CS4353 Cirrus Logic, CS4353 Datasheet - Page 16

• Manufacturer Part Number: CS4353
• Description: 3.3 V Stereo Audio DAC
• Manufacturer: Cirrus Logic

16
4.4
L R C K
S C L K
S D IN
L R C K
S C L K
S D IN
Digital Interface Format
The device will accept audio samples in either I²S or Left-Justified digital interface formats, as illustrated in
Table
The desired format is selected via the I²S/LJ pin. For an illustration of the required relationship between the
LRCK, SCLK and SDIN, see
SCLK must have at least 32 cycles per LRCK period in the Left-Justified format.
For more information about serial audio formats, refer to Cirrus Logic Application Note AN282: The 2-Chan-
nel Serial Audio Interface: A Tutorial, available at http://www.cirrus.com.
M SB
M S B
7.
-1 -2 -3 -4 -5
-1 -2 -3 -4 -5
+5 +4
L e ft C h a n n e l
+5 +4
L e ft C h a n n e l
I²S/LJ
0
1
+3 +2 +1
+3 +2 +1
Figure 6. Left-Justified up to 24-Bit Data
Figures
I²S, up to 24-bit Data
Left-Justified, up to 24-bit Data
Table 7. Digital Interface Format
LSB
Figure 5. I²S, up to 24-Bit Data
LSB
5-6. For all formats, SDIN is valid on the rising edge of SCLK. Also,
Description
M SB
M SB
-1 -2 -3 -4
-1 -2 -3 -4
Figure
5
6
+5 +4
+5 +4
R ig h t C h a n n e l
R ig h t C h a n n e l
+3 +2 +1
+3 +2 +1
LS B
LSB
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CS4353
DS803PP1