STA333BWQS
Register description
6.5.3
6.5.4
6.5.5
6.5.6
6.5.7
Noise-shaper bandwidth selection
Table 38. Noise-shaper bandwidth selection
Bit R/W RST
Name
2
R/W
0
NSBW
1: third-order NS
0: fourth-order NS
Description
AM mode enable
Table 39. AM mode enable
Bit R/W RST
Name
3 R/W 0
AME
Description
0: normal DDX operation
1: AM reduction mode DDX operation
STA333BWQS 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
approximately 83 dB in this mode, which is still greater than the SNR of AM radio.
PWM speed mode
Table 40. PWM speed mode
Bit R/W RST
Name
4 R/W 0
PWMS
Description
0: normal speed (384 kHz) all channels
1: odd speed (341.3 kHz) all channels
Distortion compensation variable enable
Table 41. Distortion compensation variable enable
Bit R/W RST
Name
Description
5 R/W 0
DCCV
0: uses preset DC coefficient
1: uses DCC coefficient
Zero-crossing volume enable
Table 42. Zero-crossing volume enable
Bit R/W RST
Name
Description
6 R/W 1
ZCE
1: volume adjustments only occur at digital
zero-crossings
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.
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