CS4223 CS4224
1. CHARACTERISTICS AND SPECIFICATIONS
ANALOG CHARACTERISTICS (TA = 25° C; VA, VD = +5 V; Full Scale Input Sine wave, 997 Hz;
Fs = 48 kHz; Measurement Bandwidth is 20 Hz to 20 kHz; Local components as shown in Figures 4 and 5; SPI
mode, Format 0, unless otherwise specified.)
CS4223/4 - KS
CS4223/4 - BS
Parameter
Analog Input Characteristics
ADC Resolution
Symbol Min
Typ
Max
Min
Typ
Max
Unit
-
-
-
24
-
-
-
-
24
-
Bits
%
Total Harmonic Distortion
Dynamic Range
THD
0.0014
0.0014
A-weighted
unweighted
100
97
105
102
-
-
95
92
105
102
-
-
dB
dB
Total Harmonic Distortion + Noise
Interchannel Isolation
(Note 1) THD+N
(1 kHz)
-
-97
90
-
-92
-
-
-97
90
-
-87
-
dB
dB
-
-
-
-
Interchannel Gain Mismatch
0.1
0
0.1
0
dB
Offset Error
with High Pass Filter
-
-
-
-
LSB
Vrms
ppm/°C
kΩ
Full Scale Input Voltage (Differential)
Gain Drift
1.9
-
2.0
100
-
2.1
-
1.9
-
2.0
100
-
2.1
-
Input Resistance
10
-
-
10
-
-
Input Capacitance
-
15
-
-
15
-
pF
Common Mode Input Voltage
-
2.3
-
2.3
V
A/D Decimation Filter Characteristics
Passband
(Note 2)
0
-
-
21.8
±0.01
6114
-
0
-
-
21.8
±0.01
6114
-
kHz
dB
kHz
dB
s
Passband Ripple
Stopband
-
-
(Note 2)
(Note 3)
30
80
-
-
-
30
80
-
-
-
Stopband Attenuation
Group Delay (Fs = Output Sample Rate)
(Note 4)
tgd
15/Fs
-
15/Fs
-
Group Delay Variation vs. Frequency
∆tgd
-
-
0
-
-
0
µs
High Pass Filter Characteristics
Frequency Response
-3 dB (Note 2)
-0.1 dB
@ 20 Hz
-
-
3.7
20
-
-
-
-
3.7
20
-
-
Hz
Hz
Phase Deviation
Passband Ripple
(Note 2)
-
-
10
-
-
-
-
10
-
-
Degree
dB
0
0
Notes: 1. Referenced to typical full-scale differential input voltage (2 Vrms).
2. Filter characteristics scale with output sample rate. For output sample rates, Fs, other than 48 kHz, the
0.01 dB passband edge is 0.4535x Fs and the stopband edge is 0.625x Fs.
3. 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 where
n = 0,1,2,3...).
4. Group delay for Fs = 48 kHz, tgd = 15/48 kHz = 312 µs.
4
DS290PP3
CIRRUS [ CIRRUS LOGIC ]
