參數(shù)資料
型號: XWM8731EDS
廠商: Wolfson Microelectronics
元件分類: Codec
英文描述: Portable Internet Audion CODEC with Headphone Driver and Programmable Sample Rates
中文描述: 便攜式互聯(lián)網(wǎng)三極管編解碼器的耳機(jī)驅(qū)動器和可編程采樣率
文件頁數(shù): 55/56頁
文件大?。?/td> 595K
代理商: XWM8731EDS
WM8731
Advanced Information
WOLFSON MICROELECTRONICS LTD
AI Rev 2.0 February 2001
55
RECOMMENDED EXTERNAL COMPONENTS
WM8731
Codec
RHPOUT
VMID
100
CLKOUT
LOUT
+
47k
100
12
LHPOUT
+
47k
220
μ
F
9
AVDD
AGND
14
15
3.3V
HPVDD
HPGND
11
8
3.3V
ROUT
+
47k
100
13
+
47k
220
μ
F
10
2
0.1
μ
F
10
μ
F
+
16
RLINEIN
MICBIAS
DACLRC
DACDAT
ADCDAT
ADCLRC
BCLK
5.6k
5.6k
+
19
LLINEIN
5.6k
5.6k
220pF
+
20
MICIN
DBVDD
DCVDD
3.3V
DGND
1.5V - 3.3V
+
+
1
28
27
3
Audio Serial Data I/F
5
4
7
6
3-wire or 2-wire
MPU Interface
3-wire Interface
2-wire Interface
SDIN
SCLK
23
24
22
CSB
21
+
1
μ
F
220pF
Rmic
680
47k
17
18
10
μ
F
0.1
μ
F
10k
3.3V
XTO
XTI/MCLK
15pF
15pF
26
25
+
10
μ
F
+
Note:
1. Rmic - The value of this resistor is dependent on the gain setting. Refer to Page 20 for Rmic calculation.
2. Where possible, it is recommended that NPO or COG type capacitors should be used for best performance.
10
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
10
μ
F
1
μ
F
1
μ
F
1
μ
F
1
μ
F
220pF
Figure 55 External Components Diagram
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