Cirrus-logic CS4350 Manuale Utente Scaricare il pdf (Pagina 18)

18 DS691F2

CS4350

4.3 Digital Interface Format

The device will accept audio samples in 1 of 8 digital interface formats, as shown in Table 12 on page 23

for Stand-Alone Mode and Table 13 on page 28 for Control Port Mode.

The desired serial audio interface format is selected via the DIF[2:0] bits in Control Port Mode (see

Section 8.2.1), or the DIF[2:0] pins in Stand-Alone Mode (see Section 5.1). For illustrations of the required

relationship between LRCK, SCLK and SDIN, see Figures 11-13. For all formats, SDIN is valid on the rising

edge of SCLK.

For more information about serial audio formats, refer to the Cirrus Logic Application Note AN282,

The 2-Channel Serial Audio Interface: A Tutorial, available at www.cirrus.com.

+3 +2 +1+5 +4

MSB

-1 -2 -3 -4 -5

+3 +2 +1+5 +4

-1 -2 -3 -4

LSB

MSB

LSB

Left Channel Right Channel

LRCK

SCLK

SDIN

Figure 11. Left-Justified up to 24-Bit Data

+3 +2 +1+5 +4

MSB

-1 -2 -3 -4 -5

+3 +2 +1+5 +4

-1 -2 -3 -4

MSB

LSB

Left Channel

Right Channel

LRCK

SCLK

SDIN

Figure 12. I²S, up to 24-Bit Data

SDIN

+6 +5 +4 +3 +2 +1+7

-1 -2 -3 -4

-5

LSB

LSBMSB

-1 -2 -3 -4

-5

LSB

+6 +5 +4 +3 +2 +1+7

MSB

Left Channel

Right Channel

LRCK

SCLK

Figure 13. Right-Justified Data

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 37 38

Commenti su questo manuale

Nessun commento

Cirrus-logic CS4350 Manuale Utente Pagina 18

Commenti su questo manuale

Prodotti e manuali riguardandi Hardware Cirrus-logic CS4350