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WM8728 Datasheet(PDF) 25 Page - Wolfson Microelectronics plc

Part # WM8728
Description  24-bit, 192kHz Stereo DAC with Volume Control and DSD Support
PDF  28 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8728 Datasheet(HTML) 25 Page - Wolfson Microelectronics plc

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WM8728
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WOLFSON MICROELECTRONICS LTD
PP Rev 1.2 April 2001
25
RECOMMENDED EXTERNAL COMPONENTS
20
DVDD
DGND
LATI2S
AGND
AVDD
VMID
C
9
C
8
AGND
7
6
Software I/F or
Hardware Control
WM8728
Notes:
1. AGND and DGND should be connected as close to the WM8728 as possible.
2. C
2, C3, C4 and C8 should be positioned as close to the WM8728 as possible.
3. Capacitor types should be carefully chosen. Capacitors with very low ESR are
recommended for optimum performance.
VREFP
VREFN
C
3
C
4
C
5
C
2
DVDD
C
1
19
SCKDSD
18
SDIDEM
VOUTR
11
C
6
VOUTL
C
7
AC-Coupled
VOUTR/L
to External LPF
16
MODE
17
MUTEB
8
AVDD
4
MCLK
3
BCKIN
2
DIN
Audio Serial Data I/F
DGND
AGND
1
LRCIN
10
14
9
13
+
12
+
+
Software/hardware
control mode select
5
ZERO
15
CSBIWL
Figure 30 External Components Diagram
RECOMMENDED EXTERNAL COMPONENTS VALUES
COMPONENT
REFERENCE
SUGGESTED
VALUE
DESCRIPTION
C1 and C5
10
µF
De-coupling for DVDD and AVDD/VREFP
C2 to C4
0.1
µF
De-coupling for DVDD and AVDD/VREFP
C6 and C7
10
µF
Output AC coupling caps to remove midrail DC level from outputs.
C8
0.1
µF
C9
10
µF
Reference de-coupling capacitors for VMID pin.
Table 22 External Components Description



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