CS4385(2004) View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS4385
(Rev.:2004)

114 dB, 192 kHz 8-Channel D/A Converter

Cirrus Logic 

CS4385

3.3 Digital Interface Formats

The serial port operates as a slave and supports the I²S, Left-Justified, Right-Justified, One-Line

Mode (OLM) and TDM digital interface formats with varying bit depths from 16 to 32 as shown in

Figures 9-19. Data is clocked into the DAC on the rising edge. OLM and TDM configurations are

only supported in software mode.

LRCK

SCLK

SDINx

LRCK

SCLK

SDINx

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. Format 0 - Left Justified up to 24-bit Data

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 10. Format 1 - I2S up to 24-bit Data

LRCK

SCLK

SDINx

Left Channel

Right Channel

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

32 clocks

Figure 11. Format 2 - Right Justified 16-bit Data

LRCK

SCLK

SDINx 0

Left Channel

Right Channel

23 22 21 20 19 18

76543210

23 22 21 20 19 18

32 clocks

Figure 12. Format 3 - Right Justified 24-bit Data

76543210

20

DS671A1

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