STA381BWSTR STMicroelectronics, STA381BWSTR Datasheet - Page 140

• 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

Register description: Sound Terminal compatibility
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default, all post-scale factors are set to 0x7FFFFF. When line output is being used,
channel-3 post-scale will affect both channels 3 and 4.
Table 152. RAM block for biquads, mixing, scaling and bass management
Index (decimal)
19
20
21
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
…
…
0
1
2
3
4
5
Index (hex)
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
0x3A
0x3B
0x3C
0x3D
0x3E
0x3F
0x00
0x01
0x02
0x03
0x04
0x05
0x13
0x14
0x15
0x27
0x28
0x29
0x30
0x31
0x32
0x33
0x34
0x35
0x36
0x37
0x38
0x39
…
…
Doc ID 018937 Rev 6
High-pass 1
Low-pass 2
Channel 1/2 - Biquad 5
Channel 1 - Post-Scale
Channel 2 - Post-Scale
Channel 3 - Post-Scale
Channel 1 - Pre-Scale
Channel 2 - Pre-Scale
Channel 1 - Biquad 1
Channel 1 - Biquad 2
Channel 1 - Biquad 4
Channel 2 - Biquad 1
Channel 2 - Biquad 4
Channel 3 - Biquad
Channel 1 - Mix 1
Channel 1 - Mix 2
Channel 2 - Mix 1
Channel 2 - Mix 2
Channel 3 - Mix 1
Channel 3 - Mix 2
for XO = 000
for XO = 000
Description
for XO≠000
for XO≠000
Reserved
UNUSED
UNUSED
…
…
nd
st
order filter
order filter
C1H10(b1/2)
C1H12(a1/2)
C1H14(b0/2)
C12H0(b1/2)
C12H2(a1/2)
C12H4(b0/2)
Coefficient
C3H0(b1/2)
C3H2(a1/2)
C3H4(b0/2)
C1H11(b2)
C1H13(a2)
C12H1(b2)
C12H3(a2)
C3H1(b2)
C3H3(a2)
Reserved
C1PreS
C2PreS
C1PstS
C2PstS
C3PstS
C1MX1
C1MX2
C2MX1
C2MX2
C3MX1
C3MX2
C1H20
C1H44
C2H10
C2H11
C2H44
…
…
STA381BWS
0x5A9DF7
0x7FFFFF
0x7FFFFF
0x7FFFFF
0x7FFFFF
0x7FFFFF
0x7FFFFF
0x7FFFFF
0x000000
0x000000
0x000000
0x000000
0x400000
0x000000
0x400000
0x000000
0x000000
0x400000
0x000000
0x000000
0x000000
0x000000
0x400000
0x000000
0x000000
0x000000
0x000000
0x400000
0x000000
0x000000
0x400000
0x400000
Default
…
…