AD1984 Просмотр технического описания (PDF) - Analog Devices
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AD1984 Datasheet PDF : 20 Pages
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AD1984
Parameter
MICROPHONE BIAS
MIC_BIAS-B, MIC_BIAS-C
MIC_BIAS_IN (Pin 33) = +5 V or +3.3 V
MIC_BIAS_IN (Pin 33) = +5 V
MIC_BIAS_IN (Pin 33) = +3.3 V
VREF Setting = Hi-Z
VREF Setting = 0 V
VREF Setting = 50%
VREF Setting = 80%
VREF Setting = 100%
VREF Setting = 80%
VREF Setting = 100%
MIC_BIAS-E (When enabled as BIAS)
VREF Setting = Hi-Z
VREF Setting = 0 V
VREF Setting = 50%
VREF Setting = 80%
VREF Setting = 100%
Output Drive Current
GPIO 0
VREF Setting = 50%, 80%, or 100%
Input Signal High (VIH)
Input Signal Low (VIL)
Output Signal High (VOH)
Output Signal Low (VOL)
Input Leakage Current (Signal High) (IIH)
Input Leakage Current (Signal Low) (IIL)
GPIO 1 and 2
IOUT = –500 μA
IOUT = +1500 μA
Input Signal High (VIH)
Input Signal Low (VIL)
Output Signal High (VOH)
Output Signal Low (VOL)
Input Leakage Current (Signal High) (IIH)
Input Leakage Current (Signal Low) (IIL)
DM Clock
IOUT = –500 μA
IOUT = +1500 μA
Output Signal High (VOH)
Output Signal Low (VOL)
DM 1/2 and 3/4
IOUT = –500 μA
IOUT = +1500 μA
Input Signal High (VIH)
Input Signal Low (VIL)
Input Leakage Current (Signal High) (IIH)
Input Leakage Current (Signal Low) (IIL)
POWER SUPPLY
Analog (AVDD) 3.3 V ±5%
Power Supply Range
Power Dissipation
Supply Current
Digital (DVDD) 3.3 V ±10%
Power Supply Range
Power Dissipation
Supply Current
Digital I/O (DVIO) 3.3 V ±10%
Power Supply Range
Power Dissipation
Supply Current
Power Supply Rejection (reference to fS 100 mV p-p Signal @ 1 kHz)1
1 Guaranteed but not tested.
2 Measurements reflect main ADC.
3 RMS values assume sine wave input.
Min
Typ
Hi-Z
0
1.65
3.7
3.9
2.86
3.0
Hi-Z
0
1.65
2.86
3.0
1.6
DVIO × 0.60
0
DVIO × 0.72
0
–150
–50
AVDD × 0.60
0
AVDD × 0.72
0
–150
–50
AVDD × 0.72
0
AVDD × 0.60
0
–150
–50
3.13
3.30
99
31
2.97
3.30
162
58
2.97
3.30
3.96
1.2
80
Rev. 0 | Page 6 of 20 | January 2007
Max
Unit
V dc
V dc
V dc
V dc
V dc
V dc
V dc
V dc
V dc
V dc
V dc
mA
DVIO
V
DVIO × 0.24 V
DVIO
V
DVIO × 0.10 V
nA
μA
AVDD
V
AVDD × 0.24 V
AVDD
V
AVDD × 0.10 V
nA
μA
AVDD
V
AVDD × 0.10 V
AVDD
V
AVDD × 0.24 V
nA
nA
3.46
V
mW
mA
3.63
V
mW
mA
3.63
V
mW
mA
dB
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