参数资料
型号: TAS3103IDBTR
厂商: TEXAS INSTRUMENTS INC
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO38
封装: GREEN, PLASTIC, TSSOP-38
文件页数: 14/148页
文件大小: 1247K
代理商: TAS3103IDBTR
351
0.0625
0.25
0.375
2W
Output
0.25
0.5
Output
W
Triangular Distribution
Quadratic Distribution
16
Bit
Sample
32
Bit
Sample
24
Bit
Sample
20
Bit
Sample
18
Bit
Sample
8-Bit
Headroom
47
40
39
28
27
24
22
20
16
8
0
8-Bit
Resolution
Band
16-Bit
Output SAP
Word Size
32-Bit
Output SAP
Word Size
48-Bit DAP
Data Word
0W
W
0
W
2W
ρ
Figure 330. Dither Data Magnitude (Gain = 1.0)
3.9.4
Dither Statistics
Figure 331 presents plots of the autocorrelation and channel-to-channel correlation properties of the dither data
stream when configured as triangular distributed noise. Figure 331(a) is the circular autocorrelation of 16K samples
of dither data collected from the TAS3103. The audio signal level was set to zero, and the dither data stream was
inserted at the LSB of the output word. The autocorrelation contains a single line of value 8000, at the point of
correlation, and random noise terms of approximately
±150 counts in value. The value 8000 agrees with the selection
of the triangular distribution—50% of the 16K dither output samples are of value
±1. Figure 331(b) is the circular
correlation of 16K samples of dither data from CH1 and 16K samples of dither data from CH2. There are no points
of correlation in this plot, verifying that the two data streams are uncorrelated. The random noise terms are again
approximately
±150 counts in value
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