STA326 STMicroelectronics, STA326 Datasheet - Page 28

• 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
6.5
28/57
Configuration register E (addr 0x04)
Table 33.
By enabling MPC and setting MPCV = 1, the max power correction becomes variable. By
adjusting the MPCC registers (address 0x27, 0x28) it becomes possible to adjust the THD
at maximum unclipped power to a lower value for a particular application.
Table 34.
Setting the MPC bit corrects the DDX
THD+N of a full DDX
Table 35.
The STA326 features a DDX
generated in the frequency range of AM radio. This mode is intended for use when DDX
operating in a device with an active AM tuner. The SNR of the DDX
to approximately 83 dB in this mode, which is still greater than the SNR of AM radio.
Table 36.
0
1
3
4
Bit
Bit
Bit
Bit
SVE
D7
1
RW
RW
RW
RW
R/W
R/W
R/W
R/W
Max power correction variable
Max power correction
AM mode enable
PWM speed mode
ZCE
D6
1
0
1
0
0
RST
RST
RST
RST
®
Reserved
MPCV
MPC
system at maximum power output and slightly below.
AME
PWMS
D5
0
Name
Name
Name
Name
®
Doc ID 11531 Rev 3
processing mode that minimizes the amount of noise
PWMS
®
D4
0
power device at high power. This mode lowers the
Max power correction variable:
0: use standard MPC coefficient
1: use MPCC bits for MPC coefficient
Max power correction:
0: MPC disabled
1: MPC enabled
AM mode enable:
0: normal DDX
1: AM reduction mode DDX
PWM output speed selection:
0: normal speed (384 kHz) all channels
1: odd speed (341.3 kHz) all channels
AME
D3
0
®
operation.
Reserved
Description
Description
Description
Description
D2
0
®
operation.
®
processing is reduced
MPC
D1
1
MPCV
STA326
D0
0
®
is