Cirrus-logic CS4397 User Manual download pdf (Page 6)

CS4397

6 DS333F1

ANALOG CHARACTERISTICS (Continued)

Notes: 4. Response is clock dependent and will scale with Fs. Note that the response plots (

Figures 9-28

) have

been normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs.

5. For Single-Speed Mode, the Measurement Bandwidth is 0.5465 Fs to 1.4 Fs.

For Double-Speed Mode, the Measurement Bandwidth is 0.570 Fs to 1.4 Fs.

For Quad-Speed Mode, the Measurement Bandwidth is 0.635 Fs to 1.3 Fs.

6. Group Delay for Fs=48 kHz 37/48 kHz=770 µs

7. De-emphasis is available only in Single Speed Mode.

Parameter Symbol Min Typ Max Unit

Combined Digital and On-chip Analog Filter Response - Single Speed Mode

Passband (Note 4)

to -0.1 dB corner

to -3 dB corner

0.470

0.492

Frequency Response 10 Hz to 20 kHz -.020 - +0.015 dB

Passband Ripple - - ±0.0001 dB

StopBand .5465 - - Fs

StopBand Attenuation (Note 5) 102 - - dB

Group Delay (Note 6) tgd - 37/Fs - s

De-emphasis Error (Note 7)

Fs = 32 kHz

(Relative to 1 kHz) Fs = 44.1 kHz

Fs = 48 kHz

±0.10

±0.13

Combined Digital and On-chip Analog Filter Response - Double Speed Mode

Passband (Note 4)

to -0.1 dB corner

to -3 dB corner

0.448

0.486

Frequency Response 10 Hz to 20 kHz -0.017 - 0.035 dB

Passband Ripple - - ±0.0008 dB

StopBand .570 - - Fs

StopBand Attenuation (Note 5) 82 - - dB

Group Delay tgd - 20/Fs - s

Combined Digital and On-chip Analog Filter Response - Quad-Speed Mode

Passband (Note 4)

to -0.1 dB corner

to -3 dB corner

0.385

0.472

Frequency Response 10 Hz to 20 kHz 0 - +0.015 dB

Passband Ripple - - ±0.00065 dB

StopBand 0.635 - - Fs

StopBand Attenuation (Note 5) 83 - - dB

Group Delay tgd - 11/Fs - s

1 2 3 4 5 6 7 8 9 10 11 ... 33 34

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Cirrus-logic CS4397 User Manual Page 6

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