CS4350(2006) View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS4350
(Rev.:2006)

192 kHz Stereo DAC with Integrated PLL

Cirrus Logic 

CS4350

4.3 Digital Interface Format

The device will accept audio samples in 1 of 8 digital interface formats, as shown in Table 3 on page 23 for

Stand-Alone Mode and Table 4 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 8-10. 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.

LRCK

SCLK

SDIN

Left Channel

Right Channel

MSB -1 -2 -3 -4 -5

+5 +4 +3 +2 +1 LSB

MSB -1 -2 -3 -4

+5 +4 +3 +2 +1 LSB

Figure 8. Left-Justified up to 24-Bit Data

LRCK

SCLK

SDIN

Left Channel

Right Channel

MSB -1 -2 -3 -4 -5

+5 +4 +3 +2 +1 LSB

MSB -1 -2 -3 -4

+5 +4 +3 +2 +1 LSB

Figure 9. I²S, up to 24-Bit Data

LRCK

SCLK

SDIN LSB

Left Channel

Right Channel

MSB -1 -2 -3 -4 -5

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

MSB -1 -2 -3 -4 -5

Figure 10. Right-Justified Data

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

18

DS691A3

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