STA309A13TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STA309A13TR

Multi-channel digital audio processor with DDX®

STMicroelectronics 

STA309A

Registers

that limiter and the release threshold is set relative to the maximum volume setting plus the

attack threshold.

Figure 7. Basic limiter and volume flow diagram

Gain, volume

Limiter

RMS

Input

Gain

Attenuation

Saturation

Output

Table 71.

00

01

10

Table 72.

0000

0001

0010

0011

0100

0101

0110

0111

1000

1001

1010

1011

1100

1101

1110

1111

Channel limiter mapping

CnLS[1:0]

Attack rate

LnA[3:0]

Channel limiter mapping

Channel has limiting disabled

Channel is mapped to limiter #1

Channel is mapped to limiter #2

Attack rate (dB/ms)

3.1584 (fast)

2.7072

2.2560

1.8048

1.3536

0.9024

0.4512

0.2256

0.1504

0.1123

0.0902

0.0752

0.0645

0.0564

0.0501

0.0451 (slow)

Doc ID 13855 Rev 4

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