Specifications

ESS Technology, Inc. SAM0025A-062397 105
ES1879 DATA SHEET
APPENDIX D: SCHEMATIC EXAMPLES
PRELIMINARY
APPENDIX D: SCHEMATIC EXAMPLES
Figure 33 ES1879 Schematic
|LINK | 1879AMP. SCH | PCBUS. SCH | SWITCH.SCH
C8 .1
+12V
IN
3
OUT
1
G N D
2
U3 78L05
C5 0 .1
VDDA
R36 0 ohm
C4 5 .1
VCC
VCC VCC
C5 .1
C6 .1
C4 4 .1
VCC VCC
C3 .1
C4 .1
VCC VCC
NOTE: INSTALL THIS
A[ 15. . 0]
A15
VCC
A
1
B
2
C
3
G1
6
G2 A
4
G2 B
5
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
U2 74LS138
D[ 7 . . 0 ]
D7
23
D6
22
D5
21
D4
20
D3
19
D2
18
D1
17
D0
16
MCL K
66
MSD
67
SEDO/VD/GPI6
92
SEDI/VU/GPI5
91
AEN
14
A11
13
A10
12
A9
11
A8
10
A7
9
A6
8
A5
7
A4
6
A3
5
A2
4
A1
3
A0
2
RESET
73
IRQE/GPO6
93
IRQD/GPO5
94
IRQC/GPO4
95
IRQB/GPO3
96
IRQA
97
DACKBC/GPI3
85
DACKBB
87
DACKBA
89
DRQC/GPI2
84
DRQB
86
DRQA
88
IORB
98
IOWB
99
SWC
26
SWD
25
TC
30
TD
29
SWA
28
SWB
27
DX
62
DR
63
DCLK
64
VDDA
41
GNDA
39
AUXAL
35
AUXAR
36
AUXBL
33
AUXBR
34
LINEL
46
LINER
47
MIC
38
CMR
37
CAP3D
40
CINR
45
FOUTL
43
FOUTR
42
CINL
44
PCSPKO
50
AOUTL
48
AOUTR
49
MS I
60
MS O
59
V D D D
1 5
V D D D
7 4
V D D D
1 0 0
G N D D
1
G N D D
2 4
G N D D
6 1
G N D D
7 8
TB
31
TA
32
DACKBD/MUTE/GPI
90
GNDA
55
DOCKED
72
IILR
70
IISCLK
69
IIDATA
68
FS
65
XSC
57
XSD
56
PSKI
77
IPROM
58
XI
75
GPI0
79
DRQD/GPI1
80
SECS
71
GPO0
81
XA0
54
XA1
53
XA2
52
XA3
51
XO
76
SECLK/ GPO2
83
GPO1
82
U1
ES1879
D0 D1 D2 D3 D4 D5 D6
C7 .1
C21
.22
C9 .22
C2 3 10
AUXBL
R2
7. 5K
R3
7. 5K
C22 10
VDDA
AGND DGND
CD
1 2 3 4
J2 MITSUMI
C1 0 .22
C1 1 .22
C1 2 .1
C1 3
47
C24 . 001
C16 . 047
AUXBR
C1 4
.1
C1 5 . 2 2
D7
A0 A1 A2 A3 A4 A5 A6 A7 A8
RESISTOR IF THE 74LS138 IS NOT INSTALLED
R20 0 o hm
AEN
A13 A14 A12
IORB IOWB DACKBC DACKBB DACKBA DRQC DRQB DRQA RESET
A9 A10 A11
C1 7 . 2 2
C1 8 . 2 2
C1 9 .22
C25 . 0 01
AOUTL
LINE
1 2 3 4 5
J3
3. 5mm STEREO J ACK
1 2 3 4 5
J4
3. 5mm STEREO J ACK
R1 0
2. 2K
R11
2. 2K
R12
2. 2K
R13 2. 2K
VCC
L1
FERRITE BEAD
8 15 7 14 6 13 5 12 4 11 3 10 2 9 1
P1
CONNECT OR DB1 5
VCC
MIC
MSI
R5
2. 2K
AOUTR PCSPKO MS O MS OU T
MSIC
R4
2. 2K
IRQE
IRQD IRQC IRQA
XSD XSC
XA3 XA2
IRQB
1 2
J1
2X1 HEADER
MCL K MS D
DX
IDATA ISCLK ILR
XA1 XA0
R6
2. 2K
R7
2. 2K
R8
2. 2K
R9
2. 2K
MS I MS O
C3 2
.01
C33
150pF
C20
.01
C3 0
.01
C3 1
.01
C28 .01
C2 9 .01
R16 1M
R17 1M
C2 6 .01
C2 7 .01
R1 8 10K
R1 4 1M
R1 5 1M
R21 10K
R1
10K
DR DCLK FS
PC-SPEAKER-IN
DOCKED
H L
USE 0 ohm RESISTOR
TO CONNECT PADS JP1
L 93LC66 H I N T ROM
1 2 3
JP1
SMD PADS
VCC
C2 22pF
Y1
14. 318MHz
C1 22pF
CS
1
CL K
2
DI
3
DO
4
GND
5
ORG
6
NU
7
VCC
8
U5 93LC66
C5 5 .1
VCC
R3 4 1 K
R3 5
1K
VOLUP1878 VOLDN1878 DRQD DACKBD