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TLV320AIC23B Datasheet, PDF (40/50 Pages) Texas Instruments – STEREO AUDIO CODEC 8 TO 96 KHZ WITH INTEGRATED HEADPHONE AMPLIFIER | |||
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FILTER RESPONSE
vs
NORMALIZED AUDIO SAMPLING FREQUENCY
10
â10
â30
â50
â70
â90
0
0.5
1
1.5
2
2.5
3
Normalized Audio Sampling Frequency
Figure 3â25. DAC Digital Filter Response 3: USB Mode Only
FILTER RESPONSE
vs
NORMALIZED AUDIO SAMPLING FREQUENCY
0.4
0.3
0.2
0.1
0
â0.1
â0.2
â0.3
â0.4
0
0.05 0.1
0.15
0.2 0.25
0.3 0.35
0.4 0.45
0.5
Normalized Audio Sampling Frequency
Figure 3â26. DAC Digital Filter Ripple 3: USB Mode Only
The delay between the converter is a function of the sample rate. The group delays for the AIC23B are shown in the
following table. Each delay is one LR clock (1/sample rate).
Table 3â1. Group Dealys
FILTER
DAC type 0
DAC type 1
DAC type 2
DAC type 3
ADC type 0
ADC type 1
ADC type 2
ADC type 3
GROUP DELAY
11
18
5
5
12
20
3
6
3â20
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