STA326 STMicroelectronics, STA326 Datasheet - Page 22

• Manufacturer Part Number: STA326
• Description: DIG AUDIO SYSTEM, 2-CH, 36POWERSSOP
• Manufacturer: STMicroelectronics

Specifications of STA326

• Svhc: No SVHC (15-Dec-2010)
• No. Of Pins: 36
• Operating Temperature Range: -20°C To +85°C
• Supply Voltage Max: 36V
• Supply Voltage Min: 10V
• Termination T: RoHS Compliant
• Package / Case: PowerSO
• Interface: I2C
• Interface Type: I2C
• Rohs Compliant: Yes

Register description
6.2
22/57
Configuration register B (addr 0x01)
This register configures the serial data interface
Table 17.
The STA326 serial audio input was designed to interface with standard digital audio
components and to accept a number of serial data formats. The STA326 always acts as a
slave when receiving audio input from standard digital audio components. Serial data for two
channels is provided using 3 input pins: left/right clock LRCKI (pin 31), serial clock BICKI
(pin 32), and serial data SDI (pin 30).
SAI[3:0] and SAIFB are used to specify the serial data format. The default format is I
MSB-first. Available formats are shown below in
Figure 14. General serial input and output formats
Table 18
BICKI = 32 * fs, 48 * fs and 64 * fs, where the sampling rate fs = 32, 44.1, 48, 88.2, 96,
176.4 or 192 kHz.
3:0
4
Bit
C2IM
D7
1
RW
RW
R/W
lists the serial audio input formats supported by STA326 when
I
Left Justified
Right Justified
LRCLK
2
SCLK
SDATA
S
LRCLK
SCLK
SDATA
LRCLK
SCLK
SDATA
Serial audio input interface format
0000
0
RST
C1IM
D6
0
MSB
SAI[3:0]
SAIFB
Name
MSB
MSB
DSCKE
D5
Left
0
Left
Left
Doc ID 11531 Rev 3
Serial audio input interface format: determines the interface
format of the input serial digital audio interface (see below).
Data format:
0: MSB first
LSB
LSB
LSB
SAIFB
D4
0
MSB
MSB
Figure 14
MSB
Right
SAI3
D3
Right
Right
0
Description
LSB
LSB
and the tables that follow.
LSB
SAI2
1: LSB first
D2
0
MSB
MSB
MSB
SAI1
D1
0
STA326
2
SAI0
D0
S,
0