sta381bw STMicroelectronics, sta381bw Datasheet - Page 154

• Manufacturer Part Number: sta381bw
• Description: Sound Terminal 2.1-channel High-efficiency Digital Audio System
• Manufacturer: STMicroelectronics

Register description: Sound Terminal compatibility
7.25
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The measured level is then reported (for each input channel) on registers 0x51 - 0x52, 0x53
- 0x54 according to the following equation:
Table 172. Zero-detect threshold
Table 173. Zero-detect hysteresis
Headphone/Line out configuration register (address 0x55)
HPLN
D7
0
ZMTH[2:0]
HSEL[1:0]
000
001
010
011
100
101
110
111
00
01
10
11
Reserved
D6
0
Value_in_dB = 20*Log
MUTE
D5
1
Doc ID 018835 Rev 2
Reserved
D4
0
Equivalent input level hysteresis (dB)
10
Equivalent input level (dB)
(Reg_value/(2
CPFEN
D3
0
-102
-108
-114
-114
-78
-84
-90
-96
3
4
5
6
16
CPOK
D2
NA
*0.635))
ABFAULT
NA
D1
STA381BW
DCROK
NA
D0