CS4218 Datasheet, PDF (39/44 Pages) Cirrus Logic – 16-Bit Stereo Audio Codec

CS4218
Parameter
Passband
Passband Ripple
Transition Band
Stop Band
Stop Band Rejection
Group Delay
Units
CS4218
Hz
0-0.4Fs
dB
± 0.1
Hz
0.4-0.6Fs
Hz
0.6Fs
dB
74dB
sec
8/Fs
TABLE A1: Decimation Filter Comparison
CS4216
0-0.45Fs
± 0.2
0.45-0.55
0.55Fs
80dB
16/Fs
Parameter
Passband
Passband Ripple
Transition Band
Stop Band
Stop Band Rejection
Group Delay
Units
CS4218
Hz
0-0.4Fs
dB
± 0.1
Hz
0.4-0.6Fs
Hz
0.6Fs
dB
74dB
sec
8/Fs
TABLE A2: Interpolation Filter comparison
CS4216
0-0.45Fs
± 0.1
0.45-0.55 Fs
0.55Fs
74dB
16/Fs
Digital Power Supplies and Input Logic Levels
The CS4218 and CS4216 both require that the analog power supply be 5V +/- 0.25V.
The CS4218 digital power supply can operate from 5V +/- 0.25V and 3.3V +/- 0.3V. When operated
from a 5V supply, the CS4218 is TTL and CMOS compatible inputs & outputs. When operated from a
3.3V power supply, the CS4218 is LVTTL and LVCMOS compatible.
In comparison, the CS4216 operates from a 5V +/- 0.25V power supply. It provides only CMOS logic
level inputs. The CS4216 requires level-translation logic (using the 74HCT family) when interfacing
it’s inputs with TTL logic.
DS135F1
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