STA339BWS datasheet(53/79 Pages) STMICROELECTRONICS

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STA339BWS

release threshold, the gain is again increased at a rate dependent upon the Release Rate

occurs if the limiter has already reduced the gain. The release threshold value can be used

to set what is effectively a minimum dynamic range, this is helpful as over limiting can

reduce the dynamic range to virtually zero and cause program material to sound “lifeless”.

In AC mode, the attack and release thresholds are set relative to full-scale. In DRC mode,

the attack threshold is set relative to the maximum volume setting of the channels mapped

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

the attack threshold.

Table 66. Limiter attack rate vs LxA bits

LxA[3:0]

Attack rate dB/ms

0000

3.1584

Fast

Slow

0001

2.7072

0010

2.2560

0011

1.8048

0100

1.3536

0101

0.9024

0110

0.4512

0111

0.2256

1000

0.1504

1001

0.1123

1010

0.0902

1011

0.0752

1100

0.0645

1101

0.0564

1110

0.0501

1111

0.0451

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