CS42428 Datasheet, PDF (8/67 Pages) Cirrus Logic – 114 dB, 192kHz 8-Ch CODEC WITH PLL

CS42428
2 TYPICAL CONNECTION DIAGRAMS
+3.3 V to +5 V
+ 0.1 µF 0.01 µF
10 µF
0.01 µF 0.1 µF ₊
10 µF
+5 V
+ 0.1 µF 0.01 µF
10 µF
0.01 µF 0.1 µF ₊
10 µF
4
51
VD
VD
48 _GPO1
47 _GPO2
46 _GPO3
45 _GPO4
44 _GPO5
43 _GPO6
42 _GPO7
41
24
VA
VA
36
AOUTA1+
37
AOUTA1-
AOUTB1+ ³⁵
34
AOUTB1-
32
AOUTA2+
33
AOUTA2-
Analog Conditioning
and Muting
Analog Conditioning
and Muting
Analog Conditioning
and Muting
+2.5 V
to +5 V
53
VLS
0.1 µF
AOUTB2+ ³¹
30
AOUTB2-
Analog Conditioning
and Muting
OSC
CS5361
A/D Converter
CS5361
A/D Converter
59 _OMCK
58 _ADCIN1
57 _ADCIN2
55
RMCK
CS42428
AOUTA3+ ²⁸
AOUTA3- ²⁹
AOUTB3+ ²⁷
26
AOUTB3-
Analog Conditioning
and Muting
Analog Conditioning
and Muting
+1.8 V
to +5 V
Digital Audio
Processor
Micro-
Controller
56 _{ADC_SDOUT}
60
ADC_LRCK
61
ADC_SCLK
3 _{DAC_LRCK}
2 _{DAC_SCLK}
1 _{DAC_SDIN1}
64 _{DAC_SDIN2}
63 _{DAC_SDIN3}
62 _{DAC_SDIN4}
11
INT
12 _RST
7
SCL/CCLK
8
SDA/CDOUT
9
AD1/CDIN
10 _AD0/CS
See
Note
6
VLC
0.1 µF
Note: Resistors are required for
I²C control port operation
DGND DGND
5 52
22
AOUTA4+
AOUTA4- ²³
Analog Conditioning
and Muting
21
AOUTB4+
AOUTB4- ²⁰
Analog Conditioning
and Muting
+VA
38
MUTEC
15
AINL+
AINL- ¹⁶
***
Mute
Drive
***
*** Pull up or down as required on startup
Analog
2I7n0p0utpF*
Buffer *
Left Analog Input
14
AINR+
13
AINR-
Analog
2I7n0p0utpF*
Buffer *
Right Analog Input
VQ ¹⁷
18
FILT+
REFGND ¹⁹
39
LPFLT
* See CDB42428 for a recommended filter.
+
0.1 µF 100 µF
+
0.1 µF 4.7 µF
RFILT**
** Refer to Table 1
for proper values
AGND AGND
25
40
CFILT** CRIP**
Connect DGND and AGND at single point near Codec
Figure 1. Typical Connection Diagram
8