STA321 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STA321

4-channel digital audio system with FFX™ driver

STMicroelectronics 

Digital processing stage

Figure 19. Biquad coefficient selection

RAM

ROM - Effects

Coefficients

Biquads (00-10)

STA321

RAM

ROM - Effects

ROM - Bass

RAM

ROM - Effects

ROM - Trebl.

ROMCHxx_

ROMCHxx & BASS_SELxx

Coefficients

Biquads (11)

ROMCHxx & TREB_SELxx

Coefficients

Biquads (12)

Table 20. EQ control signals

Signal name

Description

effects_en[1]

1: enable deemphasysa filter

bass_sel[5]

1: enable bass tone control

treb_sel[5]

1: enable treble tone control

Channel

Ch0

Ch1

Ch2

Ch3

Ch0

Ch1

Ch2

Ch3

Ch0

Ch1

Ch2

Ch3

Register addr

0x71

0x73

0x73

0x77

0x78

0X79

0X7A

0X7B

0X7C

0X7D

0X7E

0X7F

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Doc ID 15351 Rev 3

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