WM8734 ETC-unknow, WM8734 Datasheet - Page 35

• Manufacturer Part Number: WM8734
• Description: Stereo Audio Codec
• Manufacturer: ETC-unknow

WM8734
TERMINOLOGY
1.
2.
DAC FILTER RESPONSES
Figure 24 DAC Digital Filter Frequency Response –Type 1
Figure 26 DAC Digital Filter Frequency Response –Type 2
ADC FILTER RESPONSES
w
Stop Band Attenuation (dB) - the degree to which the frequency spectrum is attenuated (outside audio band)
Pass-band Ripple – any variation of the frequency response in the pass-band region
-100
-100
-100
-20
-40
-60
-80
-20
-40
-60
-80
-20
-40
-60
-80
0
0
0
0
0
0
0.5
0.5
0.5
1
1
1
Frequency (Fs)
Frequency (Fs)
Frequency (Fs)
1.5
1.5
1.5
2
2
2
2.5
2.5
2.5
3
3
3
Figure 25 DAC Digital Filter Ripple –Type 1
Figure 27 DAC Digital Filter Ripple –Type 2
-0.01
-0.02
-0.03
-0.04
-0.01
-0.02
-0.03
-0.04
-0.05
-0.06
-0.01
-0.02
-0.03
-0.04
-0.05
-0.06
0.04
0.03
0.02
0.01
0.02
0.01
0.02
0.01
0
0
0
0
0
0
0.05
0.05
0.05
0.1
0.1
0.15
0.15
0.2
0.1
0.2
Frequency (Fs)
Frequency (Fs)
Frequency (Fs)
0.25
0.25
0.15
AI Rev 2.2 November 2001
0.3
0.3
Advanced Information
0.35
0.35
0.4
0.2
0.4
0.45
0.45
0.25
0.5
0.5
35