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AD1984 Datasheet(PDF) 6 Page - Analog Devices

Part No. AD1984
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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AD1984 Datasheet(HTML) 6 Page - Analog Devices

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Rev. 0
|
Page 6 of 20
|
January 2007
AD1984
MICROPHONE BIAS
MIC_BIAS-B, MIC_BIAS-C
MIC_BIAS_IN (Pin 33) = +5 V or +3.3 V
VREF Setting = Hi-Z
Hi-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 = Hi-Z
Hi-Z
V dc
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 3/4
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
POWER SUPPLY
Analog (AVDD) 3.3 V ±5%
Power Supply Range
Power Dissipation
Supply Current
3.13
3.30
99
31
3.46
V
mW
mA
Digital (DVDD) 3.3 V ±10%
Power Supply Range
Power Dissipation
Supply Current
2.97
3.30
162
58
3.63
V
mW
mA
Digital I/O (DVIO) 3.3 V ±10%
Power Supply Range
Power Dissipation
Supply Current
2.97
3.30
3.96
1.2
3.63
V
mW
mA
Power Supply Rejection (reference to fS 100 mV p-p Signal @ 1 kHz)
1
80
dB
1 Guaranteed but not tested.
2 Measurements reflect main ADC.
3 RMS values assume sine wave input.
Parameter
Min
Typ
Max
Unit


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