CS5378 查看數據表（PDF） - Cirrus Logic

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CS5378

Low-power Single-channel Decimation Filter

Cirrus Logic 

CS5378

Filter Type

FIR1 (Coefficient set 0)

Low pass, SINC compensation

Linear phase decimate by 4

48 coefficients

FIR1 (Coefficient set 1)

Low pass, SINC compensation

Minimum phase decimate by 4

48 coefficients

Filter Coefficients

(normalized 24-bit)

h0 = 558

h1 = 1905

h2 = 3834

h3 = 5118

h4 = 365

h5 = -14518

h6 = -39787

h7 = -67365

h8 = -69909

h9 = -19450

h10 = 97434

h11 = 258881

h12 = 375562

h13 = 332367

h14 = 39864

h15 = -496361

h16 = -1084130

h17 = -1392827

h18 = -1053303

h19 = 189436

h20 = 2266428

h21 = 4768946

h22 = 7042723

h23 = 8388607

h24 = 8388607

h25 = 7042723

h26 = 4768946

h27 = 2266428

h28 = 189436

h29 = -1053303

h30 = -1392827

h31 = -1084130

h32 = -496361

h33 = 39864

h34 = 332367

h35 = 375562

h36 = 258881

h37 = 97434

h38 = -19450

h39 = -69909

h40 = -67365

h41 = -39787

h42 = -14518

h43 = 365

h44 = 5118

h45 = 3834

h46 = 1905

h47 = 558

h0 = 3337

h1 = 22258

h2 = 88284

h3 = 266742

h4 = 655747

h5 = 1371455

h6 = 2502684

h7 = 4031988

h8 = 5783129

h9 = 7396359

h10 = 8388607

h11 = 8325707

h12 = 6988887

h13 = 4531706

h14 = 1507479

h15 = -1319126

h16 = -3207750

h17 = -3736028

h18 = -2980701

h19 = -1421498

h20 = 237307

h21 = 1373654

h22 = 1711919

h23 = 1322371

h24 = 555919

h25 = -165441

h26 = -581479

h27 = -617500

h28 = -388985

h29 = -99112

h30 = 114761

h31 = 186557

h32 = 141374

h33 = 58582

h34 = -12664

h35 = -42821

h36 = -35055

h37 = -16792

h38 = 367

h39 = 7929

h40 = 5926

h41 = 2892

h42 = 23

h43 = -1164

h44 = -538

h45 = -238

h46 = 18

h47 = 113

Figure 27. FIR1 Coefficients

DS639F2

49

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