AD1848 データシートの表示（PDF） - Analog Devices
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AD1848 Datasheet PDF : 28 Pages
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AD1848K–SPECIFICATIONS
STANDARD TEST CONDITIONS UNLESS
OTHERWISE NOTED
Temperature
25
°C
Digital Supply (VDD)
5.0
V
Analog Supply (VCC)
5.0
V
Word Rate (FS)
48
kHz
Input Signal
1008
Hz
Analog Output Passband 20 Hz to 20 kHz
ADC FFT Size
2048
DAC FFT Size
8192
VIH
2.4
V
VIL
0.8
V
VOH
2.4
V
VOL
0.4
V
ANALOG INPUT
Input Voltage (RMS Values Assume Sine Wave Input)
Line
Mic with +20 dB Gain (MGE = 1)
Mic with 0 dB Gain (MGE = 0)
Input Impedance
Input Capacitance
DAC Input Conditions
Post-Autocalibrated
0 dB Attenuation
–2.0 dB Relative to Full Scale
16-Bit Linear Mode
No Output Load
Mute Off
ADC Input Conditions
Post-Autocalibrated
0 dB Gain
–3.0 dB Relative to Full Scale
Line Input
16-Bit Linear Mode
Min
Typ
Max
1
2.6
2.8
3.0
0.1
0.26
0.28
0.3
1
2.6
2.8
3.0
20
15
PROGRAMMABLE GAIN AMPLIFIER—ADC
Step Size (0 dB to 22.5 dB)
(All Steps Tested, –30 dB Input)
PGA Gain Range Span*
Min
Typ
Max
1.3
1.5
1.7
21.5
22.5
23.5
AUXILIARY INPUT ANALOG AMPLIFIERS/ATTENUATORS
Min
Typ
Max
Step Size (+12.0 dB to –33.0 dB)
(All Steps Tested, –14.5 dB Input)
Auxiliary Gain/Attenuation Range Span*
1.3
1.5
1.7
45.5
46.5
47.5
Units
V rms
V p-p
V rms
V p-p
V rms
V p-p
kΩ
pF
Units
dB
dB
Units
dB
dB
–2–
REV. 0
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