cs4924 Cirrus Logic, Inc., cs4924 Datasheet - Page 28

• Manufacturer Part Number: cs4924
• Description: Multi-channel Digital Audio Decoders Logic
• Manufacturer: Cirrus Logic, Inc.

28
E X T E R N A L
R O M
D[7:0]
A[15:8]
A[7:0]
/CE
/O E
SYSTEM
M I C RO
CONTROL LER
OCTAL F/ F
Q[7:0]
D[7:0]
OCTAL F/ F
Q[7:0]
+3.3V Supply (+3.3VD)
D[7:0]
Figure 16. SPI Control with External Memory
NOTE: A capacitor pair (1 u F and 0.1 uF) must be supplied for each power pin.
NOTE: +3.3VA is simply +3.3VD after fil tering through the ferrite bead. Pin 32 must be referenced to +3.3VA
+
1 u F
+3.3VD
0.1 uF
+
EMAD[7:0]
1 u F
0.1 uF
+3.3VD
+
1 u F
3 7
3 8
2 0
1 9
1 8
3 6
2 1
1 0
1 1
1 4
1 5
1 6
1 7
6
7
5
4
8
9
0.1 uF
D D
D C
I N T R E Q _ _ A B O OT
S C D O U T
S C D I N
C S
S C C L K
R E S E T
R D _ _ E M O E
W R _ _ G P I O 1 0
E X T M E M
E M A D 7
E M A D 6
E M A D 5
E M A D 4
E M A D 3
E M A D 2
E M A D 1
E M A D 0
F E R R I T E B E A D
CS4923/4/5/6/7/8/9
+
1 u F
0.1 uF
AU DATA 0
AU DATA 1
AU DATA 2
S L R C L K N
C M P R E Q
C M P DAT
C M P C L K
CS4923/4/5/6/7/8/9
S DATA N
NOTE: Only AUDATA0 connection applies for the CS492
C L K S E L
X M T 9 5 8
S C L K N
L R C L K
C L K I N
M C L K
S C L K
F LT 2
F LT 1
+
0.22 uF
+3.3VA
4 7 u F
4 4
4 3
4 2
4 1
4 0
3 9
2 7
2 8
2 9
2 2
2 5
2 6
3
3 0
3 1
3 2
3 3
+3.3VA
+
3 3
3 3
2.2 uF
3 3
OSCILLATOR
DAC s
DS262F2
DIR or
A D C s
OPT_TX