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AD1852 Datasheet PDF : 20 Pages
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AD1852
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 8 to Figure 13 show the calculated frequency response of the digital interpolation filters. Figure 14 to Figure 25 show the performance of
the AD1852 as measured by an Audio Precision System 2 Cascade. For the wideband plots, the noise floor shown in the plots is higher
than the actual noise floor of the AD1852. This is caused by the higher noise floor of the high bandwidth ADC used in the Audio Precision
measurement system. The two-tone test shown in Figure 16 is per the SMPTE standard for measuring intermodulation distortion.
0.0010
0
0.0008
–20
0.0006
–40
0.0004
0.0002
–60
0
–80
–0.0002
–0.0004
–0.0006
–0.0008
–100
–120
–140
–0.0010
0 2 4 6 8 10 12 14 16 18 20 22
FREQUENCY (kHz)
Figure 8. Pass-Band Response 8× Mode, 48 kHz Sample Rate
–160
0
50
100
150
200
250
300
350
FREQUENCY (kHz)
Figure 11. Complete Response, 8× Mode, 48 kHz Sample Rate
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
–10 5
10 15 20 25 30 35 40 45
FREQUENCY (kHz)
Figure 9. 44 kHz Pass-Band Response 4× Mode, 96 kHz Sample Rate
0
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–60
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–100
–120
–140
–160
0
50
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FREQUENCY (kHz)
Figure 12. Complete Response, 4× Mode, 96 kHz Sample Rate
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
10 20 30 40 50 60 70 80 90
FREQUENCY (kHz)
Figure 10. 88 kHz Pass-Band Response 2× Mode, 192 kHz Sample Rate
0
–20
–40
–60
–80
–100
–120
–140
–160
0
50
100
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250
FREQUENCY (kHz)
Figure 13. Complete Response, 2× Mode, 192 kHz Sample Rate
Rev. A | Page 9 of 20
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