CS4245-CQZR Cirrus Logic Inc, CS4245-CQZR Datasheet - Page 54

• Manufacturer Part Number: CS4245-CQZR
• Description: IC,Soundcard Circuits,QFP,48PIN,PLASTIC
• Manufacturer: Cirrus Logic Inc

54
9. ADC FILTER PLOTS
Figure 35. ADC Single-Speed Transition Band (Detail)
Figure 37. ADC Double-Speed Stopband Rejection
Figure 33. ADC Single-Speed Stopband Rejection
-100
-120
-130
-140
-10
-100
-120
-130
-140
-110
-110
-20
-30
-40
-60
-80
-90
-2
-3
-4
-6
-8
-9
-20
-30
-40
-60
-80
-90
-50
-70
-5
-7
-50
-70
-10
-1
-10
0
0.45
0
0
0.0
0.0
0.46 0.47
0.1
0.1
Frequency (norm alized to Fs)
Frequency (norm alized to Fs)
Frequency (norm alized to Fs)
0.2
0.2
0.48
0.3
0.3
0.49
0.4
0.4
0.5
0.5
0.5
0.51
0.6
0.6
0.52
0.7
0.7
0.53
0.8
0.8
0.54
0.9
0.9
0.55
1.0
1.0
Figure 38. ADC Double-Speed Stopband Rejection
Figure 34. ADC Single-Speed Stopband Rejection
Figure 36. ADC Single-Speed Passband Ripple
-100
-120
-130
-140
-0.02
-0.04
-0.06
-0.08
-100
-120
-130
-140
-110
-0.10
-110
-20
-30
-40
-60
-80
-90
0.08
0.06
0.04
0.02
0.00
-20
-30
-40
-60
-80
-90
-50
-70
-50
-70
-10
0.10
-10
0
0
0.40 0.42 0.44
0.40 0.42 0.44
0
0.05
Frequency (norm alized to Fs)
Frequency (norm alized to Fs)
Frequency (norm alized to Fs)
0.1
0.46 0.48 0.50
0.46 0.48 0.50
0.15
0.2
0.25
0.52
0.52
0.3
0.54
0.54
0.35
0.56
0.56
0.4
CS4245
0.58
0.45
0.58
DS656F2
0.60
0.60
0.5