AD1984A Просмотр технического описания (PDF) - Analog Devices
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AD1984A Datasheet PDF : 20 Pages
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AD1984A
AD1984A SPECIFICATIONS
TEST CONDITIONS
Parameter
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
DAC1
ADC
1 DAC/ADC tests are performed with AES-17 filter enabled.
PERFORMANCE
Test Condition
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
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
Microphone/Line-In (Pin to ADC, 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
Min
Typ
–86
96
96
–80
96
96
–81
90
90
Parameter
DIGITAL DECIMATION AND INTERPOLATION FILTERS—fS = 8 kHz to 192 kHz1
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)
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 Inputs to Other
Min
0
0.6 fS
Typ
20
0
24
±0.2
–85
–100
Max
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
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 20 | April 2008
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