Cirrus-logic CS5341 Manual do Utilizador descarregar pdf (Página 7)

DS564F2 7

CS5341

Confidential Draft

3/11/08

DIGITAL FILTER CHARACTERISTICS

7. Filter characteristics scale precisely with Fs

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

Parameter Symbol Min Typ Max Unit

Single-Speed Mode

Passband (-0.1 dB) (Note 7) 0 - 0.4895 Fs

Passband Ripple -0.035 - 0.035 dB

Stopband (Note 7) 0.5687 - - Fs

Stopband Attenuation 70 - - dB

Total Group Delay (Fs = Output Sample Rate) t

-12/Fs - s

Double-Speed Mode

Passband (-0.1 dB) (Note 7) 0 - 0.4895 Fs

Passband Ripple -0.025 - 0.025 dB

Stopband (Note 7) 0.5604 - - Fs

Stopband Attenuation 69 - - dB

Total Group Delay (Fs = Output Sample Rate) t

-9/Fs - s

Quad-Speed Mode

Passband (-0.1 dB) (Note 7) 0 - 0.2604 Fs

Passband Ripple -0.025 - 0.025 dB

Stopband (Note 7) 0.5 - - Fs

Stopband Attenuation 60 - - dB

Total Group Delay (Fs = Output Sample Rate) t

-5/Fs - s

High-Pass Filter Characteristics

Frequency Response -3.0 dB

-0.13 dB (Note 8)

-1

Phase Deviation @ 20 Hz (Note 8) -10 -Deg

Passband Ripple -- 0dB

1 2 3 4 5 6 7 8 9 10 11 12 ... 21 22

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Cirrus-logic CS5341 Manual do Utilizador Página 7