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AD1987 Datasheet(PDF) 4 Page - Analog Devices

Part No. AD1987
Description  High Definition Audio SoundMAX Codec
Download  18 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD1987 Datasheet(HTML) 4 Page - Analog Devices

 
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Rev. 0
|
Page 4 of 18
|
May 2007
AD1987
AD1987 SPECIFICATIONS
TEST CONDITIONS
PERFORMANCE
GENERAL SPECIFICATIONS
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
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
DAC
10 k
Ω Output Load: Line Out tests
32
Ω Output Load: Headphone Tests
ADC
0 dB Gain
Parameter
Min
Typ
Max
Unit
Line Out Drive (10 k
Ω loads—DAC to Pin)
Total Harmonic Distortion (THD + N)
Dynamic Range (–60 dB in ref to fS A-Weighted)
Signal-to-Noise Ratio
–85
95
95
dB
dB
dB
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
–83
95
95
dB
dB
dB
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
–81
90
90
dB
dB
dB
Parameter
Min
Typ
Max
Unit
DIGITAL DECIMATION AND INTERPOLATION FILTERS1—fS (kHz) = 8 ~ 192
Pass Band
0
0.4 fS
Hz
Pass-Band Ripple
±0.005
dB
Stop Band
0.6 fS
Hz
Stop-Band Rejection
–100
dB
Group Delay
20
1/fS
Group Delay Variation Over Pass Band
0
μs
ANALOG-TO-DIGITAL CONVERTERS
Resolution
24
Bits
Gain Error (Full-Scale Span Relative to Nominal Input Voltage)
2
±10
%
Interchannel Gain Mismatch (Difference of Gain Errors)
±0.2
±0.5
dB
ADC Offset Error
1
±5mV
ADC Crosstalk1
Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L)
–85
dB
Line_In to Other
–100
–80
dB


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