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WM8232 Fiches technique(PDF) 22 Page - Cirrus Logic

No de pièce WM8232
Description  105MSPS 3-Channel AFE with Sensor
PDF  141 Pages
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Fabricant  CIRRUS [Cirrus Logic]
Site Internet  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8232 Fiches technique(HTML) 22 Page - Cirrus Logic

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WM8232
22
Rev 4.6
ADC PGA BIAS CURRENT CONTROL
The WM8232 can be changed the bias current for PGA and ADC comparator as the following step. It
would be effective for high frequency operation.
1.
R1C0h=1
2.
R1CBh=11h
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R448 (1C0h)
User access
control2
0
User_KEY2
0
0 = User access2 disabled
1 = User access2 enabled
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R459 (1CBh)
Comp control
1:0
PT_COMP
01
01 = Standard operation
11 = High performance operation
Other = Inhibit.
Notes:
1.
To change the Comp control, the USER_KEY2 bit must be set to ‘1’.
2.
If it’s not required to change this register, must be set as default.



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