AD1987(Rev0) 데이터 시트보기 (PDF) - Analog Devices
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AD1987 Datasheet PDF : 18 Pages
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AD1987
AD1987 SPECIFICATIONS
TEST CONDITIONS
Parameter
Test Condition
Temperature
Digital Supply
Analog Supply
MIC_BIAS_IN (via Low-Pass Filter)
Sample Rate FS
Input Signal (Frequency Sine Wave)
Amplitude for THD + N
Analog Output Pass Band
DAC
ADC
25°C
3.3 V
3.3 V
5.0 V
48 kHz
1008 Hz
–3.0 dB Full Scale
20 Hz to 20 kHz
10 kΩ Output Load: Line Out tests
32 Ω Output Load: Headphone Tests
0 dB Gain
PERFORMANCE
Parameter
Line Out Drive (10 kΩ loads—DAC to Pin)
Total Harmonic Distortion (THD + N)
Dynamic Range (–60 dB in ref to fS A-Weighted)
Signal-to-Noise Ratio
Headphone Drive (32 Ω loads—DAC to Pin)
Total Harmonic Distortion (THD + N)
Dynamic Range (–60 dB in ref to fS A-Weighted)
Signal-to-Noise Ratio
Input Portsn (Mic Boost = 0 dB)
Total Harmonic Distortion (THD + N)
Dynamic Range (–60 dB in ref to fS A-Weighted)
Signal-to-Noise Ratio
GENERAL SPECIFICATIONS
Parameter
DIGITAL DECIMATION AND INTERPOLATION FILTERS1—fS (kHz) = 8 ~ 192
Pass Band
Pass-Band Ripple
Stop Band
Stop-Band Rejection
Group Delay
Group Delay Variation Over Pass Band
ANALOG-TO-DIGITAL CONVERTERS
Resolution
Gain Error (Full-Scale Span Relative to Nominal Input Voltage)2
Interchannel Gain Mismatch (Difference of Gain Errors)
ADC Offset Error1
ADC Crosstalk1
Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L)
Line_In to Other
Min
Typ
Max
Unit
–85
dB
95
dB
95
dB
–83
dB
95
dB
95
dB
–81
dB
90
dB
90
dB
Min
0
0.6 fS
Typ
20
0
24
±0.2
–85
–100
Max
Unit
0.4 fS
Hz
±0.005
dB
Hz
–100
dB
1/fS
μs
Bits
±10
%
±0.5
dB
±5
mV
dB
–80
dB
Rev. 0 | Page 4 of 18 | May 2007
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