters

April 2007, ver. 1.0 Application Note 455



Introduction The cascaded integrator-comb (CIC) filter is a class of hardware-efficient
linear phase finite impulse response (FIR) digital filters. CIC filters
achieve sampling rate decrease (decimation) and sampling rate increase
(interpolation) without using multipliers. Altera’s CIC Compiler
MegaCore function implements various CIC filters based on
Hogenauer’s method.