STA381BWSTR STMicroelectronics, STA381BWSTR Datasheet - Page 77

• Manufacturer Part Number: STA381BWSTR
• Description: Audio DSPs Sound Terminal 2.1 High EFF Dig Audio
• Manufacturer: STMicroelectronics

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

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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