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WM8352 Datasheet(PDF) 24 Page - Wolfson Microelectronics plc

Part # WM8352
Description  Wolfson AudioPlus™ Stereo CODEC with Power Management
PDF  336 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8352 Datasheet(HTML) 24 Page - Wolfson Microelectronics plc

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WM8352
Production Data
w
PD, February 2011, Rev 4.4
24
7.9
DIGITAL INTERFACES
Test Conditions
TA = +25ºC unless otherwise noted.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SDA, SCLK, MCLK, BCLK, LRCLK, ADCDATA, DACDATA, GPIO4 to GPIO9
Input HIGH Level
VIH
0.7
×DBVDD
V
Input LOW Level
VIL
0.3
×DBVDD
V
Output HIGH Level
VOH
sinking 1mA
0.9
×DBVDD
V
Output LOW Level
VOL
sourcing 1mA
0.1xDBVDD
V
7.10 AUXILIARY ADC
Test Conditions
TA = +25ºC unless otherwise noted.
PARAMETER
CONDITIONS
SYMBOL
MIN
TYP
MAX
UNITS
Input resistance
(AUX1,2,3,4, USB, LINE, BATT
and CHIPTEMP)
AUXADC_SCALEn [1:0] = 00
∞
∞
∞
Ω
AUXADC_SCALEn [1:0] = 01
2.2
kΩ
AUXADC_SCALEn [1:0]= 10
330
660
kΩ
AUXADC_SCALEn [1:0] = 11
330
440
kΩ
Input Voltage range.
AUX1,2,3,4,USB,LINE,BATT and
CHIPTEMP
(VRTC = 2.7V & VLINE (max)= 5.5V,
VBG=1.25V)
AUXADC_SCALEn [1:0] = 01
AUXADC_REF = 0
VBG
V
AUXADC_SCALEn [1:0] = 01
AUXADC_REF = 1
VRTC
V
AUXADC_SCALEn [1:0] = 10
AUXADC_REF = 0
2 x VBG
V
AUXADC_SCALEn [1:0] = 10
AUXADC_REF = 1
2 x VRTC
V
AUXADC_SCALEn [1:0] = 11
AUXADC_REF = 0
VLINE
V
AUXADC_SCALEn [1:0] = 11
AUXADC_REF = 1
4 x VBG
V
Input capacitance
(AUX1,2,3,4, USB, LINE, BATT
and CHIPTEMP)
Input is selected
(INPUT_SELECT) and
AUXADC_SCALEn [1:0] not = 00
2.08
pF
VRTC quiescent current
AUX_RBMODE = 0,
AUXADC_ENA = 1
140
μA
VRTC quiescent current
AUX_RBMODE = 1
AUXADC_ENA = 1
151
μA
LINE_INT quiescent current
<<1
mA
ADCCLK frequency
fAUXCLK
400
470/512
800
kHz
ADC Resolution
12
bits
ADC Conversion Time
13
CLK
periods
Aux ADC accuracy
Non-calibrated (calibration
possible using the VBG input on
AUX3). 1% of this variation due
to BG variation over temperature.
2.2
%



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