CS4245 查看數據表（PDF） - Cirrus Logic
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CS4245 Datasheet PDF : 57 Pages
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AUXILIARY OUTPUT ANALOG CHARACTERISTICS
(Continued)
CS4245
VA = 3.13 V to 3.46 V
Commercial Grade
Parameter
Symbol Min Typ Max
Dynamic Performance with PGA Output Selected, Line Level Input
Dynamic Range
PGA Setting: -12 dB to +6 dB
A-weighted
unweighted
PGA Setting: +12 dB Gain
A-weighted
unweighted
93
101
-
90
98
-
89
95
-
86
92
-
Total Harmonic Distortion + Noise (Note 19)
PGA Setting: -12 dB to +6 dB
-1 dB
-
-80
-74
-20 dB
-
-78
-
-60 dB THD+N -
-38
-
PGA Setting: +12 dB Gain
-1 dB
-
-80
-74
-20 dB
-
-72
-
-60 dB
-
-32
-
Dynamic Performance with PGA Output Selected, Mic Level Input
Dynamic Range
PGA Setting: -12 dB to 0 dB
A-weighted
unweighted
PGA Setting: +12 dB
A-weighted
unweighted
77
83
-
74
80
-
65
71
-
62
68
-
Total Harmonic Distortion + Noise (Note 19)
PGA Setting: -12 dB to 0 dB
-1 dB
-
-20 dB THD+N -
-60 dB
-
PGA Setting: +12 dB
-1 dB
-
Dynamic Performance with DAC Output Selected
-74
-68
-60
-
-20
-
-68
-
Dynamic Range
18 to 24-Bit
16-Bit
(Notes 18)
A-Weighted
unweighted
A-Weighted
unweighted
95
101
-
92
98
-
88
93
-
85
90
-
Total Harmonic Distortion + Noise (Notes 18, 20)
18 to 24-Bit
0 dB
-
-20 dB
-
-60 dB THD+N -
16-Bit
0 dB
-
-20 dB
-
-60 dB
-
-80
-74
-78
-
-38
-
-80
-74
-70
-
-30
-
Automotive Grade
Min Typ Max
91
101
-
88
98
-
87
95
-
84
92
-
-
-80
-72
-
-78
-
-
-38
-
-
-80
-72
-
-72
-
-
-32
-
75
83
-
72
80
-
63
71
-
60
68
-
-
-74
-66
-
-60
-
-
-20
-
-
-68
-
93
101
-
90
98
-
86
93
-
83
90
-
-
-80
-72
-
-78
-
-
-38
-
-
-80
-72
-
-70
-
-
-30
-
Unit
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
18. One-half LSB of triangular PDF dither added to data.
19. Referred to the typical Line-Level Full-Scale Input Voltage.
18
DS656F2
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