AD1845 Ver la hoja de datos (PDF) - Analog Devices
Número de pieza
componentes Descripción
Fabricante
AD1845 Datasheet PDF : 40 Pages
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AD1845–SPECIFICATIONS
STANDARD TEST CONDITIONS UNLESS OTHERWISE NOTED
Temperature
25
°C
DAC Test Conditions
Digital Supply (VDD)
Analog Supply (VCC)
Word Rate (FS)
Input Signal
5.0
V
5.0
V
48
kHz
1008
Hz
Calibrated
0 dB Relative to Full Scale
16-Bit Linear Mode
10 kΩ Output Load
Analog Output Passband 20 Hz to 20 kHz
Mute Off, OL = 0
ADC FFT Size
2048
ADC Test Conditions
DAC FFT Size
8192
Calibrated
VIH
5
V
0 dB Gain
VIL
0
V
–1.0 dB Relative to Full Scale
Line Input
ANALOG INPUT
16-Bit Linear Mode
Min
Typ
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
2.55
0.255
2.55
10
1
2.83
0.1
0.283
1
2.83
17
15
Max
3.35
0.335
3.35
PROGRAMMABLE GAIN AMPLIFIER–ADC
Step Size (All Steps Tested)
(0 dB to 22.5 dB)
PGA Gain Range Span
Min
Typ
Max
0.7
1.5
1.9
21.5
22.5
23.5
AUXILIARY LINE, MONO, AND MICROPHONE INPUT ANALOG GAIN/AMPLIFIERS/ATTENUATORS
Min
Typ
Max
Step Size : AUX1, AUX2, LINE, MIC (All Steps Tested)
(+12 dB to –30 dB)
(–31.5 dB to –34.5 dB)
Step Size: M_IN (All Steps Tested)
(0 dB to –39 dB)
(–42 dB to –45 dB)
Input Gain/Attenuation Range: AUX1, AUX2, LINE, MIC
Input Gain/Attenuation Range: M_IN
1.25
1.5
1.75
1
1.5
2.0
2.5
3.0
3.6
2.2
3.0
3.85
45.0
46.5
49.0
42
45
49
DIGITAL DECIMATION AND INTERPOLATION FILTERS*
Passband
Passband Ripple
Transition Band
Stopband
Stopband Rejection
Group Delay
Group Delay Variation Over Passband
*Guaranteed, not tested.
Min
0
0.4 × FS
0.6 × FS
74
Max
0.4 × FS
± 0.1
0.6 × FS
∞
15/FS
0.0
Units
V rms
V p-p
V rms
V p-p
V rms
V p-p
kΩ
pF
Units
dB
dB
Units
dB
dB
dB
dB
dB
dB
Units
Hz
dB
Hz
Hz
dB
µs
–2–
REV. C
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