WM8740 Wolfson Microelectronics plc, WM8740 Datasheet - Page 22

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WM8740

Manufacturer Part Number
WM8740
Description
24-bit, High Performance 192khz Stereo Dac
Manufacturer
Wolfson Microelectronics plc
Datasheet

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WM8740
w
Figure 17 Impulse Response (Normal Roll-off,
Figure 19 De-emphasis frequency response (fs=32kHz)
Figure 21 De-emphasis frequency response (fs=48kHz)
-10.0
-10.0
-1.0
-2.0
-3.0
-4.0
-5.0
-6.0
-7.0
-8.0
-9.0
-1.0
-2.0
-3.0
-4.0
-5.0
-6.0
-7.0
-8.0
-9.0
0.0
0.0
-0.2
-0.4
0.8
0.6
0.4
0.2
1
0
0
0
0
no De-emphasis)
2000
2000
4000
10
4000
6000
20
6000
8000
Time (input samples)
Frequency (Fs)
Frequency (Fs)
10000
8000
30
12000
10000
14000
40
12000
16000
50
14000
18000
16000
20000
60
Figure 18 Impulse Response (Slow Roll-off,
Figure 20 De-emphasis frequency response (fs=44.1kHz)
Figure 22 De-emphasis frequency response error
(fs=32kHz)
-10.0
-0.1
-0.2
-0.3
-0.4
0.4
0.3
0.2
0.1
0.0
-1.0
-2.0
-3.0
-4.0
-5.0
-6.0
-7.0
-8.0
-9.0
0.0
-0.2
-0.4
0.8
0.6
0.4
0.2
0
1
0
0
0
no De-emphasis)
2000
10
4000
5000
6000
20
Time (input samples)
Frequency (Fs)
Frequency (Fs)
10000
8000
30
PD, Rev 4.3, August 2009
10000
40
12000
15000
Production Data
50
14000
20000
16000
60
22

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