STA381BWSTR STMicroelectronics, STA381BWSTR Datasheet - Page 77
STA381BWSTR
Manufacturer Part Number
STA381BWSTR
Description
Audio DSPs Sound Terminal 2.1 High EFF Dig Audio
Manufacturer
STMicroelectronics
Datasheet
1.STA381BWSTR.pdf
(171 pages)
Specifications of STA381BWSTR
Product Category
Audio DSPs
Rohs
yes
Operating Supply Voltage
4.5 V to 25.5 V
Operating Temperature Range
0 C to + 150 C
Mounting Style
SMD/SMT
Package / Case
VQFN-48
Snr
100 dB
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STA381BWS
6.23.5
6.23.6
Dynamic range compression mode
Limiter 1 extended attack threshold (addr 0x43)
The extended attack threshold value is determined as follows:
To enable this feature, the EATHEN1 bit must be set to 1.
Limiter 1 extended release threshold (addr 0x44)
The extended release threshold value is determined as follows:
To enable this feature, the ERTHEN1 bit must be set to 1.
Table 71.
LxAT[3:0]
ERTHEN1
EATHEN1
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
D7
D7
attack threshold = -12 + EATH1 / 4
release threshold = -12 + ERTH1 / 4
0
0
DRC (dB relative to volume)
Limiter attack threshold
as a function of LxAT
bits (DRC mode)
ERTH1[6]
EATH1[6]
D6
D6
0
0
-31
-29
-27
-25
-23
-21
-19
-17
-16
-15
-14
-13
-12
-10
ERTH1[5]
EATH1[5]
-7
-4
D5
D5
1
1
Doc ID 018937 Rev 6
ERTH1[4]
EATH1[4]
D4
D4
1
1
ERTH1[3]
EATH1[3]
Table 72.
D3
D3
LxRT[3:0]
0
0
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Register description: New Map
ERTH1[2]
EATH1[2]
D2
D2
0
0
DRC (dB relative to volume +
Limiter release threshold
as a function of LxRT bits
(DRC mode)
ERTH1[1]
EATH1[1]
D1
D1
-38 dB
-36 dB
-33 dB
-31 dB
-30 dB
-28 dB
-26 dB
-24 dB
-22 dB
-20 dB
-18 dB
-15 dB
-12 dB
LxAT)
0
0
-9 dB
-6 dB
-∞
ERTH1[0]
EATH1[0]
D0
D0
0
0
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