CS42428 datasheet(52/67 Pages) CIRRUS

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CS42428

Notes: 3. Typical performance numbers are taken at 25° C. Min/Max performance numbers are guaranteed across

the specified temperature range, TA.

4. Referred to the typical full-scale voltage.

5. Measured between AIN+ and AIN-

A/D DIGITAL FILTER CHARACTERISTICS

Notes: 6. The filter frequency response scales precisely with Fs.

7. Response shown is for Fs equal to 48 kHz. Filter characteristics scale with Fs.

FILT+ Nominal Voltage

Output Impedance

Maximum allowable DC current

5.0

0.01

5.0

0.01

Ω

Parameter

Symbol

Min

Typ

Max

Unit

Single Speed Mode (2 to 50 kHz sample rates)

Passband

(-0.1 dB)

(Note 6)

0.47

Passband Ripple

±0.035

Stopband

(Note 6)

0.58

Stopband Attenuation

-95

Total Group Delay (Fs = Output Sample Rate)

tgd

-12/Fs

Group Delay Variation vs. Frequency

∆tgd

0.0

µs

Double Speed Mode (50 to 100 kHz sample rates)

Passband

(-0.1 dB)

(Note 6)

0.45

Passband Ripple

±0.035

Stopband

(Note 6)

0.68

Stopband Attenuation

-92

Total Group Delay (Fs = Output Sample Rate)

tgd

-9/Fs

Group Delay Variation vs. Frequency

∆tgd

0.0

µs

Quad Speed Mode (100 to 192 kHz sample rates)

Passband

(-0.1 dB)

(Note 6)

0.24

Passband Ripple

±0.035

Stopband

(Note 6)

0.78

Stopband Attenuation

-97

Total Group Delay (Fs = Output Sample Rate)

tgd

-5/Fs

Group Delay Variation vs. Frequency

∆tgd

0.0

µs

High Pass Filter Characteristics

Frequency Response

-3.0 dB

-0.13 dB

(Note 7)

-1

Phase Deviation

@ 20 Hz

(Note 7)

Deg

Passband Ripple

Filter Setting Time

105/Fs

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