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Adc analog characteristics - commercial grade, Cs4272 – Cirrus Logic CS4272 User Manual

Page 14

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CS4272

14

DS593F1

ADC ANALOG CHARACTERISTICS - COMMERCIAL GRADE

Measurement Bandwidth is 10 Hz to 20 kHz unless otherwise specified. Input is 1 kHz sine wave.

Notes: 13. Referred to the typical full-scale input voltage.

Notes: 14. Measured between AIN+ and AIN-

Parameter

Symbol

Min

Typ Max

Unit

Single Speed Mode Fs = 48 kHz

Dynamic Range

A-weighted

unweighted

108
105

114

111

-
-

dB
dB

Total Harmonic Distortion + Noise (Note 13)

-1 dB

-20 dB
-60 dB

THD+N

-
-
-

-100

-91
-51

-94

-
-

dB
dB
dB

Double Speed Mode Fs = 96 kHz

Dynamic Range

A-weighted

unweighted

40 kHz bandwidth unweighted

108
105

-

114

111

108

-
-
-

dB
dB
dB

Total Harmonic Distortion + Noise (Note 13)

-1 dB

-20 dB
-60 dB

40 kHz bandwidth -1 dB

THD+N

-
-
-
-

-100

-91
-51
-97

-94

-
-
-

dB
dB
dB
dB

Quad Speed Mode Fs = 192 kHz

Dynamic Range

A-weighted

unweighted

40 kHz bandwidth unweighted

108
105

-

114

111

108

-
-
-

dB
dB
dB

Total Harmonic Distortion + Noise (Note 13)

-1 dB

-20 dB
-60 dB

40 kHz bandwidth -1 dB

THD+N

-
-
-
-

-100

-91
-51
-97

-94

-
-
-

dB
dB
dB
dB

Dynamic Performance for All Modes

Interchannel Isolation

-

110

-

dB

Interchannel Phase Deviation

-

0.0001

-

Degree

DC Accuracy

Interchannel Gain Mismatch

-

0.1

-

dB

Gain Error

-

±

5

%

Gain Drift

-

±

100

-

ppm/°C

Offset Error

HPF enabled

HPF disabled

-
-

0

100

-
-

LSB
LSB

Analog Input Characteristics

Full-scale Input Voltage

1.07xVA

1.13xVA

1.19xVA

Vpp

Input Impedance (Differential)

(Note 14)

37

-

-

k

Common Mode Rejection Ratio

CMRR

-

82

-

dB