CS4220 CS4221

4

DS284PP3

1. CHARACTERISTICS AND SPECIFICATIONS

mode, Format 0, unless otherwise specified.)

Notes: 1. Referenced to typical full-scale differential input voltage (2 Vrms).

2. Filter characteristics scale with output sample rate. For output sample rates, Fs, other than 48 kHz, the

0.01 dB passband edge is 0.4535x Fs and the stopband edge is 0.625x Fs.

3. 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 where

n = 0,1,2,3...).

Parameter

Symbol

CS4220/1 - KS

Unit

Min

Typ

Max

Analog Input Characteristics

ADC Resolution

-

-

24

Bits

Total Harmonic Distortion

THD

-

0.003

-

%

Dynamic Range

A-weighted

unweighted

95

92

100

97

-

-

dB

Total Harmonic Distortion + Noise

(Note 1) THD+N

-

-92

-87

dB

Interchannel Isolation

(1 kHz)

-

90

-

dB

Interchannel Gain Mismatch

-

-

0.1

dB

Offset Error

with High Pass Filter

-

-

0

LSB

Full Scale Input Voltage (Differential)

1.9

2.0

2.1

Vrms

Gain Drift

-

100

-

ppm/°C

Input Resistance

10

-

-

k

Ω

Input Capacitance

-

-

15

pF

Common Mode Input Voltage

-

2.3

-

V

A/D Decimation Filter Characteristics

Passband

(Note 2)

0

-

21.8

kHz

Passband Ripple

-

-

±0.01

dB

Stopband

(Note 2)

30

-

6114

kHz

Stopband Attenuation

(Note 3)

80

-

-

dB

Group Delay (Fs = Output Sample Rate)

(Note 4)

-15/Fs

-

s

Group Delay Variation vs. Frequency

∆t

gd

--

0

µs

High Pass Filter Characteristics

Frequency Response

-3 dB (Note 2)

-0.1 dB

-

-

3.7

20

-

-

Hz

Phase Deviation

@ 20 Hz

(Note 2)

-

10

-

Degree

Passband Ripple

-

-

0

dB