
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
SYSTEM
MICRO
CONTROLLER
EXTERNAL
ROM
/CE
/OE
A[15:8]
A[7:0]
D[7:0]
OCTAL F/F
Q[7:0]
D[7:0]
OCTAL F/F
Q[7:0]
D[7:0]
+2.5VD
+2.5VD
EMAD[7:0]
37 DD
38 DC
20 INTREQ__ABOOT
19 SCDOUT
6 SCDIN
18 CS
7 SCCLK
36 RESET
CS493XX
5 RD__EMOE
4 WR__GPIO10
21 EXTMEM
8 EMAD7
9 EMAD6
10 EMAD5
11 EMAD4
14 EMAD3
15 EMAD2
16 EMAD1
17 EMAD0
MCLK 44
SCLK 43
LRCLK 42
AUDATA0 41
AUDATA1 40
AUDATA2 39
CMPDAT 27
CMPCLK 28
CMPREQ 29
SDATAN 22
SCLKN 25
SLRCLKN 26
XMT958 3
CLKIN 30
33
33
33
CLKSEL 31
FLT2 32
FLT1 33
+2.5VA
+ C1
DACs
DIR or
ADCs
OPT_TX
OSCILLATOR
R1
C2
C3
Figure 16. SPI Control with External Memory
32
DS339F7