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WM8750CLSEFL/R 데이터시트(PDF) 53 Page - Wolfson Microelectronics plc

부품명 WM8750CLSEFL/R
상세설명  Stereo CODEC for Portable Audio Applications
PDF  65 Pages
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제조업체  WOLFSON [Wolfson Microelectronics plc]
홈페이지  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8750CLSEFL/R 데이터시트(HTML) 53 Page - Wolfson Microelectronics plc

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Production Data
WM8750L
w
PD, Rev 4.4, August 2012
53
SAVING POWER AT HIGHER SUPPLY VOLTAGES
The analogue supplies to the WM8750L can run from 1.8V to 3.6V. By default, all analogue circuitry
on the device is optimized to run at 3.3V. This set-up is also good for all other supply voltages down
to 1.8V. At lower voltages, performance can be improved by increasing the bias current. If low power
operation is preferred the bias current can be left at the default setting. This is controlled as shown
below.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R23 (17h)
Additional
Control(1)
7:6
VSEL
[1:0]
11
Analogue Bias optimization
00: Highest bias current, optimized for AVDD=1.8V
01: Bias current optimized for AVDD=2.5V
1X: Lowest bias current, optimized for AVDD=3.3V
Table 46 Analogue Bias Selection



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