CDB42L55 Cirrus Logic Inc, CDB42L55 Datasheet - Page 21
![Eval Bd Ultra Low Power Stereo Codec](/photos/9/8/90867/cdb42l55_sml.jpg)
CDB42L55
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
CDB-42L55
DS773DB1
B
A
d
r
d
B
A
d
B
A
r
r
Figure 20. THD+N vs. Volume - Digital In to HP Out
Figure 22. FFT - Digital In to HP Out @ -60 dBFS
Figure 24. Freq. Response - Digital In to HP Out
-100
-105
-110
-115
-120
-100
-120
-140
-60
-65
-70
-75
-80
-85
-90
-95
+3
+2
+1
+0
-20
-40
-60
-80
+0
-1
-2
-3
-50
20
20
50
50
-40
100
100
Master Volume
200
200
(Digital)
-30
500
500
dBr A
Hz
Hz
Headphone Volume
1k
1k
-20
(Analog)
2k
2k
5k
5k
-10
10k
10k
20k
20k
+0
Figure 25. Fade-to-Noise Linearity- Digital In to HP Out
B
A
d
B
A
r
d
r
B
A
d
r
Figure 21.
Figure 23. FFT - Digital In to HP Out - no input
-100
-120
-140
-100
-120
-140
-20
-40
-60
-80
-20
-40
-60
-80
+0
+40
+30
+20
+10
+0
-10
-20
-30
-40
+0
20
20
-125
50
50
FFT - Digital In to HP Out @ 0 dBFS
100
100
-100
200
200
500
500
-75
Hz
dBFS
Hz
1k
1k
2k
-50
2k
CDB42L55
5k
5k
-25
10k
10k
20k
20k
+0
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