Cirrus-logic CS4351 Manuel d'utilisateur télécharger pdf (Page 17)

DS566F1 17

CS4351

least 32 cycles per LRCK period in format 2, 48 cycles in format 3, 40 cycles in format 4, and 36 cycles

in format 5.

4.4 De-Emphasis Control

The device includes on-chip digital de-emphasis. Figure 8 shows the de-emphasis curve for F

equal to 44.1

kHz. The frequency response of the de-emphasis curve will scale proportionally with changes in sample

rate, Fs.

Note: De-emphasis is only available in Single-Speed Mode.

LRCK

SCLK

Left Channel

Right Channel

SDIN +3 +2 +1+5 +4

MSB

-1 -2 -3 -4 -5

+3 +2 +1+5 +4

-1 -2 -3 -4

LSB

MSB

LSB

Figure 5. Left-Justified up to 24-Bit Data

LRCK

SCLK

Left Channel

Right Channel

SDIN +3 +2 +1+5 +4

MSB

-1 -2 -3 -4 -5

+3 +2 +1+5 +4

-1 -2 -3 -4

MSB

LSB

Figure 6. I²S, up to 24-Bit Data

LRCK

SCLK

Left Channel

SDIN

-6 -5 -4 -3 -2 -1-7

+1 +2 +3 +4

MSB

Right Channel

LSBMSB

+1 +2 +3 +4

LSB

-6 -5 -4 -3 -2 -1-7

MSB

Figure 7. Right-Justified Data

Gain

-10dB

0dB

Frequency

T2 = 15 µs

T1=50 µs

F1 F2

3.183 kHz 10.61 kHz

Figure 8. De-Emphasis Curve

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 36 37

Commentaires sur ces manuels

Pas de commentaire

Cirrus-logic CS4351 Manuel d'utilisateur Page 17

Commentaires sur ces manuels

Produits connexes et manuels pour Matériel Cirrus-logic CS4351