WM8990ECS/RV Wolfson Microelectronics, WM8990ECS/RV Datasheet - Page 167

• Manufacturer Part Number: WM8990ECS/RV
• Description: Audio CODECs Stereo CODEC w.Class AB/D speaker driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8990ECS/RV

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

w
Production Data
DE-EMPHASIS FILTER RESPONSES
Figure 98 De-Emphasis Digital Filter Response (32kHz)
Figure 100 De-Emphasis Digital Filter Response (44.1kHz)
Figure 102 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 99 De-Emphasis Error (32kHz)
Figure 101 De-Emphasis Error (44.1kHz)
Figure 103 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
PD, March 2009, Rev 4.0
12000
20000
14000
20000
25000
WM8990
16000
18000
30000
25000
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