參數(shù)資料
型號: AK4671EG
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Stereo CODEC with MIC/RCV/HP-AMP
中文描述: 立體聲編解碼器麥克風(fēng)/垃圾車/惠普腺苷
文件頁數(shù): 112/164頁
文件大小: 1792K
代理商: AK4671EG
[AK4671]
MS0666-E-00
2007/10
- 112 -
SAR 10bit ADC
The AK4671 incorporates a 10-bit successive approximation resistor A/D converter for DC measurement.
The A/D converter output is a straight binary format as shown in
Table 93
:
Input Voltage
(AVDD
1.5LSB)
~
(AVDD
2.5LSB)
~
:
0.5LSB
~
0
~
Table 93. Output Code
When PMSAD bit is set to “1”, 10bit ADC is powered-up. When the control register is read, A/D conversion is executed
and data is output. In case of 4-wire serial control mode, 10bit A/D data is output from 9th to 18th CCLK clock when 4th
bit is set to “1” just after R/W bit.
10bit ADC supports 3 kinds of analog input. A1-0 bits select the measurement modes.
Mode
A1
A0
0
0
0
1
0
1
2
1
0
3
1
1
Table 94. SAR ADC Measurement Mode (N/A: Not available)
Output Code
3FFH
3FEH
:
001H
000H
AVDD
(AVDD
1.5LSB)
1.5LSB
0.5LSB
Input Channel
SAIN1
SAIN2
SAIN3
N/A
(default)
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