CS4222_02 Datasheet, PDF (7/29 Pages) Cirrus Logic – 20-Bit Stereo Audio Codec with Volume Control

CS4222
ANALOG INPUT CHARACTERISTICS (Test conditions (unless otherwise specified): Input test
signal is a 997 Hz sine wave; measurement bandwidth is 10 Hz to 20 kHz; VD = VA, Fs=48kHz)
CS4222-KS
CS4222-BS/-DS
Parameter
Min
Dynamic Range
A-weighted 95
unweighted 92
Total Harmonic Distortion + Noise (Note 2)
-1 dB -
-20 dB -
-60 dB -
Interchannel Isolation
(1 kHz) -
DC Accuracy
Offset Error
(HPF Enabled) -
(HPF Disabled) -
Interchannel Gain Mismatch
-
Gain Drift
-
Analog Input
Full Scale Differential Input Voltage
1.82
Input Resistance
-
Input Capacitance
-
Common Mode Input Voltage
-
Typ
99
96
-90
-76
-36
90
0
20
0.1
±100
2.0
10
15
2.3
Max Min
-
95
-
92
-86
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2.18 1.82
-
-
-
-
-
-
Typ
99
96
-90
-76
-36
90
0
20
0.1
±100
2.0
10
15
2.3
Max Unit
-
dB
-
dB
-86
dB
-
dB
-
dB
-
dB
-
mV_RMS
-
mV_RMS
-
dB
- ppm/°C
2.18
-
-
-
V_RMS
kΩ
pF
V
ADC Digital Decimation Filter Characteristics (Note 3)
Parameter
Passband
to -0.01 dB corner
Passband Ripple
StopBand
StopBand Attenuation
(Note 4)
Group Delay
Group Delay Variation
HPF Characteristics
Frequency Response
-3 dB
-0.1 dB
Phase Deviation
@ 20 Hz
Passband Ripple
Min
0
-0.01
0.625
80
-
-
-
-
-
-
Typ
-
-
-
-
15/Fs
-
3.7
20
10
-
Max
0.4535
+0.01
-
-
-
0
Unit
Fs
dB
Fs
dB
s
s
-
Hz
-
Hz
-
Degree
0
dB
Notes: 2. Referenced to typical fullscale differential input voltage.
3. The filter characteristics have been normalized to the sample rate (Fs) and can be referenced to the
desired sample rate by multiplying the given characteristic by Fs.
4. The analog modulator samples the input at 6.144 MHz for an Fs equal to 48 kHz. There is no rejection
of input signals which are multiples of the sampling frequency (n x 6.144 MHz +/- 21.8 kHz; n = 0, 1, ...).
DS236F1
7