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AD1954YSTRL7 Datasheet(PDF) 23 Page - Analog Devices

Part # AD1954YSTRL7
Description  SigmaDSP??3-Channel, 26-Bit Signal Processing DAC
PDF  36 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD1954YSTRL7 Datasheet(HTML) 23 Page - Analog Devices

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AD1954
–23–
NOTES
1The detector hold and decay times are integer values, while the rest of the parameters are fractional twos complement values.
2The default decay time of the hold/release circuit is set fast enough so that the decay is dominated by the time constant of the rms detector.
Table VI. Parameter RAM Contents—Default Program
0
IIR0 Left b0
1.0
1
IIR0 Left b1
0
2
IIR0 Left b2
0
3
IIR0 Left a1
0
4
IIR0 Left a2
0
5
IIR1 Left b0
1.0
6
IIR1 Left b1
0
7
IIR1 Left b2
0
8
IIR1 Left a1
0
9
IIR1 Left a2
0
10
IIR2 Left b0
1.0
11
IIR2 Left b1
0
12
IIR2 Left b2
0
13
IIR2 Left a1
0
14
IIR2 Left a2
0
15
IIR3 Left b0
1.0
16
IIR3 Left b1
0
17
IIR3 Left b2
0
18
IIR3 Left a1
0
19
IIR3 Left a2
0
20
IIR4 Left b0
1.0
21
IIR4 Left b1
0
22
IIR4 Left b2
0
23
IIR4 Left a1
0
24
IIR4 Left a2
0
25
IIR5 Left b0
1.0
26
IIR5 Left b1
0
27
IIR5 Left b2
0
28
IIR5 Left a1
0
29
IIR5 Left a2
0
30
IIR6 Left b0
1.0
31
IIR6 Left b1
0
32
IIR6 Left b2
0
33
IIR6 Left a1
0
34
IIR6 Left a2
0
35
IIR0 Right b0 1.0
36
IIR0 Right b1 0
37
IIR0 Right b2 0
38
IIR0 Right a1 0
39
IIR0 Right a2 0
40
IIR1 Right b0 1.0
41
IIR1 Right b1 0
42
IIR1 Right b2 0
43
IIR1 Right a1 0
44
IIR1 Right a2 0
45
IIR2 Right b0 1.0
46
IIR2 Right b1 0
47
IIR2 Right b2 0
48
IIR2 Right a1 0
49
IIR2 Right a2 0
50
IIR3 Right b0 1.0
51
IIR3 Right b1 0
52
IIR3 Right b2 0
53
IIR3 Right a1 0
Default Value
in Fractional
Addr Function
2.20 Format
54
IIR3 Right a2
0
55
IIR4 Right b0
1.0
56
IIR4 Right b1
0
57
IIR4 Right b2
0
58
IIR4 Right a1
0
59
IIR4 Right a2
0
60
IIR5 Right b0
1.0
61
IIR5 Right b1
0
62
IIR5 Right b2
0
63
IIR5 Right a1
0
64
IIR5 Right a2
0
65
IIR6 Right b0
1.0
66
IIR6 Right b1
0
67
IIR6 Right b2
0
68
IIR6 Right a1
0
69
IIR6 Right a2
0
70
IIR0 Xover Left b0
1.0
71
IIR0 Xover Left b1
0
72
IIR0 Xover Left b2
0
73
IIR0 Xover Left a1
0
74
IIR0 Xover Left a2
0
75
IIR1 Xover Left b0
1.0
76
IIR1 Xover Left b1
0
77
IIR1 Xover Left b2
0
78
IIR1 Xover Left a1
0
79
IIR1 Xover Left a2
0
80
IIR0 Xover Right b0 1.0
81
IIR0 Xover Right b1 0
82
IIR0 Xover Right b2 0
83
IIR0 Xover Right a1 0
84
IIR0 Xover Right a2 0
85
IIR1 Xover Right b0 1.0
86
IIR1 Xover Right b1 0
87
IIR1 Xover Right b2 0
88
IIR1 Xover Right a1 0
89
IIR1 Xover Right a2 0
90
IIR0 Xover Sub b0
1.0
91
IIR0 Xover Sub b1
0
92
IIR0 Xover Sub b2
0
93
IIR0 Xover Sub a1
0
94
IIR0 Xover Sub a2
0
95
IIR1 Xover Sub b0
1.0
96
IIR1 Xover Sub b1
0
97
IIR1 Xover Sub b2
0
98
IIR1 Xover Sub a1
0
99
IIR1 Xover Sub a2
0
100
IIR2 Xover Sub b0
1.0
101
IIR2 Xover Sub b1
0
102
IIR2 Xover Sub b2
0
103
IIR2 Xover Sub a1
0
104
IIR2 Xover Sub a2
0
105
IIR Sub rms b0
1.0
106
IIR Sub rms b1
0
107
IIR Sub rms b2
0
Default Value
in Fractional
Addr Function
2.20 Format
108
IIR Sub rms a1
0
109
IIR Sub rms a2
0
110–142
Main Compressor
1.0 (all)
Look-UpTable Base
143
Main Compressor
5.75  104
Attack/rmsTime
(120 dB/sec)
Constant
144
Main Post-
1.0
Compressor Gain
145–177
Subwoofer
1.0
Compressor
Look-UpTable Base
178
Sub Compressor
5.75  104
Attack/rmsTime
(120 dB/sec)
Constant
179
Post-Compressor
1.0
Gain (Sub)
180
High-Pass Filter
Cutoff Frequency
181
Main Compressor
0
Look-Ahead Delay
182
Delay Left
0
183
Delay Right
0
184
Delay Sub
0
185
Stereo Spreading
0
Coefficient
186
Stereo Spreading
0.112694
Frequency Control
187
Subwoofer
0.0
Reinjection
to Main Left
188
Subwoofer
0.0
Reinjection
to Main Right
189
Subwoofer Channel
0.5
Input Gain from
Left In
190
Subwoofer Channel
0.5
Input Gain from
Right In
191
Main Detector Hold 01
Time, Samples
(4095 Max)
192
Sub Detector Hold
01
Time, Samples
(4095 Max)
193
Main Detector
0.069611
DecayTime
(10000 dB/sec)2
194
Sub Detector
0.069611
DecayTime
(10000 dB/sec)2
195–255
Unused
Default Value
in Fractional
Addr
Function
2.20 Format
REV. A



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