CS4270 Datasheet, PDF (9/48 Pages) Cirrus Logic – 24-Bit, 192 kHz Stereo Audio CODEC

CS4270
DAC ANALOG CHARACTERISTICS (CS4270-CZZ)
(Full-Scale Output Sine Wave, 997 Hz (Note 4), Fs = 48/96/192 kHz; Test load R_L = 3 kΩ, C_L = 10 pF
(see Figure 1). Measurement Bandwidth 10 Hz to 20 kHz, unless otherwise specified.)
VA = 5V
VA = 3.3V
Dynamic Range
Parameter
Min Typ Max Min Typ Max Unit
18 to 24-Bit A-weighted 99
105
-
unweighted 96
102
-
16-Bit
A-weighted 90
96
-
unweighted ₈₇
93
-
97
103
-
dB
94
100
-
dB
90
96
-
dB
87
93
-
dB
Total Harmonic Distortion + Noise
18 to 24-Bit
0 dB -
-95 -89
-
-95 -89 dB
-20 dB -
-82 -76
-
-80 -74 dB
-60 dB -
-42 -36
-
-40 -34 dB
16-Bit
0 dB _-
-93 -87
-
-93 -87 dB
-20 dB _-
-73 -67
-
-73 -67 dB
-60 dB _-
-33 -27
-
-33 -27 dB
DAC ANALOG CHARACTERISTICS (CS4270-DZZ)
(Full-Scale Output Sine Wave, 997 Hz (Note 4), Fs = 48/96/192 kHz; Test load R_L = 3 kΩ, C_L = 10 pF
(see Figure 1). Measurement Bandwidth 10 Hz to 20 kHz, unless otherwise specified.)
VA = 5V
VA = 3.3V
Dynamic Range
Parameter
Min Typ Max Min Typ Max Unit
18 to 24-Bit A-weighted 95
105
-
unweighted 92
102
-
16-Bit
A-weighted 86
96
-
unweighted ₈₃
93
-
93
103
-
dB
90
100
-
dB
86
96
-
dB
83
93
-
dB
Total Harmonic Distortion + Noise
18 to 24-Bit
0 dB ^-
-95 -85
-
-95 -85 dB
-20 dB -
-82 -72
-
-80 -70 dB
-60 dB -
-42 -32
-
-40 -30 dB
16-Bit
0 dB _-
-93 -83
-
-93 -83 dB
-20 dB _-
-73 -63
-
-73 -63 dB
-60 dB _-
-33 -23
-
-33 -23 dB
4. One-half LSB of triangular PDF dither added to data.
DS686A1
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