CS4228A

5

Notes: 4. Referenced to typical full-scale differential input voltage (2 Vrms). Tested at -1 dBFS

5. Filter characteristics scale with output sample rate.

6. The analog modulator samples the input at 128 times Fs. For example, to obtain an output sample rate

of 48 kHz the input must be sampled at 6.144 MHz. There is no rejection of input signals which are

multiples of the sampling frequency (n × 6.144 MHz ±20.0 kHz where n = 0,1,2,3...).

7. High Pass Filter characteristics are specified for Fs=44.1 kHz.

Base Rate Mode

High Rate Mode

Parameter

Symbol

Min

Typ

Max

Min

Typ

Max

Units

Analog Input Characteristics - Minimum gain setting (0 dB) Differential Input; unless otherwise specified.

Dynamic Range, -60 dBFS input

(A weighted)

(unweighted)

91

97

94

-

-

91

97

94

-

-

dB

dB

Total Harmonic Distortion + Noise

(Note 4) THD+N

-

-88

-83

-

-88

-83

dB

Interchannel Isolation

-

100

-

-

100

-

dB

Interchannel Gain Mismatch

-

0.1

-

-

0.1

-

dB

Offset Error (with high pass filter)

-

-

0

-

-

0

LSB

Full Scale Input Voltage (Differential):

5.24

5.66

6.09

5.24

5.66

6.09

Vp-p

Gain Drift

-

100

-

-

100

-

ppm/°C

Input Resistance

10

-

-

10

-

-

k

Ω

Input Capacitance

-

-

15

-

-

15

pF

A/D Decimation Filter Characteristics

Passband

(Note 5)

0.022

-

21.77 0.022

-

43.54

kHz

Passband Ripple

-

-

0.01

-

-

0.05

dB

Stopband

(Note 5)

30.0

-

6114

72.41

-

6071

kHz

Stopband Attenuation

(Note 6)

80

-

-

45

-

-

dB

Group Delay

-

17/Fs

-

-

17/Fs

-

s

Group Delay Variation vs. Frequency

--

0

-

-

0

µs

High Pass Filter Characteristics

Frequency Response:

-3 dB

(Note 7)

-0.13 dB

-

-

3.4

20

-

-

-

-

3.4

20

-

-

Hz

Hz

Phase Deviation

@ 20 Hz (Note 7)

-

10

-

-

10

-

Degree

Passband Ripple

-

-

0

-

-

0

dB