CXD2724AQ-1 Datasheet, PDF (40/65 Pages) Sony Corporation – Single-Chip Dolby Pro Logic Surround Decoder

CXD2724AQ-1
(7)-3. Filters
[Relevant data] Coefficients: a0 (06H, 0bH, 13H, 16H), a1 (07H, 0cH, 14H, 17H), b (08H, 0dH, 15H, 18H)
LPF1, HPF1, LPF2 and HPF2 are comprised of primary IIR filters, and the coefficient setting and cut-off
frequency relationship are as shown in Table 8-1-16.
Cut-off
LPF1, 2
frequency [Hz] _{a0 a1 b}
HPF1, 2
a0 a1 b
Cut-off
LPF1, 2
frequency [Hz] _{a0 a1 b}
HPF1, 2
a0 a1 b
100
200
300
400
500
600
700
800
900
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
FF19 00E7 7E30 80E8 7F18 7E30
FE34 01CC 7C67 81CD 7E33 7C67
FD53 02AD 7AA4 82AE 7D52 7AA4
FC74 038C 78E7 838D 7C73 78E7
FB99 0467 7731 8468 7B98 7731
FAC1 053F 7580 8540 7AC0 7580
F9EB 0615 73D4 8616 79EA 73D4
F918 06E8 722E 86E9 7917 722E
F848 07B8 708E 87B9 7847 708E
F77A 0886 6EF2 8887 7779 6EF2
F5E6 0A1A 6BCB 8A1B 75E5 6BCB
F45C 0BA4 68B6 8BA5 745B 68B6
F2DB 0D25 65B4 8D26 72DA 65B4
F162 0E9E 62C3 8E9F 7161 62C3
EFF2 100E 5FE2 900F 6FF1 5FE2
EE89 1177 5D11 9178 6E88 5D11
ED28 12D8 5A4E 92D9 6D27 5A4E
EBCE 1432 579A 9433 6BCD 579A
EA7A 1586 54F3 9587 6A79 54F3
E92D 16D3 5259 96D4 692C 5259
E7E6 181A 4FCB 981B 67E5 4FCB
E6A5 195B 4D48 995C 66A4 4D48
E569 1A97 4AD0 9A98 6568 4AD0
E432 1BCE 4863 9BCF 6431 4863
E301 1CFF 4600 9D00 6300 4600
E1D4 1E2C 43A6 9E2D 61D3 43A6
E0AB 1F55 4155 9F56 60AA 4155
DF87 2079 3F0D A07A 5F86 3F0D
DE67 2199 3CCD A19A 5E66 3CCD
DD4B 22B5 3A94 A2B6 5D4A 3A94
5200
5400
5600
5800
6000
6200
6400
6600
6800
7000
7200
7400
7600
7800
8000
8200
8400
8600
8800
9000
9200
9400
9600
9800
10000
10200
10400
10600
10800
11000
OFF
DC32 23CE 3863 A3CF 5C31 3863
DB1D 24E3 3639 A4E4 5B1C 3639
DA0C 25F4 3416 A5F5 5A0B 3416
D8FD 2703 31F9 A704 58FC 31F9
D7F2 280E 2FE2 A80F 57F1 2FE2
D6E9 2917 2DD0 A918 56E8 2DD0
D5E3 2A1D 2BC4 AA1E 55E2 2BC4
D4DF 2B21 29BD AB22 54DE 29BD
D3DE 2C22 27BB AC23 53DD 27BB
D2DF 2D21 25BD AD22 52DE 25BD
D1E3 2E1D 23C4 AE1E 51E2 23C4
D0E8 2F18 21CF AF19 50E7 21CF
CFEF 3011 1FDD B012 4FEE 1FDD
CEF8 3108 1DEF B109 4EF7 1DEF
CE03 31FD 1C04 B1FE 4E02 1C04
CD0F 32F1 1A1C B2F2 4D0E 1A1C
CC1D 33E3 1838 B3E4 4C1C 1838
CB2B 34D5 1655 B4D6 4B2A 1655
CA3B 35C5 1475 B5C6 4A3A 1475
C94D 36B3 1298 B6B4 494C 1298
C85F 37A1 10BC B7A2 485E 10BC
C772 388E 0EE2 B88F 4771 0EE2
C685 397B 0D09 B97C 4684 0D09
C59A 3A66 0B32 BA67 4599 0B32
C4AF 3B51 095C BB52 44AE 095C
C3C5 3C3B 0788 BC3C 43C4 0788
C2DA 3D26 05B3 BD27 42D9 05B3
C1F1 3E0F 03E0 BE10 41F0 03E0
C107 3EF9 020D BEFA 4106 020D
C01E 3FE2 003A BFE3 401D 003A
8000 0000 0000 8000 0000 0000
Table 8-1-16. Simple SFC HPF and LPF Setting Coefficients
– 40 –