參數(shù)資料
型號: TDA7317
廠商: STMICROELECTRONICS
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), EQUALIZER CIRCUIT, PDIP30
封裝: 0.400 INCH, SDIP-30
文件頁數(shù): 11/12頁
文件大?。?/td> 826K
代理商: TDA7317
APPLICATION INFORMATION
A typical application is indicated in figure 4, while
the P.C. Board and components layout are re-
ported in figure 5. The external components, are
calculated for 2 different max boost/cut conditions
Graphic Equalizer
MSB
LSB
FUNCTION
1
D3D2
D1D0
S2
C1C0
0
1
0
1
0
1
0
1
0
Band 1
Band 2
Band 3
Band 4
Band 5
D3
D2
D1
1
0
C2
C1
C0
cut
Boost
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0dB
2dB
4dB
6dB
8dB
10dB
12dB
14dB
AX = 0.375dB steps, BX = 3dB steps, CX = 2dB steps, X = dont’care
STATUS AFTER POWER-ON RESET
Volume
-17.25dB
Graphic equalizer bands
-12dB
TABLE 1: Max Boost/cut = 20 dB (each cell =
±14dB)
F (HZ)
Q
R1 (K
)R2 (K)
C1 (nF)
C2 (nF)
Av max (dB)
BAND 1
10363.38
1.49
47
5.1
0.820
1.2
13.52
BAND 2
261.03
1.49
47
5.1
33
47
13.63
BAND 3
1036.34
1.49
47
5.1
8.2
12
13.52
BAND 4
3168.08
1.49
47
5.1
2.7
3.9
13.57
BAND 5
59.75
1.11
43
7.5
220
100
13.88
For THD performance the sequence Band 1, 2, 3, 4, 5, is recommended
TABLE2: Max Boost/cut = 17dB (each cell =
±12dB)
F (HZ)
Q
R1 (K
)R2 (K)
C1 (nF)
C2 (nF)
Av max (dB)
BAND 1
10158.00
1.15
33
6.2
1.2
1
11.83
BAND 2
250.81
1.21
30
5.1
47
56
11.33
BAND 3
977.34
1.20
39
6.8
10
11.75
BAND 4
3429.00
1.25
39
6.2
2.7
3.3
11.67
BAND 5
61.82
1.15
33
6.2
180
11.27
TDA7317
8/12
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