STA308A STMicroelectronics, STA308A Datasheet - Page 25

• Manufacturer Part Number: STA308A
• Description: IC AUDIO PROCESSOR DGTL 64-TQFP
• Manufacturer: STMicroelectronics
• Series: DDX™r
• Type: Audio Processorr

Specifications of STA308A

• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Lead Free Status / Rohs Status: Compliant

STA308A
7.2.3
Configuration register C (0x02) - serial output formats
The STA308A features a serial audio output interface that consists of 8 channels. The serial
audio output always acts as a slave to the serial audio input interface and, therefore, all
output clocks are synchronous with the input clocks. The output sample frequency (fs) is
also equivalent to the input sample frequency. In the case of SACD/DSD input, the serial
audio output acts as a master with an output sampling frequency of 176.4 kHz. The output
serial format can be selected independently from the input format and is done via the SAO
and SAOFB bits.
0
1
2
3
4
32 * fs
48 * fs
64 * fs
Bit
Bit
BICKI = BICKO
D7
RW
RW
RW
RW
RW
RW
RW
D6
0
0
0
0
0
RST
RST
0111
1111
1110
0001
1010
1011
1100
1101
0000
0001
0010
0011
0100
0101
SAO0
SAO1
SAO2
SAO3
SAOFB
SAO[3:0]
D5
Name
Name
SAOFB
0
I
Left/right-justified 16-bit data
I
Left-justified data
Right-justified 24-bit data
Right-justified 20-bit data
Right-justified 18-bit data
Right-justified 16-bit data
I
Left-justified data
Right-justified 24-bit data
Right-justified 20-bit data
Right-justified 18-bit data
Right-justified 16-bit data
2
2
2
S data
S data
S data
D4
Serial audio output interface format: determines the
interface format of the output serial digital audio
interface.
Determines MSB or LSB first for all SAO formats:
0: MSB first
1: LSB first
SAO3
0
D3
Interface data format
SAO2
0
Description
Description
D2
SAIO
0
D1
SAO0
0
Registers
D0
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