CS4222
ANALOG CHARACTERISTICS
( T
A
= 25°C; VA, VD = +5V; Full Scale Input Sine wave,
997 Hz; Fs = 48 kHz; Measurement Bandwidth is 20 Hz to 20 kHz; Local components as shown in "Recom-
mended Connection Diagram"; SPI mode, Format 0, unless otherwise specified.)
Parameter
Symbol
Min
-
THD
(A-weighted):
(unweighted):
-1 dB
(Note 1)
(1 kHz)
(with High Pass Filter)
(HPF defeated with CAL)
THD+N
TBD
TBD
-
-
-
-
-
1.9
-
10
-
-
(Note 2)
(Note 2)
(Note 3)
(Note 4)
t
gd
∆
t
gd
(Note 2)
(Note 2)
0
-
30
80
-
-
-
-
-
Typ
-
0.003
99
96
-90
90
0.1
-
TBD
2.0
100
-
-
2.3
-
-
-
-
15/Fs
-
3.7
20
10
Max
20
-
-
-
TBD
-
-
0
-
2.1
-
-
15
-
21.8
±0.01
6114
-
-
0
-
-
-
Units
Bits
%
dB
dB
dB
dB
dB
LSB
LSB
Vrms
ppm/°C
kΩ
pF
V
kHz
dB
kHz
dB
s
µs
Hz
Hz
Degree
Analog Input Characteristics
ADC Resolution
Total Harmonic Distortion
Dynamic Range
Total Harmonic Distortion + Noise
Interchannel Isolation
Interchannel Gain Mismatch
Offset Error
Full Scale Input Voltage (Differential)
Gain Drift
Input Resistance
Input Capacitance
Common Mode Input Voltage
A/D Decimation Filter Characteristics
Passband
Passband Ripple
Stopband
Stopband Attenuation
Group Delay (Fs = Output Sample Rate)
Group Delay Variation vs. Frequency
High Pass Filter Characteristics
Frequency Response:
Phase Deviation
-3 dB
-0.1 dB
@ 20 Hz
Passband Ripple
-
-
0
dB
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 0.4535xFs and the stopband edge is 0.625xFs.
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, t
gd
= 15/48 kHz = 312µs
*
Parameter definitions are given at the end of this data sheet.
Specifications are subject to change without notice.
2
DS236PP3
CIRRUS [ CIRRUS LOGIC ]
