ANALOG INPUT CHARACTERISTICS (CS42438-DMZ)
(Test Conditions (unless otherwise specified):VLS = VLC = VD = 3.3 V, VA = 5 V; Full scale input sine wave: 1 kHz
through the active input filter on page 51; Measurement Bandwidth is 10 Hz to 20 kHz unless otherwise specified.)
Differential
Typ
Single-Ended
Typ
Parameter
Single Speed Mode
Dynamic Range
Min
Max
Min
Max
Unit
Fs=48 kHz
A-weighted
unweighted
97
94
105
102
-
-
94
91
102
99
-
-
dB
dB
Total Harmonic Distortion + Noise
(Note 5)
-1 dB
-20 dB
-60 dB
-
-
-
-98
-82
-42
-90
-
-
-
-
-
-95
-79
-39
-87
-
-
dB
dB
dB
Double Speed Mode
Fs=96 kHz
Dynamic Range
A-weighted
unweighted
97
94
-
105
102
99
-
-
-
94
91
-
102
99
96
-
-
-
dB
dB
dB
40 kHz bandwidth unweighted
Total Harmonic Distortion + Noise
(Note 5)
-1 dB
-20 dB
-60 dB
-1 dB
-
-
-
-
-98
-82
-42
-87
-90
-
-
-
-
-95
-79
-39
-87
-87
dB
dB
dB
dB
-
-
-
-
-
-
40 kHz bandwidth
All Speed Modes
ADC1-3 Interchannel Isolation
ADC3 MUX Interchannel Isolation
DC Accuracy
-
-
90
85
-
-
-
-
90
85
-
-
dB
dB
Interchannel Gain Mismatch
Gain Drift
-
-
0.1
-
-
-
-
0.1
-
-
dB
±100
±100
ppm/°C
Analog Input
Full-scale Input Voltage
Differential Input Impedance (Note 6)
1.04*VA 1.12*VA 1.20*VA 0.52*VA 0.56*VA 0.60*VA
Vpp
kΩ
kΩ
dB
18
-
-
-
-
-
-
-
18
-
-
-
-
-
-
-
Single-Ended Input Impedance (Note 7)
Common Mode Rejection Ratio (CMRR)
-
82
Notes: 5. Referred to the typical full-scale voltage.
6. Measured between AINx+ and AINx-.
7. Measured between AINxx and AGND.
14
DS646PP2
CIRRUS [ CIRRUS LOGIC ]
