CS4226
ANALOG CHARACTERISTICS (Full Scale Input Sine wave, 990.52 Hz; Fs = 44.1 kHz (PLL in use);
Measurement Bandwidth is 20 Hz to 20 kHz, unless specified otherwise.)
CS4226-KQ/-KQZ CS4226-BQ/-BQZ/-DQ
Parameter
Symbol Min
Typ
Max
Min
Typ
Max
Units
Analog Input Characteristics - Minimum gain setting (0 dB) Differential Input; unless otherwise specified.
ADC Resolution
Stereo Audio channels
Mono channel
16
16
-
-
20
20
16
16
-
-
20
20
Bits
Bits
Total Harmonic Distortion
Dynamic Range
THD
0.003
-
0.003
-
%
(A weighted, Stereo)
(unweighted, Stereo)
(A weighted, Mono)
92
-
89
95
92
-
-
-
-
90
-
87
93
90
-
-
-
-
dB
dB
dB
Total Harmonic
Distortion + Noise -1 dB, Mono
-1 dB, Stereo
(Note 3) THD+N
(Note 1)
-
-
-88
-
-82
-72
-
-
-86
-
-80
-70
dB
dB
Interchannel Isolation
Interchannel Gain Mismatch
Programmable Input Gain Span
Gain Step Size
-
90
0.1
9
-
-
-
90
0.1
9
-
-
dB
dB
-
-
8
10
3.3
0
8
10
3.3
0
dB
2.7
3
2.7
3
dB
Offset Error (with high pass filter)
Full Scale Input Voltage (Single Ended):
Gain Drift
-
-
-
-
LSB
Vrms
ppm/°C
kΩ
0.90
1.0
100
-
1.10
-
0.90
1.0
100
-
1.10
-
-
10
-
-
10
-
Input Resistance
(Note 4)
-
-
Input Capacitance
-
15
-
-
15
-
pF
CMOUT Output Voltage
A/D Decimation Filter Characteristics
Passband
-
2.3
-
2.3
V
(Note 5)
0.02
-
20.0
0.01
0.02
-
-
20.0
0.01
kHz
dB
Passband Ripple
-
-
-
Stopband
(Note 5)
(Note 6)
27.56
-
5617.2 27.56
-
5617.2 kHz
Stopband Attenuation
80
-
-
15/Fs
-
-
-
80
-
-
15/Fs
-
-
-
dB
s
Group Delay (Fs = Output Sample Rate) (Note 7)
Group Delay Variation vs. Frequency
t
gd
∆ t
-
0
-
0
µs
gd
Notes: 3. Referenced to typical full-scale differential input voltage (2Vrms).
4. Input resistance is for the input selected. Non-selected inputs have a very high (>1MΩ) input resistance.
The input resistance will vary with gain value selected, but will always be greater than the min. value
specified
5. Filter characteristics scale with output sample rate.
6. The analog modulator samples the input at 5.6448 MHz for an output sample rate of 44.1 kHz. There is
no rejection of input signals which are multiples of the sampling frequency (n × 5.6448 MHz 20.0 kHz
where n = 0,1,2,3...).
7. Group delay for Fs = 44.1 kHz, t = 15/44.1 kHz = 340 µs
gd
DS188F4
5
CIRRUS [ CIRRUS LOGIC ]
