CS42L56 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
CS42L56 Datasheet PDF : 92 Pages
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CS42L56
ANALOG INPUT CHARACTERISTICS (CONTINUED)
Test Conditions (unless otherwise specified): Connections to the CS42L56 are shown in the “Typical Connection Diagrams” on
page 11; Input test signal is a 1 kHz sine wave through the passive input filter, PGA = 0 dB; All Supplies = VA;
GND = AGND = 0 V; TA = +25C; Measurement bandwidth is 20 Hz to 20 kHz; Sample Frequency = 48 kHz. Measurement sig-
nal path is AINxx to SDOUT.
Dynamic Range
A-weighted 89
95
-
unweighted 86
92
-
Total Harmonic Distortion + Noise
-1 dBFS -
-20 dBFS -
-60 dBFS -
-85
-79
-72
-
-32
-26
Analog In to PGA to ADC, PREAMPx[1:0]=00 (0 dB Gain + PGA Setting)
Dynamic Range
PGA Setting: 0 dB
A-weighted 88
94
-
unweighted 85
91
-
PGA Setting: +12 dB
A-weighted 81
87
-
unweighted 78
84
-
Total Harmonic Distortion + Noise
PGA Setting: 0 dB
-1 dBFS -
-60 dBFS -
-87
-81
-31
-25
PGA Setting: +12 dB
-1 dBFS -
-83
-77
Common Mode Rejection
(Note 5) -
66
-
Analog In to PGA to ADC, PREAMPx[1:0]=01 (+10 dB Gain + PGA Setting)
Dynamic Range
PGA Setting: 0 dB
A-weighted -
91
-
unweighted -
88
-
PGA Setting: +12 dB
A-weighted -
81
-
unweighted -
78
-
Total Harmonic Distortion + Noise
PGA Setting: 0 dB
-1 dBFS -
-77
-
PGA Setting: +12 dB
-1 dBFS -
-64
-
Common Mode Rejection
(Note 5) -
66
-
Analog In to PGA to ADC, PREAMPx[1:0]=10 (+20 dB Gain + PGA Setting)
Dynamic Range
PGA Setting: 0 dB
A-weighted -
85
-
unweighted -
82
-
PGA Setting: +12 dB
A-weighted -
73
-
unweighted -
70
-
Total Harmonic Distortion + Noise
PGA Setting: 0 dB
-1 dBFS -
-71
-
PGA Setting: +12 dB
-1 dBFS -
-63
-
Common Mode Rejection
(Note 5) -
58
-
DC Accuracy
Interchannel Gain Mismatch
-
0.2
-
Gain Drift
-
±100
-
Offset Error
(Note 6) -
352
-
Input
Interchannel Isolation (1 kHz)
(Note 7) -
90
-
HP Amp to Analog Input Isolation
Full-scale Input Voltage
RL = 3 k
-
90
-
RL = 16
-
83
-
ADC 0.76•VA 0.80•VA 0.84•VA
PGA (-1.5 dB)
0.95•VA
PGA (0 dB) 0.78•VA 0.82•VA 0.86•VA
PGA (+12 dB)
0.198•VA
86
83
-
-
-
85
82
78
75
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.76•VA
0.78•VA
92
89
-85
-69
-29
91
88
84
81
-85
-28
-81
66
88
86
78
75
-77
-64
66
82
79
70
67
-71
-63
58
0.2
±100
352
90
90
83
0.80•VA
0.95•VA
0.82•VA
0.198•VA
-
-
-79
-
-23
-
-
-
-
-79
-22
-75
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.84•VA
0.86•VA
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ppm/°C
LSB
dB
dB
dB
Vpp
Vpp
Vpp
DS851F2
15
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