STA326 STMicroelectronics, STA326 Datasheet - Page 3

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STA326

Manufacturer Part Number
STA326
Description
DIG AUDIO SYSTEM, 2-CH, 36POWERSSOP
Manufacturer
STMicroelectronics
Datasheet

Specifications of STA326

Svhc
No SVHC (15-Dec-2010)
No. Of Pins
36
Operating Temperature Range
-20°C To +85°C
Supply Voltage Max
36V
Supply Voltage Min
10V
Termination T
RoHS Compliant
Package / Case
PowerSO
Interface
I2C
Interface Type
I2C
Rohs Compliant
Yes

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STA326
7
6.8
6.9
6.10
6.11
User programmable processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.1
7.2
7.3
7.4
7.5
7.6
6.7.2
6.7.3
Automode registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.8.1
6.8.2
6.8.3
Channel configuration registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.9.1
6.9.2
6.9.3
Tone control (addr 0x11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Dynamics control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.11.1
6.11.2
6.11.3
6.11.4
6.11.5
6.11.6
6.11.7
EQ - biquad equation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Prescale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Postscale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Mix/bass management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Calculating 24-bit signed fractional numbers from a dB value . . . . . . . . . 46
User defined coefficient RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7.6.1
7.6.2
7.6.3
7.6.4
7.6.5
7.6.6
7.6.7
7.6.8
7.6.9
Channel controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Volume description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Automodes EQ, volume, GC (addr 0x0B) . . . . . . . . . . . . . . . . . . . . . . . 34
Automode AM/prescale/bass management scale (addr 0x0C) . . . . . . . 35
Preset EQ settings (addr 0x0D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Channel 1 configuration (addr 0x0E) . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Channel 2 configuration (addr 0x0F) . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Channel 3 configuration (addr 0x10) . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Limiter 1 attack/release threshold (addr 0x12) . . . . . . . . . . . . . . . . . . . . 40
Limiter 1 attack/release threshold (addr 0x13) . . . . . . . . . . . . . . . . . . . . 40
Limiter 2 attack/release rate (addr 0x14) . . . . . . . . . . . . . . . . . . . . . . . . 40
Limiter 2 attack/release threshold (addr 0x15) . . . . . . . . . . . . . . . . . . . . 40
Dynamics control description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Anti-clipping mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Dynamic range compression mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Coefficient address register 1 (addr 0x16) . . . . . . . . . . . . . . . . . . . . . . . 46
Coefficient b1data register bits 23:16 (addr 0x17) . . . . . . . . . . . . . . . . . 46
Coefficient b1data register bits 15:8 (addr 0x18) . . . . . . . . . . . . . . . . . . 46
Coefficient b1data register bits 7:0 (addr 0x19) . . . . . . . . . . . . . . . . . . . 46
Coefficient b2 data register bits 23:16 (addr 0x1A) . . . . . . . . . . . . . . . . 46
Coefficient b2 data register bits 15:8 (addr 0x1B) . . . . . . . . . . . . . . . . . 47
Coefficient b2 data register bits 7:0 (addr 0x1C) . . . . . . . . . . . . . . . . . . 47
Coefficient a1 data register bits 23:16 (addr 0x1D) . . . . . . . . . . . . . . . . 47
Coefficient a1 data register bits 15:8 (addr 0x1E) . . . . . . . . . . . . . . . . . 47
Doc ID 11531 Rev 3
Contents
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