CS4525 datasheet(78/98 Pages) CIRRUS

78 / 98 page

DS726PP1

CS4525

9.8

Tone Control (Address 08h)

9.8.1

Treble Gain Level (Treb[3:0])

Default = 1000

Function:

Sets the gain/attenuation level of the treble shelving filter.The level can be adjusted in 1.5 dB steps from

+12.0 to -10.5 dB.

9.8.2

Bass Gain Level (Bass[3:0])

Default = 1000

Function:

Sets the gain/attenuation level of the bass shelving filter. The level can be adjusted in 1.5 dB steps from

+12.0 to -10.5 dB.

9.9

2.1 Bass Manager/Parametric EQ Control (Address 09h)

9.9.1

Freeze Controls (Freeze)

Default = 0

Function:

This function will freeze the previous output of, and allow modifications to be made to the master volume

control (address 57h), channel X volume control (address 58h - 5Ah), and bi-quad coefficient registers for

channel A, and channel B (address 0Ah - 54h) without the changes taking effect until the Freeze bit is

disabled. To make multiple changes in these control port registers take effect simultaneously, enable the

Freeze bit, make all register changes, then disable the Freeze bit.

543

Treble3

Treble2

Treble1

Treble0

Bass3

Bass2

Bass1

Bass0

Treb[3:0] Setting

Treble Shelving Filter Gain/Attenuation

0000 ....................................+12 dB

0001 ....................................+10.5 dB

.....................................

1000 ....................................0 dB

.....................................

1110 .....................................-9.0 dB

1111 .....................................-10.5 dB

Bass[3:0] Setting

Bass Shelving Filter Gain/Attenuation

0000 ....................................+12 dB

0001 ....................................+10.5 dB

.....................................

1000 ....................................0 dB

.....................................

1110 .....................................-9.0 dB

1111 .....................................-10.5 dB

543

Freeze

HiZPSig

BassMgr2

BassMgr1

BassMgr0

Reserved

EnChBPEq

EnChAPEq

Freeze Setting

0 ..........................................Register freeze disabled.

1 ..........................................Register freeze enabled.

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