wm8961 Wolfson Microelectronics plc, wm8961 Datasheet - Page 106

• Manufacturer Part Number: wm8961
• Description: Ultra-low Power Stereo Codec With 1w Stereo Class D Speaker Drivers And Ground Referenced Headphone Drivers
• Manufacturer: Wolfson Microelectronics plc

DE-EMPHASIS FILTER RESPONSES
w
WM8961
Figure 58 De-Emphasis Digital Filter Response (32kHz)
Figure 60 De-Emphasis Digital Filter Response (44.1kHz)
Figure 62 De-Emphasis Digital Filter Response (48kHz)
-10
-10
-12
-10
-1
-2
-3
-4
-5
-6
-7
-8
-9
-2
-4
-6
-8
0
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
0
0
0
0
5000
5000
5000
10000
10000
MAGNITUDE(dB)
Frequency (Hz)
MAGNITUDE(dB)
MAGNITUDE(dB)
Frequency (Hz)
Frequency (Hz)
10000
15000
15000
20000
15000
20000
25000
20000
25000
30000
Figure 59 De-Emphasis Error (32kHz)
Figure 61 De-Emphasis Error (44.1kHz)
Figure 63 De-Emphasis Error (48kHz)
-0.05
-0.15
-0.05
-0.05
-0.15
0.25
0.15
0.05
0.15
0.05
0.15
0.05
-0.1
-0.1
-0.1
0.3
0.2
0.1
0.1
0.2
0.1
0
0
0
0
0
0
2000
5000
5000
4000
10000
6000
10000
MAGNITUDE(dB)
MAGNITUDE(dB)
MAGNITUDE(dB)
Frequency (Hz)
Frequency (Hz)
Frequency (Hz)
8000
15000
10000
15000
PP, August 2009, Rev 3.1
12000
20000
14000
20000
25000
Pre-Production
16000
18000
30000
25000
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