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AD1984B Datasheet(PDF) 6 Page - Analog Devices

Part No. AD1984B
Description  High Definition Audio SoundMAX Codec
Download  20 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD1984B Datasheet(HTML) 6 Page - Analog Devices

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Rev. 0
|
Page 6 of 20
|
February 2008
AD1984B
MICROPHONE BIAS
MIC_BIAS-B, MIC_BIAS-C
MIC_BIAS_IN (Pin 33) = 5 V or 3.3 V
VREF Setting = High-Z
High-Z
VREF Setting = 0 V
0
V dc
VREF Setting = 50%
1.65
V dc
MIC_BIAS_IN (Pin 33) = 5 V
VREF Setting = 80%
3.7
V dc
VREF Setting = 100%
3.9
V dc
MIC_BIAS_IN (Pin 33) = 3.3 V
VREF Setting = 80%
2.86
V dc
VREF Setting = 100%
3.0
V dc
MIC_BIAS-E (When Enabled as BIAS)
VREF Setting = High-Z
High-Z
VREF Setting = 0 V
0
V dc
VREF Setting = 50%
1.65
V dc
VREF Setting = 80%
2.86
V dc
VREF Setting = 100%
3.0
V dc
Output Drive Current
VREF Setting = 50%, 80%, or 100%
1.6
mA
GPIO 0
Input Signal High (VIH)DVIO × 0.60
DVIO
V
Input Signal Low (VIL)0
DVIO × 0.24
V
Output Signal High (VOH)
IOUT = –500 μADVIO × 0.72
DVIO
V
Output Signal Low (VOL)IOUT = +1500 μA0
DVIO × 0.10
V
Input Leakage Current (Signal High) (IIH)150
nA
Input Leakage Current (Signal Low) (IIL)–50
μA
GPIO 1 and 2
Input Signal High (VIH)AVDD × 0.60
AVDD
V
Input Signal Low (VIL)0
AVDD × 0.24
V
Output Signal High (VOH)IOUT = –500 μAAVDD × 0.72
AVDD
V
Output Signal Low (VOL)IOUT = +1500 μA0
AVDD × 0.10
V
Input Leakage Current (Signal High) (IIH)150
nA
Input Leakage Current (Signal Low) (IIL)–50
μA
DM Clock
Output Signal High (VOH)IOUT = –500 μAAVDD × 0.72
AVDD
V
Output Signal Low (VOL)IOUT = +1500 μA0
AVDD × 0.10 V
DM 1/2 and DM_2
Input Signal High (VIH)AVDD × 0.60
AVDD
V
Input Signal Low (VIL)0
AVDD × 0.24
V
Input Leakage Current (Signal High) (IIH)–150
nA
Input Leakage Current (Signal Low) (IIL)–50
nA
S/PDIF-Out-1 and S/PDIF-Out-2
Input Signal High (VIH)DVIO × 0.60
DVIO
V
Input Signal Low (VIL)0
DVIO × 0.24
V
Output Signal High (VOH)
IOUT = –500 μADVIO × 0.72
DVIO
V
Output Signal Low (VOL)IOUT = +1500 μA0
DVIO × 0.10
V
Input Leakage Current (Signal High) (IIH)150
nA
Input Leakage Current (Signal Low) (IIL)–50
μA
Parameter
Min
Typ
Max
Unit


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