WM9705_06 WOLFSON [Wolfson Microelectronics plc], WM9705_06 Datasheet - Page 52
WM9705_06
Manufacturer Part Number
WM9705_06
Description
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM9705_06.pdf
(55 pages)
- Current page: 52 of 55
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WM9705
RECOMMENDED EXTERNAL COMPONENTS
Figure 26 External Components Diagram
w
LAYOUT NOTES:
1. C1 to C6, C20, C23 and C24 should be placed as close as possible to
the relevant WM9705 connecting pin as possible.
2. AGND and GND should be connected as close as possible to the
WM9705.
3. For added strength and heat dissipation, it is recommended that
GND_PADDLE (pin 49) is connected to AGND.
X-
TouchScreen
Y+
Y-
Direct battery measurement (6.5V max)
MASTER MODE
AVDD
AC-LINK
(OPEN)
10 uF
X+
AGND
C4
C5
0.1 uF
SLAVE MODE
C6
(CLOSED)
0.1 uF
C9
C10
C11
C12
C13
C14
C15
10 uF
C2
C7
C8
DVDD
C1
1uF
1uF
1uF
1uF
1uF
1uF
1uF
1uF
1uF
AVDD
0.1 uF
0.1 uF
C3
45
25
38
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
30
31
29
5
6
8
1
9
PCBEEP
PHONE
X+ / AUXL
X- / AUXR
Y+ / VIDL
Y- / VIDR
CDL
CDGND
CDR
MIC1
MIC2
LINEINL
LINEINR
DVDD1
DVDD2
AVDD1
AVDD2
SDATAOUT
BITCLK
SDATAIN
SYNC
CIDO
AUXADC
BMON
PDRES
RESET
B
C16
22 pF
WM9705
XTLI
N
2
24.576 MHz
DGND
X
T
XTLOU
GND_PADDLE
3
EAPD / BUSY
T
MASK / LRC
22 pF
C17
MONOOUT
LINEOUTR
SPEN / I2S
LINEOUTL
VREFOUT
HPOUTR
HPOUTL
PENDET
DGND1
DGND2
HPGND
AGND1
AGND2
CX3D1
CX3D2
SPDIF
VREF
CAP2
49
48
26
42
40
35
36
37
39
41
46
43
44
47
27
28
32
33
34
4
7
0.1 uF
0.1 uF
C20
C18
+
+
+
+
+
AGND
GND
AGND
2.2 uF
2.2 uF
2.2 uF
220 uF
220 uF
AGND
PD Rev 4.4 August 2006
10 uF
+
C21
AGND
C27
C29
C28
C26
C30
0.047 uF
10 uF
C19
C22
Production Data
+
0.1 uF
C23 C24
AGND
0.1 uF 10 uF
+
52
C25
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