STA323W ST Microelectronics, STA323W Datasheet - Page 20

• Manufacturer Part Number: STA323W
• Description: 2.1 High Efficiency Digital Audio System
• Manufacturer: ST Microelectronics

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STA323W
7.6.5 Zero-Crossing Volume Enable
The ZCE bit enables zero-crossing volume adjustments. When volume is adjusted on digital zero-cross-
ings no clicks will be audible.
7.6.6 Soft Volume Update Enable
The STA323W includes a soft volume algorithm that will step through the intermediate volume values at
a predetermined rate when a volume change occurs. By setting SVE=0 this can be bypassed and volume
changes will jump from old to new value directly. This feature is only available if individual channel volume
bypass bit is set to ‘0’.
7.7 Configuration Register F (Address 05h)
7.7.1 Output Configuration Selection
Table 15. Output Configuration Selections
7.7.2 nvalid Input Detect Mute Enable
Setting the IDE bit enables this function, which looks at the input I
cally mute all outputs if the signals are perceived as invalid.
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1…0
BIT
BIT
BIT
BIT
EAPD
6
7
2
4
OCFG (1...0)
D7
0
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00
01
10
11
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
PWDN
D6
1
RST
RST
RST
RST
00
2 Channel (Full-Bridge) Power, 1 Channel DDX:
1A/1B ◊ 1A/1B
2A/2B ◊ 2A/2B
2(Half-Bridge).1(Full-Bridge) On-Board Power:
1A ◊ 1A
2A ◊ 1B
3A/3B ◊ 2A/2B Binary
Reserved
1 Channel Mono-Parallel:
3A ◊ 1A/1B
3B ◊ 2A/2B
1
1
1
ECLE
NAME
NAME
NAME
NAME
OCFG
(1…0)
ZCE
SVE
D5
IDE
0
Binary
Binary
Zero-Crossing Volume Enable:
1 – Volume adjustments will only occur at digital zero-crossings
0 – Volume adjustments will occur immediately
Soft Volume Enable:
1 – Volume adjustments will use soft volume
0 – Volume adjustments will occur immediately
Output Configuration Selection
00 – 2-channel (Full-bridge) Power, 1-channel DDX is default
Invalid Input Detect Auto-Mute Enable:
0 – Disabled
1 – Enabled
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RES
D4
1
Output Power Configuration
BCLE
D3
1
2
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
S data and clocking and will automati-
IDE
D2
1
OCFG1
D1
1
OCFG0
D0
0
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