STA335BWS datasheet(32/68 Pages) STMICROELECTRONICS

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STA335BWS

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6.4.2

De-emphasis

Setting the DEMP bit enables de-emphasis on all channels

6.4.3

DSP bypass

Setting the DSPB bit bypasses the EQ functionality of the STA335BWS.

6.4.4

Post-scale link

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

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

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

6.4.5

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.

Bit

R/W

RST

Name

Description

1R/W

DEMP

0: No de-emphasis

1: De-emphasis

Bit

R/W

RST

Name

Description

R/W

DSPB

0: Normal operation

1: Bypass of biquad and bass/treble functionality

Bit

R/W

RST

Name

Description

R/W

PSL

0: Each channel uses individual post-scale value

1: Each channel uses channel 1 post-scale value

Bit

R/W

RST

Name

Description

4R/W

BQL

0: Each channel uses coefficient values

1: Each channel uses channel 1 coefficient values

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