STA369BWS datasheet(33/89 Pages) STMICROELECTRONICS

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STA369BWS

Doc ID 16861 Rev 4

33/89

De-emphasis

DSP bypass

Setting the DSPB bit bypasses the EQ function of the STA369BWS.

Postscale link

Postscale functionality can be used for power-supply error correction. For multi-channel

applications running off the same power-supply, the postscale values can be linked to the

value of channel 1 for ease of use and update the values faster.

Biquad coefficient link

For ease of use, all channels can use the biquad coefficients loaded into the Channel-1

coefficient RAM space by setting the BQL bit to 1. Therefore, any EQ updates only have to

be performed once.

Dynamic range compression/anti-clipping bit

Table 27.

De-emphasis

Bit

R/W

RST

Name

Description

1R/W

DEMP

0: no de-emphasis

1: enable de-emphasis on all channels

Table 28.

DSP bypass

Bit

R/W

RST

Name

Description

R/W

DSPB

0: normal operation

1: bypass of biquad and bass/treble functions

Table 29.

Postscale link

Bit

R/W

RST

Name

Description

3R/W

PSL

0: each channel uses individual postscale value

1: each channel uses channel 1 postscale value

Table 30.

Biquad coefficient link

Bit

R/W

RST

Name

Description

4R/W

BQL

0: each channel uses coefficient values

1: each channel uses channel 1 coefficient values

Table 31.

Dynamic range compression/anti-clipping bit

Bit

R/W

RST

Name

Description

R/W

DRC

0: limiters act in anti-clipping mode

1: limiters act in dynamic range compression mode

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