STA328 STMicroelectronics, STA328 Datasheet - Page 29

• Manufacturer Part Number: STA328
• Description: DIG AUDIO SYSTEM, 2-CH, 36POWERSSOP
• Manufacturer: STMicroelectronics

Specifications of STA328

• Svhc: No SVHC (15-Dec-2010)
• Package / Case: PowerSO
• Interface: I2C
• No. Of Pins: 36
• Operating Temperature Range: -20°C To +125°C
• Supply Voltage Max: 36V
• Supply Voltage Min: 10V
• Termination: RoHS Compliant
• Interface Type: I2C
• Rohs Compliant: Yes

STA328
6.5
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 STA328 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.
Table 37.
0
1
3
4
0
1
Bit
Bit
Bit
Bit
SVE
D7
1
PWMS[1:0]
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
PWM output speed selections
ZCE
D6
1
0
1
0
0
RST
RST
RST
RST
®
Normal speed (384 kHz) all channels
Odd speed (341.3 kHz) all channels
Reserved
MPCV
MPC
system at maximum power output and slightly below.
AME
PWMS
D5
0
Name
Name
Name
Name
®
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 speed selection: normal or odd
PWM output speed
AME
D3
0
®
operation.
Reserved
Description
Description
Description
Description
D2
0
®
operation.
®
processing is reduced
Register description
MPC
D1
1
MPCV
D0
0
29/57
®
is