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WM8739LEDS Datasheet(PDF) 32 Page - Wolfson Microelectronics plc

Part # WM8739LEDS
Description  STEREO AUDIO ADC
PDF  35 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8739LEDS Datasheet(HTML) 32 Page - Wolfson Microelectronics plc

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WM8739
Advanced Information
AI Rev 2.2 September 2001
32
RECOMMENDED EXTERNAL COMPONENTS
Audio Serial Data I/F
3-wire Interface
2-wire Interface
WM8739
ADC
VMID
AVDD
AGND
14
15
3.3V
0.1
µF
10
µF
+
16
ADCLRC
ADCDAT
DBVDD
DCVDD
3.3V
DGND
1.5V - 3.3V
7
6
5
BCLK
8
12
11
SDIN
1
CSB
19
SCLK
20
MODE
2
10
µF0.1µF
XTO
XTI/MCLK
15pF
15pF
4
3
10
µF
RLINEIN
5K
Ω
5K
Ω
47pF
+
470nF
17
LLINEIN
5K
Ω
5K
Ω
47pF
+
470nF
18
0.1
µF
10µF
0.1
µF
3-wire or 2-wire
MPU Interface
10k
Ω
3.3V
Notes:
1. AGND and DGND should be connected as close to the WM8739 as possible.
2. 0.1
µF capacitors should be positioned as close the the WM8739 as possible.
3. Capacitor types should be carefully chosen. Capacitors with very low ESR
are recommended for optimum performance.
Figure 29 External Components Diagram



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