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ES9826Q Datasheet(PDF) 24 Page - ESS Technology,Inc

Part # ES9826Q
Description  32-bit High performance 2 Channel ADC w/PGA
PDF  88 Pages
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Manufacturer  ESS [ESS Technology,Inc]
Direct Link  http://www.esstech.com
Logo ESS - ESS Technology,Inc

ES9826Q Datasheet(HTML) 24 Page - ESS Technology,Inc

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ES9826 Datasheet
VERSION 0.1.2
ESS TECHNOLOGY, INC. 109 Bonaventura Drive, San Jose, CA 95134, USA Tel (408) 643-8800 • WWW.ESSTECH.COM
24
6
Minimum phase fast roll-off
Low latency, minimal pre ringing and low passband ripple, image rejection @
0.55fs
7
Minimum phase slow roll-off
Lowest latency at the cost of image rejection
8
Minimum phase fast roll-off low
dispersion
Provides a nice balance of the low latency of minimum phase filters and the
low dispersion of linear phase filters. Minimal pre-ringing is added to
achieve the low dispersion in the audio band.
Table 14 – FIR digital filter properties
Note on Minimum phase filters:
Minimum phase filters are asymmetric filters that work to minimize the pre-echo of the filter, while still maintaining an
excellent frequency response and they peak earlier than linear phase filters, resulting in a lower group delay. Minimum
phase filters usually feature zero cycles of pre-echo, which can result in improved audio quality.
PCM Filter Properties (44.1kHz Sampling)
Minimum phase
Parameter
Conditions
MIN
TYP
MAX
UNIT
Pass band
0.46 x fs
Hz
Stop band
-82 dB
0.54 x fs
Hz
Group Delay
2.90/fs
9.24/fs
s
Flatness (ripple)
0.0030
dB
Linear phase apodizing fast roll-off
Parameter
Conditions
MIN
TYP
MAX
UNIT
Pass band
0.41 x fs
Hz
Stop band
-75 dB
0.5 x fs
Hz
Group Delay
33.25/fs
s
Flatness (ripple)
0.0034
dB
Linear phase fast roll-off
Parameter
Conditions
MIN
TYP
MAX
UNIT
Pass band
0.46 x fs
Hz
Stop band
-76 dB
0.54 x fs
Hz
Group Delay
32.88/fs
s
Flatness (ripple)
0.0043
dB
Linear phase fast roll-off low ripple
Parameter
Conditions
MIN
TYP
MAX
UNIT
Pass band
0.46 x fs
Hz
Stop band
-73 dB
0.55 x fs
Hz
Group Delay
33.00/fs
s
Flatness (ripple)
0.0040
dB



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