Register description
STA335BW
5.5.4
AM mode enable
Bit
R/W
RST
Name
Description
0 - Normal DDX operation.
1 - AM reduction mode DDX operation
3
R/W
0
AME
STA335BW features a DDX processing mode that minimizes the amount of noise generated
in frequency range of AM radio. This mode is intended for use when DDX is operating in a
device with an AM tuner active. The SNR of the DDX processing is reduced to ~83 dB in this
mode, which is still greater than the SNR of AM radio.
5.5.5
5.5.6
5.5.7
PWM speed mode
Bit
R/W
RST
Name
Description
0 - Normal speed (384 kHz) all channels
1 - Odd speed (341.3 kHz) all channels
4
R/W
0
PWMS
Distortion compensation variable enable
Bit
R/W
RST
Name
Description
0 - Uses preset DC coefficient
1 - Uses DCC coefficient
5
R/W
0
DCCV
Zero-crossing volume enable
Bit
R/W
RST
Name
Description
1 - Volume adjustments only occur at digital
zero-crossings
6
R/W
1
ZCE
0 - Volume adjustments occur immediately
The ZCE bit enables zero-crossing volume adjustments. When volume is adjusted on digital
zero-crossings no clicks are audible.
5.5.8
Soft volume update enable
Bit
R/W
RST
Name
Description
1 – Volume adjustments ramp according to SVR settings
0 – Volume adjustments occur immediately
7
R/W
1
SVE
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STMICROELECTRONICS [ ST ]
