CS4225 Datasheet, PDF (4/30 Pages) Cirrus Logic – Digital Audio Conversion System

CS4225
16-Bit Audio A/D Decimation Filter Characteristics
(See graphs towards the
end of this data sheet)
Parameter
Symbol Min
Typ
Max Units
Passband ( to -3 dB corner)
(Fs is conversion freq.)
0
-
0.454Fs Hz
Passband Ripple
-
-
±0.1
dB
Transition Band
0.40Fs
-
0.60Fs Hz
Stop Band
≥ 0.60Fs
-
-
Hz
Stop Band Rejection
75
-
-
dB
Group Delay
-
10/Fs
-
s
Group Delay Variation vs. Frequency
-
-
0.0
µs
D/A Interpolation Filter Characteristics (See graphs toward the end of this data sheet)
Parameter
Symbol Min
Typ
Max Units
Passband (to -3 dB corner)
(Fs is conversion freq.)
0
-
0.476Fs Hz
Passband Ripple
-
-
±0.1
dB
Transition Band
0.442Fs
-
0.567Fs Hz
Stop Band
≥0.567Fs
-
-
Hz
Stop Band Rejection
50
-
-
dB
Stop Band Rejection
with Ext. 2Fs RC filter
57
-
-
dB
Group Delay
-
12/Fs
-
s
Group Delay Variation vs. Frequency
-
-
TBD
µs
4
DS86PP8