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WM8716SEDS/V Scheda tecnica(PDF) 22 Page - Wolfson Microelectronics plc

Il numero della parte WM8716SEDS/V
Spiegazioni elettronici  High Performance 24-bit, 192kHz Stereo DAC
PDF  26 Pages
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Produttore elettronici  WOLFSON [Wolfson Microelectronics plc]
Homepage  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8716SEDS/V Scheda tecnica(HTML) 22 Page - Wolfson Microelectronics plc

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WM8716
Production Data
w
PD, Rev 4.2,August 2008
22
APPLICATIONS INFORMATION
RECOMMENDED EXTERNAL COMPONENTS
28
DVDD
DGND
ML/I2S
AGND
AVDDL
AVDD
11
CLKO
VMIDR
C
11
C
10
C
9
AGND
8
7
Software I/F or
Hardware Control
WM8716
NOTES:
1. AGND and DGND should be connected as close to the WM8716 as possible.
2. C
2 to C5, C9 and C11 should be positioned as close to the WM8716 as possible.
3. Capacitor type used can have a big effect on device performance. It is
recommended that capacitors with very low ESR are used and that ceramics
are either NPO or COG type material to achieve best performance from the
WM8716.
AVDDR
AGNDR
AGNDL
C
3
C
4
C
5
C
6
AGND
C
2
DVDD
C
1
27
MC/DM1
26
MD/DM0
23
CSB/IWO
22
RSTB
VOUTR
16
C
7
VOUTL
C
8
AC-Coupled Output
to External LPF
12
MODE8X
17
DIFFHW
13
21
ZERO
AVDD
AVDD
R
1
18
VMIDL
C
12
XTI Buffered Output
1
LRCIN
2
DIN
3
BCKIN
5
XTI
6
XTO
Audio Serial Data I/F
System Clock Input or
Oscillator Input/Output
DGND
+
+
+
+
15
9
20
14
10
19
4
24
MODE
25
MUTEB
Figure 20 External Components Diagram
RECOMMENDED EXTERNAL COMPONENTS VALUES
COMPONENT
REFERENCE
SUGGESTED
VALUE
DESCRIPTION
C1 and C6
10
µF
De-coupling for DVDD and AVDD.
C2 to C5
0.1
µF
De-coupling for DVDD and AVDD.
C7 and C8
10
µF
Output AC coupling caps to remove VMID DC level from outputs.
C9 and C11
0.1
µF
C10 and C12
10
µF
Reference de-coupling capacitors for VMIDR and VMIDL.
R1
10k
Ω
Resistor to AVDD for open drain output operation.
Table 22 External Components Description



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