CDB42L55 Cirrus Logic Inc, CDB42L55 Datasheet - Page 70

• Manufacturer Part Number: CDB42L55
• Description: Eval Bd Ultra Low Power Stereo Codec
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42L55

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42L55
• Primary Attributes: 2 Stereo Analog Inputs, Stereo Line and Headphone Outputs, S/PDIF Transmitter and Receiver
• Secondary Attributes: GUI, USB, RS232, I2C Interfaces, USB or External or Battery Power Supply
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1506; CDB-42L55

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9. ADC & DAC DIGITAL FILTERS
Figure 27. ADC Passband Ripple
−0.05
−0.15
−0.25
−0.01
−0.02
−0.03
−0.04
−0.05
−10
−20
−30
−40
−50
−60
Figure 31. DAC Passband Ripple
0.25
0.15
0.05
−0.1
−0.2
−100
Figure 29. ADC Transition Band
0.03
0.02
0.01
Figure 33. DAC Transition Band
0.2
0.1
−10
−20
−30
−40
−50
−60
−70
−80
−90
0
0.4
0
0
0
0
0.4
0
0.42
0.05
0.05
0.43
0.44
0.1
0.46
0.1
0.46
0.15
0.15
Frequency (normalized to Fs)
0.49
Frequency (normalized to Fs)
frequency (Normalized to Fs)
frequency (Normalized to Fs)
0.48
0.2
0.2
0.52
0.25
0.5
0.25
0.55
0.52
0.3
0.3
0.58
0.54
0.35
0.35
0.56
0.61
0.4
0.4
0.45
0.58
0.64
0.45
0.5
0.6
Figure 34. DAC Transition Band (Detail)
Figure 30. ADC Transition Band Detail
Figure 28. ADC Stopband Rejection
−10
−20
−30
−40
−50
−60
−10
−20
−30
−40
−50
−60
−70
−80
−90
0
−100
−10
Figure 32. DAC Stopband
−10
−20
−30
−40
−50
−60
−70
−80
−90
0
−1
−2
−3
−4
−5
−6
−7
−8
−9
0.45
0.45
0
0
0
0
0.46
0.1
0.46
0.1
0.47
0.2
0.47
0.2
0.48
0.3
0.48
0.3
Frequency (normalized to Fs)
frequency (Normalized to Fs)
Frequency (normalized to Fs)
frequency (Normalized to Fs)
0.49
0.4
0.49
0.4
0.5
0.5
0.5
0.5
0.51
0.51
0.6
0.6
0.52
0.52
0.7
0.7
0.53
0.53
0.8
0.8
CS42L55
0.54
0.54
0.9
0.9
DS773F1
0.55
1
1