ISL5216_07 Datasheet, PDF (60/65 Pages) Intersil Corporation – Four-Channel Programmable Digital Downconverter

ISL5216
TABLE 53. INTERPOLATING HALFBAND FIR FILTER COEFFICIENTS
INTERPOLATING HALFBAND #2
(IHBF #2, 15-TAP)
INTERPOLATING HALFBAND #1
(IHBF #1, 23-TAP)
COEFF
HEX
DECIMAL
HEX
DECIMAL
C0
FFAA24
-0.002620220
FFE944
-0.000693798
C1
000000
0.000000000
000000
0.000000000
C2
032B60
0.024761200
00A4B4
0.005026340
C3
000000
0.000000000
000000
0.000000000
C4
F07F40
-0.121116638
FD6640
-0.020317078
C5
000000
0.000000000
000000
0.000000000
C6
4CAB00
0.598968506
07D240
0.061103821
C7
800000
1.000000000
000000
0.000000000
C8
4CAB00
0.598968506
EB0340
-0.163963318
C9
000000
0.000000000
000000
0.000000000
C10
F07F40
-0.121116638
4F3600
0.618835449
C11
000000
0.000000000
800000
1.000000000
C12
032B60
0.024761200
4F3600
0.618835449
C13
000000
0.000000000
000000
0.000000000
C14
FFAA24
-0.002620220
EB0340
-0.163963318
C15
000000
0.000000000
C16
07D240
0.061103821
C17
000000
0.000000000
C18
FD6640
-0.020317078
C19
000000
0.000000000
C20
00A4B4
0.005026340
C21
000000
0.000000000
C22
FFE944
-0.000693798
NOTE:
28. The 22-bit ROMd FIR filter coefficients are located in the upper 22 bits of the Read register when read back from ROM memory. These bits
occupy the upper three bytes (24 bits) with the two LSBs of the lower byte (bits 9:8 of 31:0) being zero. The decimal value for the hexadecimal
coefficient is calculated by first converting the hexadecimal value to decimal and the dividing by 2²³ (8388608).
60
FN6013.3
July 13, 2007