CS4223_03 Datasheet, PDF (6/34 Pages) Cirrus Logic – 24-Bit 105 dB Audio Codec with Volume Control

CS4223 CS4224
ANALOG CHARACTERISTICS (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.)
Parameter
Symbol
Analog Input Characteristics
Total Harmonic Distortion
THD
Dynamic Range
A-weighted
unweighted
Total Harmonic Distortion + Noise (Note 3) THD+N
Interchannel Isolation
(1 kHz)
Interchannel Gain Mismatch
Offset Error
with High Pass Filter
Full Scale Input Voltage (Differential)
Gain Drift
Input Resistance
Input Capacitance
Common Mode Input Voltage
Common Mode Rejection Ratio
CMRR
A/D Decimation Filter Characteristics
Passband
(Note 4)
Passband Ripple
Stopband
(Note 4)
Stopband Attenuation
(Note 5)
Group Delay (Fs = Output Sample Rate) Left
(Note 6)
Right
Group Delay Variation vs. Frequency
High Pass Filter Characteristics
t_{gd_L}
t_{gd_R}
∆t_gd
Frequency Response
-3 dB (Note 4)
-0.1 dB
Phase Deviation
@ 20 Hz
(Note 4)
Passband Ripple
CS4223/4 - KS
Min Typ Max
- 0.0014 -
98 105
-
95 102
-
-
-97 -90
-
90
-
-
-
0.1
-
-
0
1.9 2.0 2.1
-
100
-
10
-
-
-
-
15
-
2.3
-
75
-
-
0
- 21.8
-
- ±0.01
30
- 6114
80
-
-
- 18/Fs -
- 17/Fs -
-
-
0
-
3.7
-
-
20
-
-
10
-
-
-
0
CS4223/4 - BS/ - DS
Min Typ Max Unit
- 0.0014 -
%
95 105
-
dB
92 102
-
dB
-
-97 -87 dB
-
90
-
dB
-
-
0.1 dB
-
-
0 LSB
1.9 2.0 2.1 Vrms
-
100
- ppm/°C
10
-
-
kΩ
-
-
15
pF
-
2.3
-
V
75
-
-
dB
0
- 21.8 kHz
-
- ±0.01 dB
30
- 6114 kHz
80
-
-
dB
- 18/Fs -
s
- 17/Fs -
s
-
-
0
µs
-
3.7
-
Hz
-
20
-
Hz
-
10
- Degree
-
-
0
dB
Notes: 3. Referenced to typical full-scale differential input voltage (2 Vrms).
4. 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.
5. 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...).
6. Group delay for Fs = 48 kHz, t_gd = 18/48 kHz = 375 µs.
6
DS290F1