CDB4397 datasheet(6/36 Pages) CIRRUS

6 / 36 page

CS4397

DS333PP1

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

Passband Ripple

±0.0001

StopBand

.5465

StopBand Attenuation

(Note 5)

102

Group Delay

(Note 6)

tgd

37/Fs

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

Passband Ripple

±0.0008

StopBand

.570

StopBand Attenuation

(Note 5)

Group Delay

tgd

20/Fs

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

+0.015

Passband Ripple

±0.00065

StopBand

0.635

StopBand Attenuation

(Note 5)

Group Delay

tgd

11/Fs

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