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CS4398CZZR

120 dB, 192 kHz Multi-Bit DAC with Volume Control

Cirrus Logic 

CS4398

COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE

The filter characteristics have been normalized to the sample rate (Fs) and can be referenced to the desired sam-

ple rate by multiplying the given characteristic by Fs.)

(See note 9.)

Fast Roll-Off

Parameter

Min

Typ

Max

Unit

Combined Digital and On-Chip Analog Filter Response - Single-Speed Mode - 48 kHz (Note 5)

Passband (Note 6)

to -0.01 dB corner

0

to -3 dB corner

0

-

.454

Fs

-

.499

Fs

Frequency Response 10 Hz to 20 kHz

-0.01

-

+0.01

dB

StopBand

0.547

-

-

Fs

StopBand Attenuation

(Note 7) 102

-

-

dB

Group Delay

-

9.4/Fs

-

s

De-emphasis Error (Note 8)

(Relative to 1 kHz)

Fs = 32 kHz

-

Fs = 44.1 kHz

-

Fs = 48 kHz

-

-

±0.23

dB

-

±0.14

dB

-

±0.09

dB

Combined Digital and On-Chip Analog Filter Response - Double-Speed Mode - 96 kHz (Note 5)

Passband (Note 6)

to -0.01 dB corner

0

to -3 dB corner

0

-

.430

Fs

-

.499

Fs

Frequency Response 10 Hz to 20 kHz

-0.01

-

0.01

dB

StopBand

.583

-

-

Fs

StopBand Attenuation

(Note 7) 80

-

-

dB

Group Delay

-

4.6/Fs

-

s

Combined Digital and On-Chip Analog Filter Response - Quad-Speed Mode - 192 kHz (Note 5)

Passband (Note 6)

to -0.01 dB corner

0

to -3 dB corner

0

-

.105

Fs

-

.490

Fs

Frequency Response 10 Hz to 20 kHz

-0.01

-

0.01

dB

StopBand

.635

-

-

Fs

StopBand Attenuation

(Note 7) 90

-

-

dB

Group Delay

-

4.7/Fs

-

s

4. Slow Roll-off interpolation filter is only available in Control Port mode.

5. Filter response is guaranteed by design.

6. Response is clock-dependent and will scale with Fs.

7. For Single-Speed Mode, the Measurement Bandwidth is from stopband to 3 Fs.

For Double-Speed Mode, the Measurement Bandwidth is from stopband to 3 Fs.

For Quad-Speed Mode, the Measurement Bandwidth is from stopband to 1.34 Fs.

8. De-emphasis is available only in Single-Speed Mode; Only 44.1 kHz De-emphasis is available in Stand-

Alone mode.

9. Amplitude vs. Frequency plots of this data are available in the “Appendix” on page 41.

10

DS568F1

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