AD1881 查看數據表（PDF） - Analog Devices
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AD1881 Datasheet PDF : 22 Pages
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- ANALOGDEVICES fAX-ON-DEMAND HOTLINE
Page 11
AD1881-SPECIFICATIONS
STANDARD TEST CONDITIONS UNLESS OTHERWISE
Temperature
Digital Supply (VDD)
Analog Supply (Vce)
Sample Rate (Fs)
Input Signal
25
°C
3.3/5.0
V
5.0
V
48
kHz
1008
Hz
NOTED
DAC Test Canditians
Calibrated
-3 dB Attenuation Relative to Full-Scale
Input 0 dB
10 ill Output Load
ADC Test CanditianS
Calibrated
0 dB Gain
Input -3.0 dB Relative to Full-Scale
ANALOG INPUT
OBSOLETE Parameter
Input Voltage (RMS Values Assume Sine Wave Input)
liNE_IN, AUX, CD, VIDEO, PHONE_IN, PC_BEEP
= MIC with +20 dB Gain (M20 1)
= MIC with 0 dB Gain (M20 0)
Input Impedance*
Input Capacitance*
MASTER VOLUME
Parameter
Step Size (0 dB to -94.5 dB); liNE_OUf_I..,
Output Attenuation Range Span*
Step Size (0 dB to -46.5 dB); MONO_OUf
liNE_OUf_R
MiD
I
I
I
I
Typ
1
2.83
0.1
0.283
1
2.83
20
5
Max
[ts
Vnns
Vp-p
Vnns
Vp-p
Vnns
Vp-p
ill
7.5
pF
Min
Typ
Max
Units
1.5
dB
-94.5
dB
1.5
dB
Output Attenuation Range Span*
-46.5
dB
Mute Attenuation of 0 dB Fundamental*
80
dB
PROGRAMMABLE GAIN AMPUFIER-ADC
Parameter
Step Size (0 dB to 22.5 dB)
PGA Gain Range Span
MiD
Typ
1.5
22.5
Max
Units
dB
dB
ANALOG MIXER-INPUT GAINJAMPUFlERSJA TTENUA TORS
Parameter
Min
Typ
I
Signal-to-Noise Ratio (SNR)
CD to IlNE_OUf
90
Other to IlNE- Ouf
90
I
Step Size (+ 12 dB to -34.5 dB): (All Steps Tested)
MIC, IlNE_IN, Aux, CD, VIDEO, PHONE_IN, DAC
1.5
Input Gain/Attenuation Range: MIC, IlNE, Aux, CD, VIDEO, PHONE_IN, DAC
46.5
Step Size (0 dB to -45 dB): (All Steps Tested) PC_BEEP
3.0
Input Gain/Attenuation Range: PC_BEEP
45
*Guarnnteed, not tested.
Specificationssubject to change without notia::.
Max I Units
dB
dB
dB
dB
dB
dB
-2-
REV. 0
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