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WM9705SEFT/V Datasheet(PDF) 52 Page - Wolfson Microelectronics plc

Part # WM9705SEFT/V
Description  Multimedia AC??7 CODEC with Integrated Touch Screen Controller
PDF  55 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM9705SEFT/V Datasheet(HTML) 52 Page - Wolfson Microelectronics plc

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



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