CS49300 Family DSP
+2.5V Supply (+2.5VD)
NOTE: A capacitor pair (1 uF and 0.1 uF) must be supplied for each power pin.
NOTE: +2.5VA is simply +2.5VD after filtering through the ferrite bead. Pin 32 must be referenced to +2.5VA
FERRITE BEAD
+2.5VA
+
1 uF
0.1 uF
+
1 uF
0.1 uF
+
1 uF
0.1 uF
+
1 uF
0.1 uF
+
47 uF
+2.5VD
Resistor Pack 10k
3.3k
+2.5VD
3.3k
3.3k
4.7k
4.7k
23
12
VD3
VD2
VD1
VA
37
38
34
1
DD
DC
MCLK
SCLK
44
43
42
33
33
MICROCONTROLLER
SPI INTERFACE
20
19
6
18
7
36
LRCLK
INTREQ
SCDOUT
AUDATA0
SCDIN
AUDATA1
CS
AUDATA2
SCCLK
RESET
CMPDAT
CMPCLK
DACs
41
40
39
27
28
29
CS493XX
5
4
RD__GPIO11
CMPREQ
DIR or
ADCs
OPT_TX
SDATAN
SCLKN
WR__GPIO10
SLRCLKN
22
25
26
21
8
9
10
11
14
15
16
17
GPIO8
XMT958
GPIO7
GPIO6
CLKIN
GPIO5
GPIO4
GPIO3
GPIO2
DGND1
DGND2
AGND
3
30
33
OSCILLATOR
10k
CLKSEL
FLT2
FLT1
31
32
33
+2.5VA
+
C1
GPIO1
GPIO0
13
24
35
E M A D _ G PIO [8:0]
2
DGND3
R1
3.3k
C2
C3
Figure 15. SPI Control
28
DS339PP4