WM8990ECS/RV Wolfson Microelectronics, WM8990ECS/RV Datasheet - Page 165

• 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
ADC FILTER RESPONSES
Figure 90 ADC Digital Filter Frequency Response
ADC HIGH PASS FILTER RESPONSES
Figure 92 ADC Digital High Pass Filter Frequency
Response (48kHz, Hi-Fi Mode, ADC_HPF_CUT[1:0]=00)
MAGNITUDE(dB)
-100
-120
-140
2.1246m
-1.1717
-2.3455
-3.5193
-4.6931
-5.8669
-7.0407
-8.2145
-9.3883
-10.562
-11.736
-20
-40
-60
-80
20
0
0.00
1
2.6923
7.2484
0.25
19.515
52.54
Frequency (fs)
141.45
0.50
380.83
1.0253k
2.7605k
0.75
7.432k
20.009k
Figure 91 ADC Digital Filter Ripple
Figure 93 ADC Digital High Pass Filter Ripple (48kHz,
Voice Mode, ADC_HPF_CUT=01, 10 and 11)
hpf_response.res MAGNITUDE(dB)
hpf_response2.res#1 MAGNITUDE(dB)
-2.3338m
-0.02
-0.04
-0.06
-0.08
0.08
0.06
0.04
0.02
-8.3373
-16.672
-25.007
-33.342
-41.677
-50.012
-58.347
-66.682
-75.017
-83.352
-0.1
0.1
0
0.00
2
5.0248
12.624
31.716
79.683
Frequency (fs)
200.19
hpf_response2.res MAGNITUDE(dB)
0.25
502.96
PD, March 2009, Rev 4.0
1.2636k
3.1747k
WM8990
7.9761k
20.039k
165