CS4362A Datasheet, PDF (22/47 Pages) Cirrus Logic – 114 dB, 192 kHz 6-channel D/A Converter

CS4362A
3.3 Digital Interface Formats
The serial port operates as a slave and supports the I²S, Left-Justified, and Right-Justified digital interface
formats with varying bit depths from 16 to 24 as shown in Figures 7-12. Data is clocked into the DAC on the
rising edge.
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 7. Format 0 - Left-Justified up to 24-bit Data
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 8. 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 9. 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 10. Format 3 - Right-Justified 24-bit Data
76543210
22
DS617PP1