CDB4270 Cirrus Logic Inc, CDB4270 Datasheet - Page 32

• Manufacturer Part Number: CDB4270
• Description: BOARD EVAL FOR CS4270 CODEC
• Manufacturer: Cirrus Logic Inc

Specifications of CDB4270

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS4270
• Primary Attributes: Stereo, 24-Bit, 192 kHz Sample Rate
• Secondary Attributes: I²S, S/PDIF Inputs and Outputs, Analog Inputs and Outputs, GUI
• Description/function: Audio CODECs
• Operating Supply Voltage: 5 V
• Product: Audio Modules
• For Use With/related Products: CS4270
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1002

32
B
A
B
A
d
d
r
d
B
A
r
r
-100
-110
-120
-130
-140
-150
-100
-110
-120
-130
-140
-150
+40
+35
+30
+25
+20
+15
+10
Figure 41. 48 kHz, Fade-to-Noise Linearity
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-15
-20
-25
-30
-35
-40
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
+5
+0
+0
-5
-140
T TTT TTT TTTT TT TT TT
T TTTT TTT TTT T TT T T TT
20
20
Figure 45. FFT (96 kHz, 0 dB)
Figure 43. 48 kHz, Crosstalk
50
-120
50
100
100
-100
200
200
-80
500
500
dBFS
Hz
Hz
1k
1k
-60
2k
2k
-40
5k
5k
-20
10k
10k
20k
20k
+0
B
A
V
B
A
d
d
r
r
-250m
-500m
-750m
750m
500m
250m
-1.25
-1.75
1.75
1.25
-100
-110
-120
-130
-140
-150
-1.5
1.5
-10
-20
-30
-40
-50
-60
-70
-80
-90
+5
+4
+3
+2
+1
+0
+0
-1
-2
-3
-4
-5
-1
-2
2
1
0
20
20
0
Figure 42. 48 kHz, Frequency Response
Figure 44. 48 kHz, Impulse Response
Figure 46. FFT (96 kHz, -60 dB)
50
50
500u
100
100
200
200
1m
500
500
1.5m
sec
Hz
Hz
1k
1k
2m
2k
2k
CDB4270
5k
5k
2.5m
DS686DB3
10k
10k
20k
20k
3m