CS4231A Datasheet, PDF (11/76 Pages) List of Unclassifed Manufacturers – PARALLEL INTERFACE MULTIMEDIA AUDIO CODEC

CS4231A
+5V Analog (preferred)
If a separate +5V analog
supply is available, attach here
and remove the 2.0Ω resistor
1 µF + 0.1 µF
2.0Ω
0.1 µF
Ferrite Bead
0.1 µF
0.1 µF 1 µF
+
0.1 µF
1 µF ₊
+5V
Supply
36 35 19
15
1
7
47kΩ
47
1 µF
33 pF
21
16.9344MHz 33 pF
22
33 pF
17
24.576MHz 33 pF
18
29
Microphone
Inputs
0.33 µF ₂₈
0.33 µF ₃₀
Line
Inputs ^{0.33 µF} 27
0.33 µF ₃₉
0.33 µF ₄₂
Auxilary ^{0.33 µF} 38
Inputs
0.33 µF ₄₃
0.33 µF ₄₆
0.33 µF
41
47kΩ
1 µF
1 µF ₄₀
47kΩ
This trace
must be
very short
26
1000 pF
NPO
31
1000 pF
NPO
32
+
10 µF
0.47 µF
33
0.1 µF
VA2 VA1 VD4
MOUT
VD3
VD1
VD2
XTAL2I
XTAL2O
XTAL1I
XTAL1O
LMIC
RMIC
LLINE
RLINE
LAUX1
RAUX1
LAUX2
RAUX2
MIN
ROUT
LOUT
RFILT
LFILT
VREF
VREFI
AGND1,2
34 37
CS4231A
( ) PLCC
Pinout
SCLK ⁵¹
FSYNC ⁵⁰
SDOUT ⁵²
SDIN ⁴⁹
PDWN
VD3/4
23
DSP
or
ASIC
59
18
CS
Address
Decode
A1 ⁹
A0 ¹⁰
61
WR
60
RD
56
XCTL0
58
XCTL1
D7
8
D0
DBDIR ⁶²
DBEN ⁶³
PDRQ ¹⁴
CDRQ ¹²
PDAK ¹³
CDAK ¹¹
IRQ ⁵⁷
(Optional)
74F245
DD ₈
AA
TT
AA
BA
DIR
G
ISA
BUS
SA 19:2
AEN
SAI
SAO
IOWC
IORC
D7
D0
DRQ<X>
DRQ<Y>
DAK<X>
DAK<Y>
IRQ<Z>
TEST DGND3, 4, 7, 8 DGND1,2
55 16 20 53 64 2 8 _{Board Analog}
Ground
Board Digital
Ground
Figure 1. Recommended Connection Diagram
(See Figures 16 & 17 for Layout Recommendations)
DS139PP2
11