ad1843jst Analog Devices, Inc., ad1843jst Datasheet - Page 61

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ad1843jst

Manufacturer Part Number
ad1843jst
Description
Serial-port 16-bit Soundcomm Codec
Manufacturer
Analog Devices, Inc.
Datasheet
REV. 0
–100
–110
Figure 38. AD1843 Resampler Mode Frequency Response Plots (Full-Scale Line-Level Inputs, 0 dB Gain)
Based on 48 kHz sample rate; other sample rates will show slightly different behavior. See the ”Specifica-
tions” section for performance limits. The DAC plots do not reflect the additional beneficial roll-off of
the AD1843 analog filters. Out-of-band images will be attenuated by an additional 31.4 dB at 100 kHz.
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–120
–140
–160
–180
–20
–40
–60
–80
0
0
0
0
4
32
b. DAC Resampler 0–384 kHz
8
64
a. ADC Resampler Full
12
96
16
128
20
160
kHz
24
kHz
192
28
224
32
256
36
288
40
320 352
44
48
–61–
–0.005
–0.010
–0.015
–0.020
–0.025
–0.030
–0.035
–0.004
–0.008
–0.012
–0.016
–0.020
–0.024
–0.028
–0.032
–0.036
0.008
0.005
0.000
0.004
0.000
0
0
c. ADC Resampler Passband
d. DAC Resampler Passband
2
2
4
4
6
6
8
8
kHz
kHz
10
10
12
12
14
AD1843
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16
18
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