參數(shù)資料
型號: AM79Q062JC
廠商: ADVANCED MICRO DEVICES INC
元件分類: 編解碼器
英文描述: A/MU-LAW, PCM CODEC, PQCC32
封裝: PLASTIC, LCC-32
文件頁數(shù): 83/95頁
文件大?。?/td> 1399K
代理商: AM79Q062JC
84
Am79Q06/061/062/063 Data Sheet
COP 7.Write/Read R Filter Coefficients
GCI Command
(8A/8Bh)
R/W = 1: Read
R/W = 0: Write
The Z-transform equation for the IIR filter is defined as:
Sample rate = 8 kHz
The coefficient for the IIR filter is defined as:
The Z-transform equation for the FIR filter is defined as:
Sample rate = 16 kHz
For i = 0 to 5, the coefficients for the R2 filter are defined as:
Power Up and Hardware Reset (RST) Values = 2E01 0111 0190 0190 0190 0190 0190 (Hex)
(HFIR (z) = 1, R6 = 0.9902)
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Command
1
0
1
0
1
W/R
Coefficient Byte 1
C46
m46
C36
m36
Coefficient Byte 2
C26
m26
C16
m16
Coefficient Byte 3
C40
m40
C30
m30
Coefficient Byte 4
C20
m20
C10
m10
Coefficient Byte 5
C41
m41
C31
m31
Coefficient Byte 6
C21
m21
C11
m11
Coefficient Byte 7
C42
m42
C32
m32
Coefficient Byte 8
C22
m22
C12
m12
Coefficient Byte 9
C43
m43
C33
m33
Coefficient Byte 10
C23
C13
m13
Coefficient Byte 11
C44
m44
C34
m34
Coefficient Byte 12
C24
m24
C14
m14
Coefficient Byte 13
C45
m45
C35
m35
Coefficient Byte 14
C25
m25
C15
m15
HR
H
=
IIR
H
FIR
H
IIR
1z
1
1R
6
z
1
()
---------------------------------
=
R
6
C16
2
ml6
1C26
2
m26
1C36
2
m36
1C46
2
m46
+
()
+
[]
+
{}
=
H
FIR z
() R
0
R
1z
1
R
2z
2
R
3z
3
R
4z
4
R
5z
5
+++++
=
R
i
C1i
2
m1i
1C2i
2
m2i
1C3i
2
m3i
1C4i
2
m4i
+
()
+
[]
+
{}
=
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