STAC9460 Datasheet, PDF (10/21 Pages) List of Unclassifed Manufacturers – Two and Six-Channel, 24-Bit, 192 kHz Audio Codec

PRELIMINARY INFORMATION 8/24/01
STAC9460/62
Two and Six-Channel, 24-Bit, 192 kHz Audio Codec
6. DIGITAL AUDIO INTERFACE
6.1.
I²S Serial Interface
The STAC9460/62 communicates digital audio information through an I²S digital
serial interface. The I²S interface can be configured with the standard I²S format,
left justified, right justified or one line format. Input signals SDI1, SDI2, and SDI3
interface to the Left and Right Front Channels, Left and Right Rear Channels and
the Center and LFE Channels respectively. The SDATA_OUT line outputs data
from the two ADCs.
I2S LINE
SDI1
SDI2
SDI3
Alternate SDI1
SDATA_OUT
ANALOG CHANNEL
FUNCTION
Left & Right Front I²S data interface to DAC_LF & DAC_RF
Left & Right Rear I²S data interface to DAC_LR & DAC_RR
Center & LFE
I²S data interface to DAC_CTR & DAC_LFE
All Channels
Mic & Diff
One line mode for all six channels
I²S data interface from the ADCs
Table 1. Digital Audio Interface Configuration
D_LRCK
D_SCLK
SDIN 1/2/3
SDATA_OUT
Left Channel
Right Channel
M
S
B
-1
-2
-3
-4 -5
L
+5 +4 +3 +2
+1
S
B
M
L
S
B
-1 -2 -3 -4 -5
+5 +4 +3 +2 +1
S
B
Figure 4. I²S Format
D_LRCK
D_SCLK
SDIN 1/2/3
SDATA_OUT
Left Channel
Right Channel
M
S
B
-1
-2
-3
-4 -5
L
+5 +4 +3 +2 +1
S
B
M
S
B
-1 -2 -3 -4 -5
L
+5 +4
+3 +2 +1
S
B
Figure 5. I²S Left Justified Format
D_LRCK
D_SCLK
SDIN 1/2/3
SDATA_OUT
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
Figure 6. I²S Right Justified 16 Bit Format
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2-9460-D1-1-0-0801