CS4222

DS236F1

7

signal is a 997 Hz sine wave; measurement bandwidth is 10 Hz to 20 kHz; VD = VA, Fs=48kHz)

Notes: 2. Referenced to typical fullscale differential input voltage.

3. The filter characteristics have been normalized to the sample rate (Fs) and can be referenced to the

desired sample rate by multiplying the given characteristic by Fs.

4. The analog modulator samples the input at 6.144 MHz for an Fs equal to 48 kHz. There is no rejection

of input signals which are multiples of the sampling frequency (n x 6.144 MHz +/- 21.8 kHz; n = 0, 1, ...).

Parameter

CS4222-KS

CS4222-BS/-DS

Min

Typ

Max

Min

Typ

Max

Unit

Dynamic Range

A-weighted

unweighted

95

92

99

96

-

-

95

92

99

96

-

-

dB

dB

Total Harmonic Distortion + Noise

(Note 2)

-1 dB

-20 dB

-60 dB

-

-

-

-90

-76

-36

-86

-

-

-

-

-

-90

-76

-36

-86

-

-

dB

dB

dB

Interchannel Isolation

(1 kHz)

-

90

-

-

90

-

dB

DC Accuracy

Offset Error

(HPF Enabled)

(HPF Disabled)

-

-

0

20

-

-

-

-

0

20

-

-

Interchannel Gain Mismatch

-

0.1

-

-

0.1

-

dB

Gain Drift

-

±100

-

-

±100

-

ppm/°C

Analog Input

Full Scale Differential Input Voltage

1.82

2.0

2.18

1.82

2.0

2.18

Input Resistance

-

10

-

-

10

-

k

Ω

Input Capacitance

-

15

-

-

15

-

pF

Common Mode Input Voltage

-

2.3

-

-

2.3

-

V

ADC Digital Decimation Filter Characteristics (Note 3)

Parameter

Min

Typ

Max

Unit

Passband

to -0.01 dB corner

0

-

0.4535

Fs

Passband Ripple

-0.01

-

+0.01

dB

StopBand

0.625

-

-

Fs

StopBand Attenuation

(Note 4)

80

-

-

dB

Group Delay

-

15/Fs

-

s

Group Delay Variation

-

-

0

s

HPF Characteristics

Frequency Response

-3 dB

-0.1 dB

-

-

3.7

20

-

-

Hz

Hz

Phase Deviation

@ 20 Hz

-

10

-

Degree

Passband Ripple

-

-

0

dB