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HSP43124 Datasheet(PDF) 9 Page - Intersil Corporation |
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HSP43124 Datasheet(HTML) 9 Page - Intersil Corporation |
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9 / 17 page  9 FIGURE 10A. BLOCK DIAGRAM OF FIXED COEFFICIENT HALFBAND FILTERS BITS2-0 100 0 1 11 1 101 1 1 11 1 010 0 0 01 1 011 0 0 11 1 000 0 0 00 0 001 0 0 00 1 MUX1 = (BIT2 AND BIT0) AND BIT1 MUX2 = BIT2 MUX3 = (BIT1 AND BIT0) OR BIT2 MUX4 = BIT1 OR BIT2 MUX5 = BIT0 OR BIT1 OR BIT2 INVALID = BIT2 AND BIT1 MULTIPLEXERS’ DECODER TABLE AND EQUATIONS MUX5 MUX4 MUX3 MUX2 MUX1 HB5 HB4 HB3 HB2 HB1 INPUT TO FNORMALIZED = Fs Fs FHB1= Fs or Fs/2 Fs/2 FHB1/2 FHB2 = FHB1 or FHB1/2 FNORMALIZED = FHB1 FHB3 = FHB2 or FHB2/2 FHB2/2 FNORMALIZED = FHB2 FHB3/2 FNORMALIZED = FHB3 FHB4 = FHB3 or FHB3/2 FHB4/2 FNORMALIZED = FHB4 OUTPUT OF HALFBAND SECTION HALFBAND SECTION 01 MUX5 MUX4 MUX3 MUX2 MUX1 01 01 01 01 35 TAP 23 TAP 19 TAP 11 TAP 7 TAP FIGURE 10B. SPECTRAL COMPOSITION OF FIVE CASCADED HALFBANDS FIGURE 10C. COMPOSITE RESPONSE OF FIXED COEFFI- CIENT HALFBAND FILTERS WITH RESPECT TO THE NORMALIZED FREQUENCY SHOWN IN FIG- URE 10A FCLK 4 FCLK 2 3FCLK 4 FCLK FCLK 2 FCLK 2 FS 2 FS 2 FCLK 4 FCLK 4 FCLK 4 FCLK 4 FCLK 8 FCLK 8 FCLK 8 FCLK 8 FCLK 16 FCLK FCLK FCLK FCLK FCLK FCLK 32 FCLK 32 FCLK 64 FCLK 64 STAGE 1 STAGE 2 STAGE 3 STAGE 4 STAGE 5 POSITE FILTER FCLK 16 COM- -120 -140 -160 -180 -200 0 0.125 0.25 0.375 0.5 -60 -40 -20 -80 -100 6dB BANDWIDTH HB1 TRANSITION BW NORMALIZED FREQUENCY HB2 HB3 HB4 HB5 (NORMALIZED TO OUTPUT FREQUENCY) HSP43124 |
Similar Part No. - HSP43124 |
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Similar Description - HSP43124 |
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